Sanyo CE32LM4R-E is a 32-inch LCD TV with a 1366 x 768 resolution and a 1000:1 contrast ratio. It has a wide viewing angle of 176 degrees, making it ideal for use in large rooms or for watching TV with a group of people. The TV has a variety of inputs, including HDMI, PC, and AV, so you can connect it to your cable box, DVD player, or game console. It also has a built-in digital tuner, so you can watch over-the-air broadcasts without having to connect an external tuner.
Sanyo CE32LM4R-E is a 32-inch LCD TV with a 1366 x 768 resolution and a 1000:1 contrast ratio. It has a wide viewing angle of 176 degrees, making it ideal for use in large rooms or for watching TV with a group of people. The TV has a variety of inputs, including HDMI, PC, and AV, so you can connect it to your cable box, DVD player, or game console. It also has a built-in digital tuner, so you can watch over-the-air broadcasts without having to connect an external tuner.
Part No. 1KA6P2P0008-- N4HK / N4HKE MARCH 2007 Reference No. SM1110007-00
LCD Monitor
Service Manual
Give complete "SERVICE REF. NO." for parts
order or servicing, it is shown on the rating sheet
on the cabinet back of the TV set.
Note
This TV receiver will not work properly in foreign
countries where the television transmission
system and power source differ from the design
specifications. Refer to the specifications for the
design specifications
Contents
Safety precautions/Specifications ..................................................................................................................2
Service Mode/Service Data ........................................................................................................................3~7
HDMI / PC / Component Signal Support Timing List......................................................................................8
Cabinet Disassembly ................................................................................................................................9~11
Block Diagram ..............................................................................................................................................12
Power Diagram ............................................................................................................................................13
Power and Control Diagram ........................................................................................................................14
RS232 Settings ......................................................................................................................................15~16
Troubleshooting ............................................................................................................................................17
IC Descriptions........................................................................................................................................18~19
IC Block Diagrams........................................................................................................................................................................20~26
Cabinet Parts List ........................................................................................................................................27
Pin description of semiconductors................................................................................................................28
Electric Parts List ..........................................................................................................................................29
Model CE32LM4R-E
Service Ref. No. CE32LM4R-E-00
CE32LM4R-E-01
PRODUCT CODE: 113005909
ORIGINAL VERSION:
Chassis No.UK4-B
Please use Schematic Diagram 1KA6P2P0009--
inserted with this Service Manual.
CE32LM4R-E
FILE NO.
-2-
N4HK
SAFETY PRECAUTION
PRODUCT SAFETY NOTICE
SPECIFICATIONS
Product safety should be considered when a component replacement is made in any area of a receiver. Components
indicated by mark in the parts list and the schematic diagram designate components in which safety can be of
special significance. It is particularly recommended that only parts designated on the parts list in this manual be used
for component replacement designated by mark . No deviations from resistance wattage or voltage ratings may be
made for replacement items designated by mark .
!
!
!
1: An isolation transformer should be connected in the
power line between the receiver and the AC line when a
service is performed on the primary of the converter
transformer of the set.
2: Comply with all caution and safety-related notes
provided on the cabinet back, inside the cabinet, on
the chassis or the picture tube.
3: When replacing a chassis in the cabinet, always be cer-
tain that all the protective devices are installed properly,
such as, control knobs, adjustment covers or shields,
barriers, isolation resistor-capacitor networks etc. Before
returning any television to the customer, the service tech-
nician must be sure that it is completely safe to operate
without danger of electrical shock.
Power source AC 220~240V, 50Hz
Television system System I B/G, D/K, L/L’
Colour system PAL/NTSC4.43 (PAL/NTSC4.43/NTSC3.58 IN AV MODE)
Receiving channel UHF: 21~69
VHF: E2-E12, F2-F10, R1-R12
CATV: X, Y, S1-S41, B-Q
Aerial input impedance 75ohm
AV terminal
AV1: CENELEC standard
INPUT: Composite video, RGB and Audio L/R
OUTPUT: TV-output with composite video and audio L/R
AV2: BNC
INPUT: RGB, H and V / Y, Pb, Pr and audio L/R
OUTPUT: RGB, H and V / Y, Pb, Pr
AV3: BNC
INPUT: Composite video
OUTPUT: Composite video
Audio M.Out Cinch: L/R
HDMI
INPUT: HDMI GROUP Standard
PC INPUT:
Serial Port RS232C
INPUT/OUTPUT:
Contrast Ratio 1000:1
Display Resolution 1366 x 768 (WXGA)
Viewing Angles H: 176°, V: 176°
Dimensions (WxHxD) 803 x 493 x 150
Weight 20 Kg
Important recycling information.
Your SANYO product is designed and
manufactured with high quality materials
and components which can be recycled
and reused.
This symbol means that electrical and
electronic equipment, at their end-of-life,
should be disposed of seprately.
In the European Union there are separate collection systems for
used electrical and electronic products.
Please help us to conserve the environment we live in!
Note: This symbol mark and recycle system are applied only to
EU countries and are not applied to other countries of the
world.
RoHS
.This product does not contain any hazardous substances prohibited by the RoHS Directive.
(You will find “R” or “Z” at the last digit of the serial number or an “RSF” label near the rating plate on
the RoHS compliant product.)
WARNING
.You are requested to use RoHS compliant parts for maintenance or repair.
.You are requested to use lead-free solder .
!
!
-3-
N4HK
HOTEL MODE
To enter Hotel Mode press and hold the green button on the remote control for 3 seconds.
Hotel Mode allows the user to set up the function of the set
SER
VICE MODE
To enter Service Mode press and hold the green button on the remote control whilst pressing the 6 button on the tv cabinet at the same time,
alternatively:-
From Hotel Mode press and hold the green button on the remote control for 3 seconds
To select the service item and change data value
+ To select the adjustment item, use the 5 or 6 buttons.
+ To change the service data, use the Volume - (LEFT) or Volume + (RIGHT) buttons.
+ The data which is set in the service mode is stored into the memory IC automatically
EXAMPLE: 000 UK4B 06.20
ITEM NO SECTION VALUE
ITEM
EXIT FROM THE SERVICE MODE
+ Press the MENU button or turn off the TV set by using the Mains switch.
-4-
N4HK
CE32LM4R-E
14485
At FM mode, count the NICAM error, if less than this data, set to NICAM
At NICAM mode, count the NICAM error, if more than this data, set to FM
EU/ASIA
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
70
69
68
67
66
65
64
63
62
61
15500
0
40
10
224
15
12
10
6
224
15
10
8
3
224
15
8
7
1
224
15
8
6
0
0
0
0
0
0
8
1
0
45
2450
460
31
0
0
23
27
25
22
31
27
36
21
38
44
38
32
31
127
16
1
1
1
133
2
1
50
14
0
0
0
0
0
60
1.00.13
15.00.02
MF6.20
UK4B
Init TV
ISP Mode
Scaler version
SubMic version
Power/Hour
Error
DCXO
DCXO Auto
NicamLowErLimit
NicamUpErrLimit
AutoZoom 4:3
Azoom 4:3 def
Azoom 16:9 def
WSS
Gid-SCART
Software version
For initialise the TV, all tuning data is elased
Bus line stops. For control by PC
Scaler soft version --- 15.00.02 is example
Sub micon software version --- 1.00.13 is example
Working hours since first ON
Bus Error countert
DCXO alignment
DCXO AUTO
Zoom setting
Zoom setting
Zoom setting
WSS 0:NO 1:Yes Depend on the signal, change 16:9 / 4:3
Grid scart
black bar detecting Stitch --- Not using
RGB data
PC Colour offset
PC tint offset
Dynamic Brightness data
Dynamic Colour data
Standard Contrast data
Dynamic Contrast data
Dynamic Sharpness data
Standard Brightness data
Standard Colour data
Standard Sharpness data
Eco Brightness data
Eco Contrast data
Eco Contrast data
CRT RGB output SW, CRT-1
Composit colour, delay of UV to Y
CVBS colour, delay of Y to C
Noise reduction AUTO: set the limit of high
Noise reduction AUTO: set the limit of low
Noise reduction MAX setting
Noise reduction MAX setting
Noise reduction MAX setting
Noise reduction MAX setting
Noise reduction MAX setting
Noise reduction MID setting
Noise reduction MID setting
Noise reduction MID setting
Noise reduction MID setting
Noise reduction MID setting
Noise reduction MIN setting
Noise reduction MIN setting
Noise reduction MIN setting
Noise reduction MIN setting
Noise reduction MIN setting
Noise reduction off setting
Noise reduction off setting
Noise reduction off setting
Noise reduction off setting
Noise reduction off setting
SOC vsp
Forced Slicing Level fixing SW
Forced Colour-On, at poor signal condition intentionally Colour ON
Chroma bandpass frequency setting
Bypass Chroma Delay Line
Peak White Limiting D-A Converter level
Peak White Limiting
Automatic Colour Limiting
Front End colour offset
Front End Contrast offset
Front End Brightness Offset
TV TINT offset
White Stretch 0:Off 1:On
Black Stretch 0:Off 1:On
Eco Sharpness data
Enable AnalogOut
UV Latency Comp
UV Latency CVBS
Noise High Min.
Noise Low Max.
LTI_base_bainN3
LTI_steep_gainN3
LTI-CoringN3
Peaking-coringN3
DNRN3
LTI_base_bainN2
LTI_steep_gainN2
LTI-CoringN
Peaking-CoringN2
DNRN2
LTI_base_bainN1
LTI_steep_gainN1
LTI-CoringN1
Peaking-coringN1
DNRN1
LTI_base_bainN0
LTI_steep_gainN0
LTI-CoringN0
Peaking-coringN0
DNRN0
SoftClipLevel
FSL
FCO
BPS
CB
PWLDAC
PWL
ACL
FESaturation
FEContrast
FEBrightness
Tint NTSC
White Stretch
Black Stretch
PV-SH-EC
PV-CT-EC
PV-CL-EC
PV-BR-EC
Black Bar
RGB
PCCOL
PCTINT
PV-BR-DY
PV-CL-DY
PV-CT-DY
PV-SH-DY
PV-BR-ST
PV-CL-ST
PV-CT-ST
PV-SH-ST
SERVICE DATA
-5-
N4HK
SER
VICE DATA (contd.1)
71
81
80
72
74
76
78
79
77
75
73
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
PA-B5-MU
PA-B4-MU
PA-B1-MU
PA-B2-MU
PA-B3-MU
PA-ST-MU
PA-LM-MU
PA-EF-MU
PA-TR-MU
PA-BA-MU
PA-B1-V0
PA-B2-V0
PA-B3-V0
PA-B4-V0
PA-B5-V0
PA-ST-V0
PA-LM-V0
PA-EF-V0
PA-TR-V0
PA-BA-V0
Lipsync delay
FFI
E2D
ADC-AV-L
NIC-LEV
MONO-LEV
DEC-LEV
OP CLIP
BBE-PROC
BBE-CONT
AVL-MOD
AVL-WGT
AVL-LEV
AUX3 Gain
MASTER VOL
OP BBE
OP DUB DBE
OP EQUAL
OP AUDIO CINFIG
Bright
LTIbaseGain PAVI
LTI PAVI
HDP LUT PAVI
V Filter FE
H Filter FE
LTI base gain
LTI
HDP LUT
V Filter
H Filter
CTI
APC
V Offset in
U Offset in
NTSC ColourM 3-3
NTSC ColourM 3-2
NTSC ColourM 2-3
NTSC ColourM 2-2
NTSC ColourM 2-1
NTSC ColourM 1-3
NTSC ColourM 3-1
NTSC ColourM 1-2
NTSC ColourM 1-1
PalColourM 3-3
PalColourM 3-2
PalColourM 3-1
PalColourM 2-3
PalColourM 2-2
PalColourM 2-1
PalColourM 1-3
PalColourM 1-2
PalColourM 1-1
Out Reverse Order
Out Scan Type
Out Hor Freq
Out Bit Resolut.
Out Signal Type
DACurrent SelOut
1
1
1
1
1
0
0
128
128
175
2005
1958
128
222
0
128
2033
243
128
2015
1966
128
221
0
0
0
0
0
23
23
0
0
0
32
27
0
0
0
64
2
1
0
0
90
60
2
0
8
7
7
0
15
15
15
15
15
0
0
0
32
0
1
5
20
20
40
50
40
39
34
2
2
5
40
50
55
60
63
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
LIP SYNC ADJUSTMENT
FFI
E2D
ADC-AV-L
NICAM audio level
Monoral audio level
DEC-LEV
OP CLIP
BBE-PROC
BBE-CONT
AVL-MOD
AVL-WGT
AVL-LEV
Audio out level
Volume MAX level
OP BBE
OP DUB DBE
OP EQUAL
OP AUDIO CINFIG
Brightness offset
LTIbaseGain PAVI
LTI PAVI
HDP LUT PAVI
Vertical filter Front End change sharpness
Horizontal filter Front End change sharpness
Sharpness LTI base gain offset
Sharpness, LTI offset
Sharpness, HDP_LUT offset
PC, component and HDMI sharpness filter
PC, component and HDMI sharpness filter
CTI Disable
APC
AGC V BLANKING OFFSET
AGC U BLANKING OFFSET
NTSC colour setting
NTSC colour setting
NTSC colour setting
NTSC colour setting
NTSC colour setting
NTSC colour setting
NTSC colour setting
NTSC colour setting
NTSC colour setting
Pal colour setting
Pal colour setting
Pal colour setting
Pal colour setting
Pal colour setting
Pal colour setting
Pal colour setting
Pal colour setting
Pal colour setting
Out Reverse Order
Out Scan Type
Out Hor Freq
Out Bit Resolut.
OUT SIGNAL TYPE
CRT RGB output SW, CRT-0
-6-
N4HK
SERVICE DATA (contd.2)
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
HD SACB
HD SACG
HD SACR
PC SAGB
PC SAGG
PC SAGR
PC SACB
PC SACG
PC SACR
SAGB
SAGG
SAGR
SACB
SACG
SACR
BLOG
BLOR
WPR
WPG
WPB
AutoWhiteBal
VPOSHD
HPOSHD
CLKADJHD
PHAADJHD
InitPanelNVM
PANEL
BL PWMFrew
PL PWMMax
PL PWMMin
Backlight
PGB
PGG
PGR
CL
Soft.AGC time
Soft.AGC On
Blue BlackNoMute
Y dly YUV
Y dly CVBS
Factory mode
STARTUPLOGO
PWR-ONKEY
PWR-REST
PWR-SAVING
TXT-SUBCODE
TXT-H-POXB
TXT-H-POSB
TXT-H-POSA
TXT-H-POS
TXT-SPLIT
TXT-ON
INCL-AV
AV2-OUT
BPBS
BPB2
BPB
GD
IF
0IF
0IF
`+AGC Takeover Ld
`+AGC Takeover Ld
AGC Take over
AGC Speed
BEEP-FRQ
BEEP-VOL
PA-B5-TH
PA-B4-TH
PA-B3-TH
PA-B2-TH
PA-B1-TH
PA-ST-TH
PA-LM-TH
PA-EF-TH
PA-TR-TH
PA-BA-TH
146 B
18
G
145
HDD CUT OFF R
25
25
25
PC DRIVE R
G
B
19
19
19
PC CUT OFF R
G
B
27
27
27
B
G
DRIVE R
17
17
17
CUT OFF R
G
B
32
32
BLOG
BLOR
127
127
127
WB
WB
WB
0
128
128
128
0
0
0
255
240
16
Auto White Balance, need special YPbPr signal
V-Position of component input
H-Position of component input
clock adjustment of component input
Phase adjustment of component input
Initialise sedna NVM
Panel setting, should be 16
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
Panel setting
BEEP-VOL
BEEP-FRQ
AGC Speed
AGC data
IF
Group delay
0
2
32
254
20
1
4
35
40
50
63
55
30
5
2
3
36
34
1
1
1
1
1
1
1
3
10
2
54
0
1
1
BPB
BPB2
BPBS
AV2-OUT
INCL-AV
Text 0:No 1:Yes
text setting
Tex t H
text setting
text setting
text setting
text setting
PWR-SAVING
PWR-REST
PWR-ONKEY
STARTUPLOGO
Factory mode, to stop the I2C bus
CVBS Y delay
1
0
0
90
97
YUV Y delay
0
0
0
0
0
0
1
PGB
PGG
PGR
CL
Soft.AGC time
Soft.AGC On
Blue Black No Mute --- No signal - blue
203
Back Light Brightness
PL PWMMin, PWM data of backlight min
PL PWMMax, PWM data of backlight MAX
BL PWMFrew, setting PWM frequency of backlight
-7-
N4HK
SERVICE DATA (contd.3)
274
275
276
277
278
279
280
282
281
268
267
266
265
269
270
258
259
260
261
262
263
264
273
272
271
237
257
256
255
254
253
252
251
250
249
248
247
246
245
244
243
242
241
240
239
238
224
225
226
227
228
229
230
231
232
233
234
235
236
HD SAGR
HD SAGG
HD SAGB
Get Dig CH
H Filter RGB
HDD RET x255
GAMMER
RF wait x8m
BE wait x8m
MS RF wit x8m
MS AV wit x8m
SEDNA err
TXT37 err
PHI1 FixTo 0
Force NR off:RGB
Last Shipping Co
MON OFF0 Y1 F2
DIG PHI1
HDD PHI1
CHSE
ATS Dummy Date
42 v pha shif
Disable CombToth
Disable LHSR:RGB
TV
AV1
RGB
AV2
AV3
AV4
HDMI
AV AUTO SHUT OFF
Comb Sw G:RGB
Reduce F Ga:RGB
Monitor LSHR
42inch
FanLockDetection
RECTIME LIMIT 3H
AV IGN PH INF
HDD Upgrade Mode
FAN TEST
EPG Dummy Data!
ALWAYS REPLAY!
PC SHARP
PC COL TMP
ATS
AFC
Colour Sys
Path HDD
HDD
DIG
HD
PC
EU0UK1IRE2UKIR3
P&P
WEL TXT
SURROUND
BASS
Write I2C
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
25
25
25
23
78
128
43
240
240
240
2
3
HDD DRIVE R
G
B
Get Dig CH
H Filter RGB
POWER ON WAIT TIME
GAMMER CORRECTION
Picture mute time of RF channel changing
Picture mute time of Back end changed
Picture mute time of changing from AV/BE to RF
Picture mute time of AV changing
Scaler bus error counter
Text error counter
Sync detect time setting, 0 is AUTO
Noise reduction SW at RGB
Last Shipping Co
Monitor version setting
When Digital, time setting of the sync
When Digital, time setting of the sync
CHSE
ATS Dummy Date
42 v pha shif
Disable CombToth
Disable LHSR:RGB
TV SW
AV1 SW
RGB SW
AV2 SW
AV3 SW
AV4 SW
HDMI SW
AV SHUT OFF SW
RGB PICTURE CHARACTERISTIC
COMB CHARACTERISTIC
42INCH 1 OTHER 0
FAN LOCK DETECTOR W
HDD 3hour
AV IGN PH INF
HDD Upgrade Mode
FAN TEST
EPG Dummy Data!
HDD always replay 0:No 1:Yes
PC SHARPNESS
PC colour temperature
Automatic tuning 0:Off 1:On
AFC
Colour sys
HDD Path SW
Hard Disk 0:No 1:Yes
DVT digital 0:No 1:Yes
HDMI 0:No 1:Yes
PC 0:No 1:Yes
Tuning 0:EU 1:UK
Plug & Play 0:No 1:Yes
Welcome text 0:No 1:Yes
Surround 0:No 1:Yes
Bass boost 0:No 1:Yes
-8-
N4HK
HDMI / PC / COMPONENT SIGNAL SUPPORT TIMING LIST
1366_768
1360_768
48.36
47.70
60.00
60.00
WXGA
WXGA
1280_1024
1280_1024
1280_1024
1280_1024
1280_1024
1280_1024
1280_1024
1280_1024
1280_1024
1280_1024
1152_864
1152_900
1152_900
1152_900
1152_870
1280_960
1280_1024
1600_1200
1280_960
1024_768
1024_768
1024_768
1024_768
1024_768
1024_768
1024_768
1024_768
1024_768
1024_768
1024_768
832_624
800_600
800_600
800_600
800_600
800_600
800_600
800_600
800_600
640_480
640_480
640_480
640_480
640_480
640_480
720_400 31.47
31.50
37.50
37.86
37.86
35.00
34.97
35.16
37.90
46.90
32.70
34.50
37.90
38.00
38.60
49.00
48.40
56.50
60.000
44.00
46.90
47.00
48.50
58.03
60.31
75.00
80.00
75.00
75.08
75.00
60.00
68.68
75.06
71.40
75.60
61.85
66.00
SXGA
SXGA
SXGA
SXGA
SXGA
SXGA
SXGA
SXGA
SXGA
SXGA
SXGA
SXGA
SXGA
MAC_Normal 21”
Mac.
Mac_.
UXGA VESA 60Hz
61.20
64.20
81.13
76.97
71.69
65.20
70.40
76.107
72.00
67.19
61.00
60.24
60.00
79.976
62.50
63.370
63.34
63.74
63.79
63.90
60.00
60.18
60.01
59.98
60.01
58.60
75.025
60.00
75.08
75.70
74.92
72.00
60.02
58.30
58.20
54.58
75.00
70.00
60.00
74.00
60.31
60.51
61.03
55.38
51.09
75.00
60.32
56.25
66.60
67.00
74.38
72.81
75.00
60.00
70.09
DOS(VGA)
DOS(VGA VESA 60Hz)
VGA VESA 75Hz
VGA VESA 70Hz
VGA
Mac.
Mac LC 13”
SVGA VESA 56Hz
SVGA VESA 60Hz
SVGA VESA 75Hz
SVGA
SVGA
SVGA
SVGA
SVGA
Mac.
XGA VESA 60Hz
XGA VESA 70Hz
XGA VESA 75Hz
XGA
XGA
XGA
XGA
XGA
XGA
XGA
MAC_Normal 19”
SXGA VESA 60Hz
SXGA VESA 75Hz
Remark
Vertical
Frequency
(Hz)
(kHz)
Frequency
Horizontal
Resolution
Resolution Horizontal
frequency (KHz)
Vertical frequenc
y
(Hz)
Dot Clock
Frequency(Mhz)
Remark
720x480 15.735 60i 12.27 SDTV 480i
720x576 15.625 50i 13.50 SDTV 576i
720x480 31.25 60p 27 SDTV 480p
720x576 31.25 50p 27 HDTV 576p
1280x720 45.00 60p 74.25 HDTV 720p
1280x720 37.50 50p 74.25 HDTV 720p
1920x1080 33.75 60i 74.25 HDTV 1080i
1920x1080 28.13 50i 74.25 HDTV 1080i
1920x1080 31.25 50i 74.25 HDTV 1152i
-9-
N4HK
Mechanical Disassemblies (CE32LM4R-E)
1. Rear Plate Removal
Remove screws (A)
Before removing the Rear Plate, remove the screw from the Earth wire (B)
and remove
the Antenna cable (C).
C
-10-
N4HK
PWB, POWER
PWB, MAIN
FAN
Note: Control Board is fitted on cabinet front.
Location of circuit board and electric parts
PWB, SUB AV
PWB, SUB AV
A
A
A
Screw A = M3 x 6
2. Chassis and fan removal
Mechanical disassemblies cont.
-11-
N4HK
3. Cabinet Back Removal
(1) Remove the lead wire of Control board from Main board
(2) Remove the lead wire of the inverter from the power board/main board
(3) Remove the LVDS cable from LCD panel
(4) Remove cables from Inverter area or power and main board
(5) Remove screws A (14 pcs)
(6) Remove the cabinet back
PWB, SUB AV
Mechanical disassemblies cont.
-12-
N4HK
BLOCK DIAGRAM
This is a diagram for all models and therefore differs slightly from the actual block diagram.
LCD PANEL
SCALER
Digital
Interface
ADC
D-RGB
TEXT/OSD MIX
YC
IF
VIDEO SWITCH
RGB/YPBPR
VIFIN1
LOC2
PANEL
LVDS
VIF
TUNER
GTV
SCART1
CVBS1
TV OUT (CVBS)
RGB1
CVBS3
RGB
SWITCH
VIDEO
SWITCH
BA7652
SVO6/CVBS6
CVBS
CVBS_Y4
CVBS_Y5
SWO1_CVBS20_Y20
CVBS30_Y30
DVBO_IFVO_FMRO
HDMI
TMDS
BA7603
SiI9021
HDMI
DECODER
D-RGB
RGB
CVBS
PV10_23
IN_R
IN_G
IN_B
R3_PR31
G3_Y31
B3_PB31
PC
RGB
RGB
SWITCH
BA7657
MATRIX
COMPONENT
YPBPR
RGB
H/V
Y/G
Pb/B
H/V
Pr/R
H
V
OUT IN
OUT
IN
Outline
-13-
N4HK
1
2
3
4
5
6
KQ
1
1
POWER 1
ON/OFF
IC6604
6V
POWER 4
PANEL ON
ON/OFF
IC6613
IC6600
IC6601
5V
3V3 STB
5V STB
24V
IC6610
IC6609
IC6608
IC6607
IC6606
IC6605
IC6603
IC6602
13V_PWR
9V
12V_FAN
5V_SW
3V3_SW
D5V
D3V3
1V8_SW
D1V8
POWER ARCHITECTURE
D6601
D6621
D6618
D6616
D6607
D6606
D6605
D6604
D6615
D6614
TO IC801
PIN E10
5V
1
2
3
4
5
KQ
24V
6V
D3V3
D5V
3V3_SW
5V_SW
12V_FAN
9V
PROTECT ARCHITECTURE
2
3
4
5
KR
POWER
TO
UNIT
POWER DIAGRAM FOR UK4B
-14-
N4HK
Power and Control Diagram
PJ-NET
POWER
CONNECTOR
MAIN
SUB-AV-BNC
SUB-AV SOCKET
1KA9W0640017-
K2009
TX
RX
5V
5V
3.3V
12V
3.3V
5V cct
K2014
K2013
K2006
KCPA
TO
G19
KCP
IC1551
1AA93ABAF300X
KG
1 2 3 4
P_FAIL
5V1A
KA
KQ
16V Main Supply
1
8
1
5
12V
5V
3.3V
K3000
cct
K3A
12V
K3003
K603
K303-03
K3Q
K3R
KR
5V S/B
K605 K3002
K605-02
5V
gnd
16V
12V
Gnd
Gnd
Gnd
Gnd
NC
NC
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
13
14
5V S/By
Gnd
D5V
Power on
ON/OFF
VBR
NC
NC
NC
NC
Gnd
Gnd
K3001
NC
NC
NC
NC
NC
1
11
1
6
POWER_3
BL_ADJ
BL_ON
3.3V S/B
KP
R1600
R1601
gnd
1AA0B10H086JA
1AA0B10H087D0
1AA0B10H086JB1AA0B10H086G0
-15-
N4JK
The TV control commands are used to control a TV through RS232C from a computer.
Serial Interface Specification
Transfer Specification
1. Transmission Speed : initial setting value is 19200
2. Transmission speed can be changed by service mode (hotel mode)
Connection
The designated RS232C serial cable that is provided with the LCD monitor must be used for a connection between a computer and a LCD monitor
The TV command is defined by one command / one line that starts with “C” and ends with carriage return (0x0D)
There are two types of commands:
1. Functional Execution Commands e.g. Co5[CR] (see table on following page)
2. Status Read Commands e.g. “CR0 [CR] (see table on following page)
Setting the monitor address in RS232 mode
To access hotel mode press the green button on the remote control and hold for 5 seconds. The following screen will appear
Each monitor can have a specific address e.g. 007 which helps command that monitor individually and will not affect other monitors connected to
a controlling pc.
Address format command
The adressing format command is used for operating multiple monitor sets from a single pc via the RS232 command line. If you set your monitor
address to ‘000’ it will never respond to any addressing command from the pc. If the address from the pc is ‘FFF’, all monitor sets will execute the
command.
The address format command is defined by one command, one line which starts with ‘A’ and ends with carriage return (0x0D). An address is
added at the top of a control command.
Example:
Functional execution command: “A001C05” [CR] means the address is 001 and the control command is C05
Status read command: “A001CR0” [CR] means the address is 001 and the command is CR0
The monitor can set its own address in the hotel option (see above). The address range is 000 - 999, the default address will be 000.
The baud rate indicates the unit transfer speed of data from the pc the the monitor sets.
RS232C SETTINGS
ITEM
SPECIFICATION
Synchronous system
Asynchronous
Transmission Speed
9600 / 19200
Data Length
8 bit
Parity
None
Stop Bit
Flow Control None
1
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
(D-Sub 9 Pin) (D-Sub 9 Pin)
CD
RXD
TXD
DTR
SG
DSR
RTS
CTS
RING
N.C.
RXD
TXD
N.C
SG
N.C
RTS
CTS
N.C.
MENU
Hotel mode ON / OFF
On program OFF/ 1~99
Preset ON / OFF
Address 007
Baud Rate 19200
/ AV1-AV3 /RGB/ HDMI/ PC
Hotel
: Select
: Adjust
: Exit
-16-
N4JK
Functional Execution Command Table
Command
Item
Comment
Toggle (Dynamic, Standard, Eco, Personal)
“---”_means “No Function”
CF DEA RMCN
CF DEA RMCY
CF CLOK OFF
CF CLOK ON
CF DPMS OFF
CF DPMS ON
C92
C64
C76
C75
C74
C73
C72
C71
C70
C30
C0F
C29
C28
C27
C26
C25
C24
C23
C01
C00
Picture
AV1 direct
Wide “Normal” direct
Wide “Full” direct
POWER ON
POWER OFF
Wide “Auto” direct
Wide “Natural” direct
Wide “Zoom 16:9” direct
Wide “Title in 16:9” direct
Wide “Zoom 14:9” direct
Wide “Title in 14:9” direct
RGB direct
AV2 RGBHV direct
AV2 YPbPr direct
AV3 direct
HDMI direct
PC direct
PC Auto adjust
Factory settings
Power save ON
Power save OFF
Child lock ON
Child lock OFF
RC inhibition OFF
RC inhibition ON
Status Read Command Table
Command
Item
Note
“---”_means “No Function”
C** Panel operating time
CR0
CR1
CR WIDE
CR PICTURE
CR SIGNAL
CR CHILD
CR DPMS
Power
Input mode
Wide mode
Picture mode
Signal existance
Child lock
DPMS
On, Standby, Power error,...
AV1, AV2, ..., HDMI, PC
Auto, Normal, Full, ...
Dynamic, Standard, ...
Signal / No signal
On / Off
On / Off
RS232C Command Tables
-17-
N4HK
TROUBLE SHOOTING
Item
Condition Check point
1
2
3
4
5
6
7
8
9
No power
No power
No power
No backlight
Faulty picture
Faulty picture
No RC
No key SW
Fan faulty
** HINT**
In most cases the problem is caused by the SUB POWER board or COMP
board.
Try replacing them first, then check the LCD panel.
NO LED
NO LED
LED brighter
After power on, once panel lights
then keep black out
No colour, poor picture
Darker / brighter picture etc.
Visible line on the picture
Part of the display is poor
No working of RC handset
No working or the front key Switch
After indication of the display,
then 30 seconds later, come into
standby
Change the FAN
Change the FRONT board
Change the RC or FRONT board
Change the panel
Change the COMP board
>>If not, change the panel.
Change the LCD panel
Check to voltage of KR-3 --- 5V
>>Change the power board
Check the fuse on the FILTER board
Check the connection of the AC cord.
(AC plug and junction part)
Check the voltage of
Housing KQ-2 ----13V
IC6602 ---- 9V
IC6603 ---- 12V
IC6604 ---- 6V
Housing KR-1 ---- 24V
>>Change the COMP or SUB POWER board
** Refer to the power diagram
-18-
N4HK
IC Descriptions for UK4B
IC1110
This is a switching IC, NJM2233BM, which allows the sync signal input on monitor sets to be switched between pin
20 of SCART 1 (conventional) and pin 14 of SCART 1 (SIS signal). The IC takes a 5V supply and is switched by the
control line SIS.
IC1205
This a ROHM BA7603F triple video switch which allows the RGB input to be switched between SCART 1 and
SCART 2. The switch is controlled by the RGB_SW line from the IC.
IC1271
This a large multiway electronic switch, MM1631BJBE. Via the I
2
C lines the cpu can select any audio input L/R pair
and feed them to scart 3 or IC801.
IC151
BA2904F - this is an OP-AMP used to amplify the AGC voltage back to IC801.
IC1801/1802
PCA9534PW - These are I
2
C expander IC’s. They convert I
2
C commands from IC801 into control lines.
IC1841/1851
These are OP-AMPS used to control the speed of the fans
IC2002/2003
6db AMP/BUFFERS that compensate for internal loss in the YPbPr / RGB / HV loop.
IC2006
RS232 to 5v decoder / encoder. It converts the RS232 signal from K2008 into a TTL signal that can be understood
by the CPU IC2010
IC2007 / 8 / 11
5v to 3.3v logic conversion for the CPU IC2010
IC2009
Reset pulse generator for the CPU IC2010
IC2010
CPU with internal program flash memory. The software version programmed into this device can be found in the
service menu. The RS232 data is converted into I
2
C data by this CPU and fed to the main CPU via KCPA.
All RS232 protocol are generated by this IC.
IC2012
This is a 5v regulator.
IC4001
This is a SST SST39VF020 CMOS multi-purpose flash with a capacity of 2Mbits. It is connected to the LOC using
address lines, data input/output, write enable and control lines. The flash IC is powered by the 3V3 SW supply.
IC4002
This is a ROHM BD5260G open drain voltage detector IC which works in conjunction with the main power and the
3.3V standby line to control the back lights.
IC601
This is a “current mode PFC controller” operating in transition mode. It is used in conjunction with L603 as active
power phase correction.
-19-
N4HK
IC Descriptions for UK4B (continued)
IC6600
This is an LA5754 voltage regulator. It provides the 12v supply for the LCD panel.
IC6601
This is a BA33BC0FP voltage regulator. It converts the 5v standby supply to 3.3v.
IC6602
This is a BA09FP-E2 voltage regulator. It converts 13v to 9v.
IC6603
This is a BA12FP-E2 12v voltage regulator. It converts the main 13v supply down to 12v for the fan.
IC6604
This is a LA5754MP voltage regulator. This IC converts the main 13v supply down to 6v. IC801 can switch this IC on
and off via control line “Power 1”. Consequently all supplies developed from this 6v will also be switched (see power
architecture diagram on page 8)
IC6605 / 6 / 7 / 8 / 9 / 10
These are voltage regulators which convert the switched 6v supply down to 5v, 3.3v and 1.8v.
IC6613
This is a TC7SH02 2-INPUT NOR GATE. This IC controls the 5v power to the LCD panel. It is switched via control
lines “Power 4” and “Panel on”.
IC701
This is a THC63LVDM83R LVDS converter IC. This IC converts 3 sets of 8 bit data (R, G & B) into 4 channel and
clock data stream to the LCD panel.
IC8001
This is a HDMI receiver / convertor. HDMI data from K1006 is fed into this IC. The IC then extracts the video and
audio in digital format and sends the data to IC801. Audio data is converted to analogue via IC8501
IC801
This IC is the main control IC for the entire TV.
It incorporates:-
1) CPU for control and on-screen graphics presentation.
2) Video signal processor for controlling picture presentation and quality.
3) LCD scaler for converting different resolutions to the resolution of the LCD.
4) 100 page text decoder.
5) Stereo sound decoder.
6) Multi-system decoder (PAL, NTSC, SECAM etc.)
IC802
This is an 8K x 8 bit EEProm. It is used to store all the calibration data and user settings. When a new IC is fitted,
the CPU (IC801) will detect it and initialise the IC to the default factory settings.
IC8131
This is a 512 x 8 bit EEProm. It is used to store the resolutions that the tv is able to display along with the
manufacturer, date of manufacture and model number. An external device (eg DVD) with HDMI will read this
EEProm to determine which resolution signal to send to the tv.
IC8141
This is an I2C isolation device
IC8501
This is a digital to analogue converter. It is used to convert the HDMI digital audio data to analogue.
IC8502
This is a dual OP-AMP and is used to bufffer the HDMI analogue signal to the audio selector IC (IC1271)
-20-
N4HK
x
xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxx
Fig 1. Block diagram of LOC II
QSS SOUND IF
AGC
QSS MIXER
AM DEMODULATOR
VISION IF/AGC/AFC
PLL DEMOD.
VIDEO AMP.
SOUND TRAP
GROUP DELAY
VIDEO SWITCH
VIDEO IDENT.
VIDEO FILTERS
PAL/SECAM/NTSC
H/V SYNC SEP.
H-OSC. + PLL
SIFIN/DVBIN
AGCOUT
VIFIN
CVBS3/Y4
C5/C6
CVBS/30
C4/C30
CVBSO/PIP
SSIF
AUDIO CONTROL
DVBO/FMRO
SWITCH
CVBS2/Y5
IFVO/SVO/
YSYNC
DVBO/IFVO/
QSSO/
SOUND PLL
DEEMPHASIS
CVBS/Y6
SVO/FMRO
BASE-BAND
FLASH
OSD
LINE
MEMORY
OVERLAY
MIXER
AMOUT
DELAY LINE
DECODER
Y / CVBS / RGB / YP
R
P
B
SWITCH
CVBS20 / Y20
INSW2 / C20
R2 / P
R
/ C21
G / YIN2 /
B / P
B
IN2
CVBS / YOUT
INSSW3
R / P
R
IN3 / C31
B /PBIN3
G / YIN3 /
CVBS / Y21
CVBS / Y31
H/Vsync
Y/CVBS
C/CVBS
U
V
ANTI
ALIAS
FILTERS
AUDIO DSP
DACs
AUDIO SELECT
ADCs / DACs
ADCs
TBC
AGC
2D/3D
COMB
FILTER
RDS
CVBS/Y
U
V
DEINTER-
LACER
NOISE
REDUCT.
BLACK STRETCH
WHITE STRETCH
HORIZ. SCALER
PEAKING / LTI / CTI
COLOR FEATURES
YUV
TO
RGB
MATRIX
ADC
STEREO SOUND
DECODER
AUDIO IN/OUT
LINE O/I
C, S
C, SW
I2S HP-OUT LS-OUT
MEMORY
INTERFACE
CNTRL
ADDR
DATA
6
12
16
16 MBit
SDRAM
8051
MICRO-
CONTR.
TXT
DECODER
OSD
OSD
BLENDER
I/Os
24
RGB/YUV
alpha
OUTPUT
FORMAT
RGB
DACs
RGB/
ITU
H, V,
CLK,
ClkRef
4 30/10
RO
GO BO
AM
DIGITAL
VIDEO
OUT
PAR.
VIDEO
INTER-
FACE
IN_R
IN_G
IN_B
SOGIN
RBIAS
AHS
AV S
ACLK
ASCL
ASDA
I
2
C
HIF
LPLL TEST
IMAGE
GEN.
INPUT SELECT
RGB 24
RGB 24
YUV 24
RGB 24
YUV 24
AUTO
ADJUST
COLOR
MATRIX
HORIZ. / VERT.
UP / DOWN
SCALER
OUTPUT
COLOR
LOOK-UP
TABLE
DITHER
UNIT
OUTPUT
INTERFACE
LVDS AND
TTL
RSP[13:0]
RSN[13:0]
RGB18/
RGB24
RGB30
RGB24
YUV24
CRYSTAL
OSCILLATOR
PANEL
PLL
FLASH
INTERFACE
GLOBAL
CONTROL
UNIT
ON-CHIP
MICROCONTROLLER
80C51
TIMER
COUNTER
UART
I
2
C
RXC TXDSCL SDA
GPIO
PWM
GPIO[23:16]
GPIO[15:0]
PWM[2:0]
INT_N
POR_N
RST_N
CFG[15:0]
FONT AND
CHARACTER
RAM
T[1:0]
SRAM
IC801
IC BLOCK DIAGRAMS
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Sanyo CE32LM4R-E is a 32-inch LCD TV with a 1366 x 768 resolution and a 1000:1 contrast ratio. It has a wide viewing angle of 176 degrees, making it ideal for use in large rooms or for watching TV with a group of people. The TV has a variety of inputs, including HDMI, PC, and AV, so you can connect it to your cable box, DVD player, or game console. It also has a built-in digital tuner, so you can watch over-the-air broadcasts without having to connect an external tuner.
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