Service Manual
AV Surround Processor
Contents
IFILE No.
I
tiT-F450 (AU)
Specifications ................................................................... 1
IC Block Diagram & Description ....................................... 8
.:.
Removal and Installation .................................................. 1
Block Diagram
.................................................................. 11
System Connection ..............................~...........................2
Schematic Diagram (Main Amplifier) ............................... 12
Service Mode ................................................................... 3
Wiring Diagram (Main Amplifier) ...................................... 14
Exploded View (Cabinet & Chassis) ................................ 4
Schematic Diagram (Front) .............................................. 16
Parts List ..........................................................................5
Wiring Diagram (Front) ..................................................... 17
“” This service manual consists of “HT-F450U” (Main unit), “RB-HT47°
(Remote control),
“SX-CE450” and “SX-SR450” (Speaker system).
REFERENCE No. SM580786
. . .
)
SPECIFICATIONS
,.. . . -.
Output power:
Oenter amplifien 15 Watts (at 4 ohms, 10
0/0 distortion)
Surround Amplifiec 15 Watts x 2 (at 4 ohms, 107. distortion)
Inputs
AV1 lN/AV2 lN/AV3 IN ‘AUDIO” .........300 mV/47k ohms
AVI INIAV2 lN/AV3 INUVIDEO” ........... 1 Vp-p / 75 ohms
LINE IN “AUDIO” ................................. 300 mV/ 47k ohms
outputs
AV2 OUT “AUDIO” .............................. 300 mV 147k ohms
PROCESSOR OUT “AUDIO” ..............1 V/ lk ohm
AV2 OUT MONITOR OUT “VIDEO” .... 1 Vp-p / 75 ohms
CENTERBURROUND SPEAKERS ...4 ohms
Power requirements ...................... AC 230- 240V, 50 Hz
Power consumption ...................... 60 Watts
Dimensions (W x H x D) ................270 x 80 x 330mm
Weight
...........................................
3.8 kg
Specifications subject to change without notice.
.
.. ,,.. ;“.,,.’- .,..
.
.. . ..- ..-.’- -“.-:-”
.. .
Speaker systems
Center speaker (SX-CE450)
Unit Used
Full range ................................. 10 cm cone type
Maximum music power
handling capacity
........................... 30 Watts (peak)
Nominal impedance
....................... 4 ohms
Dimensions (W x H x D) ................. 270x 130x 145mm
Weight
............................................ 1 kg
Surround speakers (SX-SR450)
Unit Used
Full range
................................. 10 cm cone type
handling capacity
........................... 30 Watts (peak)
Nominal impedance
.......................40hms
Dimensions (W x H x D) .................180 x 130 x 130mm
Weight (per speaker)
..................... 0.7 kg (per speaker)
..
“Dolb~, the double-D symbol ❑a and “PRO LOGIC” are trade-
mark of Dolby Laboratories Licensing Corporation. Dolby Noise
Reduction system is manufactured under license from Dolby
. ._
Laboratories Licensing Corpora~ion.
REMOVAL AND INSTALLATION
● Disconnect the power cord’s plug from the electrical outlet.
● All wiring should be returned to the original position after work is completed.
● First ha~e ready many the new FIXERS (614 129 4971) for replacement.
● Arrange the lead wires so that they are not near the heat sink.
WIRING “LAYOUT ---
FIXER
./—
u u
u
I 1
-1-
..’. :
,.
,’
SYSTEM CONNECTION
Center and Surround Speaker Connections
SX-CE450
SX-SR450
Center speaker
SX-SR450
Rightsurround
Left
surround
speaker
speaker
L
--------------
SERVICE MODE
‘o enter the key service mode, first simultaneously press the SOURCE and SURROUND MODE buttons. This accesses the service
node entry state. As the service mode entry state is discontinued after 1 second elapses, the unit will enter a service mode only if the
lext key is pressed within 1 second.
1. Checking the key input signal connections
● To enter this mode, press MASTER VOL UP button during the service mode entry state.
● When the unit enters this mode, 3 CENTER MODE LEDs and all of the VOLUME LEDs light.
● In this mode, each time one of the keys listed below is pressed, only the LED corresponding to a pressed key lights.
● To release this mode, press the POWER button on the unit or remote control.
I BUITON I
DISPLAY I
CENTER UP SURROUND 1
CENTER DOWN 3-CH LOGIC
SURROUND UP
Standby
SURROUND DOWN
SURROUND 2
SURROUND MODE
LD (AV3)
CENTER MODE
VIDEO (AV2)
SOURCE
TV (AV1 )
MASTER VOL UP
DOLBY PRO LOGIC
MASTER VOL DOWN LINE
TABLE 1: Corresponding buttons and displays in the button checking mode
.,
.-.
,,”
2.
Checking the connection of the connectors
To
enter the port connection service mode, connect the 14.7 kohms resistor to the pin 38 and ground to earth, then’ restart. The
NORMAL and WIDE LEDs light. If failed, the indications listed below are displayed on the VOLUME LEDs section. If the pott connection
service mode is OK (all of the VOLUME LEDS lights), the unit enters the key service mode by pressing the POWER button on the
remote control. The 14.7 kohms resistor must be disconnected until pressing the POWER button on the remote control.
To release this mode; turn the power off.
PIN
PORT NAME Uo DIODE
RESISTOR
DISPLAY
REMARKS
62
P12 A.MUTE OUT A
00101
63 P13
F_MUTE
OUT
A
01001
54
PEO PWR_lN IN
00001
Reverse input
45
PA7 PWR_RY OUT
A
00110
60 Plo
C_MUTE
OUT A
01010
61
Pll
S_MUTE
OUT A
01101
50
PB4 SUR_CE IN
D
00010
46
PBO FC OUT A
00111
53 PB7 CLK OUT A
01011
47
PB 1 FB IN
D
00011
52 PB6 DATA
OUT A
01000
48
PB2
FA OUT A
11000
51
PB5
VOL_CE IN
D
00100
All
are OK
00000
The indication “A”in the DIODE section means that the output pori side is the anode side.
The indication “D” in the RESISTOR section, means that the pull down resistor is used.
TABLE 2: Checking of the connection of connectors
NOTE: Example display when failing to enter the port connection service mode
As the most lower LED of the VOLUME LEDs is assigned to bit O,the next lower LED is assigned to bit 1, the third lower LED
is.<ssigned to bit 2 and the fourth lower LED is assigned to bit 3, the corresponding numeral is displayed.
~4DlSPLAY NO.
VOLUME LEDS SECTION
00001
Only the most lower LED lights.
00101
The most lower LED and the third lower LED light.
..
-3-
EXPLODED VIEW (CABINET & CHASSIS)
/\
‘Y “k-
2“
PARTS LIST
PRODUCT SAFETV NOTICE
Each precaution in this manual should be followed during sewicing. Components identified with the IEC symbol A inthe parts list
and the schematic diagram designated components in which safety can be of special significance. When replacing a component
identified by A, use only the replacement pans designated, or parta with the same ratings of resistance, wattage or voltage that are
designated in the parls list in this manual. Leakage-current or resistance measurements must be made to determine that exposed
parts are acceptably insulated from the supply circuit before
returning the product to the customer.
CAUTION: Regular type resistors and capacitors are not fiited. To know those values, refer to the schematic diagram.
Regular type resistors are less than 1/4 W cation type and O ohm chip resistors.
Regular type capacitors are less than 50 V and less than 1000 IIF type of Ceramic type and Electrical type.
N.S.P: Not available as service parts.
PACKING & ACCESSORIES
FRONT P.W.BOARD ASSY
Rsf. No.
Parts No.
645 011 9095
614 284 5172
614 284 5189
645 011 9736
614 286 4647
614 286 4517
614 286 2902
614 286 2919
645 009 9502
614 262 4012
645 014 5575
645 01S 9302
645 005 7007
614 265 0107
CABINET & CHASSIS
Rsf. No. Parts No.
1
614 266 4326
2 614 283 2554
3 6t 4 263 2466
4
614 283 2493
5
614 263 2509
6
614 286 4269
7
614 272 2662
8
614 275 2234
9 614 129 1901
10
614 249 2352
. a>
FIXING PARTS
Ref. No. Parts No.
Y1 411 021 6603
Y2 4t t 021 3503
Y3 411 021 6405
Y4
411 020 9902
Y5
411 021 6405
Y6
411 001 3905
Y7 411 021 6405
Y8 411 021 6405
Y9 411 021 6405
Yto
411 021 6405
Yll 411 020 8905
Y12
411 021 3503
Y13 411 021 3503
ELECTRICAL PARTS
Ref. No.
Parts No.
51
A 614 256 5265
52 645 020 1523
53
A 423 016 9603
54
A 423 016 9605
55
614 285 7533
- A 645 020 6683
z
A 614 2S3 3476
“’\.J
Description
Ref. No.
Parts No.
POLY SHEET-950X300 NC, SET
71
CUSHION TOP
❑R404
CUSHION BOTTOM
BR401
POLY BAG-250X350 NC, INST
BR402
OWNERS MANUAL
CN430
CARTON CASE
04300
ASSY,BOX,SPEAKER (SX-CE450)
D4301
ASSY,BOX,SPEAKER (SX-SR450)
04302
SCREW, SPEAKER, HANG
or
CORD, RCA
D4303
CABLE,VIDEO
or
REMOTE CONTROL, R8-t+747(F)rXE.SH D4304
BAITERY LID, REMOTE CONTROL or
ASSY,WIRE, SYSTEM CONTROL
D4305
or
D4307
Description
D4306
ASSY,PANEL,FRONT
DEC,WINOOW, DISPLAY
BUtiON, VR
BuTTON, FUNCTION
BUTTON, POWER
ASSY,CABINET,BOT70M
CABINET
MOUNTING,PCB, PWB FIX
FIXER, AC CORD --
BRACKET-E, HEATSINK PWB
.. . .
.’
Dascrlption
SCR S-TPG BIN 3x8, CABINET
SCR S-TPG BIN 3X1 O.FRONT,PWB
SCR S-TPG BIN 3X6, FRONT, BOITOM
SCR S-TPG BRZ+FLG 3X6
SCR S-TPG BIN 3X8. PCB,BO~OM
SCR S-TPG BIN 4X6, TRANS
SCR S-TPG BIN 3X8, RCAJRGB SOCKET
SCR S-TPG BIN 3X6, SPEAKER SOCKET
SCR S-TPG BIN 3X8, BRACK~,HEATSINK
SCR S-TPG BIN 3X8, BRACKET,PWB
SCR S-TPG BRZ+FLG 3X1O, POWER IC
SCR S-TPG BIN 3X1O, 3-REG IC
SCR S.TPG BIN 3X1 O, STOPPER
Description
POWER CORD
FLEXIBLE FLAT CABLE
FUSE
250V 0.63A
FuSE
250V 0.4A
HEAT SINK
TRANS,POWER
PwB.PT.1
-4-
. .
D4309
04310
D4311
D4312
D4313
D4314
D4315
D4316
D4317
04318
04319
D4320
04321
04322
D4323
D4324
D43Z5
04326
04327
D432s
IC430
L4341
04301
or
or
or
or
or
04302
or
or
or
or
or
Q4303
or
5-
614 263 3155
614 2S3 2565
614 263 2592
614 263 8099
645 012 5506
407 099 5402
407 099 5402
407 007 9904
407 012 4406
407 007 9904
407 012 4406
407 007 9904
407 012 4406
407 007 9904
407 012 4406
407 065 5009
407 173 8305
407 173 8305
407 173 8305
407 173 8305
407 173 8305
407 173 8305
407 173 6305
407 173 8305
407 173 8305
407 173 6305
407 173 6305
407 109 4104
407 109 4104
407 109 4104
407 109 4104
407 109 4104
407 109 4104
407 109 4104
407 109 4104
407 109 4104
407 109 4104
x 410 265 8602
645 001 55t9
405 004 4601
405 003 5401
405 006 1905
405 006 1806
405 002 1305
405 002 1107
405 004 4601
405 003 5401
405 006 1905
405 006 1e06
405 002 1305
405 002 1107
405 019 3903
405 017 9709
Description
ASSY,PWB,FRONT
HOLDER,LED
HOLDER,LED
HOLDER,LED
SOCKET,FPC 17P,MAIN
ZENER DIODE MTZJ6.2B
ZENER DIODE WfZJ6.2B
DIODE GMAOI
DIODE 1SS133
DIODE GMAO1
DIODE 1SS133
DIODE GMAO1
DIODE 1SS1S. ~
DIODE GMAO1 - = :
DIODE tSS133
LED SLP-190B-5i “ .>
LEO SLP-335C-51
LED SLP-235C-51
LED SLP-335C-51
LED SLP-335C-51
LED SLP-335C-51 .
LED SLP-335C-51
LED SLP-33.5C-51
LED SLP435C-51
LEO SLP-335C-51 - .“
LED SLP-335C-51
LED SLP-335C-51
LED SLP-161C-51-B :
LED SLP-181C-51-B
I
LED SLP-181C-51 -B
LED SLP-181C-51-B :
LED SLp-161 C-51 -B
LED SLP-161 C-51 -B
LED SLP-161C-51-B
LED SLP-lelC-51-B
LED SLP-161C-51-B
LED SLP-ISIC-51 -B
Ic CXPS441 2-1030
INDUCTOR.47U K
TR 2SA608-F-SPA
TR 2SA1317-U
TR 2SA933S-S
TR 2SA933S-R
TR2SA1048.Y
TR 2SAI 046-GR
TR 2SA606-F-SPA
TR 2SA1317-U
TR 2SA933S-S
TR 2SA933S-R
TR 2SAI04S-Y
TR 2SAI048-GR
TR 2SC536-G-SPA
TR 2SC3330-U
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PARTS LIST / IC BLOCK DIAGRAM
Ref. No.
Parts No.
Description
or
405 021 0600 TR2SD1012-G-SPA
Q4851
405 033 6805 TR2SD1468S-S
or
405 021 0600 TR2SD1012-G-SPA
IC402, IC451 , IC453, IC455, IC603, IC604 NJ M4558L
(Operation Amplifier)
R4960 A 401 058 2501 OXIDE-MT
100JA lW
r I
POWER TRANSFORMER P.W.BOARD ASSY
@d
VOUT 1 1
8 VCC
Ref. No.
Parts No.
Description
74
614 283 3162 ASSY,PWB,PT.2
-+
CN497
614 020 1246 SOCKET,5P,MAIN
CN498
614 285 0114 ASSY,WIRE, TO MAIN VH5P
VIN+l
2
7
VOUT2
FPC03
645 006 4760 HOLDER,FUSE
FPC04
645 006 4760 HOLDER,FUSE
+-
L4970 ~ 614 229 0422 IN DUCTOR,FERITE
W R497
614 017 8203 TERMINAL BOARD
vlN-1 3
6 vlN-2
WR498
614 017 8203 TERMINAL BOARD
REGULATOR P.W.BOARD ASSY
Ref. No.
Parts No.
75
614 286 4821
CN494
614 020 6562
or
614 223 9216
D4940
407 099 6409
PR494 z% 645 013 7075
Q4940 ~ 405 095 1602
or
A 405 095 1701
I I I
Description
ASSY,PWB,REG
SOCKET,4P,MAIN
SOCKET,4P,MAIN
ZENER DIODE MTZJ1 lB
PROTECTOR,0.5A 125V
IC450 HA1 18104 (Switch for VCR)
TR 2SD2061-E
TR 2SD2061-F
3S
3CONT 3A _ GND 20UT Vref .20UT 2CONT
......-. .. . ... ... . . ... .. .
REGULATOR +61 P.W.BOARD “ASHY .;...-..-. ..-.-u.,:-: ..:.:.
Ref. No.
Parts No.
-
Description
.. ,.
.
76
614 286 4838 ASSY,PWB,REG+B1 . .:.
CN495
614 020 6555 SOCKET,3P,MAIN
. .
or
614 223 9216 S0CKET,3p,~A1~ -.;,
Q4950 ~ 405 053 0906 TR 2SD1668-Q -
. .. . . . . . . .
or
~
405 022 77o7 TR 2SD16Q8-R _- . ~~ .- _ ---- ‘ ~- .
or
~
405 022 7806 TR 2SD1668-- .“. ~
,-, . .. . . . . . .. .
REGULATOR +62 P.W.BOAR,D ‘ASSY
-,.-. :. .
Ref. No.
Parts No.
Description “- , ““
77
614 286 4845 ASSY,PWB,REG+B2
Q4955 ~ 405 053 0906 TR 2SD1 668-Q -
or
~
405 022 7707 TR 2SD1668-R
or
A
405 022 7806 TR 2SD1668-S
I
. . . . .. -- -- ...
..— .- ..-. ,,
I
. . . . . . . .
30UT NC 1A
lCONT lB V= 2A
=sJ” -
-.
IC452, IC454TC9213P (Electric Volume) ‘- -
1 I
I
OUT1
OUT1 -
IN1
IN1
L-CH-
—R-CH
A-GN13
A-GND
OUT2
OUT2
IN2
IN2
GNO
STB
-8-
. . .
IC BLOCK DIAGRAM
.. .
,-:.
‘, ... . ..
IC401 BU4052BC (Dual 2-input 4-ch Analog Multiplexer/De-Multiplexer)
X CHANNELS lt4KXJT
/32101
(a Voo
~
1
B COMMON
OUT/lN
A@=
BINARY
TO
B* ~og;gloN
10F4
OECODER
WmH
‘NH @----
INHIBIT
I
I
.0123z
\ /
Y CHANNELS lN/Oi.rr
IC430 CXP84412-103Q (Micro Processor)
x
Y
OY 1
2Y 2
Y.
COMMON
3
3Y 4
lY 5
INH 6
VEE 7
u
-16
-15
-14
-13
-12
-11
I
-lo
-
9
VDO
2x
lx
tOMMON
ox
3x
A.
B
,.
.“-
No.
Name 1/0
Description
1 PF3 o Not used
2 PF4 0. Not used
3
PF5
o Not used
4 PF6 o Not used
, ,
li-
5 PF7
I
0 I Not used
6 VOL LED5 O i Volume LED
[Max MH=Active) 1
No.
I Name 1/0
Description
41 ] PA3
o Not used :“’.s$ !’; :3 -L>.., ;tP:- . j? ?J.’-%.%
42 ] PA4
o Not used
. .. -., .. ?
43 I PA5
o
Notueed , -, --- s ~
44 SP.RY o
Speaker relay
,... -
,,. ,
45 PW.R’f
o
Power relay - . .:
46 FUNCT.C
o
Function select
12 PD6 o Not used
13 PD7 o Not used
14 PRO LOGIC
o LED
(L=Active)
15 3CH LOGIC
o LED
(L=Active)
~
O VIDEO function LED (L=Active)
J
21 LINE o LINE function LED (L=Active)
22 NORMAL o Normal LED
(H=Active)
23 WIDE o Wide LED
(H=Active)
24 PHANTOM o Phantom LED
(H=Active)
25 STANDBY o Standby LED
(L=Active)
26 PH4
o Not used
27 PH5 o Not used
28 PH6 o Not used
, ,
29 I PH7
I
O I Not used
30 I RESET I Reset inout
31 EXTAL
Clock Generator
32 XTAL Clock Generator
33 Vss Ground
34 TX Not used
35 TEX Not used
36 AVSS A/D converter
37
AVREF ‘-
A/D converter for standerd voltage input
38 KEY. O I Key input
39 KEY. 1 I Key input
40 V-CHK
I Detect for stoppage failure of electricity
-.
47 I FUNCT.B
o
Function select “”
48 ] FUNCT.A
o
Function select -
49 PB3
o
Not used
50 SUR.CE
o
Surround IC chip enable control . ‘ “ “.
51
VO.CE
o
Volume IC
chip enable control
52 DATA o
Data
53 CLK o
Clock
54 POWER IN
I
Power input
55 Pw.sw
I Power switch input
56 IR
I Remote control signal
57 FUNCTION.SEL
I
Function select (L=TV, H=LINE)
58 PE4 o
Not used
!
59 I PE5
o
Not used
60 j C.MUTE o
Center Muting
(H=Active)
61 i S.MUTE
o
Surround Mutino (H=Acfive)
,
,
.
62 I A.MUTE
I
o
I -20dB Muting
iH=Activej
63 I F.MUTE
O I Front L. R Mutina
(H=Active)
I
64 ] P14 o
Not used
65 IP15 o
Not used
66 1P16
o
Not used
,
67 P17 o
Not used
68 PGO
o
Not used
69 PG1 0
Not used
70 PG2 o
Not used
71 I PG3 I o
I Not used I
I
.----
1
I
..-. ----
72 I VDD
i
I Power Sucmlv
I
i73i NC I
[ Non connection I
\
a
-.
74 PG4 o
Not used
75 PG5 o
Not used
76 PG6 o
Not used
77 PG7 o
Not used
4
76 PFO o
Not used
79 PF1
o
Not used
60 PF2
o
Not used
f
:: ..:
.
..’
.,”.
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.
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II
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y
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[
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. ~
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m
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n
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N
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,
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—.. —.. — ..—.. —.. — ..—.. —.. — -.—.. —
34
I J-J I
L
I
I
I
I
A
to
.“
.-
.1 l—
—..— ..—. .—. .— ..—. .—. .— ..—. ...
I III
—.. —.. — ..—.. — ..—.. — ..—.. — ..__._:
119
—..— .
iii
I
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1
J
I 1
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r-
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,,.
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,,
.-
JOQ
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I
I
-1
,,.,,,.
\
CN430
I
!
Lm.co--+,, vi),.,,
,.”4,, m,, >,.
1
qi?
51 !.30
5 4=-1
23
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I
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15
0. GND
tl
+5. 6V
Ic430 CXP84412
ill~
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L.!. -.
R!=sF w
1’1 I II
m
m
H
%
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04316
xi
c...
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04318
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k
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“b This Isa basic schematic diagram.
.,,,
,’
-u
:
g
-.
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FROM MAIN PWB
b
:
(CN403)
.
/
