Sanyo CE42LM4WPR-E User manual

Part No. 1KA6P2P0002-- N4JK OCTOBER 2006 Reference No. SM1110002-00

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

Mechanical Disassembly ..........................................................................................................................9~12

Block Diagram ..............................................................................................................................................13

Power Diagram ............................................................................................................................................14

Power and Control Diagram ........................................................................................................................15

RS232 Settings ......................................................................................................................................16~17

Troubleshooting ............................................................................................................................................18

IC Descriptions........................................................................................................................................19~20

IC Block Diagrams........................................................................................................................................................................21~22

Cabinet Parts List ........................................................................................................................................28

Pin description of semiconductors................................................................................................................29

Electric Parts List ..........................................................................................................................................30

Model CE42LM4WPR-E

Service Ref. No. CE42LM4WPR-E-00

PRODUCT CODE: 113003909

ORIGINAL VERSION:

Chassis No.UK4-B

Please use Schematic Diagram 1KA6P2P0005--

inserted with this Service Manual.

CE42LM4WPR-E

FILE NO.

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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 800:1

Display Resolution 1366 x 768 (WXGA)

Viewing Angles H: 178°, V: 178°

Dimensions (WxHxD) 1050 x 654 x 162

Weight 39.5 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 .

!



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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 07.45

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.

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SERVICE DATA

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SERVICE DATA (contd.1)

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SERVICE DATA (contd.2)

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SERVICE DATA (contd.3)

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HDMI / PC / COMPONENT SIGNAL SUPPORT TIMING LIST

Resolution

Horizontal

Frequency

(kHz)

Vertical

Frequency

(Hz)

Remark

720_400 31.47 70.09 DOS(VGA )

640_480 31.50 60.00 DOS(VGA VESA 60Hz)

640_480 37.50 75.00 VGA VESA 75Hz

640_480 37.86 72.81 VGA VESA 70Hz

640_480 37.86 74.38 VGA

640_480 35.00 67.00 Mac.

640_480 34.97 66.60 Mac LC 13"

800_600 35.16 56.25 SVGA VESA 56Hz

800_600 37.90 60.32 SVGA VESA 60Hz

800_600 46.90 75.00 SVGA VESA 75Hz

800_600 32.70 51.09 SVGA

800_600 34.50 55.38 SVGA

800_600 37.90 61.03 SVGA

800_600 38.00 60.51 SVGA

800_600 38.60 60.31 SVGA

832_624 49.00 74.00 Mac.

1024_768 48.40 60.00 XGA V ESA 60Hz

1024_768 56.50 70.00 XGA V ESA 70Hz

1024_768 60.000 75.00 XGA VESA 75Hz

1024_768 44.00 54.58 XGA

1024_768 46.90 58.20 XGA

1024_768 47.00 58.30 XGA

1024_768 48.50 60.02 XGA

1024_768 58.03 72.00 XGA

1024_768 60.31 74.92 XGA

1024_768 61.00 75.70 XGA

1024_768 60.24 75.08 MAC_Normal 19"

1280_960 60.00 60.00 SXGA VESA 60Hz

1280_1024 79.976 75.025 SXGA VESA 75Hz

1280_1024 62.50 58.60 SXGA

1280_1024 63.370 60.01 SXGA

1280_1024 63.34 59.98 SXGA

1280_1024 63.74 60.01 SXGA

1280_1024 63.79 60.18 SXGA

1280_1024 63.90 60.00 SXGA

1280_1024 71.69 67.19 SXGA

1280_1024 76.97 72.00 SXGA

1280_1024 81.13 76.107 SXGA

1152_864 64.20 70.40 SXGA

1152_900 61.20 65.20 SXGA

1152_900 61.85 66.00 SXGA

1152_900 71.40 75.60 SXGA

1152_870 68.68 75.06 MAC_Normal 21"

1280_960 75.00 75.08 Mac.

1280_1024 80.00 75.00 Mac_.

1600_1200 75.00 60.00 UXGA VESA 60Hz

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

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Mechanical Disassemblies (CE42LM4WPR-E)

1. Check points before disassembly

Check the location of tamper proof marking (Fig-1)

If the marks are removed or touched, somebody may have already disassembled the set.

This makes the warranty regarding this IP model invalid.

After finishing the service, make the set tamper proof again with silver paint.

2. Rear Plate Removal

Remove screws A (6 pcs), then remove the Terminal Cover (Fig-2)

Remove screws B (4 pcs), then remove the AV Terminal (Fig-3)

Remove screws D (20 pcs) - (Fig-6)

Remove screw C (Fig-5), then remove the Rear Plate.

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Mechanical Disassembly contd.

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Mechanical Disassembly contd.

Location if Circuit Board and Electric Parts

Note: Control Board is fixed on Cabinet Front.

3. Chassis and Fan Removal

Screw A : M3 x 6

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4. Cabinet Back Removal

(1) Remove the lead wire of the Control Board from the Main Board.

(2) Remove the lead wire of the inverter from the Power Board / Main Board.

(3) Remove the LVDS cable from the LCD Panel.

(4) Remove cables from the Inverter area or Power and Main Board

(5) Remove screw A (20 pcs).

(6) Remove the Cabinet Back.

Mechanical Disassembly contd.

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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

SWITCH

BA7657

MATRIX

COMPONENT

YPBPR

RGB

H/V

Y/G

Pb/B

H/V

Pr/R

H

V

OUT IN

OUT

IN

Outline

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1

2

3

4

5

6

KQ

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

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Power and Control Diagram

PJ-NET

POWER

CONNECTOR

MAIN

SUB-AV-BNC

SUB-AV SOCKET

1KA9W0640017-

K2009

TX

RX

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

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

Gnd

K3001

NC

1

11

1

6

POWER_3

BL_ADJ

BL_ON

3.3V S/B

KP

R1600

R1601

gnd

1AA0B10H086JA

1AA0B10H087D0

1AA0B10H086JB1AA0B10H086G0

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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 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

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

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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

RS232C Command Tables

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TROUBLE SHOOTING

Item

Condition Check point

1

2

3

4

5

6

7

8

9

No power

No backlight

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

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

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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.

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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 manufac-

turer, 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)

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Sanyo CE42LM4WPR-E User manual

Sanyo CE42LM4WPR-E User manual

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