Sanyo 30CA1Z, LCD-27CA1, LCD-30CA1Z Schematic

SERVICE MANUAL LCD Television

N2LVZ

FILE NO.

Model No. LCD-30CA1Z

(Asia / Middle East / Australia)

Give complete “SERVICE REF. NO.” for parts order or servicing. It is shown on the rating label at the cabinet back of the unit.

This T.V. receiver will not work properly in foreign countries where the television transmission system and power source differ from the design specifications. Refer to the specification table.

Product Code:111374016

REFERENCE NO. SM5110697

Original Version

Chassis Series: UB5-C

Service Ref. No. LCD-30CA1Z-00

Contents

Safety Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Chassis Block Diagram . . . . . . . . . . . . . . . . . . . . . . 4-5

Power Supply Lines . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Sub CPU Port Functions . . . . . . . . . . . . . . . . . . . . 9-10

Service Adjustments . . . . . . . . . . . . . . . . . . . . . . . 11-12

Option Setting (Dealer Mode) . . . . . . . . . . . . . . . . 13-14

Service Adjustments Menu . . . . . . . . . . . . . . . . . . 15-16

Protection Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Mechanical Disassembly . . . . . . . . . . . . . . . . . . . 18-23

Cabinet Parts List . . . . . . . . . . . . . . . . . . . . . . . . . 24-25

Chassis Electrical Parts List . . . . . . . . . . . . . . . . . .26-48

Printed Circuit Board . . . . . . . . . . . . . . . . . . . . . . .49-55

AV2

AV3

AV4

AV1

ECO

P P

VOLUME

CHANNEL

BACK

C.SYS

S.SYS

WIDE

AUDIO-S

VIDEO-S

STILL

SURROUND

BASS

JXPPB

Safety Notice

-2-

Safety Precautions

The following precautions must be observed.

1: Comply with all caution and safety-related notes provided on the cabinet back, cabinet bottom, inside the

cabinet or on the chassis.

2: When replacing a chassis in the cabinet, always be certain that all the protective devices are installed

properly, such as, control knobs, adjustment covers or shields, barriers, etc..

DO NOT OPERATE THIS TELEVISION WITHOUT THE PROTECTIVE SHIELD IN POSITION AND PROPERLY SECURED.

3: Before replacing the cabinet cover, thoroughly inspect the inside of the cabinet to see that no stray parts or

tools have been left inside.

Before returning any television to the customer, the service personnel must be sure that it is completely safe to operate without danger of electrical shock.

Product Safety Notice

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 .

[ Details of Dimensions ]

(Unit of length=cm)

76.5

64.6

25.1

57.1

38.8

10.3 13.2

10.8

62.2

39.7

23.5

Specifications

-3-

Power Source AC100-245 Volts, 50/60Hz

Power Management VESA DPMS

Plug & Play VESA DDC1/2B

PC Interface D-SUB 15 pins, XGA, VGA, SVGA

Colour System PAL/SECAM/NTSC4.43/NTSC3.58

Sound System B/G, D/K,K’, I, M/M

Channel Coverage

VHF: E2-E12, A2-A13, R1-R12, J1-J12, K1-K9 UHF: 21-69, A14-A69, J13-J62 CATV: S1 - S41, X, Y, Z, Z+1, Z+2

Aerial Input Impedance 75 Ω

Audio Output (RMS) 5W+5W

Speakers 6 cm x 12 cm x 2 pcs.

LCD Panel

Screen Size (Measured Diagonally): 30 inch (762 mm) Picture Resolution: WXGA 1280 (Horiz.) x 768 (Vert.) pixels Viewing Angles: Horiz. 170˚, Vert. 170˚ Contrast Ratio: 600:1 Brightness: 550cd/m

Input Terminals

• PC Input: D-SUB 15-pins x 1 (Analog RGB input) , Audio input (Mini stereo Jack x 1)

• AV1 (Video): Composite Video Input (Phone Jack) x 1

S-Video Input (Separated Y/C) DIN 4-pin Jack x 1

• AV1 (Audio): L/R Stereo Input (Phone Jack) x 1 set

• AV2 (Video): Composite Video Input (Phone Jack) x 1

S-Video Input (Separated Y/C) DIN 4-pin Jack x 1

• AV2 (Audio): L/R Stereo Input (Phone Jack) x 1 set

• AV3 (Video): Component Y, C

B/PB, CR/PR Input (Phone Jack) x 1 set

• AV3 (Audio): L/R Stereo Input (Phone Jack) x 1 set

• AV4 (Video): Component Y, C

B/PB, CR/PR Input (Phone Jack) x 1 set

• AV4 (Audio): L/R Stereo Input (Phone Jack) x 1 set

Output Terminals

• Video Monitor Output: Phone Jack x 1

• Audio Monitor Output: L/R Stereo Output (Phone Jack) x 1 set

• Headphone: Mini Stereo Jack x 1

Dimension 765 (W) x 622 (H) x 235 (D) mm (Included swivel stand)

Weight approx. 22 Kg (Included swivel stand)

Specifications subject to change without notice.

-4-

Chassis Block Diagrams

(Video Signal Lines)

LCD PANEL

IC7191

Y/C SW

6(Y)

3(C)

9(Y)

1(C)

IC7101

FOR NTSC SIGNAL

3D Y/C SEPARATION

LVDS

IC7002

8(Y)

84(Y)

DRIVER

16(C)

83(C)

IC7001

COLOR

6(Y)

4(C)

2(V)

IC7171 MIX

K42G

MANAGEMENT

IC7603

DIGITAL RGB PROCESSER

IC2201

DIGTAL VIDEO DECODER

IC3001

(2-9) YA

73(Y)

71(C)

, C

DEC_Y

SCAN

MAIN CPU

CONVERTER

CBA (2-9)

(Cr, Cb)

6(Cr)

Y, C r, C b

Q1151 (Cr)

5(Y)

4(Cb)

Q1152 (Y)

Q1153 (Cb)

IC1701

VIDEO SW

7(R)

)

9(G

A/D

IC4001

11(B)

CRA (2-9

CBA (2-9)

)

54(Cr/R

48(Y/G

Y, C r,Cb /

)

21(Cr/R

19(Y/G

YA (2-9)

)

43(Cb/B

)

15(Cb/B

3(Y)

5(Cb)

, Cr, Cb Y

1(Cr)

MAIN UNIT

K8G

Y, C

56(Y)

58(C)

IC1201

15(V)

17(Y)

AV SELECTOR

V, Y, C

SUB UNIT

K8F

K13F

JACK-B UNIT

AV2 INPUT

K42G

19(C)

TV_V

63(V)

TV_V

U/V TUNER (A202)

K42G

K8G

53(V)

K8G

IC1206

8(V)

10(Y)

12(C)

V, Y, C

K8E

K10E

AV1 INPUT

JACK-A UNIT

4(V)

VIDEO SW

6(V)

(AV)_V

41(V)

2(V)

V P_

K8E

MONITOR OUT

K10E

PC_R

D-SUB

IC1011

COMPONENT SW

K11C

K10C

35(Y)

33(Cr)

, Cr

Y, C b

AV3 INPUT

Q1162 (Y)

Q1161 (Cr)

27(Y)

25(Cr)

34(Cb)

K11C

K10C

Q1163(Cb)

26(Cb)

43(Y)

41(Cr)

42(Cb)

Y, Cb, Cr

K11C

K10C

AV4 INPUT

-5-

Chassis Block Diagrams

(Audio Signal Lines)

IC101

AUDIO MAIN AMP.

SP901

KSP9L

L-OUT

15 (-)

16 (+)

27(R)

28(L)

HEADPHONE L/R

SP902

KSP9R

R-OUT

24 (+)

25 (-)

IC002

PRE-AMP.

R-O

L-O

R-OUT

L-O

U/V TUNER (A202)

SIF

IC001

SOUND CONTROL

NICAM/A2 STEREO

HEADPHONE L/R

SUB UNIT

K8D

IC1201

K13D

AV SELECTOR

16 (L)

L/R

18 (R)

K8F

K13F

L/R

9 (L)

11(R)

K8E

K10E

L/R

43 (L)

45 (R)

K8E

K10E

L/R

59 (L)

61 (R)

K8E

K10E

22 (L)

L/R

25 (R)

K8E

K10E

L/R

29 (L)

31 (R)

K8E

K10E

ED-L

TV-L

TV-R

ED-R

SELECT

JACK

HEADPHONE

JACK-B UNIT

AV2 INPUT

AV1 INPUT

JACK-A UNIT

MONITOR OUT

AV3 INPUT

AV4 INPUT

Power Supply Lines

-6-

FN901

KFN1

Q1854

FAN_LOCK1

IC801

ON: H, OFF: L

FN903

KFN3

Q1871

FAN

LOCK1

SUB CPU

Q803/804

PF-2

FAN_LOCK2

FAN

LOCK2

LCD

ON/OFF

D1654D1657

D1602

IC101

AUDIO AMP.

T-SENSOR

Powr Fail-1

Powr Fail-2

Q801/802

PF-1

D261

5V_Analog

IC1651/Q1651

IC261

D1601

Audio AMP. Fail

5V_ST_SAVE

Q807

PF-5

TH1601

Te mperature Sensor

50-58

T-SENSOR

43,44 48-50

3.3V_ST_SAVE

Q808

K8J

K8E

K8G

K19J

K10E

1-3

K42G

7,8

5V_Standby

5V_ST

PF-1

3.3V_Standby

A1902

D3192

D3191

D2263

D1171

5V_V_SW

D2262

IC1172

D2261

RC PRE-AMP.

IC1002

IC1003

3.3V_PIX

D4106

-5V

JACK-A UNIT

CONTROL UNIT

3.3V_AP

D3102

D3101

1.5V PIX

1.5V PIX P

-5V_A/D2

-5V_A/D

DDC

IC1001

IC3191

IC3190

IC4110

K10C

5V_DPMS

3.3V_VPL

IC3194

IC3192

2.5V_PIX

IC8961

3.3V_Y/C

K11C

3.3V_LVD

IC3193

2.5V_VPL

5V_DPMS

Q6811

5V_Standby

D3197

D3196

D3193

D8961

Q6801

D3198

D3195

D3194

D8962

PWR ON

SUB UNIT

K16V

Line Filter

Fuse F601

FILTER UNIT

Input

KAC2

F601/602

12V_Audio 32V_Tuner

AC 100-245V

CN61

9V_Analog

K16A

CN69

5V_Standby

CN71

3.3V_Standby

K16P

CN60

POWER UNIT

CN3

LCD PANEL

MAIN UNIT

K7L

26-30

IC2204

5V_DEC

IC2206

5V_A/D

3.3V_DEC

5V_LVDS

IC4181

IC4106

9V_Analog

5V_Digital

6-8

2,3

K69H CN62

IC8962

2.5V_VGR

3.3V_A/D

IC5104

D8963

D8964

D4101

D4102

IC5105

1.8V_MTR

3.3V_MTR

D5102

D5101

Power Supply Lines

-7-

IC’s Power Supply Lines (Main Unit)

5V_Digital

9V_Analog

IC8971

SYNC. SEP.

3.3V_MTR

3.3V_PIX

3.3V_AP

2.5V_PIX

3.3V_Y/C

2.5V_VGR

3.3V_A/D

3.3V_LVD

2.5V_VPL

3.3V_VPL

IC7171

Y/C MIX

5V_DEC

1.8V_MTR

3.3V_DEC

IC7603

RGB

MATRIX

IC7601 IC7602

MEMORY

IC8001

CPU

MAIN CPU

EXTENSION

IC8902 RESET

3D Y/CSEP.

IC7002

LVDS DRIVER

IC7001

COLOR MANAGEMENT

IC2201

VIDEO

DECODER

IC7191

Y/C SW

IC3001

IC7101

IC5102

IC3102 RESET

IC2203

IC310416IC3171

IC4001

A/D CONVERT

D1105

D1110

D1115

IC1771 IC1772

IC3151

IC1101

COMPONENT

VIDEO SW

IC1773

4,16

IC3152

IC3153

CLOCK

OSC.

IC8406

CONVERT

5V_ST

3.3V_ST

5V_V_SW

5V_A/D

-5V_A/D

-5V_A/D2

5V_DPMS

5V_Standby

3.3V_Standby

IC4102

IC4103

IC4104

IC3103

IC1707

MEMORY

D1702

IC3141

FLASH

IC1702

SYNC SEP.

D1701

IC3142

SRAM

IC1701

VIDEO

11, 33

IC1703 IC1704

IC8402

D/D

CONVERT

IC8403

D/D

CONVERT

IC8401

Power Supply Lines

-8-

IC’s Power Supply Lines (Sub Unit)

12V_Audio

9V_Analog

5V_Standby

32V_Tuner

5V_Analog

5V_ST_SAVE

IC1851

CONTROL

IC101

AUDIO AMP.

TUNER

IC002

AUDIO

PRE-AMP.

IC801

SUB CPU

FAN

A202

16,62,99

IC802

RESET

NICAM/A2

DECODER

D1201

IC803

IC001

IC003

IC1201

AV SELECTOR

IC1206

VIDEO SW

IC804

EEPROM

-9-

Sub CPU (IC801) Port Functions

Pin Name Function Name Description I/O

No.

1 P96/ANEX1/SOUT4 BSD_OUT Serial output Out 2 P95/ANXO/CLK4 BSD_CLK Serial clock In 3 P94/DA1/TB4IN FAN-CTRL1 Fan control-1 (D/A data) Out 4 P93/DA0/TB3IN FAN-CTRL2 Fan control-2 (D/A data) Out 5 P92/TB2IN/SOUT3 - Not used (Output= Low) 6 P91/TB1IN/SIN3 Hsync Horiz. sync. input In 7 P90/TB0IN/CLK3 - Not used (Open) 8 BYTE

- External Pulldown (10K ohms)

9 CNVss CNVSS CNVSS (Rewriting of a flash. Rewrite=High) In 10 P87/XCIN - Not used (Open) 11 P86/XCOUT - Not used (Open) 12 RESET - IC Reset (Active “Rest”=Low) In 13 XOUT - Oscillator 14 VSS - GND 15 XIN - Oscillator 16 VCC - 5V_STandby 17 P85/NMI - NMI terminal In 18 P84/INT2 RC RC input In 19 P83/INT1 50/60 Detection of 50Hz/60Hz from Pixel (50Hz=Low, 60Hz=High) In 20 P82/INT0 Vsync Vert. sync. input In 21 P81/TA4IN - Not used (Output=Low) 22 P80/TA4OUT - Not used (Output=Low) 23 P77/TA3IN - Not used (Output=Low) 24 P76/TA3OUT - Not used (Output=Low) 25 P75/TA2IN - Not used 26 P74/TA2OUT WF MUTE PWM output (Not used) Out 27 P73/CTS2/RTS2/TA1IN - Not used (Output=Low) 28 P72/CLK2/TA1OUT - Not used (Output=Low) 29

P71/RXD2/SCL/TA0IN/TB5IN

IIC SCL IIC-SCL ( for EEPROM) -

P70/TXD2/SDA/TA0OUT

IIC SDA IIC-SDA ( for EEPROM) 31 P67/TXD1 TXD For writing of a flash (Synchronous serial communication.) 32 P66/RDX1 RXD For writing of a flash (Synchronous serial communication.) 33 P65/CLK1 SCLK For writing of a flash (Synchronous serial communication.) In 34

P64/CTS1/RTS1/CLKS1

BUSY For writing of a flash (Synchronous serial communication.) Out 35 P63/TXD0 UART For pixel communication 36 P62/RXD0 UART For pixel communication 37 P61/CLK0 - Not used (Open) 38 P60/CTS0/RTS0 - Not used (Open) 39 P57/RDY/CLKOUT (LEFT_TURN) Not used (Left turn switch of the TV stand ) Out 40 P56/ALE (RIGHT_TURN) Not used (Right turn switch of the TV stand) Out 41 P55/HOLD EPM EPM input (for writing of a flash) In 42 P54/HLDA COLOUR SW1 Colour system switch from PIXEL In 43 P53/BCLK COLOUR SW2 Colour system switch from PIXEL In 44 P52/RD AUDIO SW1 Audio system switch from PIXEL In 45 P51/WRH/BHE AUDIO SW2 Audio system switch from PIXEL In 46 P50/WRL/WR CE CE input (for writing of a flash) In 47 P47/CS3 JACK MUTE Headphone detection (Headphone Connection=Low) In 48 P46/CS2 -

External Pulldown (10K ohms) In 49 P45/CS1 AMP MUTE2 AMP. mute (Mute on=Low) Out 50 P44/CS0 AMP MUTE1 AMP. mute (Mute on=Low) Out

-10-

Sub CPU (IC801) Port Functions

Pin Name Function Name Description I/O

No.

51 P43/A19 DPMS-SW DPSM On/Off (Off=Low) Out 52 P42/A18 NVM-POWER Power On/Off for Non-volatile memory (Off=Low) Out 53 P41/A17 -

External Pulldown (10K ohms)

54 P40/A16 -

External Pulldown (10K ohms)

In 55 P37/A15 IIC SCL IIC Bus SCL (for U/V tuner) Out 56 P36/A14 IIC SDA IIC Bus SDA (for U/V tuner) In/Out 57 P35/A13 - Not used (Open) 58 P34/A12

Not used (Open) 59 P33/A11 (MONI_MUTE) Not used(Open) (Audio monitor out mute) Out 60 P32/A10 RED Power LED (Red) output (LED off=Low) Out 61 P31/A9 GREEN Power LED (Green) output (LED off=Low) 62 VCC - 5V standby 63 P30/A8 OFF TIMER LED Off timer indicate LED (LED Off=Low) Out 64 Vss - GND 65 P27/A7 - Not used (Open) 66 P26/A6 SAW SW SAW control Out 67 P25/A5 SYSTEM SW1 Audio system switch to tuner Out 68 P24/A4 SYSTEM SW2 Audio system switch to tuner Out 69 P23/A3 PDP/LCD Detection of PDP or LCD (PDP=Low, LCD=High) In 70 P22/A2 TIME BASE TIME BASE from tuner In 71 P21/A1 - Not used 72 P20/A0 RST_PXL Detection of PIXEL RST (PIXEL IC RST=Low) In 73 P17/D15/INT5 (IRQ) Not used (Detection of panel error) In 74 P16/D14/INT4 - Not used (Open) 75 P15/D13/INT3 PWRSW Detection of the main power On/Off (Power on=Low) In 76 P14/D12 WOOFER Detection of Woofer (Without woofer=High) In 77 P13/D11 FAN LOCK1 Unusual stop of a fan-1 (Stop of fan=Low) In 78 P12/D10 SWIVEL Detection of a swivel stand (Without swivel=High) In 79 P11/D9 OPT_TUNER Detection of a tuner maker (SHARP=Low, CHANG HONG=High) In 80 P10/D8 PW_RST PIXEL reset output (Reset off=Low) Out 81 P07/D7 LINEOFF

Detection of the interception signal of a power supply (Line off=Low)

82 P06/D6 P-FAIL1

Detection of the

power failure (2.5V, 3.3V, 5V) Fail.=Low In

83 P05/D5 P-FAIL2

Detection of the

power failure (9V, 12V, 30V) Fail.=Low In

P04/D4

P-FAIL5

Detection of the

power failure of

audio amp. (

Fail.=High) In 85 P03/D3 (CPU_GO) Not used (Power On/Off of CPU) (On=High) Out 86 P02/D2 PDP(LCD)_GO Panel On/Off (On=High) Out 87 P01/D1 - Not used (Open) Out 88 P00/D0 FAN LOCK2 Unusual stop of a fan-2 (Stop of fan=Low) In 89 P107/AN7/K13 (BS_MNT_MUTE) Not used (BS video monitor mute) Out 90 P106/AN6/KL2 AFT INPUT AFT voltage input In 91 P105/AN5/KL1 - Not used (Open) 92 P104AN4/KL0 T-SENSOR1 Temperature sensor-1 93 P103/AN3 (T-SENSOR2) Not used (Temperature sensor-2) 94 P102/AN2 SENSOR The sensor of brightness. 95 P101/AN1 KEY-IN Key input In 96 AVSS - GND 97 P100/AN0 - Not used (Open) 98 VREF -

Connected to Vcc -

99 AVcc - 5V_Standby -

100 P97/ADTRG/SIN4 (SERIAL_INPUT) (Serial input) In

-11-

Service Adjustments

General

This set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the service adjustments.

Exit from the Service Menu

For cancelling service mode, turn OFF the TV set at once with Power ON/OFF key of the remote control or Mains ON/OFF switch of the TV, and turn ON again. The data which is set in the service mode is stored into the memory

IC automatically.

[ Service Mode Display ]

Sub Image

Sub-Cont

PAL 5fh (95)

Main 57

Temp 44

Model 27CA1Z

LCD Time 50hSub 48

CA1

Service Adjustments:

Press ▲ or ▼ button on the remote control hand set to select the desired service menu item you want to adjust.

When the MUTE key is pressed, it will step up the whole service group (For example,Sub Image to Sub Sharpness). When the MENU key is pressed, it will step down the whole service group.

Use or key to adjust the data. or key will increase or decrease the data sequentially.

On-screen Service Menu System

Enter the Service Menu (Note:It is necessary to perform a change in service mode for a short time.)

Item No.

Service Group

Adjustment Item

Setting Index

Adjustment Data

Temperature in the TV set

Type No.

Version of the Main CPU

Total operation time of LCD panel

The derivation number from a basic model

Version of the Sub CPU

RECALL

MUTE

3. Press the MUTE key within 2 seconds, and the Service

Menu now appear.

2. Press the RECALL key of the remote control, then release

the MENU key on the TV, and the RECALL key of the remote control immediately. Perform this operation within 2 seconds.

1. Continue pressing the MENU key on the TV set.

ECO

-12-

Service Adjustments

Important Notice:

Do not attempt to adjust service adjustments not listed below otherwise it may cause loss of performance and for correct operation.

Video Level Adjustment

1. Receive PAL colour bar pattern.

2. Connect a oscilloscope to TPTV on the Sub unit and the ground.

3. Adjust so that a video signal level becomes 1.0V±0.1V using VR202 on the Sub unit.

1.0V±0.1Vp-p

(H)

White 100%

Y Level Adjustment

1. Receive PAL colour bar pattern.

2. Connect a oscilloscope to TPY1 on the Main unit and the ground.

3. Adjust so that the Y-signal level becomes 2.0V±0.1V using VR7101 on the Main unit.

2.0V±0.1Vp-p

(H)

White 100%

White balance Adjustment-2

(Difference adjustment of component video input)

Input Signal: A

V Input (Component signal)

1. Enter the Service Menu.

Adjustment Item:

No. 160 Color Balance-Red No. 161 Color Balance-Green No. 162 Color Balance-Blue

2. Select item of No. 160 Color Balance-Red, No. 161 Color Balance-Green or No. 162 Color Balance-Blue

with ▲ or ▼ key, and adjust a proper white balance

with or key. After adjustment, confirm white balance again by normal picture.

White balance Adjustment-3

(Difference adjustment of component video input)

1. Enter the Service Menu.

Adjustment Item:

No. 166 Color Balance-Red No. 167 Color Balance-Green No. 168 Color Balance-Blue

2. Select item of No. 166 Color Balance-Red, No. 167 Color Balance-Green or No. 168 Color Balance-Blue

with ▲ or ▼ key, and adjust a proper white balance

with or key. After adjustment, confirm white balance again by normal picture.

White balance Adjustment-4

(Difference adjustment of PC input)

Input Signal:

PC Input

1. Enter the Service Menu.

Adjustment Item:

No. 154 Color Balance-Red No. 155 Color Balance-Green No. 156 Color Balance-Blue

2. Select item of No. 154 Color Balance-Red, No. 155 Color Balance-Green or No. 156 Color Balance-Blue

with ▲ or ▼ key, and adjust a proper white balance

with or key. After adjustment, confirm white balance again by normal picture.

White balance Adjustment

[ Setting ]

1. Receive a White Pattern (80%).

2. Set the television to following conditions: Screen Size: FULL Picture Menu: DYNAMIC Dynamic AI: OFF

White balance Adjustment-1

(Basic adjustment of composite video)

Input Signal:

RF Input (Composite signal)

1. Enter the Service Menu.

Adjustment Item:

No. 148 Color Balance-Red No. 149 Color Balance-Green No. 150 Color Balance-Blue

2. Decide the fixed item which is maximum value (Example, let 0x80 of No. 148 Color Balance-Red be maximum value), select item of other 2 colors (Example, No. 149 Color Balance-Green or No. 150 Color Balance-Blue) with ▲ or ▼ key, and adjust a

proper white balance with or key. After adjustment, confirm white balance again by normal picture. Note: Adjusted data is less than the fixed data.

-13-

Option Setting (Dealer Mode)

[ Option Setting Mode ]

Input select lock

Dealer Mode

How to make the Option Setting

Press ▲ or ▼ button on the remote control or the TV set to select the desired option item.

Press or key on the remote control or the TV set to change each option setting.

The data which is set in the Option Setting Mode is stored into the memory automatically.

How to enter the Option Setting Mode

1. Turn the TV set on.

2. Press and hold the MENU key of the TV set, and press the MENU key of the remote control.

3. To e xit from the Option Setting Mode, press the MENU or RECALL key or turn the TV off.

Max. volume OSD Menu System setup RC Volume lock Tuning lock Inhibit lock Start mode select

Yes

Yes Yes

No Yes TV

The following Option Setting can be set up on this TV set.

1. Input select lock (Mode: Yes or No)

Yes: The input (TV, PC, AV1, AV2, AV3 or AV4) of a signal is fixed to the input at the time of a setup. No: Release.

2. Max. volume (Mode: Yes or No)

Yes: Restriction of the maximum volume. (The volume at the time of a setup is set up as the maximum volume. ) No: Release.

3. OSD (Mode:Yes or No)

Yes: On-screen display is performed. (With a screen display. ) No: On-screen display is not performed.

4. Menu (Mode: Yes or No)

Yes: On-screen menu display is performed. (On-screen menu operation is possible. ) No: On-screen display is not performed. (On-screen menu operation is impossible. )

S.SYS

BACK

C.SYS

-14-

Option Setting (Dealer Mode)

5. System setup (Mode:Yes or No)

Yes: System setup operation is possible. No: System setup operation is impossible.

6. RC (Mode:Yes or No)

Yes: Operation by remote control is possible. No: Operation by remote control is impossible.

7. Volume lock (Mode: Yes or No)

Yes: The sound volume is fixed. No: Release.

8. Tuning lock (Mode: Yes or No)

Yes: Tuning operation is forbidden. No: Release.

9. Inhibit lock (Mode: Yes or No)

Yes: Setting of Inhibit Position becomes effective. No: Setting of Inhibit Position does not function.

10. Start mode select (Mode: TV, Off, PC, AV1, AV2, AV3, AV4)

The start mode at the time of power on can be specified.

TV: Every time the TV set is switched on, TV mode will be the initial start mode. Off: The start mode is not specified.

PC: PC mode will be the initial start mode. AV1: AV1 mode will be the initial start mode. AV2: AV2 mode will be the initial start mode. AV3: AV3 mode will be the initial start mode. AV4: AV4 mode will be the initial start mode.

-15-

Service Adjustments Menu

No. Service Group Setting Index Adjustment Item Setting Value

0 Sub Image PAL Sub-Cont 5fh 1 Sub-Bright 7dh 2 Sub-Color 7ch 3 Sub-Tint 7dh 4 NTSC Sub-Cont 64h 5 Sub-Bright 7ch 6 Sub-Color 7ah 7 Sub-Tint 7dh 8 SECAM Sub-Cont 61h

9 Sub-Bright 7ch 10 Sub-Color 7ah 11 Sub-Tint 7dh 12 NTSC4.43 Sub-Cont 61h 13 Sub-Bright 76h 14 Sub-Color 7ch 15 Sub-Tint 7dh 16 480i (60Hz) Sub-Cont 71h 17 Sub-Bright 7eh 18 Sub-Color 80h 19 Sub-Tint 7eh 20 576i (50Hz) Sub-Cont 70h 21 Sub-Bright 7ch 22 Sub-Color 7bh 23 Sub-Tint 7fh 24 480p (60Hz) Sub-Cont 75h 25 Sub-Bright 7dh 26 Sub-Color 7eh 27 Sub-Tint 7ch 28 576p (50Hz) Sub-Cont 75h 29 Sub-Bright 7eh 30 Sub-Color 7eh 31 Sub-Tint 7dh 32 720p (60Hz) Sub-Cont 75h 33 Sub-Bright 7eh 34 Sub-Color 7eh 35 Sub-Tint 7eh 36 1080i (60Hz) Sub-Cont 75h 37 Sub-Bright 7eh 38 Sub-Color 80h 39 Sub-Tint 7dh 40 1080i (50Hz) Sub-Cont 75h 41 Sub-Bright 7eh 42 Sub-Color 80h 43 Sub-Tint 7dh 44 PC Sub-Cont 72h 45 Sub-Bright 80h 46 Sub-Color 80h 47 Sub-Tint 80h 48 Sub-Sharpness MATRIX PAL VBS 0dh 49 NTSC VBS 0dh 50 SECAM VBS 0dh 51 NTSC4.43VBS 0dh 52 PAL YC 0dh 53 NTSC YC 0dh 54 SECAM YC 0dh 55 NTSC4.43 YC 0dh 56 480i (60Hz) Component 0ah 57 576i (50Hz) 0ah 58 480p (60Hz) 0ah 59 576p (50Hz) 0ah 60 720p (60Hz) 0ah 61 1080i (60Hz) 0ah 62 1080i (50Hz) 0ah 63 PC 08h 64 JEPICO PAL VBS PAL YC 88h 65 NTSC VBS NTSC YC 8ah 66 SECAM VBS SECAM YC 88h 67

NTSC4.43 VBS NTSC4.43 YC

8ah 68 480i (60Hz) Component 88h 69 576i (50Hz) 88h 70 480p (60Hz) 88h 71 576p (50Hz) 88h 72 720p (60Hz) 88h 73 1080i (60Hz) 88h 74 1080i (50Hz) 88h 75 PC 80h 76 Main Ver Ver No. Main 0ah 77 Image Menu Standard AV Contrast 3ah 78 Bright 1fh 79 Color 1fh 80 Tint 00h 81 Sharp 1fh 82 Dynamic AV Contrast 3fh 83 Bright 1fh 84 Color 23h 85 Tint 00h 86 Sharp 1fh 87 Cinema AV Contrast 1fh 88 Bright 1fh 89 Color 1bh 90 Tint 00h 91 Sharp 1fh 92 Standard PC Contrast 2fh 93 Bright 1fh 94 Color 1fh 95 Tint 00h

No. Service Group Setting Index Adjustment Item Setting Value

96 Sharp 1fh 97 Graphics PC Contrast 3fh 98 Bright 1fh

99 Color 23h 100 Tint 00h 101 Sharp 1fh 102 Text PC Contrast 28h 103 Bright 1fh 104 Color 19h 105 Tint 00h 106 Sharp 1fh 107 Sound Menu Normal Treble 20h 108 Bass 20h 109 Music Treble 2ah 110 Bass 38h 111 Talk Treble 28h 112 Bass 1ch 113 Active Flag AVC 00h 114 Time AVC 01h 115 S System S2_NICAM 0bh 116 S2_FM 04h 117 Surround EffectA 2fh 118 EffectB 3fh 119 GainA 04h 120 GainB 04h 121

Bass Expander

Gain 28h 122 Mode 01h 123 Threshold HighByte 00h 124 LowByte a0h 125 NICAM Init On/Off 00h 126 F A Mono On/Off 00h 127 NICAM Level HighByte 00h 128 LowByte 00h 129 Wait Count Count 02h 130 Color Temp AV Mid Red 80h 131 Green 80h 132 Blue 80h 133 AV Low Red 80h 134 Green 7eh 135 Blue 73h 136 AV High Red 76h 137 Green 7ah 138 Blue 80h 139 PC Mid Red 80h 140 Green 80h 141 Blue 80h 142 PC Low Red 80h 143 Green 7eh 144 Blue 73h 145 PC High Red 76h 146 Green 7ah 147 Blue 80h 148 Color balance White:TV/CVBS/YC Red 80h 149 Green 80h 150 Blue 80h 151 Black:TV/CVBS/YC Red 80h 152 Green 80h 153 Blue 80h 154 White:Pc Red 80h 155 Green 80h 156 Blue 80h 157 Black:Pc Red 80h 158 Green 80h 159 Blue 80h 160

White:480p(60Hz)/576p(50Hz)

Red 80h 161 Green 80h 162 Blue 80h 163

Black:480p(60Hz)/576p(50Hz)

Red 80h 164 Green 80h 165 Blue 80h 166

White:720p(60Hz)/1080i(60Hz)(50Hz)

Red 80h 167 Green 80h 168 Blue 80h 169

Black:720p(60Hz)/1080i(60Hz)(50Hz)

Red 80h 170 Green 80h 171 Blue 80h 172 Color Pattern 00h 173 Coring JEPICO PAL VBS PAL YC 08h 174 NTSC VBS NTSC YC 0ah 175 SECAM VBS SECAM YC 08h 176

NTSC4.43 VBS NTSC4.43 YC

0ah 177 480i (60Hz) 576i (50Hz) 08h 178 480p (60Hz) 576p (50Hz) 08h 179 720p (60Hz) 0ah 180 1080i (60Hz)1080i (50Hz) 0bh 181 PC 08h 182 V-Sharp PAL VBS PAL YC 00h 183 NTSC VBS NTSC YC 03h 184 SECAM VBS SECAM YC 00h 185

NTSC4.43 VBS NTSC4.43 YC

03h 186 480i (60Hz) 576i (50Hz) 02h 187 480p (60Hz) 576p (50Hz) 00h 188 720p (60Hz) 00h 189 1080i (60Hz)1080i (50Hz) 02h 190 PC 00h 191 NoiseReduction S Video Territory *4 1ch

-16-

Service Adjustments Menu

No. Service Group Setting Index Adjustment Item Setting Value

192 Mode 01h 193 Gain 02h 194 Composite Territory *4 1ch 195 Mode 01h 196 Gain 02h 197 TV Territory *4 1ch 198 Mode 01h 199 Gain 02h 200 Off Territor y *4 04h 201 Mode 01h 202 Gain 00h 203 VPC3230 TV Active Bit 00h 204 AB Low byte 98h 205 AB High byte 02h 206 AC Low byte d1h 207 AC High byte 05h 208 BE FP BE h bit[7:0] 0bh 209 PLL FP BE h bit[7:0] 01h 210 AV Active Bit 01h 211 AB Low byte 99h 212 AB High byte 02h 213 AC Low byte 1ch 214 AC High byte 02h 215 BE FP BE h bit[7:0] 06h 216 PLL FP BE h bit[7:0] 02h 217

480i(60Hz) 576i(50Hz)

Active Bit 01h 218 AB Low byte 98h 219 AB High byte 02h 220 AC Low byte 1ch 221 AC Low byte 02h 222 BE FP BE h bit[7:0] 06h 223 PLL FP BE h bit[7:0] 02h 224 AD9883 Phase 480p(60Hz) 10h 225 576p(50Hz) 10h 226 720p(60Hz) 10h 227 1080i(50Hz) 10h 228 1080i(60Hz) 10h 229 PC gain Red bah 230 Green bah 231 Blue bah 232 PC Offset Red 3fh 233 Green 3fh 234 Blue 3fh 235

Component Offset

Red 3fh 236 Green 3fh 237 Blue 3fh 238 Wide

Video Just Wide

±Flag 00h 239 Data 20h 240 * 10n 02h 241 Fan Control Command Mode 01h 242 Power State State Power Err1 00h 243 Power Err2 00h 244 Black Expand SD APL Upper 32h 245 APL Lower 0fh 246 (Max Value)/4 50h 247

(Min Value)/4 3ch 248 BE Bias 0ah 249

HD 1080i(60Hz)(50Hz)

APL Upper 32h 250 APL Lower 19h 251 (Max Value)/4 64h 252

(Min Value)/4

4ah 253 BE Bias 08h 254 Cinema Pro Gamma Level Low 82h 255 Mid 75h 256 Max 55h 257 Bk Exp Rate off 00h 258

Low

1fh 259 Mid 2fh 260 Max 3fh 261 Bk Exp Magnify off 50h 262 Low 5ah 263 Mid 64h 264 Max 6eh 265 AI Gamma Min 52h 266 Center 5ah 267 Max 7dh 268 AI Off 64h 269 APL Threshold APL Low(%) 19h 270 APL Up(%) 37h 271 Bright Limit 10h 272 Side Bar Adj period 1 00h 273 period 2 00h 274 Auto Ratio 00h 275 Auto Max 00h 276 Fixed level 00h 277 Field Control Condition-1 Field Begin 00h 278 Field End 00h 279 Condition-2 Field Begin 00h 280 Field End 00h 281 Condition-3 Field Begin 00h 282 Field End 00h 283 Condition-4 Field Begin 00h 284 Field End 00h 285 Condition-5 Field Begin 00h 286 Field End 00h

No. Service Group Setting Index Adjustment Item Setting Value

287 Condition-6 Field Begin 00h 288 Field End 00h 289 MenuStep Contrast *n 02h 290 Bright *n 02h 291 Color *n 04h 292 Tint *n 01h 293 Sharp *n 04h 294 BrightBase *n 01h 295 Eco Inverter Power Off 00h 296 Mode2 60h 297 Mode1 b0h 298 Image AGC VPC3230 Star t Value 1bh 299 Limit Value 3fh 300 Step Size 01h 301 Stop Range 08h 302 AD9883 Start Value bah 303 Limit Value 6ah 304 Step Size 04h 305 Stop Range 08h 306 Max Peak PC e6h 307 TV/VBS/YC d7h 308 ComponentD2-D4 d7h 309 Min Ratio 00h 310 Avail Ratio 0fh 311 On/Off Active 00h 312 On/Off D1 Active 00h 313 Screen Saver Interval *100ms 05h 314 High (*2Line) 08h 315 Step (/32Line) 10h 316 OverScan 515i TV/VBS/YC H Start + 27”=1dh, 30”=1ch 317 V Start + 27”=07h, 30”=09h 318 Width + 27”=2bh, 30”=2ah 319 Height + 27”=16h, 30”=1ch 320 525i Component H Start + 27”=17h, 30”=1dh 321 V Start + 27”=02h, 30”=05h 322 Width + 27”=22h, 30”=2ah 323 Height + 27”=15h, 30”=1ch 324 525p Component H Star t + 27”=1ah, 30”=20h 325 V Start + 27”=10h, 30”=13h 326 Width + 27”=1fh, 30”=28h 327 Height + 27”=1ch, 30”=24h 328 625i TV/VBS/YC H Start + 27”=14h, 30”=14h 329 V Start + 27”=21h, 30”=22h 330 Width + 27”=31h, 30”=31h 331 Height + 27”=1fh, 30”=21h 332 625i Component H Start + 27”=12h, 30”=15h 333 V Start + 27”=1bh, 30”=1eh 334 Width + 27”=2ch, 30”=31h 335 Height + 27”=1ch, 30”=21h 336 625p Component H Star t + 27”=2ah, 30”=2eh 337 V Start + 27”=10h, 30”=15h 338 Width + 27”=1fh, 30”=25h 339 Height + 27”=17h, 30”=20h 340 1080i Component H Start + 27”=32h, 30”=5ch 341 V Start + 27”=11h, 30”=10h 342 Width + 27”=

1bh

, 30”=31h 343 Height + 27”=1ah, 30”=18h 344

1080i(50) Component

H Start + 27”=30h, 30”=5eh 345 V Start + 27”=0fh, 30”=0fh 346 Width + 27”=19h, 30”=31h 347 Height + 27”=17h, 30”=19h 348 720p Component H Star t + 27”=1eh, 30”=3ah 349 V Start + 27”=14h, 30”=14h 350 Width + 27”=1ch, 30”=31h 351 Height + 27”=1bh, 30”=1bh 352 540p Component H Star t + 27”=32h, 30”=5ch 353 V Start + 27”=11h, 30”=10h 354 Width + 27”=1bh, 30”=31h 355 Height + 27”=1ah, 30”=18h 356

540p(50) Component

H Start + 27”=21h, 30”=5eh 357 V Start + 27”=0dh, 30”=0fh 358 Width + 27”=12h, 30”=31h 359 Height + 27”=15h, 30”=19h 360 Video Filter TV 02h 361 SD 03h 362 HD 02h 363 Vlock Active Flag 00h 364 Max 00h 365 on 00h 366

off

00h 367 Side Bar Color Type 1 Red 20h 368 Green 20h 369 Blue 20h 370 Type 2 Red 40h 371 Green 40h 372 Blue 40h 373

CH Change Mute

Mode Mute Flag 01h

Important Note: All data except in gray box area is

fixed. Do not change for correct operating. Data in gray box area is initial. Can be set according to adjustment information on page 9.

-17-

Protection Circuit

Sub CPU (IC801) is programmed that the TV set goes to standby mode when there is circuit failure as below.

1. Power fail-1 (Pin-82 of Sub CPU): Detected the low voltage failure in the TV set. (2.5V, 3.3V, 5.0V)

(Normal=High, Failure=Low)

2. Power fail-2 (Pin-83 of Sub CPU): Detected the middle voltage failure in the TV set. (9V, 12V, 30V)

(Normal=High, Failure=Low)

3. Power fail-5 (Pin-84 of Sub CPU): Detected the failure of Audio AMP.

(Normal=Low, Failure=High)

4. Temperature fail (Pin-92 of Sub CPU): Detected the failure of Temperature Sensor.

■ Releasing the protective circuit and restoring power supply

To release the protective circuit and restore power supply, turn the power to the TV set OFF and then ON again via the POWER ON-OFF button on the remote control or the TV set. This will work only if the power supply trouble was temporary. If there is permanent trouble such as a damaged circuit, power cannot be restored and the circuit will have to be repaired.

■ When operating the Protection Circuit, On-screen Display massage is displayed and the LED blinks.

Internal temperature is too high.

Set shuts down.

Massage of On-screen Display

1. Temperature Failure

When the internal temperature exceeds normal, following message is displayed for 10 seconds and LCD TV will be turned off automatically.

2. Fan Trouble

When the internal cooling fan has trouble, following message is displayed for 10 seconds in every 10 minutes.

Warning!

Internal fan is in trouble, not working properly.

Power LED Blinking

When IC801 detects power failure, the Power LED will blink to indicate a power failure has occurred. The number of blinks will be determined by the type of failure detected as shown below.

1. Power fail-1 (Low voltage failure): One time (in Green).

2. Power fail-2 (Middle voltage failure): Two times (in Green).

3. Power fail-1 and Power fail-2: Three times (in Green).

4. Power fail-5 (Audio AMP. failure): One time (in Yellow).

5. Temperature Failure: Two times (in Red).

Note: In case of overlapped failure, 1 to 5 is repeated in turn.

If power failure is detected 3 times within 15 minutes, the TV set will enter the standby mode and cannot be switched on. To reset the operating programme of the Sub CPU, it is necessary to disconnect the AC cord for a short time.

-18-

Mechanical Disassembly

1. Stand Removal

1. Position TV face down on a padded or cushioned surface to protect the screen and finish.

2. Remove 10 screws to take the stand off.

CAUTION: Hold the stand firmly as you remove the last screw.

2. Cabinet Back Removal

Remove Screw-A (3mm X 12mm, 14 screws), Screw-B (3mm x 6mm, 2 screws) and Screw-C (4mm x 20 mm, 8 screws), then remove the Cabinet Back.

Screw

Screw-A

Screw-B

Screw-A

Screw-C

Note: Cabinet Back can be removed even if it does not remove a stand.

PC INPUT

S-VIDEO



I

(COMPONENT)

N

P

Y - CB/PB - CR/PR L-AUDIO-R

U

(COMPONENT)

M

O

U

N

T

I

P

T

U

O

T

R



AUDIO (L/R)

(FOR SERVICE)

L-AUDIO-RVIDEO

A V 1

A V 3

A V 4

L-AUDIO-RVIDEO

-19-

Mechanical Disassembly

3. Circuit Board and Electric Parts Removal

Remove the cabinet back and can be seen the chassis.

1) Sub Board Removal

Remove the 12 screws to take the shield cover off. And remove the Sub Board.

2) Main Board Removal

The Main Board is attached in the bottom of the Sub Board. Remove the Main Board after removing Sub Board previously.

3) Power Unit Removal

A Fan (FN903) is attached on the Power Unit. Remove the Power Unit after removing a Fan (FN903) together with the mounting bracket.

4) Speaker Removal

Remove 4 screws to take the speaker box off. Remove 8 screws to take the speaker off.

Location of Circuit Board and Electrical Parts

ASSY, PWB, SUB (Top) & ASSY, PWB, MAIN (Under)

ASSY, PWB, KEY SW

ASSY, PWB, JACK-A

ASSY, PWB, FILTER

POWER UNIT

ASSY, PWB, JACK-B

ASSY, PWB, CONTROL

ASSY, PWB, POWER SW

Speaker

FAN (FN901)

FAN (FN903)

Speaker Box

Speaker

-20-

Mechanical Disassembly

4. Cabinet Front Removal

1) Remove the Stand, Cabinet Back and the Speakers.

Remove the stand, cabinet back and the speakers with reference to page 12 and page 13.

2) Remove the Cabinet Bottom

Remove Screw-A (3mm x 8mm, 2 screws) and Screw-B (3mm x 12mm, 2 screws) to take the Cabinet Bottom off.

3) Remove the Key Switch

Remove 2 screws (3mm x 10mm) to take the Key Switch (Circuit Board, Cover and the Buttons) off.

Screw-A

Screw-B

4) Remove the Control Board and Power SW Board

Remove 2 screws (3mm x 10mm) to take the Control Board off. Remove 1 screw (3mm x 10mm) to take the Power SW Board off.

Remove the Jack-B Frame

Remove 2 screws (3mm x 10mm) to take the Jack-B Frame off.

Cabinet Bottom

Screw

Key Switch

Screw

Power SW Board

Control Board

Jack-B Frame

+ 44 hidden pages