Sanyo LCD-30CA1Z User manual

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
A
.B
STILL
ECO
JXPPB
TV PC
AV1 AV 2 AV3 AV 4
P P
CHANNEL VOLUME
WIDE
AUDIO-S VIDEO-S
SURROUND
BASS
F
BACK
MENU
S.SYS C.SYS
OK
OK

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 .
39.7
25.1
57.1
38.8
62.2
23.5
76.5 10.3 13.2
10.8
64.6
[ Details of Dimensions ]
(Unit of length=cm)

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/m2
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, CB/PB, CR/PRInput (Phone Jack) x 1 set
• AV3 (Audio): L/R Stereo Input (Phone Jack) x 1 set
• AV4 (Video): Component Y, CB/PB, CR/PRInput (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
AV2 INPUT
JACK-B UNIT
K13F K8F
V, Y, C
IC1201
AV SELECTOR
15(V)
17(Y)
19(C)
U/V TUNER (A202) 17
TV_V 63(V)
56(Y)
58(C)
Y, C
K8G
IC7191
Y/C SW
9(Y)
1(C)
6(Y)
3(C)
8(Y)
16(C)
IC2201
DIGTAL VIDEO DECODER
73(Y)
71(C)
DEC_Y
, C
SUB UNIT
YA (2-9)
IC7603
DIGITAL RGB PROCESSER
RGB
IC3001
MAIN CPU
SCAN
CONVERTER
RGB
IC7002
LVDS
DRIVER
IC7001
COLOR
MANAGEMENT
RGB
K42G
53(V)
TV_V
K8G K42G
IC7101
FOR NTSC SIGNAL
3D Y/C SEPARATION
84(Y)
83(C)
6(Y)
4(C)
IC7171 MIX
2(V)
4(V)
2(V)
6(V)
41(V) (AV)_V
IC1206
VIDEO SW
K42G
K8G
MONITOR OUT
COMP_V
AV1 INPUT
V, Y, C8(V)
10(Y)
12(C)
JACK-A UNIT
K10E
K8E
K10E K8E
AV4 INPUT
AV3 INPUT
Y, Cb, Cr 43(Y)
41(Cr)
42(Cb)
Y, C b , Cr 35(Y)
33(Cr)
34(Cb)
IC1011
COMPONENT SW
K10C K11C
K10C K11C
D-SUB
27(Y)
25(Cr)
26(Cb)
Q1162 (Y)
Q1161 (Cr)
Q1163(Cb)
Q1151 (Cr)
Q1152 (Y)
Q1153 (Cb)
6(Cr)
5(Y)
4(Cb)
Y, C r, C b
Y
, Cr, Cb 3(Y)
5(Cb)
1(Cr)
IC1701
VIDEO SW
21(Cr/R)
19(Y/G)
15(Cb/B)
Y, C r,Cb/
RGB54(Cr/R)
48(Y/G)
43(Cb/B)
IC4001
A/D
CBA (2-9)
(Cr, Cb)
YA (2-9)
CBA (2-9)
CRA (2-9)
PC_RGB
K10C K11C
7(R)
9(G)
11(B)
MAIN UNIT
88
75

-5-
Chassis Block Diagrams (Audio Signal Lines)
AV2 INPUT
JACK-B UNIT
K13D K8D
L/R
IC1201
AV SELECTOR
U/V TUNER (A202)
17
SIF
67
SUB UNIT
TV-R
6
1
64
IC002
PRE-AMP.
MONITOR OUT
AV1 INPUT
JACK-A UNIT
K10E
K8E
K10E K8E
AV4 INPUT
AV3 INPUT
K10E K8E
K10E K8E
PC K10E K8E
IC101
AUDIO MAIN AMP.
13
7
SP902
SP901
16 (+) L-OUT
R-OUT
9
HEADPHONE
JACK
IC001
NICAM/A2 STEREO
SOUND CONTROL
36
37
TV-L
62
52
53
SELECTED-L
SELECTED-R
56
57
29
27
L-OUT
R-OUT
2
L-OUT
R-OUT
24 (+)
27(R)
28(L)
HEADPHONE L/R
K13F K8F
HEADPHONE L/R
18 (R)
16 (L)
L/R
11(R)
9 (L)
45 (R)
43 (L)
L/R
L/R
L/R
L/R
61 (R)
59 (L)
25 (R)
22 (L)
31 (R)
29 (L)
KSP9L
KSP9R
15 (-)
25 (-)

Power Supply Lines
-6-
AC
Input
AC 100-245V
FILTER UNIT
LCD PANEL
3
CN69
CN61
KAC2
PWR ON
K16V
5V_LVDS
CN60
7,8
43,44 48-50
1-3
17 34
12V_Audio 32V_Tuner
9V_Analog
9V_Analog 5V_Digital
3
26-30
2,3
6-8
1
K16P
3.3V_Standby
5V_Standby
D1601
D1171
D261
D1602
ON: H, OFF: L
D1654D1657
Q801/802
Q803/804 Q1871
IC1651/Q1651
5V_Analog
IC261
5V_ST_SAVE
5V_ST
Q807
3.3V_ST_SAVE
3.3V_Standby
5V_V_SW
3.3V_MTR
Q808
Q6811
PF-2
PF-1
PF-1
CN62
K69H
IC1172
D2263
D4106
5V_DEC
IC2206
5V_A/D
-5V_A/D2
IC4181
IC5104
1.8V_MTR
IC5105
3.3V_A/D
IC4106
IC4110
-5V_A/D
D5102
D4101
D5101
D4102
3.3V_DEC
IC2204
D2261 D2262
2.5V_VPL
IC3193
D3196 D3195
2.5V_VGR
IC8962
D8963 D8964
3.3V_Y/C
IC8961
D8961 D8962
3.3V_VPL 3.3V_LVD
3.3V_PIX
3.3V_AP
IC3194
IC1001
DDC
IC1002 IC1003
A1902
RC PRE-AMP.
IC3191
D3197 D3198
2.5V_PIX
IC3192
D3193 D3194
D3191 D3192
K8G
K42G
19
32
5V_Standby
5V_Standby
5V_Standby
Q6801
5V_DPMS 5V_DPMS
K8E
K10E
K10C
K11C
8
3
16
5
1-3
50-58
K8J
K19J
10 10
3
KFN3
T-SENSOR
92 84
Q1854
82 83
88 77
LCD ON/OFF
86
PF-5
TH1601
Temperature Sensor
FAN_LOCK2 FN903
IC801
SUB CPU
3
KFN1
FN901
R L
CN3
K7L
P6
Fuse F601
Line Filter
F601/602
POWER UNIT
SUB UNIT
K16A
CN71
3
2Powr Fail-1
Powr Fail-2
T-SENSOR
Audio AMP. Fail
FAN LOCK2
FAN LOCK1
FAN_LOCK1
IC101
AUDIO AMP.
CONTROL UNIT
JACK-A UNIT
MAIN UNIT
-5V
1.5V PIX
IC3190
1.5V PIX P D3101 D3102

Power Supply Lines
-7-
9V_Analog
5V_Digital
5V_ST
5V_V_SW
D1105
5V_A/D
-5V_A/D
1.8V_MTR
3.3V_DEC
3.3V_LVD
D1110
D1115
D1702
5V_Standby
5V_DPMS
13 5
IC8971
SYNC. SEP.
3IC7171
Y/C MIX
13
IC7191
Y/C SW
IC8401
SW
14
14
16
IC1702
SYNC SEP.
IC1703
IC1704
3.3V_MTR
IC7603
RGB
MATRIX
IC8001
CPU
EXTENSION
IC7601
IC7602
MEMORY
IC5102
14
14
64
IC1771
IC1772
IC8406
DD
CONVERT
IC3001
MAIN CPU
3.3V_PIX 1
IC3102
RESET
7IC8902
RESET
IC4001
A/D CONVERT
IC8403
D/D
CONVERT
D1701
IC7101
3D Y/CSEP.
5
52
40
28
12
IC2203
25
8
IC1707
IC4102
52 IC4103
-5V_A/D2 52 IC4104
8
IC3104
16
IC3171
4,16
IC3151 5
IC3152
2IC3153
CLOCK
OSC.
IC7001
COLOR MANAGEMENT
IC7002
LVDS DRIVER
IC1101
COMPONENT
VIDEO SW
IC2201
VIDEO
DECODER
3.3V_A/D
2.5V_VPL
2.5V_VGR
3.3V_Y/C
3.3V_VPL
3.3V_AP
2.5V_PIX
5V_DEC
20
IC1701
VIDEO
SW
8
IC1773
3.3V_Standby
3.3V_ST
5
IC3103
11, 33
IC3142
SRAM
37
IC3141
FLASH
MEMORY
14
IC8402
D/D
CONVERT
IC’s Power Supply Lines (Main Unit)

Power Supply Lines
-8-
A202
TUNER
12V_Audio
32V_Tuner
9V_Analog
5V_Standby
8
14
16,62,99
8
12
5V_Analog
IC1851
FAN
CONTROL
IC001
NICAM/A2
DECODER
IC101
AUDIO AMP.
42
D1201
IC1201
AV SELECTOR
3IC1206
VIDEO SW
IC801
SUB CPU
2
IC802
RESET
8
IC804
EEPROM
5
IC803
5V_ST_SAVE
19
IC002
AUDIO
PRE-AMP.
8V
IC003
13
IC’s Power Supply Lines (Sub Unit)

-9-
Sub CPU (IC801) Port Functions
Pin Pin Name Function Name Description I/O
No.
1P96/ANEX1/SOUT4 BSD_OUT Serial output Out
2P95/ANXO/CLK4 BSD_CLK Serial clock In
3P94/DA1/TB4IN FAN-CTRL1 Fan control-1 (D/A data) Out
4P93/DA0/TB3IN FAN-CTRL2 Fan control-2 (D/A data) Out
5P92/TB2IN/SOUT3 - Not used (Output= Low) -
6P91/TB1IN/SIN3 Hsync Horiz. sync. input In
7P90/TB0IN/CLK3 - Not used (Open) -
8 BYTE
-External Pulldown (10K ohms) In
9CNVss 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) -
30 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 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)
In
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)
In
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
84 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 ser-
vice 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.
0
[ 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
ECO
OK
MENU
RECALL
ECO
OK
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.

-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: AV 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 exit from the Option Setting Mode, press the MENU or RECALL key or turn the TV off.
BACK
MENU
S.SYS C.SYS
OK
OK
MENU
MENU
Max. volume
OSD
Menu
System setup
RC
Volume lock
Tuning lock
Inhibit lock
Start mode select
No
Yes
Yes
Yes
Yes
No
No
Yes
TV
No
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. )

-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
0Sub Image PAL Sub-Cont 5fh
1Sub-Bright 7dh
2Sub-Color 7ch
3Sub-Tint 7dh
4NTSC Sub-Cont 64h
5Sub-Bright 7ch
6Sub-Color 7ah
7Sub-Tint 7dh
8SECAM Sub-Cont 61h
9Sub-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 Territory *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 Start 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 Start + 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 Start + 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 Start + 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 Start + 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
PC INPUT
I
N
P
U
T
Y - CB/PB - CR/PRL-AUDIO-R
A
V
1
A
V
3
(COMPONENT)
M
O
N
I
T
O
R

S-VIDEO
A
V
4
AUDIO
(L/R)
L-AUDIO-RVIDEO

(COMPONENT)
L-AUDIO-RVIDEO
O
U
T
P
U
T

(FOR SERVICE)
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-A
Screw-A
Screw-A
Screw-C
Note: Cabinet Back can be removed even if it does not remove a stand.

-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 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