Tips for determining defective circuit in case of picture problem
Display the internal pattern for "LCD-CHK" in Service Adjust
Mode.
Refer to "HOW TO DISPLAY THE INTERNAL PATTERN FOR
LCD-CHK" as shown in Figure A.
If the internal pattern is OK, the circuit shown in dark gray
can be judged OK.
Display the internal pattern for "GC-CHK" in Service Adjust
Mode.
Refer to "HOW TO DISPLAY THE INTERNAL PATTERN FOR
GC-CHK" as shown in Figure B.
If the internal pattern is OK, the circuit shown in gray can
be judged OK.
Circuit shown in gray
IC2501
DRIVE P.C.B.
MAIN P.C.B.
REAR JACK P.C.B.
TUNER P.C.B.
FRONT JACK/OPERATION P.C.B.
SD/HDMI P.C.B.
IC2901
CN2901
CN7001
CN3501
TUNER
CN8801
SD
CARD
CN3502
CN3001
CN5503
CN9804
CN8201
CN9802
CN3001
CN3501
CN6701
COMPONENT IN 1,2
VIDEO IN 1,2
HDMI-IN 3
HDMI-IN 1
PC-IN
HDMI-IN 2
VIDEO IN 3
S-VIDEO IN
CN8970
CN2001
CN2101
CN2201
IC2902
LCD
VIDEO
PROCESS
INTERNAL
PATTERN
FOR LCD-CHK
LVDS
REC.
IC7119
IC7101
LVDS
TRANS.
OSD MIX
LVDS
REC.
I/P
CONVERTER
PICTURE
CONTROL
IC3001
VIDEO
SW
IC5510
HDMI I/F
/AD CONV.
IC5503
HDMI SW
/EQL
IC9801
EQL
IC8001
DIGITAL
SIGNAL
PROCESS
LCD/PRISM UNIT
IC8802
DEMODU.
EEPROM
PEAKS
IC8201
INTERNAL
PATTERN
FOR GC-CHK
Circuit shown in dark gray
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7
31
Summary of Contents for LIFI PT-50LCZ7
Page 6: ...4 Specifications 6 PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 ...
Page 68: ...PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 68 ...
Page 84: ...PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 84 ...
Page 85: ...14 2 BASE BODY SECTION PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 85 ...
Page 86: ...14 3 DISPLAY SECTION PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 86 ...
Page 87: ...PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 87 ...
Page 88: ...14 4 SCREEN SECTION PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 88 ...
Page 89: ...PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 89 ...
Page 90: ...14 5 OPT TV UNIT SECTION PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 90 ...
Page 91: ...14 6 LAMP UNIT SECTION PT 50LCZ70 PT 56LCZ70 PT 61LCZ70 PT 50LCZ7 PT 56LCZ7 PT 61LCZ7 91 ...