
CHECKING THE MAIN P.C.B.
Disconnect all connector cables on the TV Unit,
then take out the Main P.C.B. from the TV Unit.
Refer to Main P.C.B. Service Position., Figure 3.
Refer to Main P.C.B. Service Position., Figure 3.
Check for short-circuit of following points on the Main
P.C.B. with the tester.
Replace any defective parts.
Check the following parts on the Main P.C.B. with the
tester.
Replace any defective parts.
Reassembly the Main P.C.B. by connecting all
connector cables, leave the TV Unit pull out.
Plug in the AC Cord and turn on the unit power.
There is no problem with the Main P.C.B.
Check for short-circuit of the other P.C.B.s
(Base P.C.B., LCD Drive P.C.B., etc.) with the tester,
and repair if necessary.
NG
OK
Check the voltage at the following points on the Main P.C.B.
Note:
The TV Unit includes the Main P.C.B.
- TP1110 or TP1100
: Approx. +5V (DT+5V)
- TP1113 or TP1101
: Approx. +9V (DT+9V)
- CN3000 (Pin35), TP1111, or TP1104 : Approx. +2.5V (SW+2.5V)
- CN3000 (Pin43), TP1102, or TP1117 : Approx. +5V (STBY+5V)
- CN3000 (Pin44) or TP1116
: Approx. +9V (SW+9V)
- CN6000 (Pin3)
: Approx. +3.3V (AC_SW)
- CN6000 (Pin5)
: Approx. +30V (DT+30V)
- CN6000 (Pin6)
: Approx. +17V (DRV+17V)
- CN6001 (Pin5), TP1103, or TP1118
: Approx. +3.3V (STBY+3.3V)
- CN6008 (Pin3) or TP1115
: Approx. +5V (SW+5V)
- CN6008 (Pin4), TP1112, or TP1105
: Approx. +3.3V (SW+3.3V)
- IC1100 (Pin1 - Pin3), (Pin1 - Pin26)
- IC1102 (Pin1 - Pin2)
- IC1103 (Pin1 - Pin2)
- IC1104 (Pin4 - Pin5)
- IC1105 (Pin5 - Pin5)
- Q1104 (Pin1 - Pin8)
- Q1105 (Pin1 - Pin8)
- TP1110 or TP1100
- TP1113 or TP1101
- CN3000 (Pin35), TP1111, or TP1104
- CN3000 (Pin43), TP1102, or TP1117
- CN3000 (Pin44) or TP1116
- CN6000 (Pin5)
- CN6000 (Pin6)
- CN6001 (Pin5), TP1103, or TP1118
- CN6008 (Pin3) or TP1115
- CN6008 (Pin4), TP1112, or TP1105
PT-52LCX66-K / PT-56LCX16-K / PT-61LCX66-K
41
Summary of Contents for PT-52LCX66-K
Page 6: ...4 Specifications 6 PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K ...
Page 8: ...PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 8 ...
Page 9: ...PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 9 ...
Page 10: ...5 2 Replacement of Lamp PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 10 ...
Page 106: ...PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 106 ...
Page 116: ...PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 116 ...
Page 180: ...PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 180 ...
Page 181: ...16 2 BASE BODY SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 181 ...
Page 182: ...16 3 DISPLAY SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 182 ...
Page 183: ...PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 183 ...
Page 184: ...16 4 SCREEN SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 184 ...
Page 185: ...PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 185 ...
Page 186: ...16 5 PROJECTION SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 186 ...
Page 187: ...16 6 TV UNIT SECTION 1 PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 187 ...
Page 188: ...16 7 TV UNIT SECTION 2 PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 188 ...
Page 189: ...16 8 PACKING PARTS AND ACCESSORIES SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 189 ...
Page 208: ...18 2 OPTICAL UNIT SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 208 ...
Page 209: ...18 3 OPTICAL IRIS UNIT SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 209 ...
Page 210: ...18 4 POWER UNIT SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 210 ...
Page 211: ...18 5 PACKING PARTS SECTION PT 52LCX66 K PT 56LCX16 K PT 61LCX66 K 211 ...