
CHECKING THE POWER C.B.A.
Disconnect all connector cables on the Power C.B.A., then take out the Power C.B.A. from the unit.
Refer to Power C.B.A. Service Position, Figure 1.
Check the following parts on the Power C.B.A. with the Tester.
Connect a jumper wire between TP810 and TP811 on the Power C.B.A. by soldering.
Replace any defective parts.
Check the following parts with the Tester.
D803
~
812, T801, RL801, RL802,
Q801, R807, R808, R810
Replace any defective parts.
F801, F1001, IC1001 (Between Pin 1 and Pin 3), D1002, D1009, R1022, R1023, PR1001, PR1002, PR1003, PR1004,
PR1005, PR1010, PR1011, PR1012, PR1013, D1028, R1025, R1029, D1020, D1011, D1012, D1014, D1005, D1006,
D1007, D1010, D1013, D1017, D1015, D1019, D1018, D1016, IC1002, Q1001, Q1002, Q1003, Q1004, Q1005, Q1006
P1006 (Pin 1)
P1006 (Pin 6)
P1006 (Pin 12)
P1006 (Pin 17)
P1006 (Pin 18)
P1006 (Pin 20)
P1006 (Pin 2)
P1001 (Pin 5)
P1001 (Pin 2)
:
:
:
:
:
:
:
:
:
STBY+7V
AMP+16V
AMP-16V
REG+30V
UNREG+17V
REG+9V
AC STOP
DC+19V
DC+17V
:
:
:
:
:
:
:
:
:
Approx. +10V
Approx. +15V
Approx. -15V
Approx. +30V
Approx. +17V
Approx. +9V
(Refer to Figure. 1.)
Approx. +18V
Approx. +17V
Is there a snap sound of the Relay turning ON?
(Relay: RL801 on the Power C.B.A.)
OK
OK
NG
NG
Check the other parts on the Power C.B.A.
and replace any defective parts.
NG
Check the incorrect voltage line and surrounding parts.
Replace any defective parts.
NG
Still NG
NG
Plug in the AC Cord.
Plug in the AC Cord and turn the power ON.
Does the Lamp light up?
There is no problem with the Power C.B.A. However,
the other C.B.A. is defective. Check the Main C.B.A.
and Base C.B.A., and repair if necessary.
(Check LAMP ON(H) signal(Pin 20 of IC6003),
STANDBY(L)/POWER ON(H) signal(Pin 21 of IC6003),
ATSC ON(H) signal (Pin 105 of IC6003), etc., on the
Main C.B.A.)
Check the Waveform between TP1008 and
TP1007 on the Power C.B.A.
Unplug the AC Cord.
Remove the jumper wire between TP810 and TP811 on the Power C.B.A., and reconnect all connector cables, then
reinstall the Power C.B.A. into the unit.
OK
Check the voltage at the following points.
(Use Pin 30 of P1006 as GND.)
OK
OK
The Ballast C.B.A. is defective.
(Refer to "CHECKING THE BALLAST C.B.A.")
There is no problem with the Power C.B.A.
PT-44LCX65-K / PT-52LCX65-K / PT-61LCX65-K
112
Содержание PT-44LCX65-K
Страница 5: ...3 ABOUT LEAD FREE SOLDER PbF 5 PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K ...
Страница 134: ...PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 134 ...
Страница 190: ...PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 190 ...
Страница 191: ...14 EXPLODED VIEWS CABINET SECTION 14 1 MAIN PARTS SECTION PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 191 ...
Страница 192: ...PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 192 ...
Страница 193: ...14 2 FRONT AND BASE SECTION PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 193 ...
Страница 194: ...14 3 DISPLAY SECTION PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 194 ...
Страница 195: ...PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 195 ...
Страница 196: ...14 4 SCREEN SECTION PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 196 ...
Страница 197: ...PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 197 ...
Страница 198: ...14 5 PROJECTION SECTION PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 198 ...
Страница 199: ...14 6 TV UNIT SECTION 1 PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 199 ...
Страница 200: ...14 7 TV UNIT SECTION 2 PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 200 ...
Страница 201: ...14 8 BALLAST C B A SECTION PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 201 ...
Страница 202: ...14 9 PACKING PARTS AND ACCESSORIES SECTION PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 202 ...
Страница 226: ...16 EXPLODED VIEWS PROJECTION SECTION 16 1 PROJECTION SECTION 1 PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 226 ...
Страница 227: ...16 2 PROJECTION SECTION 2 PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 227 ...
Страница 228: ...16 3 PROJECTION SECTION 3 PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 228 ...
Страница 229: ...16 4 PROJECTION SECTION 4 PT 44LCX65 K PT 52LCX65 K PT 61LCX65 K 229 ...