Panasonic PT-60LCX64-K, Руководство по обслуживанию, Страница: 137 / 279

CHECKING THE DIGITAL TUNER POWER C.B.A.
Disconnect all connector cables on the Digital Tuner Power C.B.A., then take out the Digital Tuner Power C.B.A.
from the unit.
Refer to Digital Tuner Power C.B.A. Service Position, Figure 4.
Check the following parts on the Digital Tuner Power C.B.A. with the Tester.
Replace the defective parts if necessary.
F1201, IC1001 (Between Pin 1 and Pin 2), IC1202, IC1203,
D1201~D1211, R1201, R1203, R1210,
P1204, P1208, P1213, PR1201, PR1203
P1203(Pin 1):
P1203(Pin 2): Approx. 30V
Approx. 10V
OK
OK
NG
Check the other parts on the Digital Tuner Power C.B.A.
and replace the defective parts if necessary.
NG
Check the incorrect voltage line and surrounding parts.
Replace the defective parts if necessary.
NG
Disconnect the AC Cord (Ref No. 73) from the Power C.B.A. and connect it to P1201 on the Digital Tuner Power C.B.A.,
then plug in the AC Cord.
Check the Waveform between TP1201 and
TP1202 on the Digital Tuner Power C.B.A.
OK
Check the voltage at the following points.
(Use Pin 5 of P1203 as GND.)
OK
There is no problem with the Digital Tuner Power C.B.A.
PT-60LCX64-K
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