Sylvania 6842PE M, Service Manual, Page: 27 / 82

1-7-1 L0604TR
CN501 Pins (1,2) P-ON+6.5V
CN501 Pin (5) AL+33V
CN501 Pins (8,9) P-ON+21V
FLOW CHART NO.1
The power cannot be turned on.
Is the fuse normal?
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Remove CLN601 connecting to CN501 and check
whether Pins (1,2,5,8,9,11) on CLN601 are
Remove CLN601 connecting to CN501. Are Pins
(1,2,5,8,9,11) on CN501 are shorted?
Is the +4.5V voltage outputted between Pin (11)
and GND?
Is the +3.3V voltage outputted to the emitter of
Q503?
After reconnecting CLN601 to CN501, is the
following voltage between each pin and GND
during turning the power on?
Check each line of power supply on the Analog
CBA and service it if defective.
Not shorted Shorted
After replacing fuse,
does it break when
turning the power on ?
Replace the Plasma
Display Module.
Replace the Plasma Display Module.
Replace the Plasma Display Module.
Replace IC205.
Is the "H" signal inputted into Pin (2) on CN502?
Check Q503, D503 and the periphery circuit,
and service it if defective.
TROUBLESHOOTING