Loewe 67501 D 00, Руководство по обслуживанию

Страница: 10 / 61

67501 T/D 00
2 – 1
DVD Player 67501 Service Manual 67501(for LOEWE) Market E
CHAPTER 2.
TROUBLE SHOOTING TABLE
[1] MAIN
The main PWB circuit doesn't function when the power is turned ON.
The power does not become ON.
The power becomes OFF.
Are AT_10V, AT_9V, AT_5V supplied to CN9101?
Is the fan turning on when the power is
turned ON?
Check each output of IC9101, IC9102,
IC9103 and their peripheral circuits.
Check the fan, fan power and their
peripheral circuits.
Check the analog PWB.
Is the level of pin (6) of CN9101 at Low?
NO
Check the power PWB.
Is the level of pin (14) of CN5601 at High? Check R5626 and the analog PWB.
NO
Is 1.2V supplied to TL9101, 3.3V to TL9102 and 2.6V to
TL9103 respectively?
Check IC8302, IC8303, IC8304, IC8305, IC8306, IC8308,
IC8503, IC8504 and their peripheral circuits.
Check IC9101, IC9102, IC9103 and their peripheral circuits.
NO
NO
Is 27MHz detected at R8175? Check X8102 and its peripheral circuits.
NO
Does pin (1) of P8102 turn to High and Low on start-up? Check IC8104 and its peripheral circuits.
NO
YES
FLOW CHART No.1
YES
YES
YES
YES
YES
YES
NO
YES NO