Diagnosis; Trouble Shooting - Pioneer DV-300-K Service Manual

5

5. DIAGNOSIS

5.1 TROUBLE SHOOTING

POWER DOES NOT TURN ON
Is the voltage at
pin 8 and pin 9 of CP502 about 3.3V
and at pin 5 of CP502
about 5V?
Yes
Is there waveform at
X4001 about 3.0Vp-p ?
Yes
Write DVD FIRMWARE DATA.
DECK DOES NOT ACCEPT
OPEN/CLOSE
Is the voltage at
pin 8 and 19 of IC2301
about DC6V ?
Yes
Is the lose connection
at CD2302 to DECK ?
No
Change DVD LOADER.
5
6
No
No
No
Yes
DV-300-K
6
7
Check AT+3.3V line of POWER BLOCK.
Check Q515 and peripheral circuit.
Check X4001, IC4001 and
peripheral circuit.
Check P.CON 6V line of
POWER BLOCK.
Check CD2302
connection to DECK.
7
8
A
B
C
D
E
F
23
8