1-10-6
E9NG0TR
2 DVD Section
0.51
0.92
1.27
1.61
1.98
2.39
2.90
3.60
4.30
OPEN
/CLOSE
DVD
-PLAY
DVD
DVD
-STOP
DVD
-REC
Terminal voltage of IC501-8
KEY-1
IC501-8
(V)
---
---
---
DUBBING
Yes
No
FLOW CHART NO.1
The key operation is not functioning.
Are the contact point and the installation state of
the key switches normal?
Is the control voltage normally inputted into
Pin(8) of IC501?
Check the key switches and their periphery, and
replace P3(PW/SW ASSEMBLY) if defective.
No
Re-install the key switches correctly or replace
P3(PW/SW ASSEMBLY).
FLOW CHART NO.2
No DVD operation is possible from the remote control. (Operation is possible from the unit.)
Replace P1(AV ASSEMBLY) or remote control(X1).
Check the line between the RS1501 (remote
control receiver) and Pin(14) of IC501, and replace
P1(AV ASSEMBLY) if defective.
Is the "L" pulse sent out from Pin(1) terminal of the
RS1501 (remote control receiver) when the remote
control is activated?
Is the "L" pulse signal supplied to Pin(14) of
IC501?
Replace P1(AV ASSEMBLY) or P2(DVD
MECHANISM & DVD MAIN BOARD ASSEMBLY).
Yes
Yes
Replace P1(AV ASSEMBLY) or P2(DVD
MECHANISM & DVD MAIN BOARD ASSEMBLY).
Yes
Is 5V voltage supplied to Pin(3) terminal of the
RS1501 (remote control receiver)?
Yes
No
Check AL+5V line, and replace P1(AV ASSEMBLY)
if defective.
No
No
FLOW CHART NO.3
Replace the P2(DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY).
The [No Disc] indication.
Both picture and sound do not operate normally.
