1-11-6 E9TK3TR
2 DVD Section
0.51
0.92
1.27
1.61
1.98
2.39
2.90
3.60
4.30
OPEN
/CLOSE
DVD
-P LAY
SELECT
DVD
-STOP
DVD
-REC
Terminal voltage of IC501-8
KEY-2
IC501-8
(V)
DUBBING
Ye s
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
P4(PW/SW ASSEMBLY) if defective.
No
Re-install the key switches correctly or replace
P4(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).
Ye s
Ye s
Replace P1(AV ASSEMBLY) or P2(DVD MECHANISM
& DVD MAIN BOARD ASSEMBLY).
Ye s
Is 5V voltage supplied to Pin(3) terminal of the RS1501
(remote control receiver)?
Ye s
No
Check SYS+5V line, and replace P1(AV ASSEMBLY)
or P4(PW/SW ASSEMBLY) if defective.
No
No
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