Toshiba RD-XV48DTKB, Service Manual

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1-11-6 E3NG1TR
2 HDD/DVD Section
0.51
0.92
1.27
1.61
1.98
2.39
2.90
3.60
4.30
HDD
HDD/DVD
-PLAY
DVD
HDD/DVD
-STOP
HDD/DVD
-REC
Terminal voltage of IC501-8
KEY-1
IC501-8
(V)
HDD>DVD
VCR>DVD
OPEN
/CLOSE
VCR
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 HDD/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/HDD MAIN BOARD ASSEMBLY).
Yes
Yes
Replace P1(AV ASSEMBLY) or P2(DVD MECHANISM
& DVD/HDD 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/HDD MAIN
BOARD ASSEMBLY).
The [No Disc] indication.
Both picture and sound do not operate normally.