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1-10-8
H9740TS
3. VCR Section
Yes
Yes
No
No
FLOW CHART NO.1
FLOW CHART NO.2
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
Pins(7,8) of IC501?
Re-install some key switches correctly or
replace some key switches.
Check the key switches and their periphery, and
service it if defective.
Replace IC501.
0.51
0.92
1.27
1.61
1.98
2.39
2.90
3.60
4.30
-----
-----
-----
-----
S-INH
FF
REW
-----
-----
-----
-----
CH UP
OUTPUT
SELECT
STOP
/EJECT
PLAY
CH
DOWN
POWER
REC/OTR
Terminal voltage of IC501-7,8
KEY-1
IC501-7
KEY-2
IC501-8
(V)
Replace the RM2001 (remote control receiver).
Replace remote control unit if need.
Check the line between the RM2001 (remote
control receiver) and the Pin(14) of IC501, and
service it if defective.
Replace IC501.
Is the "L" pulse sent out from Pin(1) terminal of
the RM2001 (remote control receiver) when the
remote control unit is activated?
Is the "L" pulse signal supplied to the Pin(14) of
IC501?
Yes
Is 5V voltage supplied to the Pin(3) terminal of
the RM2001 (remote control receiver)?
Yes
Yes
No
Check AL+5V line and service it if defective.
No
No
No VCR operation is possible from the remote control unit. (Operation is possible from the unit.)
Summary of Contents for DV-NC100S
Page 48: ...1 12 3 1 12 4 H9740SCM1 Main 1 9 Schematic Diagram VCR Section ...
Page 50: ...Main 3 9 Schematic Diagram VCR Section 1 12 7 1 12 8 H9740SCM3 ...
Page 51: ...Main 4 9 Schematic Diagram VCR Section 1 12 9 1 12 10 H9740SCM4 ...
Page 52: ...1 12 11 1 12 12 H9740SCM5 Main 5 9 Schematic Diagram VCR Section ...
Page 53: ...Main 6 9 Schematic Diagram VCR Section 1 12 13 1 12 14 H9740SCM6 ...
Page 54: ...Main 7 9 DVD Open Close Schematic Diagrams VCR Section 1 12 15 1 12 16 H9740SCM7 ...
Page 55: ...Main 8 9 Schematic Diagram VCR Section 1 12 17 1 12 18 H9740SCM8 ...
Page 56: ...1 12 19 1 12 20 H9740SCM9 Main 9 9 Schematic Diagram VCR Section ...
Page 58: ...Jack A Schematic Diagram 1 12 23 1 12 24 H9740SCJ ...
Page 59: ...AFV Schematic Diagram 1 12 25 1 12 26 H9740SCAFV ...
Page 60: ...1 12 27 1 12 28 H9740SCD1 DVD Main 1 3 Schematic Diagram DVD Section ...
Page 61: ...1 12 29 1 12 30 H9740SCD2 DVD Main 2 3 Schematic Diagram DVD Section ...
Page 69: ...1 12 46 BE5900G04012 1 12 45 DVD MAIN CBA Top View ...
Page 70: ...1 12 47 1 12 48 BE5900G04012 DVD MAIN CBA Bottom View ...