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Main 1/8 Schematic Diagram < VCR Section >
"
" = SMD
Voltage indications for PLAY, REC and DVD modes
on the Schematic Diagrams are as shown below:
The same voltage for
PLAY, REC & DVD modes.
PLAY mode
1
2
3
5.0
~
REC mode
5.0
(2.5)
DVD mode
<
>
0
Indicates that the voltage
is not consistent here.
1-13-3
IC501 KEY VOLTAGE CHART
Pin No.
KEY 1 (7 PIN)
KEY 2 (8 PIN)
Voltage
0.00 ~ 0.51V
REC/OTR
--------------
0.51 ~ 0.92V
----------------
STOP/EJECT
OUTPUT-SELECT
0.92 ~ 1.27V
PLAY
1.27 ~ 1.61V
----------------
REW
1.61 ~ 1.98V
----------------
FF
1.98 ~ 2.39V
CH-UP
SENS-INH
2.39 ~ 2.90V
CH-DOWN
--------------
2.90 ~ 3.60V
----------------
--------------
3.60 ~ 4.30V
DIRECT DUBBING
--------------
4.30 ~ 5.00V
KEY OFF
KEY OFF
H9923SCM1
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