E8B23SCM1
Main 1/7 Schematic Diagram < VCR Section >
“ “ = SMD
PLAY mode
REC mode
DVD mode
Voltage indications for PLAY, REC and DVD modes
on the Schematic Diagrams are as shown below:
1
2
3
5.0
(2.5)
<
0
>
~
5.0
The same voltage for
PLAY, REC & DVD modes.
Indicates that the voltage
is not consistent here.
1-13-3
IC501 KEY VOLTAGE CHART
0.00 ~ 0.51V
POWER
STOP/EJECT
0.51 ~ 0.92V
CH-DOWN
REW
0.92 ~ 1.27V
CH-UP
PLAY
1.27 ~ 1.61V
----------------
FF
1.61 ~ 1.98V
----------------
--------------
1.98 ~ 2.39V
REC/OTR
OUTPUT SELECT
2.39 ~ 2.90V
----------------
--------------
2.90 ~ 3.60V
SENS-INH
--------------
3.60 ~ 4.30V
----------------
--------------
4.30 ~ 5.00V
KEY OFF
KEY OFF
Pin No.
Voltage
KEY 1 (7 PIN)
KEY 2 (8 PIN)