Philips DVP3150V/37 - Page 35

Main 1/8 Schematic Diagram < VCR Section >
E8A20SCM1
1-13-3
“ “ = 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.
IC501 KEY VOLTAGE CHART
0.00 ~ 0.51V POWER OUTPUT
0.51 ~ 0.92V REW CH UP
0.92 ~ 1.27V FF CH DOWN
1.27 ~ 1.61V STOP/EJECT SENS-INH
1.61 ~ 1.98V PLAY --------------
1.98 ~ 2.39V REC --------------
2.39 ~ 2.90V ---------------- --------------
2.90 ~ 3.60V ---------------- --------------
3.60 ~ 4.30V ---------------- --------------
4.30 ~ 5.00V KEY OFF KEY OFF
Pin No.
Voltage
KEY 1 (67 PIN) KEY 2 (66 PIN)
BarthService