Philips DVD757VR /00, Руководство по обслуживанию

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Main 1/11 Schematic Diagram < VCR Section >
1-11-3
1-11-4
H9520SCM1
“ “ = SMD
THE SAME VOLTAGE FOR BOTH
PLAY, REC & DVD MODES.
INDICATES THAT THE VOLTAGE
IS NOT CONSISTENT HERE.
PLAY MODE
REC MODE
1
2
3
5.0 5.0
(2.5)
<5.0>
~
DVD MODE
IC501 KEY VOLTAGE CHART
0.00 ~ 0.51V REC/OTR -------------------
0.51 ~ 0.92V POWER -------------------
0.92 ~ 1.27V OUT-PUT PLAY
1.27 ~ 1.61V ------------------- -------------------
1.61 ~ 1.98V ------------------- -------------------
1.98 ~ 2.39V ------------------- S-INH
2.39 ~ 2.90V ------------------- -------------------
2.90 ~ 3.60V ------------------- -------------------
DIRECT
DUBBING
4.30 ~ 5.00V KEY OFF KEY OFF
KEY 1 (7 PIN) KEY 2 (8 PIN)
3.60 ~ 4.30V -------------------
Comparison Chart of
Models and Marks
MODEL MARK
DVD757VR/00 A
DVD757VR/05 B
DVD757VR/02 C