Sony PMC-MD55 - Md Boombox, Service Manual

Page: 169 / 220

PMC-MD55
– 97 – – 98 –
6-28. SCHEMATIC DIAGRAM – SUPER WOOFER Section – •
See page 107 for IC Block Diagram.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω
and 1 /
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : SIGNAL IN (POWER ON)
(
) : STANDBY
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: FM
• Abbreviation
CND : Canadian model
Note:
The components identi-
fied by mark
0
or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
(Page 78)