Diagrams - Sony HCD-VX222 Service Manual

HCD-VX222
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
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
specified.
• : internal component.
¢
• C : panel designation.
Note:
The components identified by mark ! or
dotted line with mark ! are critical for
safety.
Replace only with part number specified.
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
no mark : FM
( ) : CD
[ ] : TAPE
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: AM
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
J
: CD
c : digital out
• Abbreviation
SP : Singapore model
TH : Thai model
EA : Saudi Arabia model
TW : Taiwan model
IA : Indonesian model
E91 : 200VAC model
20
SECTION 6

DIAGRAMS

1
/ W or less unless otherwise
4
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• b : Pattern from the side which enables seeing.
• Indication of transistor.
These are omitted.
B
Q
B C E
These are omitted.
• Abbreviation
SP : Singapore model
TH : Thai model
EA : Saudi Arabia model
TW : Taiwan model
IA : Indonesian model
E91 : 200VAC model
C
Q
E