Circuit Boards Location - Sony HCD-GX90D Service Manual

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6-2. Circuit Boards Location

SUB TRANSFORMER board
TRANSFORMER board
PANEL board
REMOTE board
SUB PANEL board
MOTOR board
DIODE board
SENSOR board
REG board
MAIN board
TC board
DRIVER board
RF board
MB board
VIDEO board
SURROUND board
FRONT AMP board
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
1
/
W or less unless otherwise
4
specified.
: internal component.
f
• 5 : fusible resistor.
• C : panel designation.
Note:
Note:
The components identi-
Les composants identifiés par
fied by mark 0 or dotted
une marque 0 sont critiques
line with mark 0 are criti-
pour la sécurité.
cal for safety.
Ne les remplacer que par une
Replace only with part
piéce por tant le numéro
spécifié.
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.
• 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)
c : digital out
g : MD (VIDEO)
• Abbreviation
CND : Canadian model
25
25
HCD-GX90D/RV800
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
: Pattern from the side which enables seeing.
• Indication of transistor.
C
Q
These are omitted.
B
E
B
C E
These are omitted.

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