CFD-V77S
SECTION 6
DIAGRAMS
6-1. CIRCUIT BOARDS LOCATION
— 17 —
— 18 —
— 19 —
— 20 —
6-2. BLOCK DIAGRAM
Note on Printed Wiring Board:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
b
: Pattern from the side which enables seeing.
Note on Schematic Diagrams:
• 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.
•
¢
: internal component.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
H
: adjustment for repair.
•
U
: B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– For MAIN BOARD (1/3) –
no mark : PLAY (TAPE SECTION)
CD STOP
(
) : REC (TAPE SECTION)
– For MAIN BOARD (2/3) –
no mark : CD PLAY
TAPE STOP
– For MAIN BOARD (3/3) –
no mark : FM
(
) : MW
[
] : SW
• 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
E
: PB
a
: REC
J
: CD
• Abbreviation
EA
: Saudi Arabia model
SP
: Singapore model
CEF
: Italian model
CET
: East European and Russian models
BATTERY board
CONNECTOR board
HALF BATTERY board
CD MOTOR board
MAIN board
VOLTAGE
SELECTION
board
FINE TUNING
board
POWER board
VOLUME board
CONTROL board
RECORD SWITCH board
LCD board
MONO ST board
The components identified by mark
!
or dotted
line with mark
!
are critical for safety.
Replace only with part number specified.
VOLTAGE
SELECTION
BOARD
E,EA,SP MODELS
AEP, CEF, CET MODELS
CNB907
3
MONO ST
BOARD
AEP, CEF, CET MODEL
