17
17
CFD-G55
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. p: pF.
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.
•
f
: internal component.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
H
: adjustment for repair.
• Total current is measured with no cassette installed.
• Power voltage is dc 12 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.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
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
a
: REC
J
: CD
d
: LINE IN
• Abbreviation
CND : Canadian model.
MY
: Malaysia model.
SP
: Singapore model.
E92
: Chilean and Peruvian model.
MX
: Mexican model.
• WAVEFORMS
– TUNER Section –
SECTION 5
DIAGRAMS
5-1. Circuit Boards Location
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
1
IC2
w;
(XOUT)
1.4 Vp-p
13.3
µ
s
500 mV/DIV, 4
µ
s/DIV
– TC Section –
2
Q301 collector (TAPE REC)
3.1 Vp-p
18
µ
s
1 V/DIV, 10
µ
s/DIV
– CD Section –
3
IC701
rk
(XOUT)
4.2 Vp-p
59 ns
1 V/DIV, 20 ns/DIV
– MAIN Section –
4
IC801
ua
(XT2)
3.6 Vp-p
30.5
µ
s
1 V/DIV, 10
µ
s/DIV
5
IC801
ug
(X2)
3.7 Vp-p
238 ns
1 V/DIV, 100 ns/DIV
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
piéce por tant le numéro
spécifié.
BATT board
CD board
PDW board
MAIN board
L-R/REG board
TC board
TRANS board
LCD board
BATT COM board
POWER board
TUNER board
HEADPHONE board
CONTROL (CD) board
CONTROL (POWER) board
CONTROL (VOL) board
Summary of Contents for CFD-G55 - Cd Radio Cassette-corder
Page 26: ...26 26 CFD G55 5 10 Schematic Diagram MAIN Section 1 2 See page 34 for IC Block Diagrams ...
Page 29: ...29 29 CFD G55 5 13 Schematic Diagram AMP Section ...
Page 31: ...31 31 CFD G55 5 15 Schematic Diagram CONTROL Section ...
Page 33: ...33 33 CFD G55 5 17 Schematic Diagram POWER Section ...
Page 53: ...53 CFD G55 MEMO ...
