19
19
HCD-CP300
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
W
: indicates side identified with part number.
•
: Pattern from the side which enables seeing.
• Indication of transistor.
Note on Schematic Diagram:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• 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
: TUNER
E
: TAPE PLAY (DECK A)
d
: TAPE PLAY (DECK B)
G
: TAPE REC
J
: CD PLAY (ANALOG)
c
: CD PLAY (DIGITAL)
• Abbreviation
CND : Canadian model
EA
: Saudi Arabia model
MX
: Mexican model
SP
: Singapore model
MY
: Malaysia model
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q
• CIRCUIT BOARDS LOCATION
POWER board
JACK board
TUNER UNIT
MAIN board
TRAY SENSOR board
DRIVER board
MOTOR board
H/P board
CONTROL board
DISK SENSOR board
IN OUT SW board
TC board
CD board
LED board
LCD board
• WAVEFORMS
6-3. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
4
IC101
wh
(MDP)
2
IC101
ra
(TE)(CD Play mode)
5
IC101
yh
(XTAI)
1
IC101
ta
(RFAC)(CD Play mode)
3
IC101
el
(FE)(CD Play mode)
2.5 Vp-p
7.5
µ
s
0.3 Vp-p
0.4 Vp-p
1.1 Vp-p
3 Vp-p
16.9344 MHz
1
IC601
qa
3.0Vp-p
32.768kHz
4.2Vp-p
2
IC601
qd
3
IC603
qd
(XI)(FM Mode)
(AEP, UK only)
4
IC603
qh
(RCLK)
(FM Mode)(AEP, UK only)
16MHz
2.4 Vp-p
4.332 MHz
5 Vp-p
840
µ
s
44 Vp-p
11.9
µ
s
1
ERASE Head(REC Mode)
2
REC/PB(REC Mode)
51.2 Vp-p
12
µ
s
CD SECTION
MAIN SECTION
TC SECTION