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19
19
HCD-RG110
SECTION 5
DIAGRAMS
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
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
b
: Pattern from the side which enables seeing.
• Indication of transistor.
•
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 M
Ω
).
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
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
J
: CD
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
5-1. Circuit Boards Location
• Waveforms
KEYBOARD board
PANEL board
SUB TRANS board
MAIN board
CD board
TRANS board
VIDEO OUT board
POWER board
DRIVER board
MOTOR board
SPDL board
ADDRESS SENSOR board
REM board
5
Q209 Collector
(TAPE REC mode)
2
IC601
qd
(XT2)
1
IC751
rf
(XOUT)
4
IC102
ws
(XOUT)
2 V/DIV, 100 ns/DIV
5 V/DIV, 10 s/DIV
2 V/DIV, 10 s/DIV
2 V/DIV, 20 ns/DIV
3
IC601
qh
(CF2)
2 V/DIV, 40 ns/DIV
6
IC103
qf
(XO)
1 V/DIV, 100 ns/DIV
5.2 Vp-p
5.6 Vp-p
59 ns
222 ns
30.5 s
4.9 Vp-p
100 ns
5.0 Vp-p
13.5 Vp-p
17 s
231 ns
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.