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15
15
HCD-DX10/RG4SR/RG20/RG30T
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.
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 portant le numéro
spécifié.
•
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
• Abbreviation
CND : Canadian model
AUS
: Australian model
AR
: Argentina model
SP
: Singapore model
TW
: Taiwan model
MX
: Mexican model
MY
: Malaysia model
E2
: 120V AC Area in E model
E3
: 240V AC Area in E model
E51
: Chilean and Peruvian model
5-1. CIRCUIT BOARD LOCATION
• WAVEFORMS
– MAIN BOARD –
– PANEL BOARD –
– CD BOARD –
MOTOR board
ADDRESS SENSOR board
SENSOR board
DRIVER board
TRANS board
VIDEO OUT board
SPDL board
SUB TRANS board
MAIN board
POWER board
PANEL board
CD board
1
IC751
rf
(XOUT)
4.9Vp-p
59 ns
2
IC102
wf
(XOUT)
3.2Vp-p
222
µ
s
4
IC601
qj
(XTAL 6.0MHz)
4.8Vp-p
167 ns
3
L251
14.1Vp-p
16.6
µ
s
(60.1 kHz)