2121
HCD-BX3/DX3
SECTION 7
DIAGRAMS
7-1. CIRCUIT BOARD LOCATION
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.
•
¢
: 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 ! or dotted
line with mark ! are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
• U : B+ Line.
• V : 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 MΩ).
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 (DECK A)
d : PB (DECK B)
G : REC (DECK B)
J : CD
c : digital out
• Abbreviation
CND : Canadian model
AUS : Australian model
G : German model
AED : North European model
EA : Saudi Arabia model
MY : Malaysia model
SP : Singapore model
TH : Thai model
TW : Taiwan model
KR : Korea model
MX : Mexican model
AR : Argentina model
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.
CE
Q
• WAVEFORMS
PANEL Board
LEAF SW Board
HEAD (A) Board
HEAD (B) Board
TRANS Board
SUB-TRANS Board
BD Board
DRIVER Board
MOTOR Board
ADDRESS SENSOR Board
MAIN Boar
AMP Board
1 T301 4 REC MODE
135Vp-p
81kHz
2 IC401 qd STOP MODE
3 IC401 qa STOP MODE
4.0Vp-p
16.0MHz
3.0Vp-p
32.768kHz
1 IC601 oa STOP MODE
5.2Vp-p
12.5MHz
– MAIN BOARD –– PANEL BOARD –
1 IC101 yj
CD PLAY MODE
6.4Vp-p
16.9344MHz
1.2Vp-p
2 IC101 ta
CD PLAY MODE
3 IC101 ra
CD PLAY MODE
4 IC101 el
CD PLAY MODE
400nsec/div
approx 200mVp-p
approx 170mVp-p
– BD BOARD –
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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