HCD-MD373
45
45
• Indication of transistor
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• 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.
For printed wiring boards.
Note:
•
X
: parts extracted from the component side.
•
p
: parts mounted on the conductor side.
•
®
: Through hole.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
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 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
E
: PB (TAPE)
d
: PB (TAPE)
G
: REC (DECK B)
J
: CD
c
: CD (digital out)
E
: PB (MD)
j
: REC (MD)
p
: PB (digital out)
l
: REC (dihgital in)
• Abbreviation
AUS
: Australian model.
SP
: Singapore model..
MY
: Malaysia model.
JE
: Tourist model.
HK
: Hong Kong model.
AR
: Argentine model.
CH
:Chinese model.
KR
: korea model.
Note:
The components identified by mark
!
or dotted line with
mark
!
are critical for safety.
Replace only with part number specified.
C
These are omitted
E
B
Q
C
These are omitted
E
B
IC101
#ª
FE
1
2
3
4
WAVEFORMS
– BD ( CD) SECTION –
IC101
%º
XTAI
IC101
%¡
TE
IC101
$¡
FE
– BD (MD) (1/2) SECTION –
1
2
3
4
5
6
7
8
IC101
1
,
2
(I, J) (PLAY mode)
IC101
4
(A) (PLAY mode)
IC101
8
,
9
(E, F) (PLAY mode)
IC121
!§
(OSCI)
IC121
@¶
(LRCK)
IC121
@ª
(FS256)
IC121
@•
(XBCK)
IC121
(º
(FS4)
0.46Vp-p
0.1Vp-p
0.06Vp-p
3.1Vp-p
22.581MHz
3.2Vp-p
44.1kHz
3.8Vp-p
2.822MHz
3.8Vp-p
11.29MHz
3.2Vp-p
176.4kHz
– BD (MD) (2/2) SECTION –
1
2
IC501
!¡
XC-OUT
IC501
!£
X-OUT
– MAIN (3/3) SECTION –
16MHz
5.5Vp-p
32.768kHz
5.2Vp-p
– MD DIGITAL SECTION –
IC316
!£
(XOUT)
1
3.2Vp-p
10MHz
3.1Vp-p
16.9MHz
1.2Vp-p
(PLAY)
2.5V
APPROX 200m Vp-p (PLAY)
2.5V
APPROX 500mVp-p (PLAY)
7.5
µ
sec
2.4Vp-p
IC101
@§
MDP
5
Summary of Contents for HCD-MD373
Page 17: ...17 This section is extracted from instruction manual ...
Page 18: ...18 ...
Page 58: ...HCD MD373 58 58 6 16 SCHEMATIC DIAGRAM AMP SECTION Page 51 Page 62 ...
Page 60: ...HCD MD373 60 60 6 18 SCHEMATIC DIAGRAM PANEL SECTION Page 55 ...
Page 62: ...HCD MD373 62 62 6 20 SCHEMATIC DIAGRAM POWER SECTION Page 58 Page 54 ...
Page 97: ...HCD MD373 97 MEMO ...