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HCD-DX60AV/RG70AV
31
31
5-9.
SCHEMATIC DIAGRAM – MAIN Board (2/4) –
• See page 44 for Wavefoms.
• See page 44 for IC Block Diagrams.
IC B/D
MAIN BOARD
(1/4)
2
MAIN BOARD
(4/4)
3
7
6
5
4.9
0.8
0.2
4.9
0.8
0.2
0
0
0.7
0
0
0.7
5.3
2.0
1.4
6.1
0.2
–23.0
0.7
0
–16.3
0.7
–23.0
0.7
–22.9
0.7
0
–15.3
0
10.1
9.6
0.4 10.5
0 0.7
0
9.6
5.0 –23.0
5.0 8.8
4.3
9.1
12.0
0.2 12.0
12.0
0
0
4.9
1.4
2.0
5.3
0.7
0
0.7
0
0.1
1.3
3.3
1.5
7.8
1.6 {1.6} [0]
1.9
1.3
0
0
0
0
1.3
1.4
1.4
3.3
1.3
0.1
0
10.0
10.0
11.0
1.7
4.8
6.5
0.7
1.7
0
1.4
0
5.1
12.0
12.1
0
0
12.1
0
12.1
–6.5
0
–6.5
0
4.9
5.3
–6.5
0.4
0.1
(RG70AV : AEP)
(DX60AV/RG70AV : US)
U
16
u
U
17
u
U
18
u
U
19
u
U
1
u
U
20
u
U
21
u
U
22
u
U
23
u
U
24
u
U
25
u
U
26
u
U
27
u
U
28
u
U
29
u
U
30
u
U
31
u
U
32
u
U
33
u
U
34
u
U
35
u
U
36
u
U
37
u
U
38
u
U
39
u
U
40
u
U
41
u
U
42
u
U
43
u
U
44
u
U
45
u
U
46
u
U
47
u
U
48
u
U
49
u
I
81
i
I
82
i
I
83
i
I
84
i
I
85
i
1
1
R-CH
L-CH
A DECK
(PB HEAD)
R-CH
ERASE
L-CH B DECK
(REC/PB/ERASE HEAD)
Q424, 425
FAN MOTOR DRIVE
Q421, 422
RELAY
DRIVE
Q414
2SC3623 MUTING
Q423
2SC3623A
MUTING
Q201, 202
REC/PB MUTING
Q215, 216
BIAS
SWITCH
Q204
2SC2785
AF AMP
Q207, 208
AMS AMP
Q206
2SC3623A
REC MUTING
Q205
2SC3623A
REC MUTING
Q203
2SC2785
AF AMP
Q209
2SC2001L
BIAS
Q210, 211
REC/PB SWITCHING
IC201
REC/PB EQ AMP
IC201
TA8189N
ALC
GND
REC IN
NF
M/H
GND1
MIX
OUT
PRE
OUT
METAL
OUT
NF
CH1/B
CH1/A
REC
OUT
REC IN
NF
REC
OUT
CG
VCC
TAPE A/
TAPE/B
PRE OUT
METAL
OUT
NF
CH2/B
CH2/A
MAIN BOARD
(2/4)
0.1U/50V
0.047U
0.0047U
0.001U
0.015U
0.022U
0.0022U
Q217, 218
REC/PB
SWITCHING
Q212, 213
REC/PB
SWITCH
0.022U
Q214
REC/PB
SWITCH
0.33U/50V
0.0022U
0.0015U
0.047U
0.0015U
0.018U
0.33U/50V
0.01U
0.018U
Q418, 419
PROTECTOR
0.1U
0.1U
0.1u
0.001U
0.001U
Q416, 417, 420
CURRENT
DETECT
MUTING
DRIVE
+
+
–
–
L
R
R
L
FRONT SPEAKER
IMPEDANCE USE
6-16
Ω
JK401
1
1
M
M
M901
(FAN)
(Page 30)
(Page 33)
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
〈〈
〉〉
: RECORD
Summary of Contents for HCD-DX60AV
Page 22: ...22 HCD DX60AV RG70AV MEMO ...
Page 75: ...75 HCD DX60AV RG70AV MEMO ...