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HCD-DV2D
www.freeservicemanuals.info
Ver. 1.3
7-4. SCHEMATIC DIAGRAM — MAIN SECTION —
MAIN BOARD
A
KEY
BOARD
CN601
(Page 33)
4.9
SWITCH
4.2
DOWNLOAD
PORT
B
MPEG
BOARD
J701
(Page 31)
Q201-Q205
REC/PB SWITCH
2.6<-7.0>
HEAD
2.6
0<-14.9>
(PLAYBACK/ERASE)
<-7.0>
0<0>
L-CH
REC/PB
HEAD
2.6
R-CH
<-7.0>
ERASE
HEAD
2.9<-11.1>
2.9
2.9
2.9
<0>
<0>
<-0.7>
REC/PB SWITCH
REC/PB SWITCH
3
Q212, Q213
BIAS OSC
9.6
9.5
<9.0>
<2.3>
0<0.8>
9.6
<9.0>
∗∗
1.2k:AEP,UK
R581
2.7k:SP,KR,TW
4.7k:US,CND,E2,E51
10k:RU
24k:AUS,E3
HCD-DV2D
• See page 41, 42 for IC Block Diagrams. • See page 40 for Waveforms. • See page 45 for IC Pin Function Description.
TO TUNER PACK
AEP, UK, RU Model
0.3
+9V REG
12.4
0
12.4
0
0
SWITCH
INVERTER
12.4
0
Q504-506
+5V REG
0.2
10.6 10.3
IC501
SYSTEM CONTROLLER
1
2
4.9
IC502
IC503
EPROM
RESET SWITCH
Q210, Q211
MUTE
IC B/D
0
0
1.2
1.2
2.0
2.2
0
0
1.7
1.4
0.7<0>
7.1
0.7
1.7 <0.8>
<0>
2.0
2.3
0
1.2
1.2
0
0
0
0
0
Q215
REC DETECT
IC201
TAPE REC/PB AMP
MUTE
0.7
0.7
MUTE
0
0
VOLTAGE CHART
IC501
NO.
VOLT
NO.
VOLT
NO.
VOLT
NO.
VOLT
1
4.9
17
4.9
33
4.9
49
3.4
2
4.9
18
0
34
5.0
50
4.8
3
4.9
19
0.3
35
0
51
0.3
4
0
20
0
36
5.0
52
0
5
0
21
0.2
37
3.3
53
4.9
6
0
22
4.9
38
2.4
54
4.9
7
0
23
0.2
39
0
55
0
8
0
24
5.1
40
3.0
56
0
9
–
25
–
41
2.8
57
4.9
10
5.0
26
5.0
42
–
58
0
11
0
27
5.0
43
0
59
4.9
12
0
28
5.0
44
4.9
60
0
13
0
29
2.8
45
4.9
61
0
14
4.8
30
3.8
46
0
62
4.9
15
0
31
3.8
47
4.9
63
4.9
16
0
32
0.4
48
3.2
64
4.9
TV IN
5.0
4.9
4.9
0
IC101
SOUND PROCESSOR
5.0
5.0
IC B/D
5.0
0
5.0
5.0
5.0
BA15218F-E2
9.9
5.0
IC301
+5V REG
5.1
17.8
5.1
0
0
0.7
SWITCH
C
MPEG BOARD J702
(Page 31)
Published in Heiloo Holland
28
28
AMP BOARD
H
CN108(Page 37)
2.6
0
MUTE SWITCH
0
POWER
CONTROL
4.9
0.6
0
0.6
IC102
0
SWITCH
POWER
MIXER AMP
CONTROL
9.9
11.0
17.0
16.3
8.8
10.8
18.0
CURRENT
DETECT
17.8
0
07/11/2016
AMP BOARD
I
CN102(Page 37)
E
AMP BOARD
CN106
(Page 37)
+
L
SPEAKER
–
IMPEDANCE
–
R
USE 6Ω
+
D
POWER BOARD
FW901
(Page 38):
E2, E3, E51, SP, TW MODEL
(Page 39):
US,CND MODEL
-32.9
(SUPPLEMENT-1:Page 4):
AEP,UK,RU,KR,AUS MODEL
-32.4
-33V REG
-38.6
RELAY DRIVE
0
4.5
NO MARK : FM
<
> :TAPE REC
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