2828
HCD-DV2D
HCD-DV2D
7-4. SCHEMATIC DIAGRAM — MAIN SECTION —
• See page 41, 42 for IC Block Diagrams. • See page 40 for Waveforms. • See page 45 for IC Pin Function Description.
12
3
KEY
BOARD
CN601
A
(Page 33)
AMP BOARD
CN108(Page 37)
H
IC B/D
IC B/D
NO.
VOLTAGE CHART
IC501
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
VOLT
4.9
4.9
4.9
0
0
0
0
0
–
5.0
0
0
0
4.8
0
0
NO.
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
VOLT
4.9
0
0.3
0
0.2
4.9
0.2
5.1
–
5.0
5.0
5.0
2.8
3.8
3.8
0.4
NO.
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
VOLT
4.9
5.0
0
5.0
3.3
2.4
0
3.0
2.8
–
0
4.9
4.9
0
4.9
3.2
NO.
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
VOLT
3.4
4.8
0.3
0
4.9
4.9
0
0
4.9
0
4.9
0
0
4.9
4.9
4.9
-32.4
-32.9
-38.6
NO MARK : FM
< > :TAPE REC
4.5
0
8.8
17.0
10.8
11.0
9.9
16.3
17.8
18.0
0
17.8
5.1
5.1
0
0
0.7
5.0
5.0
5.0
5.0
9.9
2.6
0
4.9
0
0
0
0.6
0.6
0
0.3
12.4
0
4.9
12.3
0
12.4
12.4
0
0
5.0
0.3
11.3
5.7
10.6
10.3
0.2
0.7
0.7
0.6
0
5.0
5.0
4.9
5.0
4.9
4.2
4.9
4.9
2.6<-7.0>
2.6
<-7.0>
2.6
<-7.0>
0<0>
0<0>
0<0>
0<0>
0<0>
0<-14.9>
0<-14.9>
0<-14.9>
0<-0.7>
0<-0.7>
2.9<-11.1>
2.9
<0>
2.9
<-0.7>
2.9
<0>
9.6<2.7>
9.5 <0.4>
9.6<2.2>
9.6
<9.0>
9.6
<9.0>
9.5
<2.3>
0<0.8>
0
0.7
0
0.7
1.7 <0.8>
0
0
0
0
1.2
2.2
1.7
2.3
1.2
00
1.2
2.0
7.1
1.4
2.0
1.2
0
0
0
0.7<0>
0.7
<0>
0
5.0
5.0
5.0
0
5.0
5.0
4.9
4.9
4.3
4.3
4.3
4.3
5.0
5.0
0
DOWNLOAD
PORT
MPEG
BOARD
J701
TO TUNER PACK
AMP BOARD
CN102(Page 37)
AMP BOARD
CN106
SPEAKER
IMPEDANCE
USE 6Ω
POWER BOARD
FW901
MPEG BOARD J702
IC501
IC503
IC502
IC101
IC201
IC301
IC102
B
C
D
E
I
TV IN
+
L
R
–
–
+
MAIN BOARD
HEAD
(PLAYBACK/ERASE)
L-CH
R-CH
ERASE
HEAD
(Page 37)
REC/PB
HEAD
(Page 31)
(Page 31)
(Page 38):
E2, E3, E51, SP, TW MODEL
(Page 39):
US,CND MODEL
(SUPPLEMENT-1:Page 4):
AEP,UK,RU,KR,AUS MODEL
SYSTEM CONTROLLER
RESET SWITCH
EPROM
TAPE REC/PB AMP
MUTE
MUTE
Q215
REC DETECT
REC/PB SWITCH
Q201-Q205
REC/PB SWITCH
REC/PB SWITCH
Q212, Q213
BIAS OSC
Q210, Q211
MUTE
INVERTER
AEP, UK, RU Model
+9V REG
SWITCH
LED DRIVE
Q504-506
+5V REG
SWITCH
+5V REG
SWITCH
CURRENT
DETECT
+10V REG
+9V REG
-33V REG
RELAY DRIVE
MUTE SWITCH
SWITCH
POWER
CONTROL
POWER
CONTROL
MIXER AMP
SOUND PROCESSOR
∗∗
R581
1.2k:AEP,UK
2.7k:SP,KR,TW
4.7k:US,CND,E2,E51
10k:RU
24k:AUS,E3
BA15218F-E2
Ver. 1.3
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