42
42
HCD-HP8V
8-11. Schematic Diagram — Main Section —
• See page 49 for IC Block Diagrams. • See page 29 for Waveforms.
4.7
4.7
4.6
4.6
4.6
4.7
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.7
4.6
4.7
0
4.7
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6 4.7
4.6
4.6
4.6
4.7
4.7
4.6
9.2
0.1
0.7
0
0.7
9.2
0.7
0.7
0.7
0.7
9.9
0
0
0.1
10
4
4.2
8.4
-37.5
-27
0
9.9
0
4.7
4.6
4.3
-26.5
0
0
0
0
0
7.5
1.3
0
2.5
9.2
0
9.9
0.6
4.7
9.2
0
0
0
0
9.9
0
9.9
0
0.1
0
0
0
0
9.2
15.6
10
16.6
4.6
7
0.6
0.5
0.5
0.6
3.0
3.0
3.7
3.7
3.7
0.6
3.7
3.7
3.7
0.6
0
0
3.0
3.0
3.8
3.8
3.8
3.2
0.1
3.3
3.2
3.2
3.3
3.3
3.3
3.3
0
0
0
0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0
0.7
0.2
0.7
0
0.7
9.9
9.2
9.9
10
10
10
10
10
10
0
0
0
0
No mark:FM
-3.4
-3.4
-3.4
0
-3.4
-3.4
0
5
0.1
8.2
7.6
8.2
0.7
8.4
*
*
*
*
*
*
*
TO
VMP
BOARD
CN201
(Page 37)
A
TO
PANEL
BOARD
CN602
(Page 44)
C
B
0
TO
CONNECTOR BOARD
CN701
(Page 40)
HEAD
R-CH
EH
REC/PB
L-CH
ERASE
(REC/PB/ERASE)
JK301
IN
R
L
IC301
IC401
SOUND
IC201
PB/REC EQ AMP
PROCESSOR
+10V REG
IC402
+4V REG
IC403
IC404
+10V REG
+5V REG
Q401,402
B+ SWITCH
IC302
I/O EXPANDER
OUT
R
L
MD
ANTENNA
AM
DBFB
MUTE CONT
MUTE
MUTE
DBFB
MUTE
MUTE
SWITCH
SWITCH
SWITCH
SWITCH
SWITCH
Q201-204
BIAS
-VFL REG
POWER CONTROL
RELAY DRIVE
Q304,305
MUTE
Q306,307
MUTE
Q406,407
T SOL DRIIVE
CONT
Q408,409
MOTOR
DRIVE
BIAS OSC
FM75
Ω
COAXIAL
8P
TAPE
MECHANISM
DECK
TO
PWR AMP
BOARD
CN501 (Page 46)
F
TO
PANEL
BOARD
CN603 (Page 44)
D
TO
PWR TRANS
BOARD
CN907 (Page 46)
G
TO
PANEL
BOARD
CN601 (Page 44)
E
TO
PANEL
BOARD
CN004 (Page 44)
H
0
0
MAIN BOARD
JACK
BOARD
VIDEO
OUT
Q309-311
MUTE
TO
VMP
BOARD
CN301
(Page 37)
I
0.015
0.015
0.015
0.0022
0.047
C307
R355 4.7V
4.7U 50V
4.7K
0.022
TA7810S
1000
TA7810S
UPC3504AHF
0
0.0027
2SD1306NETL
2SD1306NETL
0.047
0.047
0.047
0.082
0.022
0.022
0.082
1K
470P
0.0027(M)
0.022
0.022
0.0022
0.047
0.015
0.015
0.0047
0.0022
0.0022
37P
5P
9P
0
4P
13P
0
0
0
19P
9P
4P
27P
16V
1/2W
UDZSTE-
175.6B
UDZSTE-
1727B
1/2W
25V
C422
0.1u
C423
0.1u
C420
6800U 6.3V
1K
1000P
2SD1306NETL
2SD1306NETL
0.1
470
470
CN101
11P
100K
100K
