Technics SA-EH790E, Service Manual

Page: 51 / 55

1
CS
8
CN202
2
3
4
5
6
7
9
12
13
14
15
16
17
18
CD REQ
CT.GND
+B(10V)
D.GND
SCLK
DATA
11
10 V.GND
A.GND
NC
To CD CHANGER
& CASSETTE DECK
BLOCK DIAGRAM
TAPE Rch OUT
RS
A.GND
SYNC
+B1
DECK
REQ
TAPE Rch IN
TAPE Lch IN
CD Rch IN
Rch
Rch
Q603,
604
Q602
Rch
19
20 NC
SH
SYNC
22 23
X601
(4MHz)
XI
N
X
OUT
MCU I/F
13
+B5
D606
12 14
SELECTOR
PEAK HOLD
I REF
GEN.
V REF
GEN.
Vcc/2
GEN.
1
Vcc2
VREF
IREF
DIF
OUT
C
OUT
CNF
A
OUT
ANF
A
B C ENB
GND1
PH
OUT
GND2
15
16
2 3 4 5 6 7 8
11 10
M62457AFPE1
IC602
SPE. ANALYZER AMP
SPINP
TAPE Lch OUT
CD Lch IN
SW CONT.
12
X0
Z1
Z0
14
A B C
11 10 9
STIA
V
G
8
X1
13
5
3
4
BU4053BCFE2
IC203
SIGNAL SELECTOR
NJU7313AMT2
IC201
SIGNAL SELECTOR
LEVEL SHIFT
LATCH CIRCUIT
SHIFT REGISTER
2
(29)
3
(28)
4
(27)
5
(26)
7
(24)
8
(23)
14
16
17
ST
CK
DATA
9
(22)
6
(25)
X1
X2
ST
CLK
DA
1
30
-B1
+B4
15
V
EE
V
DD
V
SS
12
(19)
11
(20)
10
(21)
X3
X4
AUX
(DVD)
VCR
(EXT)
IN
OUT
NJM4558MTE1
IC202
CCHMIC
REC
L
MIC
REC
L1
CD
REQ
CD&
DECK
CS
CD&DECK
CK
CD&DECK
DI
CD&DECK
DO
DECK
REQ
SYNC
95
DECK
REQ
CD&DECK
DO
91 90
CD&DECK
DI
96
CD&DECK
CS
92
CD&DECK
CK
94
CD
REQ
C2BBGF000434
IC601
SYSTEM CONTROL / FL DRIVE
KEY SWITCH
(S601~613)
1
KEY1
KEY2
2
FL601
FL DISPLAY
82~88
1G~7G
47~80
P1~P34
D652,654,
655
99
REG
IN0
FL1
FL2
D609
D610
89
V
EE
32
SYNC
4
SP
A
5
SP
B
6
SP
C
SP
IN
3
SYNC
CD
REQ
CD&DECK
CS
CD&DECK
CK
CD&DECK
DI
CD&DECK
DO
DECK
REQ
SP
A
SP
B
SP
C
SP
IN
SP
A
SP
B
SP
C
SP
IN
S614
(MULTI
JOG)
15 16
JOG
B
JOG
A
V
DD
16
+B4
INTERFACE
INTERFACE
+B4 -B1
BUFFER
AMP
V
SS
7
-B1
C
OUT
TU
LIC
CENTER
A
V
I6CH
X5
X6
X8
X7
DVD 6ch
INPUT
SPINP
RESET
Q601
+B5
18
RESET
100
REG
IN1
SH-EH790(E) BLOCK DIAGRAM
Vcc
9