Sharp HT-M700H, Service Manual

Page: 19 / 112

HT-M700H
4 – 8
1 2 3
1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9
10 11 12
3
2
1
AC
POWER
SUPPLY
CORD
AC
230
V,
50
Hz
3.3Vac
-28V
5V
33V
14V
GND
Feb
SS
Vcc
Drain
3
1
2
12V
(R)
3.
3V
+12V
A
AGND -12V
A
DGND 5V
D
P-
C
O
N
P
-CON(
L)
5V
33V
_
AGND
K
A
33V
12V
(R)
-12V
(S
)
5V
3.
4V
-28V
3.
3V
ac
A
3.
3V
ac
B
-28V DGND 3.
3V
ac
A
3.
3V
ac
B
DGND AGND
DGND
38V
GND
3
C
4
OUT
2
IN
1
5.
6V
Out-A
1
Inv-In-A
2
Non-Inv-A
Inv-In-B
3
Gnd
4
Non-Inv-B
5 6
Out-B
7
Vcc
8
5V
6_
Vin
3
GND
2
Vout
1
I-
DETEC(
L
)
Over
current-Con
RADI
O
-S
L
T
(H
)
RADI
O
-S
L
T
(H
)
1 2
MVC
C
MGND
1 2
1 2 3
5.6V GND
GND 12V GND
U01
KA78L05B
VOLTAGE
REGULATOR
L001 L002
IC001
KA10880
SWITCH POWER IC
T1
MAIN POWER
TRANSFORMER
Q3B
Q2B
Q6B
ZD3
T01
SUB POWER
TRANSFORMER
IC002
KP1010
PJOTOTUBE
IC003
AZ431BZ or
LM431SG
MANOSTAT
Q5B
Q4B
ZD2
U1B
AZ1084
TRANSFORM
U2B
KA78L12
TRANSFORM
IC1
LA358
BUFFER
AMP.
Q1B
Q7B
Figure 4-8 BLOCK DIAGRAM (8/14)