SRF-HM01V - Sony Audio Service Manual (repair manual). Page 9

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SRF-HM01V
10
10
4-2.
BLOCK  DIAGRAM  – MAIN Section –
27
IN-L
26
NF-L
+
28
IN-R
29
NF-R
+
A
LOUT
ROUT
1
2
VOL
AGC
DET
+
22
OUT-L
20
OUT-R
21
OUT-C
32
IN-C
33
BST OUT
35
AGC IN
SP1
(HEADPHONE)
L
SP2
(HEADPHONE)
R
19
VCC
18
BASE
17
RFOUT
RIPPLE
FILTER
RIPPLE
FILTER
Q103
DC/DC
CONVERTER
Q201, 202, T201
VT
LOW-PASS
FILTER
CIRCUIT
B+
D201
RESET SIGNAL
GENERATOR
IC303
27
VDD
39
VDD
34
POWER SW
42
POWER ON2
28
BEEP
54
RESET
B+ SWITCH
Q303
BATT2
PAS
SECONDARY
BATTERY
(SL-621-F11N)
D301
43
BST SW
42
PW SW
41
MT SW
SWITCH
31
MUTE
51
POWER ON1
D302
35
INT1
BATTERY
VOLTAGE
DETECT
IC302
MEGA BASS
ON/OFF
SWITCH
Q101
MEGA BASS
CONTROL
SWITCH
Q102
MEGA BASS
ON/OFF
SWITCH
Q104
29
MEGA BASS
POWER
S401
ON
OFF
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION R03)
1PC.  1.5V
23 
 25
KR1 
 KR3
21, 22
KS1, KS2
S301 
 306
 4
COM1 
 COM2
LIQUID CRYSTAL
DISPLAY
LCD1
 15
S1
 S11
56 XIN
55 XOUT
X301
7.5kHz
SYSTEM CONTROLLER
IC301 (2/2)
AUDIO MASTER AMP
IC201
SIGNAL PATH
: FM/TV (2 
 6ch)
RV101
TUNER
TUNER CIRCUIT
B+
(Page 9)
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