Sony HCD-GTR33 Service Manual page 42

HCD-GTR33/GTR55/GTR77
IC407 R2A15216FP (MAIN Board (2/3))
56 55 54
INDR 1
6 INPUT
INER 2 SELECTOR
(R-CH)
INFR 3
GAMER 4
5
INGAINOUTR
6
RECAR
RECBR 7
SA1 8
SA2 9
+
+
+
10
TRER
TONE
MID1R 11
R
(TRE,
MID2R 12
MID,
BASS1R 13
BASS)
14
BASS2R
15
IC677 SI-8008TM-TLS (MAIN Board (3/3))
ON/OFF
PREG
SOFT
START
OSCILLATOR
COMPARATOR
–
+
–
+
+
ERROR AMP
1
42
53
+
VOCAL CUT
ELECTRICAL
VOLUME
16 17 18 19 20
OVERCURRENT
PROTECTION
LATCH
RESET
&
DRIVER
THERMAL
PROTECTION
REFERENCE
VOLTAGE
2 3 4 5
52 51 50 49 48 47 46
REFERENCE
+
SURROUND OR DPL IN
+
AUTO
MCU
GAIN
INTERFACE
CONTROL
21 22 23 24 25 26
IC252, IC253 NJM4558V-TE2 (MAIN Board (2/3))
IC700 NJM4558V-TE2 (MIC Board)
A OUT 1
A –IN 2
A +IN 3
4
V–
45 44 43
42 INDL
6 INPUT
SELECTOR 41 INEL
(L-CH)
40 INFL
39 GAMEL
38
INGAINOUTL
37
RECAL
36 RECBL
+
+
+
35
TREL
TONE
34 MID1L
L
(TRE,
33 MID2L
MID,
32 BASS1
BASS)
31
BASS2
30 TONEOUTL
ELECTRICAL
29 VOLINL
VOLUME
27 28
V+
8
B OUT
7
6 B –IN
5
B +IN