Sony HCD-GTX88 / HCD-GTX88BP Service Manual ▷ View online
65
HCD-GTX88/GTX88BP
IC201 M61530FP-D60G (MAIN Board (2/4))
3
SL EXTIN
SL VOL
INPUT SW
SL-CH
VOLUME
FR-CH
LPF AMP
FR INPUT
GAIN CONTROL
1
FR LPFOUT
2
FR LPF IN
FL-CH
LPF AMP
FL INPUT
GAIN
CONTROL
42 FL LPFOUT
41 FL LPF IN
R-CH
LPF AMP
40 R LPF IN
39 R LPF OUT
4
SL VOL IN
7
SR EXTIN
SR VOL
INPUT SW
SR-CH
VOLUME
SL-CH
LPF AMP
5
SL LPFOUT
6
SL LPF IN
SR-CH
LPF AMP
VREF
AMP
FL OUTPUT
SW
FR OUTPUT
SW
9
SR LPFOUT
10
SR LPF IN
C-CH
LPF AMP
12
C LPFOUT
13
C LPF IN
15
SW IN
16
VCC
17
DATA
18
CLOCK
19
GND
20
TEST
21
AGC SW
11
C VOL IN
8
SR VOL IN
C-CH
VOLUME
14
LFE VOL IN
LFE-CH
VOLUME
SWMIX
SW
LFE-MIX
SW
SW OUTPUT
GAIN CONTROL
SW-CH
LPF AMP
µ
-CON
I/F
AGC
L-CH
LPF AMP
37 L LPF IN
36 REF IN
35 REF OUT
34 FL OUT
32 FR OUT
33 FR IN
38 L LPF OUT
BUS BOOST
ON/OFF SW
BUS BOOST
ON/OFF SW
30
31 SL BB1
SL BB2
SL OUT
29
27 SR BB2
28 SR BB1
26 SR OUT
25 C OUT
24 SW OUT
23 SW LPF IN
22 LPF OUT
OFF
ON
BUS BOOST
BUS BOOST
66
HCD-GTX88/GTX88BP
IC563 BU4052BCF-E2 (MAIN Board (2/4))
IC564 BU4052BCF-E2 (MAIN Board (2/4))
IC564 BU4052BCF-E2 (MAIN Board (2/4))
IC566 TC74HC4066AFT(EL) (MAIN Board (2/4))
IC567 TC74HC4066AFT(EL) (MAIN Board (2/4))
IC567 TC74HC4066AFT(EL) (MAIN Board (2/4))
IC568 TC74VHC157FT(EKJ) (MAIN Board (2/4))
1
Y0
2
Y2
3
Y
4
Y3
5
Y1
15
X2
14
X1
13
X
12
X0
11
X3
10
A
9
B
16
VDD
6
INH
7
VEE
8
VSS
BINARY TO 1 OF 4
DECODER WITH INHIBIT
LEVEL
CONVERTER
1I/O
VCC
1
14
1C
13
4C
12
4I/O
11
4O/I
10
1O/I 2
2O/I 3
2I/O 4
2C 5
3C 6
GND 7
3O/I
9
3I/O
8
SELECT 11
1
1A
2
3
4
5
6
7
INPUT
INPUT
OUTPUT
OUTPUT
1A
1B
1Y
2A
2B
2Y
1B
1Y
2A
2B
2Y
GND 8
V
CC
STROBE
16
4A
15
14
13
11
12
11
10
INPUT
INPUT
OUTPUT
OUTPUT
G
4B
4Y
3A
4A
4B
4Y
3A
3B
9
3B
3Y
3Y
S
67
HCD-GTX88/GTX88BP
IC301 HA12237F (MAIN Board (3/4))
IC550 RT8H015C-T112-1 (MAIN Board (4/4))
IC565 PQ05RD21J00H (MAIN Board (4/4))
IC570 PQ09RD21J00H (MAIN Board (4/4))
IC570 PQ09RD21J00H (MAIN Board (4/4))
21
22
25
24
23
EQ
REC OUT(L)
17
ALC DET
1M
REC MUTE
ON/OFF
MUTE
ON/OFF
HIGH
/NORMAL
ALC
ON/OFF
18
GND
19
I REF
20
TEST
14
15
12
13
A/B
11
16
VCC
34
B IN
(L)
33
RIP
32
A IN
(L)
B
B
A
A
RETURN
SW
RETURN
SW
31
PB NF1
(L)
37
B IN
(R)
36
GND
39
A IN
(R)
38
NC
40
REC NF1
(R)
35
REC
RETN
NC
ALC(L)
REC IN(L)
NC
MUTE
MUTE
26
PBOUT(L)
28
EQOUT(L)
29
PBEQ(L)
30
PBNF2(L)
27
TA1(L)
REC OUT(R)
NC
ALC(R)
REC IN(R)
NC
PBOUT(R)
EQOUT(R)
PBEQ(R)
PBNF2(R)
TA1(R)
ALC
10
9
7
8
EQ
6
3
2
1
4
5
1
2
3
OCP
VP
OUT
OVER LOAD
DETECT
DC
DETECT
4
CT
5
GND
6
VCC
1
2
3
IC
VOUT
VDD
GND
4
VC
68
HCD-GTX88/GTX88BP
IC1503 TC74LVX4051FT (EFFECTOR Board)
IC915 R5523N001B-TR-F (USB Board)
IC1501 M65850FP-E1 (EFFECTOR Board)
1
EN
2
GND
3
FLG
4
IN
5
OUT
GATE
CONTROL
UVLO
THERMAL
SHUTDOWN
CURRENT
LIMIT
FLAG
DELAY
OSCILLATOR
1/2 VCC
AUTO
RESET
LPF1
MAIN
CONTROL
A/D
20KBIT
SRAM
LPF2
D/A
2
3
4
5
6
7
8
9
10
11
15
14
13
12
CLOCK
RESET
MO
MI
D1
D0
DO1
VCC
16
NC
CLOCK
REF
OP2IN
OP2OUT
LPF2IN
LPF2OUT
LPF1IN
1
NC
LPF1OUT
OP1OUT
OP1IN
CC1
CC2
GND
1
D4
2
D6
3
COM
4
D7
5
D5
6
INH
7
VEE
8
GND
9
C
10
B
11
A
12
D3
13
D0
14
D1
15
D2
16
VCC
OUT
C
IN
OUT
C
IN
OUT
C
IN
OUT
C
IN
OUT
C
IN
OUT
C
IN
OUT
C
IN
OUT
C
IN
LOGIC LEVEL CONVERTER
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