Sony HDW-750 Maintenance Manual page 331

STT1-0
1
2
DBUS7-0
8
7
6
5
4
3
+3.3V
2
1
+3.3V
R1154 R1155
10k 47k
IC1111 (1/5)
TC74VHC00FT(EL)
1
2
S1101
+3.3V
4
2
PR
D Q
3
CK
Q
CLR
1
HDW-750 V2
I J
CS2 002
CS0 010
011
CS1
STT1-0 002,010,011
DBUS7-0 002,010,011
IC1111 (4/5)
12
TC74VHC00FT(EL)
11
13 RING_CPU_CK 002
IC1111 (3/5)
9
TC74VHC00FT(EL)
8
10 CPU_CK 010,011
IC1111 (2/5)
3 4
TC74VHC00FT(EL)
6
5 ED/RING_STB 002,010,011
EXT
IC1117 (4/5)
SN74LV125APWR
001,003
SIO_CK
12 11
005,006,007,008
RC_SIO_CK
13
IC1117 (3/5)
SN74LV125APWR
SIO_DATA 001,003
9 8
IC1116 (1/3) RC_SIO_DATA 005,006,007,008
TC74VHC74FT(EL)
10
5
001
H_PB_EFGH_SAVE
IC1116 (2/3)
+3.3V
6 TC74VHC74FT(EL)
10
12 9
PR
D Q H_PB_ABCD_SAVE 001
11 8
CK Q IC1117 (1/5)
CLR SN74LV125APWR
13
2 3
RC_STB 005,006,007,008
1
H_RC_SAVE 005,007
R/E_RESET 002,010,011
EQ_STB1 003
001
REC_EQ_STB
001,002
L_ABCD_REC
L_EFGH_REC 001,002
H_EEorPB 001
L_CK27_EN 002
H_POWER_SAVE 003,004
E1101
K
EQ-88 (12/12) EQ-88 (12/12)
IC1103 (9/9)
TC74VHC244FT(EL) IC1103 (3/9)
TC74VHC244FT(EL)
+3.3V
17 3
IC1103 (5/9)
TC74VHC244FT(EL)
VCC 15 5
C1122
0.1uF
GND
GND
IC1105 (9/9)
IC1105 (3/9)
TC74VHC244FT(EL) TC74VHC244FT(EL)
17 3
+3.3V
IC1105 (5/9)
TC74VHC244FT(EL)
15 5
VCC
C1123
0.1uF
GND IC1105 (6/9)
TC74VHC244FT(EL)
6 14
IC1105 (8/9)
TC74VHC244FT(EL)
8 12
IC1110
(1/5)
IC1110 (5/5)
TC74VHC08FT(EL)
TC74VHC08FT(EL)
1
3
+3.3V
2
IC1110 (3/5)
TC74VHC08FT(EL)
9
8
VCC
C1125
10
0.1uF
GND
IC1110 (4/5)
TC74VHC08FT(EL)
12
11
13
GND
IC1116 (3/3)
IC1111 (5/5)
TC74VHC74FT(EL)
TC74VHC00FT(EL)
+3.3V
+3.3V
VCC C1127
VCC 0.1uF
C1126
0.1uF GND
GND
GND
IC1117 (5/5)
SN74LV125APWR
+3.3V
IC1117 (2/5)
SN74LV125APWR
VCC
C1129 5 6
0.1uF
GND
4
GND
GND
4-117 4-117
L M
EQ-88 (12/12)
BOARD NO. 1-678-738-11, 12
LOT NO. 083-
HDW-750_EQ-88_014_12
N O
1
2
3
4
5
P