Sony RDR-HX520 Service Manual page 56

RDR-HX520/HX525/HX720/HX722/
HX725/HX727/HX920/HX925
For Schematic Diagram
• Refer to page 4-4 for waveforms.
2
1
AV-103 BOARD(8/8) (RDR-HX525/HX725/HX727/HX925)
IR-CNT
A
NO MARK:REC/PB MODE
B
CN1102 8P
JL905
IR_GND 1
JL906
UN5V 2
JL907
XIR_RST 3
JL908
(FOR CHECK) CNVss 4
JL909
XCE 5
JL910
SH_TXD2 6
JL911
SH_RXD2 7
C
N.C 8
D
E
B+
SW5V-S
F
GND-I
7
TO(1/8)
GND-T
IR-CNT
AV-103 (8/8)
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3 4 5
IC1102
IC1102 M30263M6A-1547U5
IR I/F
AVss
0
R1101
1k
P10.0/AN0
VREF
4.9
R1147
4700 P10.4/AN4/KI0
AVcc
B+
0
P9.1/TB1/
AN31
R1116
0
100k
P9.0/TB0IN/
R1133
AN30/CLKOUT
0
4700
R1134 CNVss
4700
R1103 0
1k
P8.7/XCIN
0
P8.6/XCOUT
11
5.1
RESET
R1108
P6.4/CTS1/RTS1/
680
2.4
C1109 CTS0/CLKS1
XOUT
15p
C1110 VSS
15p
X1101 2.3
16MHz
XIN
4.9
C1111
VCC
0.1u
P7.0/TxD1/SDA2/
B
0
TA0OUT/CTS1/
RTS1/CLKS1
P8.5/
NMI/SD
P7.1/RxD2/SCL2
0
/TA0IN/CLK1
P8.4INT2/
ZP
0
TA1OUT/V/RxD1
P8.3/INT1
P7.3/CTS2/RTS2
0
/TA1IN/V/TxD1
P8.2/INT0
P7.4/TA2OUT
0
P8.1TA4IN
/U
0
P7.5TA2IN/W
P8.0/TA4IN
/U
0
P7.6/TA3OUT
P7.7/TA3IN
B+
4-19
6 7 8
R1144
1k
0
P10.1/AN1
0
P10.2/AN2
0
P10.3/AN3
0
P10.5/AN5/
0
KI1
P10.6/AN6/
0
KI2
P10.7/AN7/
0
KI3
P1.5/INT3/
0
ADTRG/IDV
P1.6/INT4/
0
IDW
P1.7/INT5/
0
IDU
JL912
0
P6.5/CLK1
4.9
R1139
10k
P6.6/RxD1
4.9 R1140
10k
P6.7/TxD1
R1141
4.9
10k
5.1
P7.2/CLK2/
0
IC1103
0
R1105
0
1k
/W
R1142
0 SN74AHC1G00DCKR
0
JL903
0
0
JL904
0
R1143
0
9 10
RESET5V
IR_BUSY
22
TO(5/8)
IR_INT
JL902
STB_RXD
JL901
STB_TXD
Q1104
2SB1561T100Q
B+
SWITCH
0
NAND
4.9
R1110
1k
IC1103
4.9
R1148
4.9
Vcc
150
B
C1104
R1106
470p
2200 R1132
B
150
A
4.9
V
R1107
GND
150 D1103
STZ6.8N-T146
C1103
R1111
1u
1k
B
1608
R1146
0
4-20
11 12
R1120
R1115
1k
0
JL913
JL914
JL915
J1101
G-LINK