Sony MDS-JB940 Service Manual page 58

Pin No. Pin Name
52 RDY
53 ALE
54 HOLD
55 HLDA
56 MNT2(XBUSY)
57 VSS
58 MNT1(SHCK)
59 VCC
60 EEP-WP
61 SDA(EEP)
62 BCLK
63 OE
64 BHE
65 WE
66 SCL(EEP)
67 REFRECT-SW
68 PROTECT-SW
69 CS0(FLASH)
70 CS1(SRAM)
71 CS2 (Dictionary ROM)
72 A20
73 A19
74 VCC
75 A18
76 VSS
77 to 85 A17 to 9
86 to 89 SEL3 to 0
90 WP(FLASH)
91 VCC
92 A8
93 VSS
94 to 101 A7 to A0
102 to 113 D15 to D4
114 KEYBD-CLK-CTRL
115 I2CBUSY
116 KEYBD-DAT
117 REC-VOL-B
118 REC-VOL-A
119 to 122 D3 to D0
123 JOG-0
124 JOG-1
125 LATCH(DA)
126 OPT1/OPT2
127 COAX/OPT
128 FL-CS
129 POWER(IIC)
130 VSS
131 STB
132 VCC
133 OP-LEVEL
134 NC
135 NC
58
I/O
I Not used (fixed to High)
O Microprocessor mode
I Not used (fixed to High)
O Microprocessor mode
I (DSP)
I Power supply ground
I (DSP)
I 3.3 V power supply
O EEP-ROM write protect
I/O EEP data
O Not used
O Read signal output
O Not used
O Write signal output
O EEP CLK
I Disc reflection index detection switch
I Protect switch
O Chip select (Flash ROM)
O Not used
O Not used
O Address bus
O Address bus
I 3.3 V power supply
O Address bus
I Power supply ground
O Address bus
I Model identification
O Flash ROM write-protect
I 3.3 V power supply
O Address bus
I Power supply ground
O Address bus
I/O Data bus
O Keyboard clock ON/OFF
O Not used
I Keyboard data
I REC VOL (B)
I REC VOL (A)
I/O Data bus
I JOG (0)
I JOG (1)
O DA latch
O OPT1/OPT2 selection
O OPT1/OPT2 selection
O Chip select for display
O Not used
I Power supply ground
O DSP driver power control output
I 3.3 V power supply
I OP voltage (current) detection
I Not used
I Not used
Description