Sony MZ-E800 Service Manual page 36

Pin No. Pin Name
97 TMS
98 TCX
99 XTRST
100 TDO
101 NC
102 SSB DATA
103 SSB CLK
104 FLASH WR EN
105 VDD
106 VSS
107 to 109 VLC1 to VCL3
110 to 115 SEG0 to SEG5
116 DBB0
117 DBB1
118 XAVLS
119 XCS NV
120 NC
I/O
Test mode control signal input terminal for JTAG scan test Not used (open)
I
Clock signal input terminal for JTAG scan test Not used (open)
I
Reset signal input terminal for JTAG scan test Not used (fixed at "L")
I
Data output terminal for JTAG scan test Not used (open)
O
Not used (open)
O
I/O Two-way SSB serial data bus with the SN761056CDBT (IC501)
O SSB serial clock signal output to the SN761056CDBT (IC501)
Write enable signal input terminal Not used (fixed at "H")
I
Power supply terminal (+2.4V)
—
— Ground terminal
I Not used (fixed at "H")
Segment drive signal output to the liquid display module (LCD901)
O
I Set switch (S806) input terminal (A/D input) (DIGITAL SOUND PRESET switch 1 input)
I Set switch (S806) input terminal (A/D input) (DIGITAL SOUND PRESET switch 2 input)
I Set switch (S807) input terminal (A/D input) (AVLS switch input) "L": limit
Chip select signal output to the EEPROM (IC802)
O
Not used (open)
O
Description
– 46 –