Sony MZ-G755 Service Manual page 27

Pin No. Pin Name
99 SLDW
100 SLCU
101 SLCV
102 SLCW
103 DIFVDD1
104 DIFVSS1
105 EFMO
106 MNT0
107 MNT1
108 MNT2
109 MNT3
110 SENSE
111 TX
112 RECP
113 DSPVDD3
114 to 117 NC
118 DRAMVSS0
119 DRAMVDD0
120 to 138 NC
139 DRAMVDD1
140 DRAMVSS1
141 TSB MST VDD
142 RMC DTCK
143 TSB SLV VDD
144 (TSB SLVI)
145 (TSB SLVO)
146 TDI
147 TMS
148 TCK
149 XTRST
150 TDO
151 JTAGVDD
152 JTAGVSS
153 MCUVDD2
154 MIFVDD0
155 MIFVSS0
156, 157 TEST1, 0
158 EVA
159 (OPR LED)
160 SSB DATA
161 SSB CLK
162 MCUVSS0
163 VREC PWM
164 VL PWM
165 VC PWM
166 SPDL AUX PWM
167, 168 NC
169 CLK SEL
I/O
Sled motor drive signal output (W) to the motor driver (IC551)/drive control signal
O
output (2+)
I Spindle motor drive comparison signal input (U) from the motor driver (IC551)
I Spindle motor drive comparison signal input (V) from the motor driver (IC551)
I Spindle motor drive comparison signal input (W) from the motor driver (IC551)
— Power supply terminal (for DSP I/F) (+2.3 V)
— Ground terminal (for DSP I/F)
O EFM encode data output for the record to the over write head drive (IC601)
O Internal DSP monitor output (0) terminal Not used (open)
O Internal DSP monitor output (1) terminal Not used (open)
O Internal DSP monitor output (2) terminal Not used (open)
O Internal DSP monitor output (3) terminal Not used (open)
O Internal DSP (SENS) monitor output terminal Not used (open)
Record data output enable signal output monitor terminal of the internal DSP
O
Not used (open)
O Laser power changeover signal output monitor terminal Not used (open)
— Power supply terminal (for DSP block) (+1.5 V)
O Output terminal for the external D-RAM
— Ground terminal (for the external D-RAM)
— Power supply terminal (for the external D-RAM) (+2.4 V)
O Output terminal for the external D-RAM Not used (open)
— Power supply terminal (for the external D-RAM) (+2.4 V)
— Ground terminal (for the external D-RAM)
— Power supply terminal (for TSB master communication) (+2.8 V)
I/O TSB serial data input/output with the remote commander attached headphone
— Power supply terminal (for I/F to TSB slave communication) (+2.3 V)
I TSB slave signal input from the remote commander attached headphone (fixed at "L")
TSB slave signal output from the remote commander attached headphone
O
Not used (open)
I Data input terminal for JTAG Not used (open)
I Test mode control input terminal for JTAG Not used (open)
I Clock input terminal for JTAG Not used (open)
I Reset input terminal for JTAG Not used (open)
O Data output terminal for JTAG Not used (open)
— Power supply terminal (for JTAG) (+2.4 V)
— Ground terminal (for JTAG)
— Power supply terminal (for the microcomputer block) (+1.5 V)
— Power supply terminal (for the microcomputer I/F block) (+2.3 V)
— Ground terminal (for the microcomputer I/F block)
I Input terminal for the main test (normally, fixed at "L")
I EVA/FLASH chip discrimination terminal "L": FLASH chip, "H": EVA chip
O Not used (open)
I/O Input/output of SSB serial data with RF amp (IC501)
O SSB serial clock output to RF amp (IC501)
— Ground terminal (for the microcomputer block)
O Over write head control spare terminal Not used (open)
PWM for the laser automatic power supply voltage control signal output to the power
O
control (IC901)
PWM signal output for the system power supply voltage control to the power control
O
(IC901)
O PWM signal output for the spindle support to the motor driver (IC551)
O Not used (open)
O System clock select signal output to the power control (IC901)
Description
Not used (open)
MZ-G755
27