Service manual

Pin
No.
Name IN/OUT Description
109 DSR5# I RS-232 ch1 DSR signal
110 CTS5# I RS-232 ch1 CTS signal
111 RXD5 I RS-232 ch1 RXD signal
112 TXD5 O RS-232 ch1 TXD signal
113 DTR5# O RS-232 ch1 DTR signal
114 RTS5# O RS-232 ch1 RTS signal
115 INT4# I Shift enable for option display
116 HTS2 O 8 bit serial port output (for option display)
117 SCK2# O
Serial port shift clock output
(for option display)
118 STH2 I 8 bit serial port input (for option display)
119 DSR4# I MCR track 3 CLS signal
120 RXD4 I MCR track 3 RDD signal
121 RXC4 I MCR track 3 RCP signal
122 DSR2# I MCR track 2 CLS signal
123 RXD2 I MCR track 2 RDD signal
124 RXC2 I MCR track 2 RCP signal
125 DSR1# I MCR track 1 CLS signal
126 RXD1 I MCR track 1 RDD signal
127 RXC1 I MCR track 1 RCP signal
128 IPLON O IPL switch 0 ON signal to CPU
129 OPTCS# O
Chip select base signal for expansion
option
130 VDD - +3.3V
131 GND - GND
132 VMEMC# O VRAM chip select signal
133 VIOC# O LCDC chip select signal
134 VWAIT# I LCDC wait signal
135 DSF2# O DPRAM chip select signal
136 EXWAIT# I External wait signal
137 EXINT0# I External interrupt signal 0
138 EXINT1# I External interrupt signal 1
139 EXINT2# I External interrupt signal 2
140 EXINT3# I External interrupt signal 3
141 BUSY3# I Fiscal memory BUZY signal (NU)
142 RXD3 I Fiscal memory RXD signal (NU)
143 TRXC3 I Fiscal memory CLOCK signal (NU)
144 TXD3 O Fiscal memory TXD signal (NU)
145 TXRDY3 O NU
146 TRXRDY3 O NU
147 RXRDY3 O Fiscal memory READY signal (NU)
148 DTR3# O Fiscal memory DTR signal (NU)
149 RTS3# O Fiscal memory RTS signal (NU)
150 DBTST I MPCA test pin (GND)
151 VRESC O NU
152 ST1# O Thermal head drive strobe signal 1
153 ST2# O Thermal head drive strobe signal 2
154 ST3# O Thermal head drive strobe signal 3
155 GND - GND
156 GND - GND
157 VDD - +3.3V
158 ST4# O Thermal head drive strobe signal 4
159 ST5# O Thermal head drive strobe signal 5 (NU)
160 GND - GND
161 ST6# O Thermal head drive strobe signal 6 (NU)
162 LATCH# O Thermal head latch signal
Pin
No.
Name IN/OUT Description
163 SO O Thermal head serial output data
164 GND - GND
165 CLOCK O Thermal head clock signal
166 SI I Thermal head serial return data
167 DTCS O Printer control select signal (GND)
168 LCDWT I Wait request signal to CPU (+3.3V)
169 DTST# I MPCA test pin (+3.3V)
170 INHDEC I CSEN# enable signal (GND)
171 CSEN# I TPRC chip select (GND)
172 TTST2# I MPCA test pin (+3.3V)
173 TTST1# I MPCA test pin (+3.3V)
174 TIRQ# O TPRC interrupt request
175 INH# I Thermal head drive inhibit
176 RPE I Receipt paper end signal
177 JPE I Journal paper end signal
178 PHUP I Printer head up signal
179 PCRES I Auto cutter unit reset signal
180 PFP I Auto cutter unit FP signal
181 VHCOM I Head drive common power control
182 GND - GND
183 VDD - +3.3V
184 RVPON O
Receipt side paper feed pulse motor
common power control signal
185 JVPON O
Journal side paper feed pulse motor
common power control signal (NU)
186 CTBO O Cutter motor control signal
187 CTAO O Cutter motor control signal
188 RDS O
Receipt side paper feed pulse motor
drive signal, phase D
189 RCS O
Receipt side paper feed pulse motor
drive signal, phase C
190 RBS O
Receipt side paper feed pulse motor
drive signal, phase B
191 RAS O
Receipt side paper feed pulse motor
drive signal, phase A
192 JDS O
Journal side paper feed pulse motor
drive signal, phase D
193 JCS O
Journal side paper feed pulse motor
drive signal, phase C
194 JBS O
Journal side paper feed pulse motor
drive signal, phase B
195 JAS O
Journal side paper feed pulse motor
drive signal, phase A
196 PTRM I Receipt motor connector sens signal
197 PTJM I Journal motor connector sense signal
198 POPI I GND
199 BA15 O Address bus 15 for PB-RAM
200 BA14 O Address bus 14 for PB-RAM
201 GND - GND
202 BA13 O Address bus 13 for PB-RAM
203 BA12 O Address bus 12 for PB-RAM
204 BA11 O Address bus 11 for PB-RAM
205 BA10 O Address bus 10 for PB-RAM
206 BA9 O Address bus 9 for PB-RAM
207 BA8 O Address bus 8 for PB-RAM
208 VDD - +3.3V