Read Sharp DM-1500 (serv.man2) Service Manual online
PIN
No.
Pin name
Signal name
IN/OUT
Destination
Function
234
MD2
MD2
IN/OUT
16M Flash, DIMM168
DRAM data signal
235
MD33
MD33
IN/OUT
16M Flash, DIMM168
DRAM data signal
236
MD1
MD1
IN/OUT
16M Flash, DIMM168
DRAM data signal
237
MD32
MD32
IN/OUT
16M Flash, DIMM168
DRAM data signal
238
MD0
MD0
IN/OUT
16M Flash, DIMM168
DRAM data signal
239
MA11
MA11
IN/OUT
74LVC16244
DRAM address signal
240
MA10
MA10
IN/OUT
74LVC16244
DRAM address signal
241
V
CC
3.3V
IN
Power source
242
GND
GND
IN
GND
243
MA9
MA9
IN/OUT
74LVC16244
DRAM address signal
244
MA8
MA8
IN/OUT
74LVC16244
DRAM address signal
245
MA7
MA7
IN/OUT
74LVC16244
DRAM address signal
246
MA6
MA6
IN/OUT
74LVC16244
DRAM address signal
247
MA5
MA5
IN/OUT
74LVC16244
DRAM address signal
248
MA4
MA4
IN/OUT
74LVC16244
DRAM address signal
249
MA3
MA3
IN/OUT
74LVC16244
DRAM address signal
250
V
CC
3.3V
IN
Power source
251
GND
GND
IN
GND
252
MA2
MA2
IN/OUT
74LVC16244
DRAM address signal
253
MA1
MA1
IN/OUT
74LVC16244
DRAM address signal
254
MA0
MA0
IN/OUT
74LVC16244
DRAM address signal
255
TXD1
CMD
OUT
74LVC244
Serial data output 1
256
TXD2
N.C
NC
257
/SYNCEN
SYNCEN_
OUT
M66236FP
Jitter adjustment circuit control
signal
signal
258
GND
GND
IN
GND
259
GND
GND
IN
GND
260
GND
GND
IN
GND
261
V
CC
3.3V
IN
Power source
262
VFCLK
VFCLK
IN
M66236FP
Video I/F clock
263
RXD1
STS
IN
74LS244
Serial data input 1
264
RXD2
IN
NC (3.3V pull up)
265
/HSYNC
HSYNC_
IN
74LS244
Print horizontal sync signal
266
/TC
NC
267
/PAGE
PAGE_
OUT
74LVC244
PAGE sync signal
268
/VDATA
VDATA_
OUT
74LVC244
VIDEO data
269
/ROMWE
ROMWE_
OUT
74LVC244
Flash ROM write enable
270
/BUFOE
NC
271
/BUFDIR
BUFDIR
OUT
74LVC244
BUS buffer direction
272
V
CC
3.3V
IN
Power source
273
GND
GND
IN
GND
274
SYSAD0
SYSAD0
IN/OUT
CPU, 16M FLASH, 8M FLASH,
74LVC16245
74LVC16245
System address data bus
275
SYSAD1
SYSAD1
IN/OUT
CPU, 16M FLASH, 8M FLASH,
74LVC16245
74LVC16245
System address data bus
276
SYSAD2
SYSAD2
IN/OUT
CPU, 16M FLASH, 8M FLASH,
74LVC16245
74LVC16245
System address data bus
DM-1505
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