Epson LQ 1050 - B/W Dot-matrix Printer - Page 187

A.1 IC DESCRIPTIONS
This section describes the primary ICS used in the FX-850/1050.
Table A-1.
IC List (PEGX Board)
IC Name
Description
Part Number
IC Location
wPD7810HG
Main CPU
X4000780 10
4B
E05A15HA
Gate Array
Y46 1800002
3A
E05A16GA
Gate Array
Y46 1800003
7A
HM6264ALSP-15
ST-RAM 64K bit
X400662647
5A, 6A
STK6722H
Hybrid
IC
X4406722 10
2A
NJ M2355
Switching Regulator
X440072350
1A
Table A-2 Transistor List
Transistor Name
I
Description
I
Part Number
I
Location
2SC3987
j 6O+1OV, 3A, 2W
] X302398709
I Q1-Q9, Q16
2SA1 450
\ 80V,500mA,600mW I X300145009
I Q1O, 12
2SC3748
I 60V, 10A
I X302374809
I Qll
2SC3746
I 60V, 5A
I X302374609
I Q13
2SB765K
I 120V, 3A, 1.5W
I X301 O7653O
I Q15
2SB1318
I 100V, 3A, 1.2W
I X301131809
I Q17
2SD560 (4)
I 120V, 5A, 1.5W
I X303056009
I Q18-Q21
2SC18 15
I 60V, 150mA, 400mW I X302181589
] Q22, Q25, Q30
2SA1O 15
I 50V, 150mA, 400mW I X3 OO1 O 15O 9
I Q23, Q24
A-1