Epson LQ-510 - Page 179

TROUBLESHOOTING
REV.-A
5.3.2 SAMA CONTROL BOARD UNIT REPAIR
The following chart shows the main components on the SAMA board.
Table 5-6. SAMA Board Parts List
Location
Part ID Description
Part No.
5B
µPD7810HG
CPU
X400078101
7A
E01A05 Gate Array Y566800009
1A
E05A02
Gate Array
Y453800004
5A
HM65256BLSP-12
PSRAM
X400062565
4B
S-29401 EEPROM
X400029400
2B
SLA7020M
Stepper Motor Driver
X440070200
3B
74LS06 Hex lnverter
X420300060
8A, 8B
74LS07 Hex Buffer X420300070
2A
74LS38
Quad 2-In NAND Buffer
X420380380
7B
74LS152
10-Step Real
Cord
X420301520
6B
TL431CLPB
Adjustable Precision Shunt Regulator
X440034313
Q30, 31, 35
2SA1015-TPE2
Transistor 50
V 150 mA 400 mW
X300101509
Q34
2SA1020-TPE6
Transistor 50
V 2 A 900 mW
X300102009
Q27
2SB1093-T
Transistor 80
V 1.5 A 1 W
X301109309
Q32, 33
2SC1815Y-TEP2
Transistor 50
V 150 mA 400 mW
X302181589
Q24, 26, 28,
29 2SD2010P-T105
Transistor 60
V ± 2 A 1.2 W
X303201039
Q1-23, 25
2SD1843L-T
Transistor 60
V 1 A 10 W
X303184329
5-14
LQ-510