Hitachi VK-U174, Руководство по обслуживанию

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4 3 2 1
A
B
C
D
E
F
G
A
B
C
D
E
F
G
8 7 6 5
4 3 2 1 8 7 6 5
- 5 -
2-2-2 PC Schematic Diagram (For Printing)
PC
6.9UH
(3.0L)
CODE PART NAME AR 2SB1462 BR 2SC4081 13 DTA143EE 26 DTC144EE 64 DTC114YE F7 KV1470 K DA221 MO MA132WA 3.0L MA3030L X2302
28.63
MHz
28.5
MHz
U174
U174E
RA DSP
SDRAM
RA
µ
P
NC GND
VCC
EEPROM1
EEPROM2
470 470
4fsc GEN
RESET PULSE GEN.
2507
238R
TF73
3.1
3.1 1.6
0
0
3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1
0 0 0 0 0 0 0 0
0
0
0
1.7
1.6
3.1
5
.0
3.8
0.9
1.0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 3.1 3.1 3.1 3.1
0 0
3.1
0
3.1
0
3.1 0.2
3.1
0
3.1
0
3.1
0
3.1
0
3.1
0
3.1
0
3.1
0
3.1
0
3.1
0
3.1
0
3.1
0
3.1 0 3.1 0 3.1 0 3.1 0
3.1 0
3.1 0 3.1 0 3.1 0 3.1 0 3.1 0
3.1 0 3.1 0
NOTE:VOLTAGES ARE MEASURED WHEN CAMERA IS POINTED AT THE COLOR BAR CHART.
3.1 0.1
3.1
3
.1
3.1
3.1
3.1 0 0
3.1
0 0
3.1 0.1
2.8
3.2
0 0
0.2
2.4
0.5
3.1
3.1
3.1
3.1
3.2
0
0
0
0
0
0
0
0
3.1
0
0
0
0
0
0
0
0
3.1
3.1
0.2 3.1
3.1 0
3.1
3.1 3.1 3.1 3.1 3.1 2.9
0
3.1 0
0 0 0 0 0 0 0 0 0 0 0 3.2
3.1 0
3.1 0
3.1 0
A-b