56
1
2
4
1
2
4
C
D
F
A
B
E
TS7, BCT-1710, BCT-1720, BCT-1730
((B))
(from page 54, 58)
IIC_BUS CHECK
↓
[Add solder to the contacts : R7011/R7012] OK
(See bottom side of IC7002 (EEPROM))
↓
[Add solder to IC7001 (PE5325 SubCPU) Pin13/14.]
↓
[Replace IC7001 (PE5325 SubCPU).]
↓
[Add solder to IC7002 (EEPROM) Pin5/6.]
[Communication Block Repairs]
↓
[Connect the PC and setup "main.exe" environment.]
↓
<Finished correctly?>
[Replace IC7002 (EEPROM).]
↓
[Add solder to IC4001 (CXA2161R A/V Switch) Pin34/35.]
↓
[Replace IC4001 (CXA2161R A/V Switch).]
↓
[Replace M1001 (BXF1167 Tuner Module) or IC1004 (Link IC).]
↓
[Replace MAIN ASSY.]
↓
Serial communication check :
[Execute any "Set parameter" operation.]
(In the "main.exe" Window, push f1 key then f9 key.)
MODEM check :
[Execute "No.22 : Check MODEM(SET)" operation.]
[Replace IC5006(HIN211CA RS232C drivers).]
<Serial communication check>
↓
OK
NO
YES
[Around 14.2848MHz CARD_CLK.]
[After checking the line, Replace MAIN ASSY.]
↓
NG
[Replace CARD ASSY.]
<Card check>
↓
OK
NO
[End]
((C))
(to page 57)
NO
[Trace the Serial communication line.]
NG
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