Pioneer TS4 Service Manual page 47

((B))
[IIC_BUS check]
[Add solder to the contacts: R6057/R6058.]
(See bottom side of IC6005) (EEPROM)
[Add solder to the contacts: R6027/R6028.]
(See bottom side of IC6001) (SUB CPU)
[Add solder to IC6001(PE5128A SubCPU.) Pin 62/63/64.]
[Add solder to the contacts: R6052/R6053.]
(See bottom side of IC6005) (EEPROM)
[Add solder to IC6005(EEPROM) Pin5/6.]
[Add solder to the contacts: R4047/R4048.]
(See bottom side of IC4002) (DAC)
[Add solder to IC4001(STV6411A Audio/Video Switch) Pin21/22]
[Replace IC6005(EEPROM).]
[Replace IC6001(PE5128A SubCPU.).]
[Replace IC4001(STV6411A Audio/Video Switch) .]
[Replace M1001(BXF1108 TUNER MODULE).]
[Replace the MAIN Ass'y.]
[Communication block repairs]
[Connect the PC and setup "main.exe"environment.]
Serial communication check:
[Execute any "Set parameter" operation.]
(In the "main.exe" Window, push F1 key then F9 key.)
<Finished correctly?>
Parallel communication check:
[Execute "No.2:Download" operation.]
(Download the GGF1362-program from the PC to FLASH ROM(II))
<Finished correctly?>
MODEM check:
[Execute "No.28:Check MODEM(SET)" operation.]
<Finished correctly?>
Card check:
[Execute "No.11 Bank Card R/W CHECK" operation.]
or[Execute "No.10 DSCR Card R/W CHECK" operation.]
<Finished correctly?>
(From page 45,49)
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
NO
YES
↓
NO
↓
YES
↓
NO
YES
↓
NO
YES
[End]
[Replace IC5006(HIN211CB RS232 drivers).]
↓
<Serial communication check>
↓
OK
[After checking the controls and data lines, Replace the MAIN Ass'y.]
((C)) for TS4 (See page 48)
for the other models,
[replace the MODEM Ass'y.]
[Replace the Card Ass'y.]
↓
NG
[Card check]
↓
OK
NG
[Trace the Serial communication line.]
[Around 14.2848MHz CARD_CLK .]
↓
[After checking the line, Replace
the Main Ass'y.]
TS4
47