Pioneer TS4 Service Manual page 46

TS4
(b) (From page 45)
↓
<Passes "1" LED indication>
YES
<Passes "2" LED indication>
OK
<Passes "8" LED indication>
OK
<Passes "31" LED indication>
OK
<Stoppes at any other LED indication>
Passed: OK
<LED "88:88" light up>
↓
[On Screen Display appears on the
monitoring TV]
((A)) (From page 44,49)
POWER SUPPLY ASS'Y CHECK
↓
[Power on]
↓
<+3.3V check: CN201 Pin 8/9/10>
OK
<+5V check: CN201 Pin 12>
↓ OK
<+5.5V check: CN201 Pin 2>
↓ OK
<+8V check: CN201 Pin 14>
↓ OK
<+12V check: CN201 Pin 16>
↓ OK
<+24V check: CN201 Pin 15>
↓ OK
<+30V check: CN201 Pin 19>
↓ OK
<Examine +24V/+19V at CN201 Pin 17:
19V?>
(When POW 1=Low)
↓ YES
[Power Supply Ass'y seems OK]
↓
[Go back to the MAIN Ass'y check]
↓
((AA)) (See page 44)
46
NO: Stopped at "1"
[Replace M1001 (BXF1108 TUNER MODULE).]
NO: Stopped at "2"
[Replace IC6005 (EEPROM.]
NO: Stopped at "8"
[Replace IC3002 (FLASH ROM (II)).]
NO: Stopped at "31"
[Replace IC4001 (Audio/Video Switch).]
Stopped NG
<After replacing IC3003(DRAM), OK?>
YES
NG
[Replace the fuse F101]
↓
<OK>
↓
NG
[Replace the Power Supply Ass'y]
NG
[Replace the Power Supply Ass'y]
NG
[Replace the Power Supply Ass'y]
NG
[Replace the Power Supply Ass'y]
NG
[Replace the Power Supply Ass'y]
NO
[Replace the Power Supply Ass'y]
NO
[Replace the MAIN Ass'y.]
NG
[Replace the Power Supply Ass'y]