TROUBLE SHOOTING
RF- STEREO
Selected correct system
In menu
OK
Check the waveform |
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At pin 17 of TU101 |
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Check the waveform |
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At pin 24,25 of IC661 |
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Check the waveform |
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At pin 4,12 of IC602 |
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Check the Voltage |
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At pin 6, 7 of IC602 |
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Check the waveform |
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At pin 1, 2, 14, 15 of IC602 |
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| OK | NO | ||||
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Check the Voltage |
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At pin 3,13 of IC602 |
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Check / Replace
TU 101
Check The Voltage At pin 16,33,46, of IC661
Check / Replace
Q671, 672
Check / Replace
Q621, IC603
Check / Replace
F851, D862
NO
Check The voltage
At pin of IC610, IC853
NO
Check / Replace
IC610, IC853
No Raster / Sound OK
Check the
Heater voltage of CPT (6 ~ 6.5Vrms)
OK
NO
Check
HV, Screen Voltage of
CPT
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NO | OK | |
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Check
IK Current of
IC01, pin37,39,40
NO
Check the
Heater pulse of FBT
T402
OK |
| NO |
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Check FBT T402
Check / Replace
CPT Board
Components
Check
FR901, P402A
P402B, P302
Check
IC01, Q901, IC901
P03A, P03B, P541
Check FBT T402
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