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OK?..manual is complet and helpfull... for repairing such a old and rare boombox like JVC PCM it is necessary...
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Super Anleitung. Ordentliche Auflösung. Das ganze noch in Deutsch wäre zu schön. Alle Datenblätter sind sauber Kopiert und alle Leitungswege sind sauber ausgeführt
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Thanks God for the internet and thanks for the service like this - proffessional solution on time.
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About the service it's very fast and reliable. About the manual the quality is high enough to read even the tiniest details on the wiring diagrams so you can't ask much more than that, let it alone for a manual of a product from 20 years ago. Thank you, very satisfied.
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The downloaded quality was as good as the orignial
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5.2.2 POWER SUPPLY UNIT
Flowchart of Failure Analysis for The POWER SUPPLY Unit
A
Failure analysis for the POWER SUPPLY Unit => PS1
STB 3.3 V power is not output.
Is the cable connected firmly to the P4 connector? Yes Is the cable to the P4 connector broken? No Is the cable connected firmly to the P9 connector? Yes Is the cable to the P9 connector broken? No Is the fuse (F001) blown? No Is one of the limiting resistors (R001/FR001) blown? No
No
Properly connect the cable between the P4 and D23 connectors.
Yes
Replace the defective cable (J104). POWER SUPPLY Unit.
Check the voltage at the DIGITAL Assy and
No
Properly connect the cable between the P9 and M2 connectors.
B
Yes Replace the defective cable (J106).
Yes Replace the POWER SUPPLY Unit.
Yes Replace the POWER SUPPLY Unit.
Check the resistance between F001 lead and the D002 anode, using a tester.
C
The POWER SUPPLY Unit is normal.
Failure analysis for the POWER SUPPLY Unit => PS2
The power is not on, even though the RELAY port is active.
No Is the relay (RL002) on? Yes No Is the PFC voltage normal? Yes The POWER SUPPLY Unit is normal.
Replace the POWER SUPPLY Unit.
� Check the relay operation at the terminal (Pin 11 of P4). (Voltage: 3.3 V) � Check the relay sound (click).
Replace the POWER SUPPLY Unit.
� Check the voltage between F301 lead (PFC OUT) and heat sink (primary GND) nearest F301. � The voltage must be around 390 V. Caution: High voltage!
D
Failure analysis for the POWER SUPPLY Unit => PS3
The cells of the panel do not light normally.
Is the VADR voltage within the specified values? Yes Is there a fluctuation in the VADR voltage? No Is the VSUS voltage within the specified range? Yes Is there a fluctuation in the VSUS voltage? No The POWER SUPPLY Unit is normal.
No
Replace the POWER SUPPLY Unit.
The specified voltage values are between 57 and 63 V.
E
Yes
Replace the POWER SUPPLY Unit.
The ripple must be within 5 V.
No
Replace the POWER SUPPLY Unit.
The specified voltage values are between 205 and 215 V (VSU: 125/35°C).
Yes Replace the POWER SUPPLY Unit.
The ripple must be within 10 V.
F
PDP-LX6080D
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