|
|
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
Excellent!! Got what I need and very fast!! Thank You
;
Manual acquired with good resolution, complete in all its pages, very good policy of the folder where are saved all products purchased.
 ;
Service manual very complete and clear. It was very helpfull for my work.
;
This is the 2nd time I download manuals from this website and I can say it's what I was expecting. It contains schematic, layout (decent quality), short description, parts and dissasembly instructions. I recomend it for anyone who wants to repair/modify this device.
;
Very useful Service Manual! With it I was able to identify the damaged pots in my old amplifier, purchase the adequate replacements and make myself the repair.
I have again my old amplifier, still a very good one that I will keep for as many years as I can!
Thanks to Owner Manuals!
5
6
7
8
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
5 6 7 8
47
|
|
|
> |
|
