Home |
Search |
Today's Posts |
|
Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
|
|||
|
|||
Philips 25GR9666
Hello,
I need some help on this one. Found this french chassis with a shorted BUT18 an a shorted D1577. The pink condensator next to the last one was blown as well. All fuses intact except for the main fuse. Repaired the supply with a BUT11 (is that ok?) and now got 115v on the other side of the transformer and some audio working. The led ond the frontside doesn't give any signs. For the high voltage part; I don't dare to put the new D1577 in because I don't trust the small transitors (T7593 and T7594) on the soldering side of the board.. So here's my question; can anyone identify those two transitors or send me (a part of) the schematics? Any other suggestions? Your help will be most welcome. Thanks in advance! Derk-Jan |
#2
|
|||
|
|||
Philips 25GR9666
Hi,
As far as I know, this is a G110 chassis. You can check the powersupply with a lamp 100W/230V from the gnd of the pcb to the 148Volt testpoint. Only thing you have to do is to disconnect the connector of the Horontal-deflection. It's the biggest one on the H-V coil. If the voltage is 148 V at the testpoint then the powersupply is ok. Greetings Peter "Gerritsen, Derk-Jan" schreef in bericht ... Hello, I need some help on this one. Found this french chassis with a shorted BUT18 an a shorted D1577. The pink condensator next to the last one was blown as well. All fuses intact except for the main fuse. Repaired the supply with a BUT11 (is that ok?) and now got 115v on the other side of the transformer and some audio working. The led ond the frontside doesn't give any signs. For the high voltage part; I don't dare to put the new D1577 in because I don't trust the small transitors (T7593 and T7594) on the soldering side of the board.. So here's my question; can anyone identify those two transitors or send me (a part of) the schematics? Any other suggestions? Your help will be most welcome. Thanks in advance! Derk-Jan |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
How to control the Philips KMZ-51 sensor | Electronics | |||
Philips 36PT41B1 | Electronics Repair |