View previous topic :: View next topic |
Author |
Message |
cliveb Guest
|
Posted: Mon Jan 23, 2006 3:24 am Post subject: dim ELD display |
|
|
Hi.
I'm trying to repair my Sony DHC-MD333. The main ELD has suddenly become very dim - the display is just visible in a darkened room! I presume the supply to the ELD grid is faulty. How is the supply/driver for this supply generated?
The display board is easy enough to explore, but the rest of the boards in this machine were clearly not designed to be repaired! Before I start disassembling it would be great to know roughly where to look.
Thanks
Clive |
|
Back to top |
|
 |
eso Guest
|
Posted: Sun Jul 09, 2006 2:35 pm Post subject: Dim eld... |
|
|
Hi,
in my case it was faulty zener (D534) in negatine supply + resistor (R531) feeding it, in the middle wing board on the right side. In wire JW 589 connecting the board to main board should be c. -32V.
You need to remove lot of things. Be very carefull removing the flat cables when disassembling ...they brake very easily.
br erkka |
|
Back to top |
|
 |
|
|
|
You can post new topics in this forum You can reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|
eServiceInfo on FB -
Service Manuals Free Download -
Service Diagrams
Free TV Schematics Download -
HARDW.net -
Pinout Master -
Jabse Service Manual Search -
Jabse.InK -
onTap.bg
SnimkiOt.com -
Poblizo.com : пътешествия
Latest Service Manuals :
MC90 SB 4651901798 Philips • A-107 Pioneer • philips ftl13uaa 480672717294 Philips • fl1 ptv 437 Philips • 307 Hameg • HP 85713A Operating Agilent • ARSP6-RP6 PG GB-JP Sharp • elektra 1.120a sm Nordmende • DECLARATION CE PRINTEX • 2sk1921 Sanyo •
|