electronics, repairs, service manuals and datasheets discussion community for the repairs professionals and technicians
FAQSearchMembersGroupsRegisterProfilePM'sLogin/Out
Primma Tv 20" no model number, uses strs6707 pwr supply

 
Post new topic   Reply to topic    Electronic equipment repair and service manual search discussion Forum Index -> Equipment Repairs
View previous topic :: View next topic  
Author Message
cogil



Joined: 26 Apr 2008
Posts: 45
Location: Kenya
PostPosted: Mon Mar 16, 2009 9:22 am    Post subject: Primma Tv 20" no model number, uses strs6707 pwr supply Reply with quote
Primma Tv 20" no model shows.
Has an STR S6707 on pwr supply and cannot switch on has continuous buzzing sound when switched on, any manuals or help

Last edited by cogil on Mon Mar 16, 2009 12:26 pm; edited 1 time in total
Back to top
View user's profile Send private message
jts1957



Joined: 24 Nov 2008
Posts: 2476
Location: Far, Far Away
PostPosted: Mon Mar 16, 2009 12:17 pm    Post subject: Reply with quote
Do secondaries of Switched Mode Power Supply have necessary voltages?
If all = NO ... problem in SMPS (?regulator?).
If one (or more) missing (or low) ... check for short on that (those) supplies. (?Horizontal Output device?)
Back to top
View user's profile Send private message
cogil



Joined: 26 Apr 2008
Posts: 45
Location: Kenya
PostPosted: Mon Mar 16, 2009 12:39 pm    Post subject: Reply with quote
jts1957 wrote:
Do secondaries of Switched Mode Power Supply have necessary voltages?
If all = NO ... problem in SMPS (?regulator?).
If one (or more) missing (or low) ... check for short on that (those) supplies. (?Horizontal Output device?)


Thanks for your answer @jts1957,
Have changed the switching regulator strs6707, but still wont power up the secondary, has a no/no power.
Will try and analyze side components which am assuming values could have been changed earlier.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Electronic equipment repair and service manual search discussion Forum Index -> Equipment Repairs All times are GMT
Page 1 of 1

 
Jump to:  
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 - Pinout Master - Jabse Service Manual Search - Jabse.InK  - onTap.bg

Poblizo.com : пътешествия  - Top free service manuals download resources 2026  

Latest Service Manuals : AV-21L81B JVC • kt8301 Integral • PHILIPSCh.TC8.1LCA Philips • Samsung-8418 Samsung • samsung uc5000 sx1 led large Samsung • 29FS2RMB LG • HP 60501B_252C 60502B Service Agilent • GF 8 RFT • rg501 Tektronix • xr684 peavey •