google.com, pub-1990720073119592, DIRECT, f08c47fec0942fa0 Samsung LA40R81BD Skip to main content

Samsung LA40R81BD



Repairing Samsung LA40R81BD 40in LCD TV Power Supply (clicking Relay Symptom)



 



 



Samsung Power Supply (clicking Relay Symptom)





  • Inspect all electrolytic capacitors on the power supply board and replace any that are bulging or leaking.







  • On my board there were 2ea 2200uf capacitors that were bulging.







  • Remove the old capacitors ensuring you don't overheat or damage the copper pads/tracks on the circuit board








  • Take care to ensure you install the new capacitors
    correctly. They are polarity sensitive and the board and capacitors
    will be clearly marked which way they should be inserted.








  • You may want to check and replace any adjacent capacitors that are rated 10V as these seem to be the ones likely to fail.







  • In my case I also replaced the 1000uF capacitor








  • If you have a different model TV the layout of the power
    supply board may be different however the faulty capacitors should be
    easily identifiable.








  • If replacing the capacitors does not resolve your
    symptoms you may need to replace the eprom on the main board as it can
    be corrupted or damaged by the power cycling










Comments

Post a Comment

Popular posts from this blog

Firmware TP.SK516S.PC821

  TP.SK516S.PC21 Firmware Download Available  Imran Ashraf Whatsapp Support QR Code  It's looks like you're searching for firmware or software related to the TP.SK516S.PB802 Mother Board Find the Correct Firmware on my this website  1. Check Your TV Brand & Model    - The TP.SK516S.PC821 is Main Board Number      2. Correct Resolution It's FHD or UHD 3. Get From Trusted Website and Trusted Person Like Imran Ashraf 10 Years in this     - If the firmware isn’t available on this website you may need to contected Imran Ashraf he can arrange your requirements       4. Caution with Firmware Flashing      Never download firmware from untrusted sites —it may contain malware or brick your TV.      - Ensure the firmware **exactly matches** your TV model and hardware version. If You Need Further Help: - Contact Whatsapp Support+923139292880 - Specify the issue (e.g., boot loop, no...
Post a Comment
Read more

Philips Codes

PHILIPS - 32PF 5320/28 (Service Mode, Error Codes & Fault Finding] Cont:- Philips 32PF 5320  Service Mode, Error Codes & Fault Finding [Cont:] NO PICTURE, BLANK SCREEN WITH CORRECT SOUND OUTPUT. Check whether the user menu is visible. If the user menu is OK, activate teletext mode. If teletext is OK, the problem is in the ADC [B18]&[Columbus 3D combfilter [B19], if present [depending on model]. If the user menu is not visible, check the LCD panel back light is ON. If the back light is OFF, the problem is in the power supply board or LCD panel.  Also check pin 12 (Lamp_ON_OFF) of 1J02.  It should be high, during normal operation. Fault finding purposes, it is important know the following:-   In Pixels Plus and Digital Crystal Clear models, which have an ADC [Analogue to Digital Converter] (B18), and Columbus 3D comb filter (B19), the digital input of the scaler is used for digital video path (Hercules output), whereas the analogue RGB output , a...
Post a Comment
Read more

Philips Com

PHILIPS - 32PF 5320 [LCD PANEL REMOVAL] DISASSEMBLE PROCEDURE DISASSEMBLY Cautiously pull back the upper part of the anti-static copper foils next to left and right speakers. do this in such a way that the foils are no longer attached to the metal ground plate on which the SSB board is mounted. Disconnect cables  form the "L" and "R" speakers. Unplug the LVDS connector  on the LCD panel. Be careful. This is a very fragile connector.  Unplug connections of the side I/O panel, the Top Control Panel, and the LCD panel on the SSB board Unplug 520 & X530 connectors on the power supply board. Instead of X520 also connector 66B on the other end of flat cable can be unplugged.  Lift the metal frame, together with all PCBs from the LCD panel.  Take care not to damage fragile LVDS cable, the 66B connector, and the anti-static copper foils.  Take care of these too, when later re-assembling the TV set, and replacing the copper foil. After removal of the...
Post a Comment
Read more