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Equipment Repairs => LCD TV forum => Topic started by: bobhope on February 14, 2012,07:52:36

Title: lg LG RZ-37LZ55 power supply board
Post by: bobhope on February 14, 2012,07:52:36

hi .  my faulty lg power supply has blown .A common fault apparently , please can someone advise me where to get a replacement board from . I have looked at the replacement kits but look to daunting for a diy fix as my soldering skills are not up to scratch . thanks in advance , dave

Title: Re: lg LG RZ-37LZ55 power supply board
Post by: sparky on February 14, 2012,11:02:57

hi
try EMOS TV they will have a replacement psu at the right
price just goole EMOS TV
dave

Title: Re: lg LG RZ-37LZ55 power supply board
Post by: sabre504 on February 14, 2012,12:36:17

Hi i bought one from a company on ebay New £57.99 +£2.99 P+P
Item num 280323817353

Quick delivery and had no problems
Paul

Title: Re: lg LG RZ-37LZ55 power supply board
Post by: bobhope on February 14, 2012,13:39:55

thanks for reply's, emos tv are out of stock , sabre .another option there , that is for a brand new board , was hoping to get something a bit cheaper , but thanks again . Dave

Title: Re: lg LG RZ-37LZ55 power supply board
Post by: sabre504 on February 14, 2012,14:00:05

They also do an exchange service but not sure how much cheaper it works out
Paul

Title: Re: lg LG RZ-37LZ55 power supply board
Post by: bobhope on February 15, 2012,11:49:37

thanks for all your help guys , just purchased this on ebay item no  260858775471 seems a very good price for a new psu board , will let you know when arrives and fitted .

dave

Title: Re: lg LG RZ-37LZ55 power supply board
Post by: Turnip on February 15, 2012,13:33:20

Hi folks,

No-one has said yet anything about this 'common prob' before, so not yet listed on Quuq

Keep up input folks, or we'll slap you around - well, a little bit  - Chris

Title: Re: lg LG RZ-37LZ55 power supply board
Post by: sabre504 on February 15, 2012,13:47:09

Hi 
List of parts that usually need replacing
F901 - T5A 20mm fuse

IC904 - STR-T2268 (cracks and sometimes blows to bits )

C920 - 220nF SMD capacitor

C921 - 4.7uF SMD capacitor

C924 - 1uF SMD capacitor

R920 - 330R SMD resistor

ZD911 - 1N5226B 3.3V zener diode

 Power supply failure is very common on this model, normally a loud bang will be heard and there after the set will be stuck in standby or be completely dead. The SMD capacitors fails and blows other components which are listed above

Title: Re: lg LG RZ-37LZ55 power supply board
Post by: fix2003 on February 16, 2012,02:38:49

CHS do a kit
also check
R925 22R :051bye:

Title: Re: lg LG RZ-37LZ55 power supply board
Post by: bobhope on February 16, 2012,12:02:14

psu board arrived and fitted  :thumbup: , If anyone wants the old board for repair , welcome to it . just cover the cost of posting  regards  , dave