Re: Transformer MIP260T-T102 (RCA L26HD31) Help




if u have schematic please upload
i/p board number MIP260T
REV A2
2008,05.17 MADE IN CHINA

OR NEED DATASHEET FOR IC SG3525AN
CPBS0848G...

Re: 40" Sony LCD KDL-40EX500 Seconds to black (6 blinks)

hello coofhair
bad transformer sure kills fet and also may kills driver ic
about ccfl lamps u can test it out of tv with inverter of old scanner u have to see
it.s light one by one u will find one or 2 lamp have dark area besides
it.s contact with ht (about 1200v)
and there is many tools exist online to test ccfl lamps and transformers
resolding components besides fet and transformers coz overheating in this area also make sure carefully about
bad caps which it.s value in pf...

Re: 40" Sony LCD KDL-40EX500 Seconds to black (6 blinks)

hello
u want to remove proctect Pin
connect pin pin 20 to ground directly
the tv will work and u will see the real reason which made this problem
bad lamp or bad contact to one lamp or bad transformer or something else like bad caps in pf and high voltage
but please pay attention
it is very important
we remove protection to fix the real reason and after that we we connect
it if u remove it and deliver it to your customer the tv will back to u
u will find big problem...

Re: 40" Sony LCD KDL-40EX500 Seconds to black (6 blinks)

hello
this is backlight problem
open ur inverter u have SSI091ASN inside
the solution is
SSI091ASN No datasheets available...but probably

Pin 4 is grounded.
Pin 5 is error out.
Pin 6 may be Vcc. ( Check voltage on this pin.)
Pin 7 is VREF. (Probably 1.2V, 2.5V or 5V.) * jest 5,5V
Pin 13 is grounded.
... pin 20 is OLP (Open lamp protect. Should normally be low.)
(PIN 19 ) ill be 0.01V when the backlights go on.
When It'll raise up...

Re: New Members - please post your introductions here

hello colleagues
I´m new in this forum
it is great forum
I'm 43 years old and i studied electronics in my younger
i works in this field about 25 years
i think i am professional in tv repairing so i can make some help here
crt.lcd.plasma
we can fix any problem in crt about lcd and plasma no problems about
psu and inverter the hard things also get from the main board
i have many tools programmers we need for eeprom .flash memory
etc and we make success day...