tv led lcd
Saturday, March 30, 2024
All reseon of ew problem
All East West West problems are caused by either the processor signal not arriving or weak if the East West console was damaged and burned, and the burn reached the bass or the jet, and it became short with the ground, meaning I took out the East West signal, correcting the shape of the horizontal amplitude in relation to the vertical frame, or The transistor may be damaged without causing any damage, or the capacitor may have a problem, and sometimes after replacing the burned-
out parts like ew diodes uper or down resistance of coming volt from fly back to ew capacitor circuit
The image is not correct, because the processor is working on the inital value, and you still have to enter the service menu and adjust according to the processor number for the TV, and many engineers replace parts and do not know how to enter the service, so the West West is incorrect.
In the event that the processor does not output the SST signal, we work to modify the SST amplitude signal by placing resistors on the SST transistor, from 4.7 to 10 to 15, and a variable resistor with ground, and put a capacitor if we set the feed back from 103. To 104 feedback, negative or positive
مشاكل الايست ويست في التلفزيون العالدي
كل مشاكل الايست وست وست سببها اما ان يكون اشاره المعالج لا تصل او ضعيفه في حال كانتر نزستور الايست و يست تلف و احترق و ووصل الحرق لي البيس او الجيت و صارات شورت مع الاارضي يعني اخرج اشاره الايست وست تصحيح شكل اتساع الهوريزنتال بالنسبه لفريم الفيرتكال او ان يكون الترنزستور تلف بدون احداث ضرار او ان يكون المكثف به مشكله و احياننا بعد تبيديل القطع المحترقه
تكون الصوره غير صحيحه لا ان المعالج يعغمل غلي inital value و لزالك يجب الدخول الي السيرفيس مينو و تعديل حسب رقم المعالج للتلفزيون و كثير من المهندسين يبدلون القطع و لا يعرفون الدخول الي السيرفيس فيكون الاست ويست غير صحيح
و في حاله ان يكون ا المعالج لا يخرج اشاره الاست و ست نعمل علي تعديل اشاره اتساع ايست و ست بوضع مقاومات علي ترنزستور الايست وسيت بي الكيلو من 4.7 الي 10 الي 15 و مقاو مه متغيره مع الاارضي وو ضع مكثف ان اطرينا فيد باك من 103 الي 104 فيد باك سالب اوموجب
Tuesday, July 5, 2022
led samsung ,main board ics messurment
ic904 ap7173
in 3.3 on pin 1&2 output 2.5 on pin 9 &10
7&8 vst 3.3 ic401
ic 902 1.2 volt ic 709 ts3431 ilt
((t 910 pin 3 is on off pin 6 is 12 v )
(ic903 t904 pin 2 vcc5 pin 3 5v2 stby )
( ic502 AP2171M PIN 5 5V2 PIN 2 GND PIN 4 ENABLE )
(IC6 STM8095 PIN 1GND 2 RESET 3 3.3V
( D5 GS1M INPUT 3.3 OUT 2.5 )
( IC 407 CD OED SCAN FREQUINCY )
(IC 901 1.8 OK IC3 8HAH )
IC 904 BESIDE USB CODE SMD BA OEG
panel ity400hm09
tsl 24835
amlco lqf6041t0b-04
sm4109-dc /dc/ converter
stvp -12 ckv from 1-4 equal 8 v
max 17108
sumv59 ms important volt for operation
pin 115 reset hw
pin 5 3.3 v
pin 13pin 27 pin 60 1.2 v
pin 21 3.3 stb
pin 34 3.3 stby
pin 52 avdd stb 3.3v
pin 51 and 59 3.3 v pin
103 power on
pin105 pwm 1
pin 106 pwm 2
pim 132 test mode i think for test three color red green blue in case of short line or more lvds line short togather or with ground the cpu stop lvds signal and active this pin to make the panel work on test mode depend on epprom program saved in eeprom
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All reseon of ew problem
All East West West problems are caused by either the processor signal not arriving or weak if the East West console was damaged and burned,...
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