clicking sound tv 3Y11- LC863324A in primer and all measurement parts ok i replace cap in primer 102j 2kv
but the sound is still clicking
and seprate sound volt and apply 12v external so i focus on 110v i think the diode is bad but it ok and the problem is i change the tow cap s 160v 100 and still clicking
so i return the olds cap but the i say sure the cap on the 110 diode is bad cause sometimes it measure ac hv volt and the sond stop and the 20 volt ok 13 v is ok i think the problem is solved but the 110 is 71 volt so i cut the 110 on the flyback it return 110 i replace 160v100 mf by new so the tv is work fine so the problem was in the ceramic cap and effect on the chemical cap or verse the chemical cap after many fail to charge damage the ceramic cap
Saturday, April 18, 2020
Sunday, March 22, 2020
lcd problem stby and abnormal picture viewpia lc-37le11
the picture is take long time to appear and after appear it take many ab normal picture strip line so after chick i find there is many cap 50-470 changed i remove all cap and measure normal most cap is for inverted lamps and pwm switch i put my finger on the ic it so hot and after chick i find the solder is dry and the reason for hot ic is the damper shottky diode leg is separated and in cold case after 2 minute work but in most case didnt work so i solder it and change stby 5 v and after that the ic work fine no heat on it and no voltage drop no stby case cause of protect mode on pwm inverter ic
and sold the coil of hight volt
Wednesday, January 22, 2020
SIEMENS BOXCAR
SIMENS VDO K10 MSE
MSE 35/6S2
FD07W18
M003FOR02021
MC33186OH
ACL11827-BD ATM36N
20N4GCL
4651537
W99170029
FD7U3AH V5O3G
FD743AH V503GS
AMIS SDIA
0707HT ATM4603
12PIN DIP
73D49LT
IP IC8101DW
MSE 35/6S2
FD07W18
M003FOR02021
MC33186OH
ACL11827-BD ATM36N
20N4GCL
4651537
W99170029
FD7U3AH V5O3G
FD743AH V503GS
AMIS SDIA
0707HT ATM4603
12PIN DIP
73D49LT
IP IC8101DW
Monday, January 6, 2020
draw schematic line of ic bosh dudge box car
DAIMELAR CHRYSLER 354AE
MODEL TEH2366E1XDY
solve secret ic of car box no datasheet or schematic
like 1736ab SK 1837
SOME FET OF THE SAME BOX USE FET SOT DIP 8PIN WITH
TOW GATE PIN FOR BOTH TRANSISTOR
LIKE FDS8958A AND
SOT 32-6 COUPLED BETWEEN PROCESSOR AND IC POWER MANAGEMENT
MITSUBISH 2003
m355a fet out coupled with ic drive 66hl xx
so there is simplified data sheet of m355a and 66hl xx
the specification of ic fet drive current and volt to the fuel injector
https://alltransistors.com/mosfet/transistor.php?transistor=4170
https://alltransistors.com/mosfet/transistor.php?transistor=4170
SOME IC OF CAR 8DIP
A65AP G18N40B
3NO8LR2
AD603AR
IRF7626
VN5160S
JA1050
PD1AC
-------------------------------------------------------
MAX6675IS
L9637
TS3702I
Tuesday, December 17, 2019
how to perform best bga soldering
by heater gun you must re flow in 350 c for 50 second and the sn is melted by 200 c and cause of heat dissipated in air and in the ceramic surface and by experiment the 350 c and little airflow the bga will remolding very will
in diagonal moving and in orthogonal to make x moving on ic chip after that you heat from outside to inside way in circular moving
in diagonal moving and in orthogonal to make x moving on ic chip after that you heat from outside to inside way in circular moving
in this case you garanty the chip will not expansion from center and the the heat will not rise the chip and most ball will melted and connect to ic chip
another benefit website
https://www.google.com/url?sa=i&source=imgres&cd=&cad=rja&uact=8&ved=2ahUKEwi3nfriwL3mAhUB66QKHTR7BAYQjhx6BAgBEAI&url=https%3A%2F%2Fwww.industrial-lasers.com%2Fwelding%2Farticle%2F14073104%2Flaser-soldering-compression-method-for-finepitch-thindie-applications&psig=AOvVaw2cRvt3Oagy3mJ5nfEll613&ust=1576700377824075
Monday, December 16, 2019
Wednesday, December 11, 2019
PROBLEM IN ALL 5562A AND 6861AAQ Q1 SMD MOSFET N
ST316A040-1 VER3.1 PANEL
HC320SXN-VSFP3-21XX
EAJ62431801
CS 11002 LVDS INPUT SIGNAL
KLSTM111
AND IC 5562A
6861AAQ IS SAME 5562A AND I FIND SHORT ON OUT PUT PIN 9
AND IN LG LED I FIND Q 1 IS SHORT WITHOUT BURN OUT
HIS NUMBER IS SMD CODE 123Z OR SMD CODE 132 N SMD 132Z IT IS THE SAME FET TRANSISTOR RESPONSIBLE TO VAA1 TO FEED THE GAMA IC AND ADD 1 VOLT CASCADE IN 2 STAGE TO INPUT *2
16*2 =32VOLT
https://www.onsemi.com/pub/Collateral/BSS123-D.PDF
IN SAMSUNG TECON USED THIS TRASISTOR
7N6
https://alltransistors.com/pdfview.php?doc=zxmn6a07fta.pdf&dire=_upd-mosfet
https://www.youtube.com/watch?v=cI2L61dzj6k
HOW THIS IS WORK
FIRST VOLT IS 3.3 PRODUCE ON THE SWITCH PIN 13 14 BUCK CIRCUIT
THIS 3.3 VOLT FEED TO PIN 9 TO ENABLE PIN TO MAKE OTHER BUCK WORK
THE SWITCH TAKE VOLT FROM 12 VOLT INPUT INTERNAL CHIP AND AFTER MONITOR THE VOLT INTERNAL THE FET VOLT SWITCH TO FLOW THE VOLT TO THE DRAIN OF MOSFET N CHANEL INSIDE THE CHIP INSIDE THE IC WILL MAKE THE VOLT ON SWITCH 12 11 AND INTERNAL PWM CIRCUIT WILL WORK WITH INTERNAL MOSFET AND WILL PRUDS 3.3 VDD VOLT
AND 3.3 WILL CONTROL IN OTHER CAUSE 3.3 IS DIGITAL ENABLE AND SMALL VOLT AND IF 3.3 VOLT FEED BACK OK VIA R4 THE AUTHOR PWM ON OTHER F MOSFET SWITCH WILL WORK DRAIN OF 25 -26 INTERNAL MOSFET
AND PRUDES VAA 1 AND MOSFET Q1 INTERNAL CONTROL IN AMP OF 16 VOLT TO FEED THE GAMA IC AND MAKE VGA IN CASCADE DIODE IN D5 TO A7 ADD VOLT WITH DRIVE B VOLT TO 2 STAGE 2*16 =32 VOLT + V DRIVE B
HOW IT WORK
AND WHEN NO VOLT ON PIN 36 DRIVE P
VOLT CHARGE C35 C32 C37 AND AND
AND THE PIN36 WILL CHARGED BY NEGATIVE VOLT
AND WHEN THE PIN 36 DRIVE IS POSITIVE VOLT IT WILL ADD TO THE VOLT POST IN C35 VIA A7 DIODE AND C27 VIA A72 DIODE
LIKE WHEN YOU ADD SERIAL BATTARE
AND VGL PRODUCE IN REVERSE WAY THE
SO THAT IS VGH INTER FEED BACK PIN 39 TO CONTROL ON PWM ON PIN 25-26
AND OUT THIS VOLT ON VGH M IS NOT USED IN THIS CIRCUIT AND CONTROL VGHM IS CONTROL IN WITH VGL IN THE VOLT APPLY ON MOSFET GATES OF LCD VERTICAL LINE AND (( CKV1 CJVB1 CKV2 CKVB2 AND STV VERTICAL FREQUNCY IS THE SEQUNCE CONTROL IN SEQUENCE OF OPEN CLOSE ODD EVEN VERTICAL LINE BY PULSE SCHEME SHAPE
AND CKV1 REVIRSE CKVB1
HC320SXN-VSFP3-21XX
EAJ62431801
CS 11002 LVDS INPUT SIGNAL
KLSTM111
AND IC 5562A
AND IN LG LED I FIND Q 1 IS SHORT WITHOUT BURN OUT
HIS NUMBER IS SMD CODE 123Z OR SMD CODE 132 N SMD 132Z IT IS THE SAME FET TRANSISTOR RESPONSIBLE TO VAA1 TO FEED THE GAMA IC AND ADD 1 VOLT CASCADE IN 2 STAGE TO INPUT *2
16*2 =32VOLT
https://www.onsemi.com/pub/Collateral/BSS123-D.PDF
IN SAMSUNG TECON USED THIS TRASISTOR
7N6
https://www.youtube.com/watch?v=cI2L61dzj6k
HOW THIS IS WORK
FIRST VOLT IS 3.3 PRODUCE ON THE SWITCH PIN 13 14 BUCK CIRCUIT
THIS 3.3 VOLT FEED TO PIN 9 TO ENABLE PIN TO MAKE OTHER BUCK WORK
THE SWITCH TAKE VOLT FROM 12 VOLT INPUT INTERNAL CHIP AND AFTER MONITOR THE VOLT INTERNAL THE FET VOLT SWITCH TO FLOW THE VOLT TO THE DRAIN OF MOSFET N CHANEL INSIDE THE CHIP INSIDE THE IC WILL MAKE THE VOLT ON SWITCH 12 11 AND INTERNAL PWM CIRCUIT WILL WORK WITH INTERNAL MOSFET AND WILL PRUDS 3.3 VDD VOLT
AND 3.3 WILL CONTROL IN OTHER CAUSE 3.3 IS DIGITAL ENABLE AND SMALL VOLT AND IF 3.3 VOLT FEED BACK OK VIA R4 THE AUTHOR PWM ON OTHER F MOSFET SWITCH WILL WORK DRAIN OF 25 -26 INTERNAL MOSFET
AND PRUDES VAA 1 AND MOSFET Q1 INTERNAL CONTROL IN AMP OF 16 VOLT TO FEED THE GAMA IC AND MAKE VGA IN CASCADE DIODE IN D5 TO A7 ADD VOLT WITH DRIVE B VOLT TO 2 STAGE 2*16 =32 VOLT + V DRIVE B
HOW IT WORK
AND WHEN NO VOLT ON PIN 36 DRIVE P
VOLT CHARGE C35 C32 C37 AND AND
AND THE PIN36 WILL CHARGED BY NEGATIVE VOLT
AND WHEN THE PIN 36 DRIVE IS POSITIVE VOLT IT WILL ADD TO THE VOLT POST IN C35 VIA A7 DIODE AND C27 VIA A72 DIODE
LIKE WHEN YOU ADD SERIAL BATTARE
AND VGL PRODUCE IN REVERSE WAY THE
SO THAT IS VGH INTER FEED BACK PIN 39 TO CONTROL ON PWM ON PIN 25-26
AND OUT THIS VOLT ON VGH M IS NOT USED IN THIS CIRCUIT AND CONTROL VGHM IS CONTROL IN WITH VGL IN THE VOLT APPLY ON MOSFET GATES OF LCD VERTICAL LINE AND (( CKV1 CJVB1 CKV2 CKVB2 AND STV VERTICAL FREQUNCY IS THE SEQUNCE CONTROL IN SEQUENCE OF OPEN CLOSE ODD EVEN VERTICAL LINE BY PULSE SCHEME SHAPE
AND CKV1 REVIRSE CKVB1
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ST316A040-1 VER3.1 PANEL HC320SXN-VSFP3-21XX EAJ62431801 CS 11002 LVDS INPUT SIGNAL KLSTM111 AND IC 5562A 6861AAQ IS SA...
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