Re: Samsung QE65Q800TAT
Disconnect the LVDS cable, the backlight is not present. 25Q40 is definitely corrupt.
I need the dump of 25Q40.
Thanks for your interest...
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Re: Samsung QE65Q800TAT
можно ли получить дамп spi w25q40, спасибо
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Re: Samsung QE65Q800TAT
After more detailed checks, the power LED turns on, stays on for about 5 seconds, then turns off and on again. The relay turns on and off, like the power LED, in an infinite loop,
in all this the backlight remains off....
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Samsung QE65Q800TAT
Defect: Off, voltages on the power supply ok.
When you press the power button, the TV makes a clicking sound (activates the relay),
the Power LED continues to remain off.
The 13 volt voltage on the power supply is ok.
By disconnecting the cable from the main board to the power supply, the TV backlight turns on.
I suspect the flaw is the main board, any suggestions are valuable.
I couldn't find any wiring diagrams online.
BN44-01068A LED DRIVER BOARD
BN95-06565A T-CON
BN41-02752A MAIN AV BOARD BN41-02752A (BN94-15931K) - SAMSUNG...
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Re: Factory Resets Listing
Master TL550
Main TP.S506.PC821
Service mode
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LG 42LS570S-ZB,lampeggia led accensione per poi spegnersi .
Chassis CHASSIS : LD22E
MainBoard EAX64307906
Supply Board EAY62608801 EAX64427001
Difetto : lampeggia led accensione per poi spegnersi .
Le alimentazioni sono presenti in uscita dell'alimentatore .
O.K. 24V
O.k 12v
O.K 3.5V_ST
Il problema , sicuramente è sulla MainBoard EAX64307906 .
Ho misurato le seguenti tensioni pin 19 di IC3000=R5F100GEAFB , POWER_DET 1v9 , tensione presente per
pochi secondi , per poi tornare a 0V.
Lo stesso accade per +1.5V_DDR , generata da IC2403=TPS54319TRE
identica situazione...
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HP Pavillon27 All-In-One , completely off.
HP Pavillon27 All-In-One
Model No. 27-r006nl
Product No. 2XC73EA#ABZ
Main board DA0N73MB6D0 REV
Spi 25q64
No light blinks, the fan is not spinning, on the SPI 25Q64F, no voltage.
Voltage presence LED on.
Power supply O.K.
I disconnected the battery from the bios in an attempt to reset, nothing has changed.
Looking for diagram Main board DA0N73MB6D0 REV: D.
Thanks and good job
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LG 43LJ594V-ZA, turned off.
Power: LGP43DJ-17F1
Fault: No power on the secondary.
I have checked diodes and transistors and they are ok. Resistors are o.k.
Replaced IC101 = SSC3S927, IC601 = SSC2016, still no secondary side voltage
I need the schematic and some repair tips.
Thanks and good job .
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LE40A456C2D, no picture
Main -Board BN41-00980B
Power BN44-00197B
T-con T400XW01 V5
Defect: Lighting o.k., audio o.k. no image, scart output image ok.
The F01 fuse is blown, the cause is due to U101 = tps65161 broken. After replacing the U101, I have the following voltage values on the T-CON:
AVDD = 15V
VGL = -6V1
VGMA1 = 15V
VGH = 27V pin 1 of U103 = RT8901
VGHC = 0V
V1D8 = 1v8
V3D3 = 3v3
The VGHC is not present (output from pin 2 of U103 = RT8901). With the replacement of the U103, still no voltage
VGHC.
I gave...
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Lenovo TB-X705L, powered off.
The problem is as described. By inserting the charging connector, the red LED flashes.
Trying to turn it on no sign of life. Then, too, the red led no longer flashes. The tablet shows no signs of life The charging connector is o.k. , the battery measures 3v8 and is charged.
I am looking for schematic of the main-board and what help to proceed with the repair.
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Re: Asus, PC All-in-One modello V230IC , no Power
this files is corrupt
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Asus, PC All-in-One modello V230IC Schematic
After a power surge, the computer shut down and won't boot.
No lights flash, the fan does not spin, on the SPI 25Q128F, there is a voltage of 3v3. When you plug a cell phone into the usb port it starts charging.
I disconnected the battery from the bios, in an attempt to reset, nothing has changed.
Seeking V230IC main board DDR4 schematic, 60pt01g1-mb5 a01 and suggestions.
Thanks and good job .
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Re: Samsung Ue40H5500AY , T-con problems .
with external power supply with voltage 30v I have a current of 110 milliamps.
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Samsung Ue40H5500AY , T-con problems .
T-Con RUNTK5538tp
Hi, the TV has problems with the screen, the image is dark and undefined.
There is no VGH power supply.
With an external 32 volts power supply everything is ok.
How is VGH managed?
what can i check?
Thanks and good job...
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Samsung UE40F8000SZ, ignition problems
Power : L46U2P_DSM BN44-00635
Chassis U90A
Display CY-KF4000DSLV1H
MAIN board
MODEL : FOX_APMP_PRO
CODE : BN41-01959C
MODEL : BN41-01959
SYMPTOM OF FAILURE:
Continuous cycles of the relay. The logo on the screen appears and then returns to off, in a continuous loop.
Sometimes it turns on smoothly.
The mains are ok.
I forced power on (3v3), the problem remains.
I suspect a power supply problem.
Thanks and good job .
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LG TV 28MT42VF-PZ Stuck in LCN conflict
Main board: 715G8524-MOF-B00-004K
Power: 715G7801-P01-W04-0H2H
Hi, the following TV is stuck in the LCN conflict (See photo1)
When I try to give the ok from the remote control, the TV turns off and on again. When no command is given, it remains lit on the channel.
I tried to update the firmware following the procedure of the LG site, but the usb key is not initialized.
Thanks for your suggestions ....
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Re: AKAI AKTV401 , sound ok, no image .
backlighting is ok, as I wrote at the beginning of the topic...
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