I need your help with a Toshiba 50" QLED (Vestel made) TV.
The TV is: toshiba 50QF5D53DB 2402.
Additional details:
Screen: VES500QNZB-P5-Z71
T-con: HF5000UB_F20_CPCB_V01
T-con: STCON495GS01U35392321349
The TV has the following fault:
Powers on, no image or sound, but DOES have backlight
I have performed the following testing:
1) I have disconnected each of the t-con to gate driver flexes in turn. No image appeared on the screen after each flex was disconnected.
2) T-CON testing:
++++++++++++++...
dfear
Senior Member
Last Activity: Yesterday, 10:41 AM
Joined: 03-09-2013
Location: Bristol
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Toshiba 50QF5D53DB - Powers on, no image or sound. Has backlight.
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ASUS Vivobook X1500e - no image and no backlight. Can this be fixed?
ASUS Vivobook X1500e came in with no image and no backlight.
Motherboard is: x415ea.
Current knowledge/observations:
RAM, LCD & LID sensor = oood.
LCD connector - AC_BAT_SYS_ is present.
D4501 schottky diode - LCD_BACKOFF# is always 3.3V, whether the lid is closed or not.
CPU thermal signature seems normal.
Laptop boots and outputs to HDMI.
Is part of the CPU bad or can this be fixed? -
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Yes, The IR receiver on both sensor boards have been confirmed faulty with an oscilloscope....Leave a comment:
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Check here: https://www.badcaps.net/forum/troubl...52#post3342852
This TV was working until the issue with the power supply board occurred. The main board and the ir sensor board are (to the best of my knowledge) the one from the factory and are "paired" together. The replacement main board and sensor boards are quite possible not.
FYI: I am the repair shop....Leave a comment:
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The joystick button is on the main board....Leave a comment:
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I have taken many voltage readings on both original and replacement main boards and IR sensor boards.
Here are the results:
Voltage results are in pin order (1-5).
Original main board.
====================
Original IR Sensor
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STANDBY
--------------
Gnd
2.96
.223
.026 or .077
11.85
ON
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Gnd
.0215
11.59
.0765
11.83
Replacement IR Sensor
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STANDBY
Gnd
2.84
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I have tried 2 different IR sensor boards, each with 2 different main boards, and both sets of tests have very similar results....Leave a comment:
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I have tried new batteries. the button on the TV does work....Leave a comment:
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The two IR sensors have the same part number: 17LD186....Leave a comment:
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I have done that today. There is no change in voltage on any pin (of the is sensor connector board on the main board). I Have done the same test with two mains boards and two IR sensor boards. All tests result in no reaction from the remote control....Leave a comment:
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hitachi 75hl16t64u - not responding to remote control
I have a hitachi 75hl16t64u tv in for repair and it is driving me crazy.
It came in for a power issue which I have finally resolved by replacing the power supply.
The current issue is that the TV does not respond to the remote control. I have replaced the IR sensor board with a used one but the fault persists.
Anyone have a clue how to fix TV?
FYI: I have checked the remote work s by pointing it at my camera on my phone.... -
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Re: Macbook Air A2337 Schematic & SilkScreen – 820-02016 Schematic & SilkScreen (Prov
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Re: 820-01521 schematic
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HP Pavilion x360 - 14-ba104na - 3 long and 5 short caps lock code.
I have a "HP Pavilion x360 - 14-ba104na" in for repair. The caps lock flash 3 long and 5 short.
HP says this error means:
The red light blinks three times, and then five, short white light blinks (3 long red, 5 short white)
This condition indicates that the computer does not detect the processor (CPU).
Does this mean the CPU is dead or is there another cause for this fault?
No activity results to display
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