-
Hi folks.
I have a Toshiba 50L1350UC which almost never powers on. This situation started with it occasionally not powering on, then progressively got worse until the owner (my aunt) decided to just leave it on 24/7. Whenever she accidentally powered it off, she would continuously cycle its power bar and press the Power button again and again until it turned on. Eventually she gave up and it moved to my house.
I've already checked the standby voltage, and it's a solid 5.1V, as labeled on the board. I tried to check the bridge rectifier's output but I got a spark and... -
Good evening Forum People. I just got finished fixing my plasma and now my led has died. Done some searching and some testing and I rushed out and replaced the t-con board thinking that was the problem. Mistake. I have sound but no picture. Right now it's too light out to do the flashlight test so I will post that later. Here's the test results.
No back light; voltages with TV on are:
L2- 15.3VDC
L2+ 76.9VDC
L1- .3VDC
L1+ 76.9VDC
Cable unplugged
L2+ 130v down to 76v
PWM: .2V
5.1V: 5.1V
BL_On/Off: 3.2V... -
this unit has for one second a short flash and after that no picture and has sound
the voltage is this WITH or WIHOUT connector plugged
start as 130 v for both l1 and l2 for one second and after is
L2+ 77DC
L1+ 77VDC
measured on chassis ground
and i repeat with coonector plugged or unplugged (for led)
any ideas
thanks -
No back light; voltages with TV on are:
L2- 19VDC
L2+ 76.9VDC
L1- 27.4VDC
L1+ 76.9VDC
PWM: .2V
5.1V: 5.1V
BL_On/Off: 3.3V
Power_TV: 3.5V
AC Detect: 3.5V
5.1V: 5.1V
GND: 0V
12V_LNB: 12.4V
GND: 0V
12V_AUD: 12.4V
GND: 0V
GND: 0V
12Vcc: 0V
12Vcc: 12.4V
12Vcc: 12.4V
Pwr board: PK101W00501
Based on what I have read in this forum; I am thinking of replacing the pwr supply board (PK101W00501); is this reasonable?... -
Hi, I got this Toshiba TV without backlight.
Flashlight test : Yes I can see the image
Voltage test on L1+ : turn on tv, backlight flash for 1/2 second, voltage goes to 90v then 76v
Tried to disconnect PWN : No more backlight flash, voltage won't go higher then 76v on L1+
What you guys think? bad led or something else?
Working...
😀
😂
🥰
😘
🤢
😎
😞
😡
👍
👎
☕