Help with TV PSU LEKE LKP-PL034

VHSFI

Member

Join Date: Mar 2011

Posts: 47

Country: Portugal
#1

Help with TV PSU LEKE LKP-PL034

06-30-2022, 02:09 AM

Hi everyone,

I have this LEKE LKP-PL034 PSU from a Blaupunkt 23/157I TV and need help identifying some components, namely the pwm controller and some blown up component near the optocoupler.
Thx in advance for any info.
Attached Files
Tags: None
lotas

Badcaps Legend

Join Date: Jan 2016

Posts: 4651

Country: Russia
#2

06-30-2022, 02:53 AM

Re: Help with TV PSU LEKE LKP-PL034

1. Pwm - ob2273
2. Tl431
Attached Files

OB2273.pdf (264.8 KB, 14 views)
Comment
VHSFI

Member

Join Date: Mar 2011

Posts: 47

Country: Portugal
#3

06-30-2022, 04:46 AM

Re: Help with TV PSU LEKE LKP-PL034

Thx for info, i will report back after i get the parts.
Comment

Previous template Next

Blaupunkt blaupunkt b32she188tchd-100 no standby light

by cockalomg

Does anyone have a schematic for this board?
I have no output voltages, no standby voltages.
The fullbridge rectifier has a permanent 330V
there is no voltage on the two large black electrolytic capacitors

2 Photos
- Channel: Troubleshooting TVs and Video Sources
11-05-2024, 03:01 AM
optocoupler? B3PBE0000060

by jm1234

Hi,
I'm troubleshooting SN board of Panasonic plasma TV and I'm curious about a component that looks like an optocoupler, it has 5 legs though. I tried to check between legs 1-2, but no diode junction there, it's open. So either that is not a diode there or it's burnt.
For future searches, the part num is B3PBE0000060, the label on the component says 9157 and N219.
Any idea?
...
- Channel: Troubleshooting Power Supplies and Power Supply Design
05-24-2024, 12:51 AM
Blaupunkt 236/2071-GB-3B-HKDUP-UK stays in standby

by Simplebeans

I am currently attempting to repair this television.

Currently the television stays in standby mode (red light on the television) even after attempting to switch it on via the remote control or controls on the television itself. I have opened the television up and there was a electrolytic capacitor that looked bad therefore replaced this however this has made no difference and the same issue still persists.

I am now thinking that this could be a EPROM issue? If yes, i have not yet been able to locate a EPROM dump for this make and model of television, if anyone can help...
- Channel: Troubleshooting TVs and Video Sources
07-25-2025, 04:51 PM
Backlights required for Blaupunkt 50UN265 (HK50D08-ZC56AG-01) - cannot find a source

by alltvrepairs

Hi,

I am unable to locate a set of LEDs for this model. Maybe you know a better source: 4 Strips of 8 Leds per strip.

Tried with model or HK50D08-ZC56AG-01 but no luck so far.

Regards

...
- Channel: Troubleshooting TVs and Video Sources
07-06-2025, 08:29 AM
Blaupunkt BS723 bluetooth speaker

by tjfs

I am trying to fix this item, it works except I can't get it to pair. Searching online hasn't found a manual for it. I am wondering if the Bluetooth module is faulty as it works in analogue audio mode.

The module has two rows of castellated pins for a total of 24. It uses the CSR 57F68 chip together with a flash chip for storage. The main board has an amplifier chip, stereo mixer, power supplies and a microcontroller which seems to have no markings. I think the microcontroller is working correctly and sends commands to the Bluetooth module via SPI although I don't know the protocol...
- Channel: Troubleshooting Audio Equipment
12-24-2024, 09:47 AM
Loading...
No more items.

Help with TV PSU LEKE LKP-PL034

Help with TV PSU LEKE LKP-PL034

Comment

Comment

Related Topics