Techwood 32884HD flashing blue orange

[london-freddie]

Hi again looking for some help with this tv
Techwood 32884HD which will not start up just flashes blue and orange leds on the front panel
when i first looked at it with no testing i changed the power board Vestel 17PW25-3 thinking that would be the problem, however same no power up, i have just now changed the inverter board, still the same flashing blue/orange.
Anyone give me an idea now where to start looking, maybe software or mainboard faulty
thanks in anticipation

[london-freddie]

Re: Techwood 32884HD flashing blue orange

pics

[dick_barton]

Re: Techwood 32884HD flashing blue orange

There isn't a lot left to change. As london-freddie says some nice sharp pictures of each circuit board showing the connectors and voltage labels alongside are always a good start when seeking help.

[london-freddie]

Re: Techwood 32884HD flashing blue orange

not sure if the pics are downloading ?

[london-freddie]

Re: Techwood 32884HD flashing blue orange

pic 2 ?

[vinceroger69]

Re: Techwood 32884HD flashing blue orange

One of your pictures is showing so far what the mainboard part number used in this set and as post 3 some good clear pictures of the connectors etc will help us.

[london-freddie]

Re: Techwood 32884HD flashing blue orange

hope these help

[london-freddie]

Re: Techwood 32884HD flashing blue orange

i am doing something wrong somewhere

[london-freddie]

Re: Techwood 32884HD flashing blue orange

sorted

[london-freddie]

Re: Techwood 32884HD flashing blue orange

anything i need to show picture of now ?

[dick_barton]

Re: Techwood 32884HD flashing blue orange

In the attached photo what is the printed legend alongside the connectors. It may be printed on the underside of the circuit board
For example


CON 100
Pin 1 = 5VSTY
Pin 2 = GND
etc

[dick_barton]

Re: Techwood 32884HD flashing blue orange

There is some information in this post which may help.

https://www.badcaps.net/forum/showth...light=17mb60-2

[london-freddie]

Re: Techwood 32884HD flashing blue orange

hi there is nothing printed alongside the connectors top or bottom of board except pl805 and pl804, no voltages or grounds etc.

[london-freddie]

Re: Techwood 32884HD flashing blue orange

dick nothing coming on screen to try that last post

[london-freddie]

Re: Techwood 32884HD flashing blue orange

anyone know the pinouts on PL804 and PL805 on this Vestel 17PW25-3

[dick_barton]

Re: Techwood 32884HD flashing blue orange

Measure the voltages on the two connectors marked in a red box and check against the service manual attached to see what is missing.

[london-freddie]

Re: Techwood 32884HD flashing blue orange

PL804 inverter connector has 25v at pins 1-5

[dick_barton]

Re: Techwood 32884HD flashing blue orange

There's also pins 10,11,12 on that connector.
PL803 Pins 1 - 10 ?
PL805 Pins 1 - 28 ?
PL800 Pins 1 - 6 ?

[dick_barton]

Re: Techwood 32884HD flashing blue orange

There's a main board for sale if it ends up as being faulty
http://stores.ebay.co.uk/akcelestialukltd/
£15.50 +£4.00 p&p

[london-freddie]

Re: Techwood 32884HD flashing blue orange

PL805 connector to main board all voltages seem to be ok 12v @11, 5v @17 19 21 etc.