TEAC LEDV32U83HDR(takes awhile to come out of standby)

[Amraks]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

Hey vinceroger this problem seems intermittent.

as sometimes when i switch the set off at the power switch it will work fine.
then you play with switching it off and on at the button a few times it will fault like above mentioned.

I have done a factory reset on it, thats when the set behaves and fires up with out a problem

[Amraks]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

Hey Vince thanks for the reply.

The problem seem intermittent as the Set will fire up fine most of the time.
You have to flick it off with the mains switch on the TV and then flick it back on and press the button.

also making sure I am hearing a whine coming from the transformer before pressing.
I am wondering if its a transformer winding or possibly filter caps as these have not been changed.

[vinceroger69]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

possibly worth trying replacing the caps to rule them out maybe budm or tom might have ideas i hate intermittant faults just when you think you found and solved it they come back.

[Amraks]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

Yeah intermittent faults are annoying.

[Amraks]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

check the factory menu

Software checksum is ok. rules out epprom.

[tom66]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

Software checksum refers to the flash, not the EEPROM.

[Amraks]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

I see.

Could the eeprom be faulty?

[Amraks]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

I have just done a little test on the PSU.
Disconnected everything attached to it.
Tested
con2
(12v)13 & 12 = 14v
(5v)8 & 7 = 5v
(standby)6 = 5v
(ps-on)5 = 0v
(5v)4&3 = 5v

aren't all these meant to be switched off except for the standby.

[Amraks]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

Anyone have any idea.

I have posted some pictures of power supply.

Seems like the power supply is stuck on.

[Amraks]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

I have had a look at 3 resistors.
2x 250 OHMS tolerance 5% = 150
0.68 OHMS tolerance 5% = 9

Is this correct?

[Amraks]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

The 2 resistor were actually meant to be 150, I thought a band was red when it was brown.

Blue Grey silver gold = 0.68 5%
I am only getting 0.9 from this one.

[Amraks]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

I have fixed the main switching on problem I managed to reinstall the firmware.

We have transformer sequel still.
Would replacing a resistor 0.68 that is reading 0.9 fix this?

[Amraks]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

transformer squeal*

So you switch it off and you can hear a audible pulse coming from the transformer.

would this 0.68 ohm's that is reading 0.9 be causing this squeal or pulse from the transformer.

[Amraks]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

Here is the firmware if anyone wants it.
as its not on teac's website anywhere.

If u have the occasionally turning on problem it can be fixed with a usb key and this update.

Extract from Zip file first then copy to usb bin file, making sure file name matches "BIN_MSD_306.bin"
Obviously with out the quotes.

[Caleb]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

I would look for a leaky diode one that is loading down the standby supply but not enough to keep it from functioning. I only see one on the board excepting the bridge, maybe one of the output diodes. Resistors dont go down in value -I would say that resistor is fine

[Amraks]

Re: TEAC LEDV32U83HDR(takes awhile to come out of standby)

Thanks tv has gone back to owner but if it ever comes back I will look into it more.