Re: Panasonic TH-42PA60A 7 blink issue
Thanks again Tom.
Ill think i'll def shelve it now until I can source a cheap replacement SC board
Rekk
New Member
Last Activity: 09-23-2015, 02:50 PM
Joined: 11-26-2013
Location: Tauranga
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Re: Panasonic TH-42PA60A 7 blink issue
Thanks Tom
With SU, SD and both at the same time, disconnected completely from SC I am still getting 7 blinks.
From what I have read I should be getting 6 blinks if it is definitely the SC board.
Is this correct?Leave a comment:
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Re: Panasonic TH-42PA60A 7 blink issue
Can someone please tell me how to isolate SU/SD boards on this model so I can rule them out. Just really need to know what to jumper on SC board.
I would say I might have to shelve this unit until I can source an SC board for it as fixing at component level might be beyond me.
If anybody is after the service manual for this model let me know.
ThanksLeave a comment:
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Re: Panasonic TH-42PA60A 7 blink issue
Ok, heres my theory and im most likely wrong due to being reasonably new at this.
Service manual states 7 Blinks = Driver SOS2 (SC floating voltage area) Checkpoints SU, SD, SS board.
Block diagram shows TPSOS7 - SC floating part SOS Det, LED blinking 7 times, +5V(SC1), +5V(SC3), Vscn, VAD (-90V)
If im reading this correctly and the Vscn, VAD and Vset are almeasuring correctly, that leaves SC1 and SC3 voltages that could be causing the prob.
Im assuming that the SC1 and SC3 are floating +5v and my previous...Last edited by Rekk; 11-28-2013, 09:06 PM.Leave a comment:
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Re: Panasonic TH-42PZ8BA: candidate for worst bodge attempt ever?
Wow.....just wow. Im a poor solderer but even I could have done a better job.
Tom, your knowledge and skills impress me.Leave a comment:
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Re: Panasonic TH-42PA60A 7 blink issue
Ok, i've done a couple of tests on the SC and SS boards at the test points. In brackets are the voltages that the points are meant to test at (if im right)
SC board
-Vsus 176.1v - 175.9v (175v)
-15v 15.9v
-Vset 236v (232v)
-VAD -89.9v (-90v)
-Vscan 35v (VAD + 125v)
SS Board
-Vsus 176.1v - 177.7v (175v)
-15v 15v
-VDA 65.9v (unsure what voltage this meant to be)
-Ve 151.9 (151v)
The only 2 that gave me concern was SC1 (SC board) and SS1 (SS board), both...Leave a comment:
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Re: Panasonic TH-42PA60A 7 blink issue
All i have plugged into the TV is my sky digital box to AV1.
AV2, AV3 and HDMI have black no signal screen.
Analogue input shows normal snowy image of no signal.
TV cannot stay on with any of the current inputs.
Measured VSUS and 15v on SC/SS, both are in what appears to be correct settings.
VSUS 175-176v, 15v - 15v. Sticker on TV states 175v VSUS and 151v Ve.
As far as whether they are stable, the TV is not really on long enough for me to judge.
I did notice the other day when i lowered...Leave a comment:
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Panasonic TH-42PA60A 7 blink issue
Hi all.
Ive recently picked up a faulty TH-42PA60A with the 7 blink issue.
Previous owner had done several tests himself and his conclusion was the SC board.
Here are the tests I have done so far.
1. Plug tv in, hit power button, red stanby light comes on and stays solid, use the remote to power on tv, relays click, picture appears then set powers off after 1-2 secs to 7 blinks. I can continuously press tv/av to cycle through the channels but as soon as i stop and picture appears tv shuts down. Have also watched the sc and ss cards to see what LEDS light... -
Re: New Members - please post your introductions here
Hi all.
Im Neil from New Zealand, single father of 2 kids. I have been in the computer hardware industry for the last 15 or so years but have had an interest in computers since the days of the ZX Spectrum.
Fairly new to electronic repairs although I have done some repair work on ps1, ps2, xbox (mostly chip mods) and xbox 360, none of which were circuitry repair.
I have just picked up a 42" plasma TV which is faulting and thought I would try my hand at repair to find I know nothing
So I am here...Leave a comment:
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