Forum: Troubleshooting TVs and Video Sources
06-26-2021, 08:36 AM
|
|
Replies: 2
Views: 373
Re: Toshiba 42HP84...Troubleshooting...
All,
Anyone have any experience with Toshiba Plasma TVs?
From the dead block, not complete vertical or horizontal line, and my previous experience I am thinking its a buffer, some kind of...
|
|
Forum: Troubleshooting TVs and Video Sources
06-26-2021, 08:28 AM
|
|
Replies: 4
Views: 402
Re: Toshiba 46RV530U Issue...
CapLeaker,
Again thanks for the response!
I will take a look at the TAB bonds, clean the TCON Cables, and let you know what I find.
I am hoping this is fixable, if not I might have some boards...
|
|
Forum: Troubleshooting TVs and Video Sources
06-25-2021, 08:24 PM
|
|
Replies: 4
Views: 402
Re: Toshiba 46RV530U Issue...
CapLeaker,
Thanks for the reply!
I need to open this thing up to get a better look at its interior...I have had it in "TEST" mode to see if I could recreate yesterdays experience today. I can not...
|
|
Forum: Troubleshooting TVs and Video Sources
06-25-2021, 10:52 AM
|
|
Replies: 4
Views: 402
Toshiba 46RV530U Issue...
All,
I got this TV from my brother and I plan to use it in my Man Cave as it has a wide selection of inputs which I will utilize with different equipment.
Anyways the unit was stored in a...
|
|
Forum: Troubleshooting TVs and Video Sources
06-25-2021, 09:34 AM
|
|
Replies: 2
Views: 373
|
|
Forum: Troubleshooting TVs and Video Sources
06-25-2021, 09:31 AM
|
|
Replies: 2
Views: 373
Toshiba 42HP84...Troubleshooting...
All,
I saved another one from the landfill. The plan is to use this one in the kids room
.
The units bezel is really beat up (scratches-deep). My first look at the unit I passed on it but came...
|
|
Forum: Troubleshooting Audio Equipment
02-11-2021, 09:25 AM
|
|
Replies: 41
Views: 3,691
Re: onkyo ht-r290 - My Next Project
tibimakai, madan1, frankusb, and Psmith,
All thanks for the help on this project!
It came out successful! The IC came in and I finally got a chance to put it in place.
It appears from my...
|
|
Forum: General Electronics Technical Discussion
01-04-2021, 03:23 PM
|
|
Replies: 14
Views: 1,727
|
|
Forum: General Electronics Technical Discussion
01-03-2021, 07:35 PM
|
|
Replies: 14
Views: 1,727
Re: Function Signal Generator Some Questions...
STJ,
I ended up picking up a LOGICAL ANALYSIS TEST KIT LTC-2 made by Continental Specialities. Its identical to the One from Global Specialities.
A couple of my firiends (local) have these kits...
|
|
Forum: General Electronics Technical Discussion
12-28-2020, 10:13 AM
|
|
Replies: 14
Views: 1,727
|
|
Forum: General Electronics Technical Discussion
12-21-2020, 03:09 PM
|
|
Replies: 14
Views: 1,727
Re: Function Signal Generator Some Questions...
STJ,
The video below gives a rough review of it;
https://www.youtube.com/watch?v=96XTelPZnfA
Basically its a LCR (Inductance (l), Capacitance (C), and Resistance (R))) meter. There are quite a...
|
|
Forum: General Electronics Technical Discussion
12-21-2020, 09:24 AM
|
|
Replies: 14
Views: 1,727
Re: Function Signal Generator Some Questions...
STJ,
Thanks for the response again!
I actually do have a small stack of projects that are Audio/Amplifier related. Covid-19 has had me organize the workshop and garage and I had more than a few...
|
|
Forum: General Electronics Technical Discussion
12-20-2020, 06:33 PM
|
|
Replies: 14
Views: 1,727
Re: Function Signal Generator Some Questions...
STJ,
For household repair items what Frequency should I look for on my first function Signal Generator. I assume the different types of "Waves" are fairly standard.
Any speicific brands?
...
|
|
Forum: General Electronics Technical Discussion
12-20-2020, 10:34 AM
|
|
Replies: 14
Views: 1,727
Re: Function Signal Generator Some Questions...
All,
Does anyone have any experience with a Function Signal Generator and how to use one with a Oscilloscopt to troubleshoot issues?
Also what I should look for in my first one. Like many of my...
|
|
Forum: General Electronics Technical Discussion
12-15-2020, 04:31 PM
|
|
Replies: 14
Views: 1,727
Re: Function Signal Generator Some Questions...
STJ,
Yes, I have a Rigol DS1054Z with all the "Keys" installed. Also Probes etc.
I have used it a time or two just for educational purposes but not really much on troubleshooting things.
...
|
|
Forum: General Electronics Technical Discussion
12-15-2020, 01:38 PM
|
|
Replies: 14
Views: 1,727
Function Signal Generator Some Questions...
All,
I have been collecting/purchasing equipment as I go along my "Electronics Journey". Thanks for all those who have helped me on this Journey and have educated me... I really appreciate this...
|
|
Forum: Troubleshooting Audio Equipment
12-14-2020, 12:28 PM
|
|
Replies: 41
Views: 3,691
Re: onkyo ht-r290 - My Next Project
tibimakai,
Thanks for the suggestion but unfortunately I have already put in the order on Ebay.
The fellow has quite of few different Amp ICs for sale so I am thinking I should get a good one.
...
|
|
Forum: Troubleshooting Audio Equipment
12-14-2020, 07:59 AM
|
|
Replies: 41
Views: 3,691
Re: onkyo ht-r290 - My Next Project
madan1,
Thanks for the help!
I will probably pick up the used one in the hopes of getting it fixed over my Christmas break.
I will let everyone know the outcome of the fix!
Thanks again!...
|
|
Forum: Troubleshooting Audio Equipment
12-13-2020, 10:24 PM
|
|
Replies: 41
Views: 3,691
Re: onkyo ht-r290 - My Next Project
madan1,
1) I remeasured the voltage on pins 1 & 2. Both the Left and Right IC (Right IC pins 1 & 2 were cut) and I measured the bottoms remaining pins. They measued both ~49.8 Volts and the polarity...
|
|
Forum: Troubleshooting Audio Equipment
12-13-2020, 04:20 PM
|
|
Replies: 41
Views: 3,691
Re: onkyo ht-r290 - My Next Project
mandan1,
pins 1 and 2 on both ICs are 24.95 volts.
Cutting pins 1 and 2 on the right side allowed the amp to stay on and put out music on half the channels.
I assume just replacing the...
|
|
Forum: Troubleshooting Audio Equipment
12-13-2020, 11:52 AM
|
|
Replies: 41
Views: 3,691
Re: onkyo ht-r290 - My Next Project
All,
Thanks for the help,
Got the furnace all set. :)
Now to something fun.
There appears to be NO shorts between ground and 4 5 6 7 17 18 power amp outputs.
The 6 sets of resistors...
|
|
Forum: Troubleshooting Audio Equipment
12-11-2020, 02:26 PM
|
|
Replies: 41
Views: 3,691
|
|
Forum: Troubleshooting Audio Equipment
12-10-2020, 01:40 PM
|
|
Replies: 41
Views: 3,691
Re: onkyo ht-r290 - My Next Project
Guys,
I located a better Service Manual (My Google Drive);
https://drive.google.com/file/d/15IyActv6FvyL00gLuDF3SDxqUl6pUyC1/view?usp=sharing
Thanks
Chris
|
|
Forum: Troubleshooting Audio Equipment
12-10-2020, 01:35 PM
|
|
Replies: 41
Views: 3,691
Re: onkyo ht-r290 - My Next Project
All,
I have located the below datasheet (put it on my google drive);
https://drive.google.com/file/d/14G_-pC3tYaXBHMdCGhMVuDa7s6rigMVz/view?usp=sharing
The two I have are STK443-530.
In the...
|
