| Subject | Text |
| The excessive heat, probably from the output stages is likely due to excess current through the driv |
| PHILIPS TV CHASSIS A02E Suddenly Restarts | I have a Philips TV 29PT8509 . It suddenly restarts . It looks like a malfunctioning protection . I |
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| Welcome to the Board, Hugh. It is correct that the HOT doesn't appear to blow when the set is powere |
| hello torbjorn,
yes i am using a cheap (sears craftsman)digital multimeter with a 200/600vac settin |
| temperature switch | try using a digital multimeter on dc volts, supply 12 volt supply with series resistor to vary outpu |
| [quote:e49eaef5fd="vtech"]Should not be difficult to determine as to why your sub/w is not working. |
| Aiwa Tv, Model No TV-C201KER is not turning on, Help Plz. | Hi, I have Aiwa Tv of Model No TV-C201KER, but now it is not working, I have checked the power cord, |
| Samsung 4215W STK convergence amps keep failing | Hello. Several months ago my blue convergence went out on my Samsung 4215W RPTV. The blue would mov |
| Re: Motherboard missing chip capacitor | [quote:c57cf54f27="kaaos"]hello i have a nice motherboard and unfortunately the floppy drive hit it |
| manual for PHILIPS PM 2534 needed | I need manual for PHILIPS PM 2534 system multimeter. I want to comuniacete with it in LabVIEW, but I |
| No image on CRT monitor. LED does. Please advise... | Guys, I need your help :(
I have a Hitachi CM776ET CRT Display.
Since a week ago it started gi |
| 57 hitachi died after power surge - HELP, PLEASE!!!! | [size=18:e6949c0a51]Hi guys--hope you can help me out. The set i have is about 4 yrs old and is a 57 |
| thx for the info, I did some more research: the BU808DF seems to be a Line Output Transistor (LOPTR |
| CCFL (Cold Cathode Fluorescent Light) Inverter Repair. | Hello I am wondering if anyone can help me with this. My CCFL Inverter (12v, 2 output) recently over |
| I tried to post last night but it would not take it. this is what I wrote, I hope it explains:-
The |
| Testing the circuit is to be done with the power off!!
Do not apply power until you are sure you ha |
| Repair ASRock Z68 Extreme 4 MB | I've been using this MB for >2 years now, until yesterday it suddenly stop booting. It is in fact |
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| Tektronix DM5120 | please HELPME i need a manual (MAINTENANCE,SERVICE OR OPERATION) for programmable digital multimeter |
| stereo fuses | This does not mean you have a bigger problem.
The "F" stands for fast blow and the "T" for time-del |
| hello! Just wondering if this orange Triplett Model 60 Multimeter is still available for sale? |
| check out | if you have multimeter ...check out for all speaker outputs for signal (AC ~20V) |
| Re: panasonic tv - URGENT HELP PLEASE | [quote:35c3b5b82c="pun"]my panasonic tv ct-32sx12 won't turn on, it was working fine yesterday.....p |
| Try replacing C2455...it is off pin 3 of the flyback. The transistors that usually go bad are Q7460 |
| [quote:6b205a12c6="Anonymous"]Have you checked the horizontal output transistor for shorts?[/quote:6 |
| Hi,
It happens both when I am playing and even not when I am playing. It has worsened over time. |
| Thank you so much for the detailed answer.
I'll have a go at it over the weekend.
I might not ha |
| Horiz output | Ahh I get it now,
I would like to scope the base signal while lamp load is on and measure frequency |
| Multimeter needs be repaired | I own an US Craftsman Mod. 82139 Multimeter, I purchased it in Sears a few years ago. Lately, capaci |
| Convergence problem | I have a convergence problem before and I replaced both cirucit stk392-120. After I replaced I do no |
| an interesting discovery re: zener diodes in power supply | In the Troubleshooting section of the manual, shorted zener diodes across the driver transistors (in |