| Subject | Text |
| an interesting discovery re: zener diodes in power supply | In the Troubleshooting section of the manual, shorted zener diodes across the driver transistors (in |
| Mastech ms8201h | Does anyone have available the service manual for the Mastech ms8201h multimeter?
Thanks |
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| Jackson Power Supply #607...No Low Voltages.??? | I just got a Jackson Model 607 Power Supply that my Father had in storage.
I plugged it in and foun |
| ok... thanks for all your help! much appreciated..
this amp is part of a separates system - but i |
| Re: Same TV, Same Problem.... | Hi..just to shere my knowledge..i from malaysia but i think the basic still same..i have lot experie |
| the psu needs to be tested while connected to the vcr as the supply rails will often only be low whi |
| [quote:6b205a12c6="Anonymous"]Have you checked the horizontal output transistor for shorts?[/quote:6 |
| 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 |
| Horiz output | Ahh I get it now,
I would like to scope the base signal while lamp load is on and measure frequency |
| Tektronix TM 515 w/ PS 501-2, SC 501, FG 501, DM 501, DC 504 | I have a Tektronix TM 515 mainframe with the following plug-ins. Due to its portability this unit i |
| 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. |
| Re: Tektronix 422 | [quote:da0218760b="ninelives"]I have a Tektronix TM 515 mainframe with the following plug-ins. Due |
| 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 |
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| 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 |
| Re: samsung home cinema | [quote:cf55dd0e0d="dolhoemti"]Good morning guys.
I have one dvd player samsung model ht120 wich is |
| 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 |
| 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 |
| Re: Sony KV35v36 Picture Out Audio On | [quote:e771e5df4f="Vortex"]Hello, my Sony picture goes out every 15 to 30 minutes, but the sound sta |
| IBM G40 Monitor - Not working, - SERVICE MANUAL | [EMAIL me also at: [email protected] , I MAY not visit here again ;-< ]
My IBM G40 15 |
| 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? |
| the only advice i can give is to check that all the connectors are firmly pushed in check the fuses |
| 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 |