Question about Pioneer SD-P62A5-K TV

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2.5 amp fuse blows

Fuse blows. replaced. worked for 4 mos. blows again. replace. worked for 2 mns. blows again. replace and worked for 2 wks. then shadowing on imagages. what do you think is wrong. It is 10 yrs old.

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Hi there!
The set is rather old. I would suggest checking the PTC. Located close to the mains on/off switch.(cream in colour) This will fail with age. Also change suspicious looking caps. As for the shadowing, I am not sure what it looks like, but it may be related to the same problem. Good Luck, Regards, JUS004

Posted on Mar 25, 2008

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Posted on Jan 02, 2017

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Amp keeps blowing fuses


Blowing fuses, was caused by many thing.
Short of rectifier,resistor,elco,tube heater,tube pin, and also trafo itself (primary or secondary winding). It must check step by step.
CAUTION :
THIS IS HIGH VOLTAGE AREA.
RISK OF ELECTRIC SHOCK THAT CAN KILL.
DON'T DO THIS IF YOU ARE NOT TECHNICIAN OR NOT FAMILIAR WITH VACUM TUBE CIRCUIT. THE CIRCUIT MAY STILL CONTAINS ELECTRIC SHOCK EVEN IF IF THE AMP IS NOT POWER PLUGGED.


The simple steps (see picture) are:
  1. Disconnect all connection from secondary of power trafo (PLV,PDCH,PACH and PHV).
    Power ON the amp. If fuse is not blowing,trafo is good.
  2. Power OFF the amp. Unplug the cord.
    Connect PLV1-PLV2-PLV3 (this are Bias voltage,+/-15VDC and Backlight PCB voltage) to power trafo.Power ON the amp. If fuse is not blowing,PLV circuit is good.If fuse blowing,there are parts is damage (dioda,elco,7815/7915,resistor) in this PLV circuit.
  3. If step 2 is good,go to next step.
    Power OFF the amp. Unplug the cord.
    With PLV circuit stay connected,connect PDCH 1-2 and PACH 1-2 to power trafo. Power ON the amp.
    If fuse is not blowing,PDCH and PACH circuit is good and all tubes heater/filaments are lights after a few seconds.
    If fuse blowing,there are parts is damage (dioda,elco,tube heater pins) in this PDCH/PACH circuit.
  4. If step 3 is good,go to next step.
    Power OFF the amp. Unplug the cord.
    With PLV,PDCH,PACH circuit stay connected,connect PHV 1-2 to power trafo.
    Power ON the amp. CAUTION: HIGH VOLTAGE AREA is ON.
    If fuse is not blowing,PHV circuit is good.
    If fuse blowing,there are parts is damage (dioda,elco,tube pins) in this PHV circuit.
.amp-keeps-blowing-fuses-01sk4vtrndbaaguwe2brflsj-5-0.jpg
Notes:
  • Steps had to be done sequentially from 1 to 4, not upside down.
  • If tube/heater pin is short,it can't be repair. The tube must be replacing.
  • PDCH circuit is voltage for V1-2-3-4 heater/filaments.
  • PACH circuit is voltage for V5-6-7 heater/filaments.
  • Always replace fuse with same type.

amp-keeps-blowing-fuses-01sk4vtrndbaaguwe2brflsj-5-1.jpg

Oct 02, 2015 | Peavey 6505 Plus 120W Guitar Amp Head

1 Answer

I have a 1994 Ford Thunderbird LX V8. A few months ago when I put the car in park, the air conditioner and the battery amp guage quit working. I found a fuse that was bad and I replaced it and then the...


I'm betting it has something to do with the shift lock actuator or the harness to the actuator. I'm pretty sure it is located on the top of the steering column on your vehicle. The lower part of the dash will need to be removed and then the steering column lowered in order to gain access to it.

This vehicle does have an airbag and unless you experience with airbag systems I would not recommend tackling this yourself.

unplug the interlock. Replace the fuse. Start the vehicle. with your foot on the brake manually release the interlock with you hand and shift through the gears. If the fuse does not blow your on the right track. If the fuse does blow let me know and I'll get you some more info.

Let me know if you have any questions and thank you for using Fixya.com

Oct 25, 2011 | 1994 Ford Thunderbird

1 Answer

2001 explorer SportTrac blower only works on high


you need to replace the blower motor resister in the heater plenum case, 2 srews, 4 or 5 wire connector. If it blows again, you will have to replace blower motor as it is drawing too much current & failing the thermal fuse in the resistor pack.

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Aug 15, 2011 | Ford Explorer Sport Trac Cars & Trucks

1 Answer

I installed a planet audio TW402 amp in my car. i put this amp last summer. when i first put it in my car with an sony xplod sub. i had a very small 12 gauge power wire and ground wire. but still it worked...


It could have to do with how your speakers are wired. If you have 2- 4 ohm speakers and they
are both wired to one terminal (RIGHT OR LEFT) on the amp, you have a 2 ohm load and most amps are rated at 4 ohms.
Go to this site and use #58 on the right sidebar to see if you are wired correctly.
http://www.bcae1.com/

Mar 14, 2011 | Planet Audio TQ402 Car Amp

2 Answers

Lights arent going on,boyfriend changed fuse yesterday and it worked. Gotta do it again to be able to drive to shop. Need fuse layout for headlights


It's not a fuse problem....
The car has at least 4 fuses for headlights. one for each Dip left + right hand side (10A mp approx) and 2 more Main left + right. Your front fog and sidelights are also seperate fuses. A doggy connection or relay is a high suspect instead.

Mar 18, 2010 | 1995 Chevrolet G20

1 Answer

Viking Microwave Model VMOC205SS little over 4


9 amps is approx. correct. Does magnatron make an odd sound when running? If not, you will need to discharge cap then clean terminals with alcahol. Replace diode as well. Should run correctly.If blows again, replace magnatron. Suggest you put a 12 amp fast blow fuse in circuit and nor a 20 fuse.If you dont have a grill or an oven, use a 10 amp fuse.

Sep 17, 2009 | Viking VMOC205SS Microwave Oven

1 Answer

I just purchased and had installed an alpine pdx-1.1000 amp. powering 2 12" jbl's. while the owner was demonstrating this to me, we had it going loud, and it blew its 4 fuses. once he replaced the fuses,...


Technically, the manual says the amp should have 20A fuses, so by putting 25A fuses in, you've allowed more current to get to the amp before the fuses blow than recommended. I'd be more concerned about why the amp is blowing fuses.

If the subs are single 4 ohm voice coils and wired in parallel, you're fine. If they're dual 4 ohm voice coils, and everything (subs and voice coils) are in parallel, you're putting a 1 ohm load on the amp, which it's not rated for.

Mar 17, 2008 | Alpine PDX-1.1000 1000W x 1 Car Amplifier...

1 Answer

Blown 4 amp fuse twice


ok appaloosa! is the fuse blowned again? if blow you have fault unregulated power section, you have defective parts like.. leak degausing or defective diodes or capacitor and or regulator IC. 2nd. defective horizontal output. if not blow the fuse u have fault oscillation!

Sep 14, 2007 | Pioneer SD-P55A3-K 55" Rear Projection...

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