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Power supply fault [d212 short] - Sony DVP-NS51P DVD Player

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Sounds like a bridge rectifier diode has shorted replace the bridge or make your own use 4 1000 piv diodes. can be purchased at radio shack. be sure to connect the diodes annode to cathode when making the bridge. also when a component shorts it generally opens the next component in youre case i would definatley check the filter caps.sometimes if overloaded they will actually be swelled otherwise you will have to take them out of the circuit and read them with a cap checker on a quality multimeter. if bad be sure to mind polarity when replacing! electrolytic caps have a positive and neg. leg the board will be marked

Posted on May 29, 2011


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My tv wont turn on

power supply or horizontal section fault. in power supply rectifier may be short circuited or S.T.R may burn horizontal transistor may be internally short circuited or E.H.T transformer may be open

Nov 05, 2012 | Televison & Video


Ducati Fault Codes

Engine Fault Codes - Ducati 749/999

To see the fault codes, with the ignition off hold both dash buttons down and turn ignition on.

1.1 TPS Disconnected

1.2 TPS short circuit to earth

2.1 Pressure Sensor short circuit to power supply

2.2 Pressure Sensor shorted to earth

3.1 Water Temp Sensor shorted to power supply

3.2 Water Temp Sensor shorted to earth

4.1 Air Temp Sensor shorted to power supply

4.2 Air Temp Sensor Shorted to earth

5.1 Battery Hi

5.2 Battery Low

10.1 Hor. Coil shorted to power supply

10.2 Hor. Coil shorted to earth

11.1 Ver. Coil shorted to power supply

11.2 Ver. Coil shorted to earth

12.1 Inj1 shorted to power supply

12.2 Inj1 shorted to earth

13.1 Inj2 shorted to power supply

13.2 Inj2 shorted to earth

14.1 Inj3 shorted to power supply

14.2 Inj3 shorted to earth

15.1 Inj4 shorted to power supply

15.2 Inj4 shorted to earth

16.0 Pump Relay

17.1 LH Fan shorted to power supply

17.2 LH Fan shorted to earth

18.1 RH Fan shorted to power supply

18.2 RH Fan shorted to earth

19.1 Starter Solenoid shorted to power supply

19.2 Starter Solenoid shorted to earth

30.0 ROM/Eprom error

34.0 Signal Panel Sensor

36.0 Speed sensor

37.0 Immobiliser (transponder)

37.1 Immobiliser (antenna)

37.2 Immobiliser (instrument panel serial driver)

37.3 Immobiliser (serial cable disconnected)

37.4 Immobiliser (ccm serial drive)

37.5 Immobiliser (key not recognised)

37.6 Immobiliser (ccm program)

38.0 Can Line error


on Dec 20, 2016 | Motorcycles

2 Answers


Any bulged capacitors? If so- they caused the fuse to blow. If nothing is obviously showing fault, check the capacitors in the main portion of the power supply for shorted condition. Also look for failed resistors, and shorted TVS

Dec 20, 2011 | Televison & Video

1 Answer

Tv in standby mode blinks 2 times then pauses and blinks again

Check your TVs power supply regulator section for any loose sodering points in it. The regulated voltage comes from it is more thatn normal. Check out all the soldering terminals. It is best to resolder all the suspected solder terminals by applying a little more solder, without making any solder bridge short in between adjecent solder points. The fault symptom as reported by sony is:-Two blinks - B+ over current protection (OCP), unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.
Check for any short circuit in the secondary section of the SMPS power supply section. Check the horizontal output transistor for collector to emitter short.

Aug 07, 2011 | Sony FD Trinitron WEGA KV-32FS120 32" TV

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It will not turn on! it turns on an turns right back off?

It is typical fault for most of the sony colour telivisions. Most common fault seen till now is shorted LOT. If LOT is short, normally horizontal output transistor may also short. There is a short circuit protection circuit in the power supply section of most of the sony telivisions, which will detect the short in the circuit , and will turn off automatically as you described. The process will repeat as you seeing now. Each time the power supply will turn on, it will detect the short and turn off. This process will repeat till you switch off the set. At first remove the horzontal output transistor and switch on the set and look for a constant LED lighting. If the LED lichts constantly, surely horizontl output section has a fault, a short. Detect the reason and rectify it.

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1 Answer

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1 Answer

Kenwood VR-5090

Probably an issue with the switching power supply or possibly a shorted output. There are various protection circuits that will cause that. Most suspect is the SMPS (switch mode power supply) fault detection. (Check your output for a short though, i.e.shorted speaker wires)

Nov 10, 2007 | Kenwood VR-5900 Receiver

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