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Vcr repair I have an Lg brand vcr not sure of serial number.The ac line input is okay buy the dc is having problems.could it be tha regulators.

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If you have a voltmeter and some tech savvy, you could check the output voltages (voltages which run the VCR circuitry, motors, etc.). You should find a +5 volt, +12 to 14 volt, possibly a -35 volt (for the display if it has one). If these are missing, then the unit will be utterly dead. Check the fuse: If blown, check associated circuitry on the primary (line voltage) side. The fuse almost always poofs for a reason, and until the bad components are found, it will blow again, perhaps causing more component damage. The switching transistor may be shorted, plus nearby resistors/diodes/capacitors poofed/shorted/defective. In many VCRs I've worked on, a capacitor on the primary side will fail, and cause a dead condition, sometimes causing the noted transistor to short. A thorough check is highly suggested. It isn't fun to install new parts, only to have them poofed by a yet remaining problem somewhere. Common failures on the secondary side (where the voltages noted above are rectified, filtered), are the electrolytic capacitors. Common values here are 1000MFD/16 volt, 1500MFD/10Volt, 2200MFD/10volt or close. Many of the older VCRs pre-90's developed this problem.

Posted on Sep 19, 2007

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Please leave rating if it helps.

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