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Gopakumar Gopalan
749 followers -
I'm now 67 years old. A professional service technician to all kinds of electronic entertainment systems, since 1974.
I'm now 67 years old. A professional service technician to all kinds of electronic entertainment systems, since 1974.

749 followers
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Attack MK4800 - Hi-power professional amplifier circuit diagram
Used power output transistor pair - 2SC5198, 2SA1941 Power supply schematic and PWB LED VU drive schematic Power amplifier circuit and PWB Click on the pictures to magnify

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Haier 48DR3505 LCD TV – how to enter service mode, adjustments, panel faults - Software update - MSD3393LU Chassis
How to enter into Service Mode The way to the factory mode menu: 1: Press Menu 2: Input “ 8893 ” System will be into the factory mode menu when 2 steps above are done. At the end of the main factory menu, you can see the edition of the software like this " ...

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DPS 186CP-1 Universal LCD TV Power board Circuit diagram circuit description and troubleshooting
Used with - Haier P32R1, Haier L32F1, Haier LK32K1, Haier L32R3and  Vizio VOJ320F1A Haier L32Fl LCD TV power supply voltage is + 5V, +12 V and +24 V three groups, of which 5V for the standby power, to the motherboard standby circuit power supply, 12V to the...

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