Friday, November 19, 2021

Akai 21CT32 colour TV -How to enter the service mode, full circuit diagram - TDA9381, KA5Q1265, or 5Q0765RT STR, 2SD1866 Horizontal Output Transistor.

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  Signal process The main chip is N301 TDA93X1 AV control switch HEF4052, sound driver is N101 N17821A The TV signal inputs into the tune...
Thursday, November 11, 2021

LG LH-T7652SB, LHS-76SBC, LHS-76SBS, LHS-76SBW DVD-CD RECEIVER How to enter the service mode, Schematic diagram, Exploded view

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  Stereo mode 100W + 100W (Rated Output Power 100W, 4Ω at 1 kHz, THD 10 %) Surround mode Front: 100W + 100W (Rated Output Power 100W, THD 1...
Sunday, October 31, 2021

Samsung HT-F4500 5.1CH Blu-ray Home Entertainment System- amplifier and SMPS schematic, How to insert the region code

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  How to check the firmware version, How to update the firmware, How to initialize the set, Disassemble procedure,  amplifier and SMPS schem...
Friday, October 29, 2021

SONY KD-65AG9, KD-77AG9 Chassis GN5UR-SP-Self diagnostic, LED blinking codes and troubleshooting - Sony models KD77AG9, XBR77AG9, KJ55A9, KD55A9G OLED TVs

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  Sony GN5UR CHASSIS - KD-77AG9, KJ-77A9G, KD-77A9G, XBR-77AG9, XBR-55AG9, KD-55AG9, KJ-55A9G, KJ-55A9, KJ-65A9, KD-65A9, XBR-65A9G, KD-65A9...
Wednesday, October 06, 2021

Panasonic SA-AKX74LM CD stereo system - How to enter the service mode, self diagnostic, Demonstration lock, D-amp and SMPS schematic, Power board error codes

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  Always respect voltages. It makes sense to avoid exposure to electrical shock.   While some sources are expected to have a possible danger...