Wednesday, 10 July 2019

Sony COMPACT DISC DECK RECEIVER - SONY HCD-GTR33 - GTR55 - GTR77 – Test mode - panel test procedure – cold reset – Factory preset – power amplifier schematic diagram

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SONY HCD-GTR33 - GTR55 - GTR77: TEST MODE PANEL TEST MODE This mode is used to check the fluorescent indicator tube, LEDs, keys, [MAST...
Saturday, 22 June 2019

HP Split 13 x2 – Disassembling procedure – How to remove the batteries – How to remove the base cover – How to replace the RTC battery – How to update the BIOS

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HP Split 13 x2 disassembling procedure  How to remove Base enclosure Before disassembling the keyboard dock, follow these steps: 1. ...
Wednesday, 19 June 2019

How to replace and reset lamp – BenQ MX613ST, BenQW1080, BenQW1070 projectors

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BenQ MX613ST Replacing the lamp • To reduce the risk of electrical shock, always turn the projector off and disconnect the power cord...
Tuesday, 18 June 2019

JBL BASS 550 powered sub woofer test procedure

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Equipment needed: The “Source” AM/FM turner/CD player with remote control, Function/signal generator/sweep generator.   Multimeter. C...

INFINITY RS-12 SUBWOOFER troubleshooting – Fuse blown – relay not closing

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INFINITY RS-12 Troubleshooting; For all problems (except blowing fuses) After amplifier removal from cabinet, pull back plastic cover t...
Monday, 17 June 2019

High voltage generator circuit electronic project

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ELECTRONIC PROJECT  This high voltage generator was designed with the aim of testing the electrical breakdown protection used on the ra...
Friday, 14 June 2019

Color television receiver Samsung CL15K5MNFX/XAP – Schematic, Service mode adjustments

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K15D Chassis, CL15K5MNFX/XAP Model – How to enter the factory mode, adjustments, Schematic Factory Mode 1. Do not attempt these adjust...