PHILIPS AZ3830/55 MP3 CD Soundmachine – Circuit Diagram

TDA8944J – PT2314  

Power amplifier schematic and PWB

Keyboard

LCD board

WMA & Memory

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Onkyo CD RECEIVER CR-315 - CR-315DAB - Schematic

Onkyo CR-315 - CS-315DAB Black and Silver – Power amplifier and FL Display – System control – Circuit Diagram

Initialize the unit
(1) Press and the hold down the STOP button, then press the STANDBY/ON button at power on state.
Preset memory and each mode stored in the memory, are initialized and will return to the factory settings.

FL Display:  Shows “clear” and goes to Standby

(2) Disconnect the AC power cord from a wall outlet.

Check version of microprocessor.
Main microprocessor (Q709), Servo microprocessor (Q101), Sub microprocessor (Q801).
(1) Press and the hold down the DISPLAY button, then press the STANDBY/ON button at power on state.

Amplifier and FL display circuit diagram

CD mechanism and CD loader - Exploded view

Exploded view

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Colour TV kit Circuit Diagram – TMPA8829 syscon chroma jungle IC

Used ICs: 24C08 – TMPA8829 – 4052 – MSP34X5G – TDA8944 – TDA8945 – TC90A49P – TDA8177 – TDA16846 – BCK4901-XX(LOT) CTV CIRCUIT

Britania Home Theater Britain FAME 240 USB - Schematic

Britania Fame 240USB - Home Theater – SV VCD THEATER FAMA 240 - SMPS and AMP Circuit Diagram

Used semiconductors: MP7742-2X15W – SHT600A – FSDM0565

SUBWOOFER - CENTER - SURROUND - FRONT LEFT and RIGHT Amplifier - schematic

PRE-AMP

SMPS (Power)

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H-buster HBD 7300MB - Car Stereo - Circuit Diagram

Schematic- Click on the schematics to zoom in

Metrawatt Unigor 4S Analog Multimeter and Cast Elenco M1250K Analog Multimeter – Schematic

M1250K Elenco Analogue Multimeter

Cast M1250K Analog Multimeter circuit diagram

Metrawatt Unigor 4S Analog Multimeter circuit diagram

Sub Woofer circuit diagram - 35 Watts - TDA 7265

35Watts sub-woofer schematic using IC TDA7265

Sanyo J2503 Stereo Amplifier (Europe) - Circuit Diagram

D613E – B633E => Output Pair

25 watts x 2

AC220V, 50Hz.

Power consumption: 120W

Schematic