Telefunken Boombox Stereo Radio Recorder – RC760-PCR22 – circuit diagram

Used ICs: TA7358P – TA7343AP – TA7640AP – TA7648BP – TA7769P

 

Circuit diagram and PWB [Click on the pictures to magnify]

DPS200 Desktop computer ATX power supply schematic

Desktop computer power supply - ATX type Delta

Circuit diagram

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Emachine E19T6W LCD color monitor SMPS circuit diagram 715G1695 1GW

Used ICs: LD7552BS – AM9945N-T1-PF – OZ9938GN - STP9NK65ZFP[FET]

The LCD monitor will contain a main board, a power board and two key boards which house the flat panel control logic, brightness control logic and DDC.

The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage.

SMPS and Back-light section circuit diagram [Click on the circuit diagrams to magnify]

BN44 00195 SMPS circuit diagram – For Samsung Syncmaster monitors - 245B – 245B2 – 245BW

Power board schematic - Samsung Syncmaster monitor - 245B

Schematic

Altec Lansing 353A – power amplifier – vacuum tube type – Circuit diagram - 6L6 - 12AX7

Used tubes – 12AX7 [pre-amplifier, tone control and audio pre-amplifier] – 6L6GC [audio output]

Circuit diagram

Tube pin-out -6L6

Tube pin-out 12AX7

LG 26H1DC1 – LCD TV – SMPS circuit diagram

26 inch LG LCD TV - LG26H1DC1 - power board circuit diagram

 SMPS Schematic LG 26H1DC1 – LCD TV

Click on the schematic to magnify

EXA37617801 SMPS– Used with LG42LC7R LCD TV - Schematic

Circuit diagram

Click on the schematic to zoom in

LG Mini Hi-Fi system – CM9740 – NS9740 – SMPS and Power Amplifier schematic

LG 2900W Combo Hi-Fi system CM9740 – Power and Amp: circuit diagram

SMPS schematic

Power amplifier schematic