Schematic Diagrams

Sunday, April 3, 2016

MP123T-CH SMPS Schematics – SMPS schematic – Philco 32 inch LED LCD TV

Power Supply Circuit Diagram - Philco 32" LED LCD TV

Friday, March 25, 2016

Horizont 27LCD825 – Horizont 32LCD825 – LCD TV – Circuit diagram (Schematic)

SMPS

MAIN BOARD

Click on the schematics to zoom in

Tuesday, March 22, 2016

Philips MCM726 MP3 Micro Hi-Fi System - Circuit Diagram - Complete

CIRCUIT DIAGRAM - RECTIFIER BOARD

TUNER BOARD ECO6

CASSETTE BOARD

VFD BOARD

C MUSIC BOARD

MAIN BOARD

Click on the schematics to magnify

Monday, March 14, 2016

AOC LCD MONITOR - AOC 919V - AOC A240WD - SMPS Circuit Diagram

AOC 19 inch and 24 inch LCD Monitors - Power Supply and LVDS Circuit Diagram

19" TV SMPS - 715G2824-2-2

AOC 919V - Power Supply [SMPS] Circuit diagram (715G2824-2-2)

Scaler

AOC A240WD - SMPS [power supply] Circuit diagram

Click on the schematics to zoom in

Saturday, March 12, 2016

Harman/kardon DVD 50 – Circuit Diagram – Disassembly - 5 Disc DVD Changer

Applicable Discs: 5-inch (12cm) or 3-inch (8cm) DVD-Movie, CD, Video CD, MP3-CD, HDCD, CD-R or CD-RW discs.

Region 1 DVD-Movie discs
DVD: Single/Single Layer, Single Side/Dual Layer, Dual Side/Dual Layer
Linear PCM, Dolby Digital or DTS Audio
Video Signal System: NTSC
Composite Video Output: 1Vp-p/75 Ohms, sync, negative polarity
S-Video: Y/Liminace: 1Vp-p/75 Ohms, sync, negative polarity
C/Chrominance: 0.286Vp-p
Component Video Output: Y: 1Vp-p/75 Ohms, sync, negative polarity
Pr: 0.7Vp-p/75 Ohms
Pb: 0.7Vp-p/75 Ohms
Progressive Scan Output: Y: 1Vp-p/75 Ohms, sync, negative polarity
Pr: 0.7Vp-p/75 Ohms
Pb: 0.7Vp-p/75 Ohms
Analog Audio Output: HDCD: 2.0V RMS +/– 0.2V
Others: 1.0Vp-p RMS +/– 0.2V
Coaxial Digital Audio Output: 0.5Vp-p/75 Ohms
Frequency Response: 4Hz – 22kHz +/– 0.5dB (48kHz sampling)

AC Power: 100 – 240VAC 50/60Hz (Refer to back of the set.)
Power Consumption: 18 Watts

DISASSEMBLY

Tray Door
1.Eject the disc tray.
2.Lift up the tray door in the direction of the arrow.

Front Panel
1. Eject the disc tray. (See Fig. 2-2)
2. Remove the tray door. (See Fig. 2-2)
3. Pull the front panel toward you while pressing
5 stoppers to disengage, and remove the front panel.

CIRCUIT BOARD DISASSEMBLY

[Before removing the main circuit board, be sure to shortcircuit the laserdiode output land. After replacing the main circuit board, open the land after inserting the flexible connector.]

Disassemble Main circuit board, Jack circuit board, Power circuit board and MD Ass'y DPM1.

1. Remove the top case.

2. Remove 10 screws (B).

3. Disassemble Main circuit board and Jack circuit board from Bracket Main.

4. Unscrew 3 screws(C) at Bracket Main.

5. Disassemble Bracket Main from Main chassis.

6. Unscrew 4 screws(D) at MD Ass'y DPM1.

7. Turn the portion the direction of arrow to move the Base Assembly Tray in front of you.

8. Release the other 3 screws(E).

9. Disassemble MD Ass'y DPM1 from Main chassis.

10. Unscrew 4 screws(F) at Power circuit.

11. Disassemble power circuit board from Main chassis.