Hi-Current
Capability Integrated Amplifier - Harman Kardon PM640 – Schematic
RMS Power Output > 35W
Power Supply > AC120V – 60Hz
Weight > 6.4kg
SCHEMATIC
PWB
CLICK ON THE PICTURES TO MAGNIFY
Monday, December 7, 2015
Sunday, December 6, 2015
LG FLATRON W2234S-SNI - W2234S-BNI - LCD MONITOR - SMPS and INVERTER SCHEMATIC
Power Supply Regulator and Back-light Inverter Circuit Diagram - LG Flatron W2234S-SNI - W2234S-BNI.Axx*QP Monitor
xx * means sales region and module
type
(AxxIQP: INL 5ms, AxxVQP: AUO 5ms)
SMPS SCHEMATIC
Power Part.
This part consists of the one 3.3V, and one 1.8V regulators to convert power which is provided 5V in Power board. 16V is provided for inverter, 16V is provided for LCD panel and 5V for micom. Also, 5V is converted 3.3V and 1.8V by regulator. Converted power is provided for IC in the main board. The inverter converts from DC16V to AC 700Vrms and operates back-light lamps of module.
This part consists of the one 3.3V, and one 1.8V regulators to convert power which is provided 5V in Power board. 16V is provided for inverter, 16V is provided for LCD panel and 5V for micom. Also, 5V is converted 3.3V and 1.8V by regulator. Converted power is provided for IC in the main board. The inverter converts from DC16V to AC 700Vrms and operates back-light lamps of module.
INVERTER
Saturday, December 5, 2015
TCL 21A71A – PAL-NTSC – CRT TV - Circuit Diagram and PWB
Schematic and Printed Circuit Board - TCL 21A71A-PAL/NTSC CRT TV
Used ICs: TDA7266 –
TMPA8873 – 24C08 – TDA4864AJ – MSP3425G – TEA1506P (SMPS Control)
Chassis 40-M123SP- MAK1X-M123SP
Chassis 40-M123SP- MAK1X-M123SP
CIRCUIT DIAGRAM
PWB
CLICK ON THE PICTURES TO ZOOM IN
Haier LE32C13200 Haier LE40C13800 - SMPS and Inverter Circuit Diagram
Power supply Regulator and Back-light Inverter Schematic - Haier LE40C13200 and Haier LE32C13200 - LED LCD TV
CLICK ON THE SCHEMATICS TO ZOOM IN
Wednesday, November 18, 2015
TOURCAB 715D AMP 700w Class D Amplifier and Pre-amplifier Circuit Diagram - WALDMAN MUSIC
Waldman Music - TOURCAB 715D Amplifier Schematic
CIRCUIT DIAGRAM [Click on the Diagrams to Magnify]
Monday, November 16, 2015
MEGMEET MLT666A and SEMA 04TA069C2 - LCD SMPS CIRCUIT DIAGRAM
MEGMEET MLT666A
SEMA04TA069C2
CLICK ON THE SCHEMATICS TO ZOOM IN
Sunday, November 15, 2015
HP L2035 TFT LCD MONITOR - POWER and INVERTER CIRCUIT DIAGRAM
SMPS and BACK-LIGHT INVERTER SCHEMATIC
Used ICs: OZ960G – FDS8958A – TEA1533AP-N1 – STU9NC80ZI-Switching FET
POWER - SMPS
BACK-LIGHT INVERTER
CLICK ON THE SCHEMATICS TO ZOOM IN
Wednesday, October 28, 2015
SYLVANIA C6615LE 15 inch COLOR LCD TELEVISION Circuit Diagram
C6615LE 15” COLOR LCD TELEVISION Circuit
Diagram. Sylvania and Funai
Fixed voltage (or Auto voltage selectable)
power supply circuit is used in this unit.
If Main Fuse (F601) is blown, check to see that all components in the
power supply circuit are not defective before you connect the AC plug to the AC
power supply. Otherwise it may cause
some components in the power supply circuit to fail.
The voltage for parts in hot circuit is
measured using hot GND as a common terminal.
BECAUSE A HOT CHASSIS GROUND IS PRESENT
IN THE POWER SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED. ALSO, IN ORDER TO HAVE THE ABILITY TO
INCREASE THE INPUT SLOWLY, WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT,
A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
SCHEMATIC DIAGRAM [Click on the Schematics to Magnify]
LCD UNIT
Main board [Contains back-light inverter and SMPS]
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