Schematic Diagrams

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

How to Upgrade Firmware - EDID data =>

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]

SYLVANIA - FUNAI - LC195SL9 B - 19 inch LCD TV - Main board Circuit Diagram

MAIN DIGITAL BOARD SCHEMATIC

Service Mode - SMPS circuit diagram - and more =>

Saturday, October 24, 2015

ELECTROLUX EVM1000 FRONT LOADING WASHING MACHINE – Connectors and details - Circuit Diagram

Burning on the circuit board EWM1000
In case of burning on the main circuit board, check that the problem is not caused by another electrical component (short-circuits, poor insulation, water leakage).
Refer to the figures below in order to identify the component that might have caused the burning according to the position of the burned area.
The circuit board shown below is the version with the greatest number of components: other boards may not feature all these components (relay K4 and buzzer).

1. NTC washing temperature sensor
2. Drain pump
3. Power supply
4. Motor

5. Heating element
6. Door safety interlock
7. Water fill solenoids
8. Tachymetric generator (motor)
9. Drum positioning system (top-loaders)

Pushbutton – led side (horizontal buttons) & Pushbutton – led side (vertical buttons)

Connectors on circuit board EWM1000

1. ---
2. Drain pump
3. Power supply
4. Motor

5. Heating element
6. Door safety interlock
7. Water fill solenoids
8. Tachymetric generator (motor)
9. Drum positioning system (top-loaders)

Elementary diagram

With instantaneous door locking device and With PTC door locking device & With PTC door locking device

KEY TO CIRCUIT DIAGRAM

1. Circuit board
2. Suppressor
3. Main switch (on programme selector)
4. Door safety interlock
5. 1st level pressure switch
6. Anti-boiling pressure switch
7. Anti-overflow pressure switch (certain models only)
8. Heating element
9. Stator (motor)
10. Overload circuit-breaker (motor)
11. Tachymetric generator (motor)
12. Rotor (motor)
13. Drain pump
14. Pre-wash solenoid valve
15. Washing solenoid valve
16. “Door closed” lamp (certain models only)
17. Drum positioning system (DSP) (top-loaders – certain models only)

DOOR_TY Triac for door safety interlock
DRAIN_TY Triac for drain pump
K1 Heating element relay
K2 Motor relay: clockwise rotation
K3 Motor relay: anti-clockwise rotation
K4 Motor relay: half-range power (certain models only)
MOTOR_TY Motor triac
ON/OFF Main switch (programme selector)
PWELW_TY Triac for pre-wash solenoid valve
Serial interface Asynchronous serial interface
WELV_TY Triac for washing solenoid valve