Schematic Diagrams

Tuesday, December 8, 2015

Kenstar CTV – S2112C - Schematic - TDA12020H (One Chip Micom)

Used ICs: TDA12020H-(One Chip Micom) – 24C16 – TEA2025B – TDA7266 – STV9302 – TEA1520P

Circuit Diagram

RCA Valve Radio Circuit Diagram - 1960 model Transformer-less type

1960 Model Transformer-less [Barterer Type] Radio - RCA Victor - Schematic

Circuit Diagram

Monday, December 7, 2015

The Harman Kardon – PM640 – amplifier – Circuit Diagram

Hi-Current Capability Integrated Amplifier - Harman Kardon PM640 – Schematic

RMS Power Output > 35W

Power Supply > AC120V – 60Hz

Weight > 6.4kg

SCHEMATIC

PWB

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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.

INVERTER