Wednesday, December 30, 2015

Wednesday, December 16, 2015

Grundig Eleganz 2300SE - Black and White TV - of 1962 - Hybrid Type

Valve and Transistor - Grundig Black and White TV - 1962 model - Grundic Eleganz 2300SE
CIRCUIT DIAGRAM
  I know; nobody will have this model set (working) now.  Yet, publish this post to compare its assembly and schematic with modern Televisions.  Even though it is B/W TV, weigh about 45 kilograms.

Thursday, December 10, 2015

LG RE28FZ10 – RE32FZ10 – 100Hz CRT TV – Circuit Diagram

Used ICs: CXA2040AQ – SDA9489X – DDP3310B – TDA6111Q – TDA7297 – TDA2822- SDA5555 / SDA5521 – MSP3411 – LA7845 – (6174V-6003E Line Output Transformer)
Schematic [Click on the Schematics to Magnify]

Vestel 11AK36 - Circuit Diagram

Schematic - Vestel 11AK36

SMPS
Horizontal & Vertical Scan Output
CRT Card
System Control
Chroma
CLICK ON THE SCHEMATICS TO ZOOM IN

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
CLICK ON THE PICTURES TO MAGNIFY

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

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
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