LG 29FX4BL BLE BKQ BKQ-TG CRT TV with PIP - Schematic diagram – STR-X6556 - SMPS Circuit diagram

LG 29FX4BL/BLE/BKQ - LG29FX4BL/BLE/BKQ-TG - 29 inch CRT TV circuit diagram Used ICs: 24C168-1PG – TDA6111Q – TDA7297 – TDA12XXXH – KTA4558 – STR-X6556 - TAFD-Z241P (TUNER) – BSC28-N2334-115V-FBT – EER4942 300UH-SMPS Transformer.

How to inspect condition of a transmission and reception in FM TRANSMISSION MODEL
- FM TRANSMITTER’s efficiency inspections is executed to a finished in a final inspection phase.
- FM TRANSMITTER is a function which receives voicesignal by an exclusive remote control and Earphone, transmits a FM through transmitter of inner part in MICOM BOARD to TV sound (MONITOR OUTPUT)
1) Execute in channel generating voice-signal
2) Select a transmitted frequency in MENU OSD.
MENU => SOUND => TRANSMITTER => frequency selection (87.7MHz)
3) A received frequency in an exclusive remote control or received FM Radio is tuned by 87.7MHz(107.7MHz) which is same as frequency in OSD.
4) Check out whether a signal generating to MAIN SPEAKER generates in earphone or receiver or not.
5) There is no alternation and setting of adjusted DATA in the process of inspecting FM TX.

Circuit diagram - [Schematic] full

SMPS [Split] - STR-X6556

Click on the schematics to zoom in