Chapter 9 Pcb Diagram; Main Board - Samsung CL-21M21MQ Service Manual

9. PCB Diagram

9-1 Main Board

9-1-1 Assy Main Board
■ The Board that Controls Various Signals & Power for Product Operations
9-1-2 Names & Roles of Key Parts
* FP801S : A3 pin port connected to the Master Ass'y, which handles Master Power On/Off.
* CN601 : A4 pin port connected to the Speaker.
* CN902 : A4 pin port connected to the Control Ass'y, which delivers the necessary signal to KEY-IN1, KEY-IN2 Control.
* CN901 : A5 pin port connected to the Control Ass'y, which delivers the necessary signal to the remote control and the Led
control.
* CN602 : A5 pin port connected to AV Ass'y.
* CN701 : A8 pin port connected to the AV Ass'y, which receives AV2 external input.
* CN501 : A8 pin port connected to the CRT Ass'y which outputs the R/G/B signal to the CRT Ass'y for display. In addition, this
port outputs the necessary TILT, VM, and Power signals to the CRT Drive.
* CN502 : A7 pin port connected to the CRT Ass'y. Through this port, the power from the Deflection Block is supplied to drive the
CRT and AMP.
Samsung Electronics
PCB Diagram
CN601
9-1