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19" Auto scan Colour Monitor
109B2 GSIII CM25
Service
Service
Service
DDC/Power saving /TCO 109B20/00 (PHILIPS)
Table of Contents Horizontal frequencies
30 - 97kHz
Description Page Description Page
Important Safety Notice . . . . . . . . . . . . . . . . . . . 2 Video Panel (A) C.B.A. . . . . . . . . . . . . . . . . . . . . 24
Technical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Main Panel (B1, B2, C) C.B.A. . . . . . . . . . . . . . . 25
Front View & Back View . . . . . . . . . . . . . . . . . . . 4 Deflection (B1) Schematic Diagram
OSD Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . 5 & Waveforms for Diagram (B1). . . . . . . . . . . 26
OSD Lock Function & Service Mode . . . . . . . . . 6 CPU (B2) Schematic Diagram
Warning and Notes . . . . . . . . . . . . . . . . . . . . . . . 7 & Waveforms for Diagram (B2). . . . . . . . . . . 27
Mechanical Instructions . . . . . . . . . . . . . . . . . . . 8 Power Supply (C) Schematic Diagram
Safety Test Requirements . . . . . . . . . . . . . . . . . 9 & Waveforms for Diagrams (B1) & (C) . . . . . 28
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Repair Tips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
DDC Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Exploded View... . . . . . . . . . . . . . . . . . . . . . . . . . 30
DDC Instructions. . . . . . . . . . . . . . . . . . . . . . . . . 12~15 Recommended Parts List . . . . . . . . . . . . . . . . . . 31
Electrical Instructions . . . . . . . . . . . . . . . . . . . . . 16~20 Spare Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . 32~37
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Repair Flow Chart . . . . . . . . . . . . . . . . . . . . . . . 38~45
Control Panel Schematic Diagram & C.B.A. . . 22 General Specifications . . . . . . . . . . . . . . . . . . . . 46~70
Video Panel (A) Schematic Diagram LightFrame for Windows . . . . . . . . . . . . . . . . . . 71~72
& Waveforms for Diagram (A). . . . . . . . . . . . 23
SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC
EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING.
REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINES