FSC B19-2 SERVICE MANUAL FSC MONITOR B19-2 HESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY.EVERY REASONABLE EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT GUARANTEE THE ACCURACY OFTHIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS RELIABILITY FOR CHANGES, ERRORS OR OMISSIONS.
FSC B19-2 Revision List Revision Date Change Description Feb-19-2005 Initial release Jun-06-2005 Replace Audio Board Add DVI function Jun-22-2005 Page 4 of 55...
FSC B19-2 2. LCD MONITOR DESCRIPTION The LCD MONITOR will contain a main board, a PWPC board, an audio board and a keypad board which house the flat panel control logic, brightness control logic and DDC. The power board will provide AC to DC Inverter voltage to drive the backlight and the main board chips each voltage.
FSC B19-2 3. OPERATING INSTRUCTIONS 3.1 GENERAL INSTRUCTIONS Press the power button to turn the monitor on or off. The other control buttons are located in the front of the monitor. By changing these settings, the picture can be adjusted to your personal preferences.
FSC B19-2 4. INPUT/OUTPUT SPECFICATION 4.1 INPUT SIGNAL CONNECTOR PIN NO. DESCRIPTION PIN NO. DESCRIPTION Red Video +5V input Green Video Logic Ground Blue Video Monitor Ground DDC-Serial Data N / C DDC-Return H-Sync. Red Ground V-Sync. Green Ground DDC-Serial Clock...
FSC B19-2 < 2.5mA for power from Wall-outlet No adverse effects (no loss of information or defect) with a maximum of 1 • Power line surge: half wave missing per second • Power factor correction: According to EN 61000-3-2 or power consumption is < 75W 4.4 PANEL SPECIFICATION...
FSC B19-2 5.2 SOFTWARE FLOW CHART Page 18 of 55...
Page 19
FSC B19-2 1). MCU initialize. 2). Is the eeprom blank? 3). Program the eeprom by default values. 4). Get the PWM value of brightness from eeprom. 5). Is the power key pressed? 6). Clear all global flags. 7). Are the AUTO and SELECT keys pressed? 8).
FSC B19-2 8.2 TROUBLE SHOOTING 8.2.1 MAIN BOARD No power No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100-240 is normal Reinsert or check the Adapter/Inverter section Measure U201 PIN2=1.8V U202 PIN2=3.3V...
Page 35
FSC B19-2 No picture (LED orange) No picture The button if under X601 oscillate Replace X601 control waveform is normal Check Correspondent Check reset circuit of component U601 is normal Measure U201 PIN2=1.8V U202 PIN2=3.3V Replace U601 X401 oscillate waveform is normal...
Page 36
FSC B19-2 White screen White screen Measure Q204 base X601 oscillate waveform is normal is high level? Replace X601 Check Q204,Q203 are Check reset circuit of broken or CN503 solder? U601 is normal Check Correspondent Check Correspondent component. component. Replace U601...
Page 37
FSC B19-2 8.2.2 Inverter Board No power No power Check AC line volt 110V or 220V Check AC line Check the voltage of C904(+) Check F901, BD901 Check start voltage for the pin3 of IC901 Check R906, R907, IC901 The auxiliary voltage (pin 7) is between 10V-16V jumping...
Page 38
FSC B19-2 No backlight Check C201 (+) =12V Check F201 Check D201/Q209/Q210 Check ON/OFF signal Check Interface board Check U201 pin9=12V voltage Change Q201 or Q202 Check the pin7/10 of U201 if have waveforms Short Q203/Q204 if the picture normal...
FSC B19-2 8.2.3 Key Pad Board OSD is unstable or not working Connect Key Pad Board Is Key Pad Board connecting normally? Replace Button Switch Is Button Switch normally? Is Key Pad Board Normally? Replace Key Pad Board Check Main Board...
B. MEM.CHANNEL 4 (6500 color): 6500 color temp. parameter is x = 315±15, y = 325 ±15. 3. into factory mode of B19-2 Press MENU button during 2 seconds along with press Power button will activate the factory mode, then MCU will do AUTO LEVEL automatically.
Page 55
FSC B19-2 33G4818 2 POWER LENS 33G4819BAS L KEY PAD 33G4821 EF L ROLLER COVER-B 34G1503ABT B FRONT BEZEL 34G1504ABT 2B REAR COVER 34G1505 BT B CHIN 34G1506 EF B COSMETIC REAR 34G1508 EF B STAND COVER(TOP) 34G1509 EF B...
Need help?
Do you have a question about the B19-2 and is the answer not in the manual?
Questions and answers