197.2. When Replacing the Main PCBAfter replacing the MAIN PCB, be sure to achieve adjustment.The adjustment instruction is available at “software download” on the “Support Information from NWBG/VDBG-PAVC” web-site in“TSN system”, together with Maintenance software.7.3. Service PositionThis Service Position is used for checking and replacing parts. Use the following Extension cables for servicing.Table S1 Extension Cable ListCAUTION-1. (When servicing POWER/TOP PCB)1. Be sure to discharge the capacitor on POWER/TOP PCB.Refer to “HOW TO DISCHARGE THE CAPACITOR ON POWER/TOP PCB”.The capacitor voltage is not lowered soon even if the AC Cord is unplugged or the battery is removed.2. Be careful of the high voltage circuit on POWER/TOP PCB.3. DO NOT allow other parts to touch the high voltage circuit on POWER/TOP PCB.No. Parts No. Connection Form1 VFK1950 FP6501 (SD/AFE) -CCD UNIT 33PIN 0.3 FFC2 VFK1575C5125 FP9001 (MAIN) - POWER/TOP FPC 51PIN 0.3 FFC3 VFK1974 FP9002 (MAIN) - LCD UNIT 4PIN 0.5 FFC4 RFKZ0378 FP9003 (MAIN) - LCD UNIT 19PIN 0.5 FFC5 VFK1951 FP9004 (MAIN) - BASE SU 39PIN 0.3 FFC6 RFKZ0379 PP6501 (SD/AFE) - PS9001 (MAIN) 40PIN B to B