How to make Self-Test and repair on F7SN, F7SG, F7SW, or F6+

Open circuit test (VCI box+ main cable + self-test adaptor + AC adaptor)

–Test VCI box and main cable

How-to-make-Self-Test-and-repair-on-F7SN-F7SG-F7SW-or-F6+-1a

Short circuit test (VCI box+ main cable + self-test adaptor + AC adaptor)

–Test VCI box and main cable

Self-test (VCI box+ main cable + self-test adaptor + AC adaptor)

–Test VCI Box

Repair VCI Box