Service bulletin CNZ202200302  PCB burnt for LRSOS2706D, LRSOS2706S, LRSDS2706D, LRSDS2706S, LRSES2806S, GR-QPLC82BS, LS77SXTC, LS77SXSC, LRSVS2706S, VS27XCS, VS27BIP, VS27GNIP, VS27JP, VS27JT, LS77SDS, VS27JS, GS77SPP, GS75SPP, LRSXS2706V, VS27LIP, VS27LNIP, LRSXS2706W, LRSXS2706B, LRSXS2706S, LHSXS2706S, VS27BXQP, LRSOC2306D, LRSOC2306S, GR-QL62MB, GR-QL62ST, LS66SXTC, VS22XCT, LS66SXSC, LS66SGP, VS22JDP, VS22JNT, LS66SDS, VS22JS, GS66SPP, LRSXC2306V, VS22LNIP, GS66SPV, LRSXC2306S, GR-DL62SV