Jandy 6474-G Circuit Board

Jandy 6474‑G is a Power Center controller PCB used in Aqualink RS6 pool and spa automation systems; it houses the ALRS8 P&S microcontroller and drives relay outputs for pumps, heaters, and lighting. Common failure points on this board include power‑supply decoupling caps, the central CPU chip, and solder joints to the 44‑pin connector that can crack under vibration or thermal cycling. First‑check diagnostics: verify 12 V DC input voltage and regulator output rails; inspect the ALRS8 package for burn marks or cracked pads; and perform a continuity test on all relay driver traces and I/O pins before proceeding with component replacement.[oss-gpt-20b]

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