The Westronics SV100 Color Display is a paper‑less chart recorder featuring a full‑color touchscreen and Windows‑style menus for data logging and display configuration. Common failure modes include loss of visual output (blank or flickering screen), unresponsive touch input, power supply dropout, and internal memory corruption that can trigger error codes such as “0x01” or “0x02”. First‑check diagnostics should verify the 90–264 V AC input and ensure the unit’s DC regulator outputs correct voltage; visually inspect the main board for burnt or cracked components and test touch sensor continuity with a multimeter; finally, review any stored error logs via the on‑screen menu to identify specific fault codes.[oss-gpt-20b]