Transistor QF601 for Mainboard CB53 Main: L1800 1390 1430 Epson Printers - Fix No Power
20 coupons
Troubleshoot the "No Power" Issue in CB53 Mainboard Printers, such as L1800, 1390. This issue may not stem solely from the power supply. A potential cause could be a damaged mainboard. Begin by examining the four transistors on the power bridge (with silver head sink). If these four transistors appear functional, focus
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