Power supply schematic for the Sony KDL-40U2000 LCD television, a 2.1 MB PDF. The name refers only to the power section, so expect drawings of the mains input, PFC, standby and main converter stages rather than the signal or main board. It helps with no-standby, relay clicking and shutdown faults, letting a technician locate fuses, switching devices and feedback optocouplers and measure the expected rail voltages. Verify that the power board installed matches this document, because Sony used several supply variants within one model range.
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