Hi, I have a panasonic tv and would like to check the voltages from the power supply.
I have looked at the schematic for ic2008 and 8403 but can not locate these on the pcb.
The board uses 3 digit id,s and if prefixed by d or r
Can anyone help?

Mark, December 2016

It may well be that ic 2008 is a component BU 2008 a four pin bridge rectifier rather than the typical in line integrated circuit.

As for 8403 - again that might be the component type rather than the circuit designation - PAM 8403 is a stereo audio amplifier and will have its number printed on it rather than on the circuit board - the circuit board will identify it with a different number.

Each of these may have a heat sink on top preventing you from seeing the component type number.

All of this is pure guesswork - no warranty expressed or implied.

Good Luck..., December 2016