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Steve_P · 17th Jan 2012, 4:37 pm

Check the following:

UL41 -

1 and 8 - Heater.
3 and 7 - Connected to R21 and then Deck, Also R19. R21 is 220 Ohms, R19 is 1 Kilohm.
Pin 6 - Goes to R18 (47K) then C26 (THAT capacitor.)
Pin 5 goes to HT (C33 - 16uF)
Pin 2 - Goes to the Output Transformer via that plug and socket and then to C32.

C33 and C32 are the smoothing can and these caps are linked together using a 10 k resistor,

If you needt the colour codes from the resistors, then they are here:

http://www.vintage-radio.com/repair-...resistors.html

As the wire we don't know about is Green, maybe it should be on 3 rather than 4. What's on the other end of it? Pin 4 is not used in the UL41, but it is sometimes used as an anchor point (Bush DAC90A!) but if there's only one wire there, then it is wrong.

The component values here are Trader ones.

Cheers,

Steve P.

17th Jan 2012, 4:37 pm	#82
Steve_P Dekatron Join Date: Sep 2003 Location: Bolton, Greater Manchester, UK. Posts: 6,644	Re: Bush AC34, no sound. Check the following: UL41 - 1 and 8 - Heater. 3 and 7 - Connected to R21 and then Deck, Also R19. R21 is 220 Ohms, R19 is 1 Kilohm. Pin 6 - Goes to R18 (47K) then C26 (THAT capacitor.) Pin 5 goes to HT (C33 - 16uF) Pin 2 - Goes to the Output Transformer via that plug and socket and then to C32. C33 and C32 are the smoothing can and these caps are linked together using a 10 k resistor, If you needt the colour codes from the resistors, then they are here: http://www.vintage-radio.com/repair-...resistors.html As the wire we don't know about is Green, maybe it should be on 3 rather than 4. What's on the other end of it? Pin 4 is not used in the UL41, but it is sometimes used as an anchor point (Bush DAC90A!) but if there's only one wire there, then it is wrong. The component values here are Trader ones. Cheers, Steve P. __________________ If we've always had it, why is the Car Boot open? You're not sneaking another Old TV in are you...?