
I have two 1k resistors and 150uF Capacitor, i see on yours there are one 2k resistor and 470uF Capacitor, and an extra 470 pF.
By the Line in, you got 10uF and i have 0.22uF Polyester Film Capacitor .
Wonder if there maybe should be an 470 pF between the two 1k resistors?
You can see on the photo all the differences i discovered. Red markings seems to be the same as on yours, blue numbers are different
I have two 1k resistors and 150uF Capacitor, i see on yours there are one 2k resistor and 470uF Capacitor, and an extra 470 pF.
By the Line in, you got 10uF and i have 0.22uF Polyester Film Capacitor .
Wonder if there maybe should be an 470 pF between the two 1k resistors?
You can see on the photo all the differences i discovered. Red markings seems to be the same as on yours, blue numbers are different
I would assume yours in correct for that version unless it looks like they have been changed TUAC were continually changing circuit designs all through production. I have a TD500 I will try to get some pics the next few days.
Were the 0r33 resistors ok. Out of curiosity have you checked all the output transistors ?
The diodes you have marked as 1n4148 next to .1k 250 either side of the op amp I'm sure should be 15v zenners ?
0.33, no.. they were about 4-6 ohms, all of them measured differently.
The top one BC182B i got and it has one shorted leg. I waiting for a replacement for that.
Same as the output transistor marked 14, Hfe should be at minimum 15.. Found an original with same labeling.
I just found out that the 10 ohms by the 40871 are Wirewound. I will replace all of these type of resistors with Wirewound Cement Filled Ceramic.
I thought before that these two where 1n4148 next to .1k 250 are now changed to 1N4109 on picture, check on the image at the top of the page
6 of these should be 0r3
Yes, as you can se on the photo in top of the page, 6 of the Wirewound resistor are 0.33ohm the other 2 are 10 ohm. I have now updated bouth photos showing component description so it is not misleading
Do they measure correct, they do burn out. If the output transistors have gone at some point it can take them with it. I have a TD150 where they had gone and it still worked but didn't sound quite right