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Bride of Zen, Bride of Son of Zen
Bride of Zen, Bride of Son of Zen
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Old 11th February 2018, 03:17 PM   #91
darrr is offline darrr
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I'll check. Now I have p102 on max and bias is 2,8v if plugged in rca with CD but wihout rca it's 5,0v. Second channel still 5,6v. Caps are in good direction.
I found- R105 is ca. 70k but I'm 100 % sure that it was correct 100k

Last edited by darrr; 11th February 2018 at 03:39 PM.
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Old 11th February 2018, 04:28 PM   #92
mjf is offline mjf  Austria
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........input cap 1uF could be damaged......
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Old 11th February 2018, 04:53 PM   #93
darrr is offline darrr
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not 100k? should I change channel to check it?
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Old 11th February 2018, 05:04 PM   #94
mjf is offline mjf  Austria
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you can solder out the 1uF cap and measure again.......
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Old 11th February 2018, 05:29 PM   #95
darrr is offline darrr
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wow. There is 2,9v on input before 1u.there are 1u/400v jantzen audio. what kind can I replace? maybe some bigger for example 3u3?
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Old 11th February 2018, 05:44 PM   #96
mjf is offline mjf  Austria
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.......you mean 2,9V on the node 6,2k and 100K (without cd-player connected)?

1uF is big enough i think , this gives you low pass frequency lower than 2Hz....
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Old 11th February 2018, 06:04 PM   #97
darrr is offline darrr
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Yes, I unplugedd CD an 2,9v was on rca in. I soldered it out - there is 10Mohm on cap. Now all points measured looks ok ,
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Old 11th February 2018, 06:36 PM   #98
darrr is offline darrr
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I am concerned about that problem with cap-what was the cause of damage becouse everthing was ok
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Old 13th February 2018, 10:00 AM   #99
darrr is offline darrr
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Quote:
Originally Posted by darrr View Post
I am concerned about that problem with cap-what was the cause of damage becouse everthing was ok
I have replaced the damaged jantzen cap with a cheap replacement and now all voltage values ​​are stable.
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Old 13th February 2018, 02:53 PM   #100
mjf is offline mjf  Austria
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a damaged cap at the input is a rare event.........
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