Synchro-bias
New ClassA
right channel i am monitoring its -ve
21.9 / 22mv at 10mins another 5 later, had to turn off clicking sound again, around 23mv i think didnt look more concerned to turn it off
nice warmth on heatsink this time at 10mins ( not overly warm) again Q6111 and its heatsink has all the heat
let it cool and check
right channel at 1 min
then will monitor left
what the hell is the clicking, wasnt present earlier, maybe leaving DMM on all the time from start up
fired up again right channel ( didnt have to adjust left, but maybe gave right too much)
around 30 secs and a bit - 0.8mv then the clicking sound again, i turn it off
mmm, so maybe service manual is correct 1mv at 1min then it warms up to 21 -23mv range, dont want to cook the poor V9
previous post:
left channel, was good went to 1.1mv in a about a minute
right channel, not sure started low, may have turn it up a bit more, but i had it at 1.2mv at about 1 min currently 5mins - later 18mv, see what is at 10min
** attempt again ***
clicking sounding - my brother had a look also, around or under diodes maybe a transistor - strange reaction with DMM
update:
fired up sound was happening, my brother filmed while i monitor meter 1.5 mv around 45 secs so higher than left, which also made the same sound
video soon
21.9 / 22mv at 10mins another 5 later, had to turn off clicking sound again, around 23mv i think didnt look more concerned to turn it off
nice warmth on heatsink this time at 10mins ( not overly warm) again Q6111 and its heatsink has all the heat
let it cool and check
right channel at 1 min
then will monitor left
what the hell is the clicking, wasnt present earlier, maybe leaving DMM on all the time from start up
fired up again right channel ( didnt have to adjust left, but maybe gave right too much)
around 30 secs and a bit - 0.8mv then the clicking sound again, i turn it off
mmm, so maybe service manual is correct 1mv at 1min then it warms up to 21 -23mv range, dont want to cook the poor V9
previous post:
left channel, was good went to 1.1mv in a about a minute
right channel, not sure started low, may have turn it up a bit more, but i had it at 1.2mv at about 1 min currently 5mins - later 18mv, see what is at 10min
** attempt again ***
clicking sounding - my brother had a look also, around or under diodes maybe a transistor - strange reaction with DMM
update:
fired up sound was happening, my brother filmed while i monitor meter 1.5 mv around 45 secs so higher than left, which also made the same sound
video soon
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