ESC quantum Q602 module driver unknown!
the 2 outputs speaker works but
the QA7 irf640 burns intantanemant
measures:
vacuum amps consumes 1.79 amperes
QA7 irf640: 1 -27.36 volt dc 2: zero volt dc 3 -36.17 volt dc
QB7 irf640 1 -36.17 volt dc 2 zero volt 3 -36.04 volt dc
on the unknown module:
next to irf640 burn
Q23 bipolar 2222: 1 8.94 volt dc 2 9.39 volt dc 3 9.04 volt dc
Q24 bipolar 2222: 1 8.49 volt dc 2 8.94 volt dc 3 90.4 volt dc
q25 bipolar 2907A 1 8.49 volt dc 2 9.39 volt dc 3 -9.09 volt dc
on unknown module:
next to the irf 640 fontionnel
q23 bipolar 2222a: 1 0.85 volt dc 2 0.75 volt 3 9.04 volt dc
q24 bipolar 2222a: 1: 0.94 volt dc 2 0.87 volt dc 3 9.04 volt dc
q25 bipolar 2907a 1 0.44 volt dc 2 0.77 volt dc 3 -9.08 volt dc
[/ATTACH]
the 2 outputs speaker works but
the QA7 irf640 burns intantanemant
measures:
vacuum amps consumes 1.79 amperes
QA7 irf640: 1 -27.36 volt dc 2: zero volt dc 3 -36.17 volt dc
QB7 irf640 1 -36.17 volt dc 2 zero volt 3 -36.04 volt dc
on the unknown module:
next to irf640 burn
Q23 bipolar 2222: 1 8.94 volt dc 2 9.39 volt dc 3 9.04 volt dc
Q24 bipolar 2222: 1 8.49 volt dc 2 8.94 volt dc 3 90.4 volt dc
q25 bipolar 2907A 1 8.49 volt dc 2 9.39 volt dc 3 -9.09 volt dc
on unknown module:
next to the irf 640 fontionnel
q23 bipolar 2222a: 1 0.85 volt dc 2 0.75 volt 3 9.04 volt dc
q24 bipolar 2222a: 1: 0.94 volt dc 2 0.87 volt dc 3 9.04 volt dc
q25 bipolar 2907a 1 0.44 volt dc 2 0.77 volt dc 3 -9.08 volt dc
[/ATTACH]
Attachments
here are the measurements with a signal 30 Hz 80 millivolt on rca
amp on 12.7Volt 1.7 amperes
speaker output 1.7 volt 30Hz
see photo attached
I also made the measurements on connector down left
1: 41.4 milivolt DC
2 Si: 89 milivolt 30Hz
3 +45: + 31.30 Volt DC
4 -45: - 31.40 volts DC
5 G: 47 milivolt Dc
6 +10: +9.05 volt Dc
7 -10: -9.07 volts dc
the right connector has the same value
I'm going to measure the 6 transistors: q23 q24 and q25 right and left
I removed the 6 q23 q24 q25
the amp works without!
B + 12volt 4.01 ampere
signal 30Hz 32 milivolt at the RCA
output hp 2.77 volt 30Hz
the amp is warm for 3 hours
measurement on empty slot: black probe on RCA shield
to the left
q23:
1: 2.82v 100hz
2: 9.36v dc
3: 9.01 vdc
q24:
1: 40milivolt 60hz
2: 3.35volt 100hz
3: 9.01volt dc
q25:
1: 40milivolt 60hz
2: 9.36 volts dc
3: -9.12 volts dc
to the right
q23:
1: 1.95volt 100hz
2: 9.36 volts dc
3: 9.01volt dc
q24:
1: 42milivolt 60hz
2: 3.02 volt 100hz
3: 2.01 volt dc
q25:
1: 42 milivolt 60hz
2: 9.35 volts dc
3: - 9.12 volt dc
i also measured voltage and frequency from b3 to b7 and a3 to a7
if you are interested ?
the amp works without!
B + 12volt 4.01 ampere
signal 30Hz 32 milivolt at the RCA
output hp 2.77 volt 30Hz
the amp is warm for 3 hours
measurement on empty slot: black probe on RCA shield
to the left
q23:
1: 2.82v 100hz
2: 9.36v dc
3: 9.01 vdc
q24:
1: 40milivolt 60hz
2: 3.35volt 100hz
3: 9.01volt dc
q25:
1: 40milivolt 60hz
2: 9.36 volts dc
3: -9.12 volts dc
to the right
q23:
1: 1.95volt 100hz
2: 9.36 volts dc
3: 9.01volt dc
q24:
1: 42milivolt 60hz
2: 3.02 volt 100hz
3: 2.01 volt dc
q25:
1: 42 milivolt 60hz
2: 9.35 volts dc
3: - 9.12 volt dc
i also measured voltage and frequency from b3 to b7 and a3 to a7
if you are interested ?
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- amp ESX quantum Q602 module driver unknown!