i have a new amp here mtx 6001 the red light comes on as soon as i put power to it. on one side i have big TO-247 i suspect is the outputs (IRFP240) x6 and on the other i have TO-220 cases 75339P (i suspect is the power supply)
on my TO-247 i have full 62v to the gate. and on the gates of my TO-220 i have -1.2v
should i pull the 75339P? are these the impossible to find ones?
thank you always to everyone here!!
on my TO-247 i have full 62v to the gate. and on the gates of my TO-220 i have -1.2v
should i pull the 75339P? are these the impossible to find ones?
thank you always to everyone here!!
Attachments
yes it over heated, the red protect light is still on. i cant seem to find a data sheet for this op amp the markings on the IC are..
KG27
NE55
32D
all i could find was a NE555 but this seemed to be something in a TO-220 case.
without knowing which pin is #1 all the pins are reading ~50v
there is a recessed dot in the corner of the IC does this indicate pin 1?
KG27
NE55
32D
all i could find was a NE555 but this seemed to be something in a TO-220 case.
without knowing which pin is #1 all the pins are reading ~50v
there is a recessed dot in the corner of the IC does this indicate pin 1?
yes, i had the pins mixed up, sorry
1. 55
2. 50
3. 50
4. 52
5. 50
6. 50
7. 50
8. 57
the op amp next to this one is at location U502
1. -62
2. -62
3. -61.4
4. -62
5. -48.7
6. -48.9
7. -61.9
8. -48.8
i have only the 2 opamps with 8 legs but i have 1x TL494C 1x LM339 and
2x 074C / EZ38641. these have 16 legs and are in a different part of the board
1. 55
2. 50
3. 50
4. 52
5. 50
6. 50
7. 50
8. 57
the op amp next to this one is at location U502
1. -62
2. -62
3. -61.4
4. -62
5. -48.7
6. -48.9
7. -61.9
8. -48.8
i have only the 2 opamps with 8 legs but i have 1x TL494C 1x LM339 and
2x 074C / EZ38641. these have 16 legs and are in a different part of the board
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- General Interest
- Car Audio
- MTX 6001 (red protect light)