E
Eugen T
- Jan 1, 1970
- 0
Hi all,
I have schematic with a couple of capacitors that that I don't know the
value - I don't have access to capacitance meter right now
Caps are pretty small, about the size of 1/4 Watt resistors - most probably
in pico-farads. Here is what I found written on some of them:
K5U 334M, K5R 43K, 221 ???, FC2 9916, 104 K5X
I think I'll just replace them with similar size/look caps, but it would be
nice to know their exact values.
Also, can somebody tell me how to figure out if the diode in schematics is
Zener or just a diode? There is no schematic available for the thing that I
am working on (propriatary stuff) - one little red diode/zener is blown
apart - I can't even read what's written on it (well, there is starting 1N -
but 1N series include both - zener and 'normal' diodes). Diode is in series
with (resistor parallel to capacitor) on negative end and, I believe,
capacitor on the other (positive). I think it's just a diode, because 1). I
am 99% sure it's in path of small signal (unamplified sound to power amp)
and 2). It looks like 3 other similar looking diodes (NOTHING WRITTEN ON
THEM - only line in the middle - direction can be figured out by line drawn
on PCB).
I have schematic with a couple of capacitors that that I don't know the
value - I don't have access to capacitance meter right now
Caps are pretty small, about the size of 1/4 Watt resistors - most probably
in pico-farads. Here is what I found written on some of them:
K5U 334M, K5R 43K, 221 ???, FC2 9916, 104 K5X
I think I'll just replace them with similar size/look caps, but it would be
nice to know their exact values.
Also, can somebody tell me how to figure out if the diode in schematics is
Zener or just a diode? There is no schematic available for the thing that I
am working on (propriatary stuff) - one little red diode/zener is blown
apart - I can't even read what's written on it (well, there is starting 1N -
but 1N series include both - zener and 'normal' diodes). Diode is in series
with (resistor parallel to capacitor) on negative end and, I believe,
capacitor on the other (positive). I think it's just a diode, because 1). I
am 99% sure it's in path of small signal (unamplified sound to power amp)
and 2). It looks like 3 other similar looking diodes (NOTHING WRITTEN ON
THEM - only line in the middle - direction can be figured out by line drawn
on PCB).