Test readings, amplifier connections
Test readings, amplifier connections |
4-pin connector (loudspeaker) |
2-pin connector (power supply) |
Pin No.
|
Lead colour
|
Component/
Function |
In/out
|
Test conditions
|
Across
|
Test reading
|
See
|
1
|
BK
|
Ground
|
In
|
Always
|
B+ -1
1-B- |
B+
<0.5V |
|
2
|
RD
|
Power supply (+30 circuit)
|
In
|
Always
|
2-B-
B+ -2 |
B+
<0.5V |
|