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Test – Apply 12 volts to the board. Measure with a DVM or VOM that 11.5 volts (or more)
appears at the left center pad where transformer T3 will be installed.
Your Measurements/Observations - ______________________________________________
____________________________________________________________________________
Receive Main Audio Amplifier
[ ]
Install transformer T3; note orientation, "P" side toward the interior of the PC board. There is
no need to solder the mounting tabs; doing so makes it virtually impossible to remove the
transformer should it be mounted incorrectly.
[ ]
Install transistors Q3, Q4, Q5 and Q6.
[ ]
Install resistors R5, R6, R9, R10, R11, R12 and R13.
[ ]
Install capacitors C4, C5, C8 and C11.
[ ]
Install electrolytic capacitors C6, C9, C10 and C82 matching the polarity markings on the case
with those on the PCB.
- Figure 3 -
5
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