Service difficulty report · Transceiver · Bolkms BO105S

Difficulty date
April 16, 1998
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N81832
Make and model
Bolkms BO105S
Aircraft serial
S828
Part
Transceiver
Part number
064101902
Condition
Failed
Location
Cockpit
Component
KY196
Stage of operation
IN
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

HEAVY STATIC AND NO SIDETONE. PERFORMED PRELIMINARY INSPECTION. ADJUSTED C/N SQUELCH AND SIDETONE. REPAIRED. ALSO ADJUSTED CARRIER SQUELCH. FOUND TRANSMIT POWER OUT LOW. REPLACED C623 AND C624 CAPACITORS. NO HELP. REPLACED T604 TRANSFORMER. REPAIRED BUT FOUND MODULATIONDISTORTED AT 85% MODULATION. REPLACED Q120, Q121, Q122, Q125 AND Q126 TRANSISTORS. MODULATION STILL DISTORTED.