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World of Ham Radio 1997
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WOHR97_AmSoft_(1997-02-01).iso
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==============================================================================
K E N W O O D
>>> A M A T E U R R A D I O S E R V I C E B U L L E T I N <<<
==============================================================================
Kenwood Service Centers
Kenwood Service Corporation Kenwood Service Center, East
2201 East Dominguez Street 829 Lynnhaven Parkway, Suite 130
Long Beach, California 90801 Virginia Beach, Virginia 23452
Telephone 1-310-639-5300 Telephone 1-804-340-1702
==============================================================================
BULLETIN # 1023
MODEL: TM-732A
SUBJECT: S-Meter Squelch Scan Stop Improvement
Symptom:
On some early versions of the TM-732A scan will not stop when operating in the
S-Meter Squelch mode, even when the transceiver receives a signal with the
same level as specified when initiating the S-Meter squelch mode.
Corrective Action:
Change the value of C42 in the 144 MHz TX/RX Unit (X57-4000 A/4) and C242
in the 430 MHz TX/RX Unit (X57-4000 B/4) from 1 uF to 0.47 uF.
Parts Required:
Qty Description Kenwood Part No. Circuit Description
2 0.47 uF capacitor CK73FF1C474Z C42, C242
Caution: This modification requires soldering equipment rated for CMOS type
circuits. It also requires familiarity with surface mount soldering
techniques. If you do not have the proper equipment or knowledge do not
attempt this modification yourself. Seek qualified assistance.
Time required for this modification is 30 minutes or less.
Service code A:59 B:X57-4000 C:C42/C242 D:91