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World of Ham Radio 1997
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WOHR97_AmSoft_(1997-02-01).iso
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asb1043.txt
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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 # 1043
MODEL: TS-950SDX
SUBJECT: YG-455S-1 Installation Note
Symptom: When the YG-455S-1 is installed, the LSB audio is slightly off
pitch. This characteristic is corrected using the "Service Adjustment"
menu. Early models of this transceiver did not make this adjustment
available to the the individual operator unless they had access to a
service manual.
Countermeasures: A menu option has been added to Menu 07 on late versions
of this transceiver which allows the individual operator to "correct"
this audio shift. This has been accomplished by changing the program of
the ROM chip IC-19 on the Digital Unit X46-3130 1/2, and by updating the
operators manuals. Installing the new ROM on early versions of this
transceiver will allow the operator the same convenience as is provided
on later serial numbered sets.
Parts Required:
Qty Descriptlon Old Part No. New Part No. Circuit Description
1 ROM 27C512BJDUF 27C512BJDUG IC-19
or
27C512RJDVF
1 Inst. Manual B62-0229-30 B62-0229-30 N/A
Time required for this modification is 30 minutes or less.
Service Code A:11 B:X46-3130 1/2 C:IC19 D:91