home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
World of Ham Radio 1997
/
WOHR97_AmSoft_(1997-02-01).iso
/
mods
/
kenwood
/
asb_text
/
asb0008.txt
< prev
next >
Wrap
Text File
|
1997-02-01
|
2KB
|
39 lines
==============================================================================
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 # 8
MODEL: R-599D
SUBJECT: SERVICE NOTES
1. VFO drift: Bad Q1 3SK22 (Y) (X40-0016-18). Also change R1 from
270K to 1 Meg Q1 bias.
2. Low sensitivity: Check Q1 3SK22 (GR) (X44-0020-00).
3. No transceive operation: Check for dirty contact of transceive switch
or broken wires at switch.
4. Receiver sensitivity: Q4 2SC733 (Y) on IF unit (X48-0011-00).
5. No receive with transceive switch in the TX or reverse: Check for cut
coax at VFO terminal of IF unit (X48-0011-00).
6. No VFO receiver: Check L3 at Q1 in VFO (X40-0016-00).
7. Receiver 10 to 20 dB down: Check protection diodes D1, D2 1N60 at
(X44-0020-00).
8. FM doesn't work: Check T-8 discriminator transformer on (X48-0011-00).