home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Hacker Chronicles 2
/
HACKER2.BIN
/
000.SB008.DOC
< prev
next >
Wrap
Text File
|
1993-04-19
|
865b
|
28 lines
SB-008
Service Notes on R-599A/D 11-2-77
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).
(c) 11277TKC
Downloaded From P-80 International Information Systems 304-744-2253