Kenwood TS-440S Serivce Manual page 93

s
TS-4405
ADJUSTMEN T
• RX ADJUSTMENT
Measurement Adjustment
Item Condition Test
equipment Unit Terminal Unit Part Method
Specification/Remark s
1 IF AM P
(common)
FREQ 14 .1750MH z
MODE US B
RF GAIN Control MA X
Use the minimum SSG inpu t
possible during alignment .
SS G
AF V . M
Oscilloscope
AF dummy -
load (8S2)
Rea r
Panel
AN T
EXT .SP
RF T4,5, 3
--------- -
T7,8,1 5
9, 12 ,
10,11
MAX
Repeat 2–3 times
in case of T4,5,3,12 ,
10,11
S/N 10 dB or more at – 6d B
input . 1V or more/8S2 a t
AF GAIN control MAX .
2 . 2nd MI X
balance
FREQ . 14 .1750MH z
MODE US B
Connect the SSG to ANT terminal .
SS G
AF V . M
Oscilloscope
RF
VR2
MAX AF Noise level .
RF VR1 MIN AF noise level .
3 . 1st MI X
balance
FREQ 100 .0 (100kHz )
MODE
USB
RF T i
TC1
Internal spurius bea t
MIN .
Repeat 2–3 times 70dB or mor e 4 . IF TRAP FREQ 29MHz Band
SSG 45 .05MH z
OUT 80 dB!,
5 RX DE T
Balance
1) FREQ 14 .1750 MH z
MODE US B
RF GAIN . MI N
IF SHIFT : CENTE R
RF GAIN . MAX afte r
adjustment
RF V M
o r
Oscilloscope
IF 0 9
(emitter )
(R77)
IF TC1 MI N
6 . IF AM P
(SSB)
FREQ 14 .1750MH z
SSG 14 .1760 MH z
OUT 0 dB µ
MODE USB
SS G
AF V . M
Oscilloscope
Rea r
panel
IF L1,2, 3
4,18,5
MAX AF outpu t
Use the minimu m
SSG input possibl e
during alignment .
IF
L6 MAX AF outpu t 7 IF AM P
(FM)
FREQ 14 .1750MH z
SSG 14 .1750 MH z
MOD 'I kHz, DEV : 3kH z
OUTPUT :30dB µ
MODE : FM
ANT IF VR3 Full scale 60 30dB±10d B
/d B
8 . S-METE R
(FM)
FREQ . 29 .0000MH z
MODE F M
SSG MOD OF F
OUTPUT :30dBµ
/
9 . S-METE R
(SSBI
1) No signa l
(SSG output : OFF)
S-meter IF VR2 Set to starting point .
( . Meter zero )
2) FREQ 14 .1750 MH z
MODE US B
SSG output 8dBµ
SS G
S-meter
Rear
panel
ANT IF L3 S 1
Adjust counter clock -
wise from peak .
(turn slug out )
3) SSG output 40dbµ VR3 S9 40dB±6d B
10 . Squelc h
threshold
1) MODE C W
SELECTIVITY WID E
SQL control 12 o'clock
Speaker EXT .
SP
IF VR4 Adjust VR slowly an d
stop at threshold .
12 o'cloc k
11 . Nois e
Blanker
1) FREQ 14 .1750 MH z
NB SW O N
SSG output 14 .175MH z
First adjust 20dB input, the n
use the minimum input a s
possible .
SS G
DC V . M
Oscilloscope
Rea r
panel
AN T
EX T
SP
R F
R14 6
(10kS2)
T26
27
MI N
21 Noise Gen .
Low level
Noise Geri .
SP
T2 6
27
MIN noise leve l
12 . Beeper 1) AF GAIN Control : 12 o'clock
AF V .M EXT . IF VRIO 120mV/88
±10m V
Depressing
I
A =Bland AM key at Oscilloscope S P
the same tim e
2) POWER SW O N
3) Set to MEMORY CH17 whe n
turning VFO .
AF dummy
load
9 3