Kenwood TR-7625 Service Manual page 22

ADJUSTMENTS
1 .
PLL Adjustments (See Fig. 1 on page 28 for Set-up)
Measuring polnt
I
Adjust
Condition Reference Remarks
Method
I
1 Voltage
check
and ad
justment
lnltial
control
setting
11 POWER SW: ON
HI LOW SW: HI
MR SW: OFF
MODE SW: S
MHz SW: 6
100 kHz SW: 0
10 kHz SW: 0
SUBTONE SW: 0
5Hz SW: 0
1
REMOTE SW. OFF
I
PLL T9 (J11
A--
DC VTVM
SEND/REC. SEND
b * E C . REC.
~
3 1 Same as above.
41 Same as ltem 2)
+ -
rurn the 11
3
core counter 0 46V
ypp
clockwise 180'from oscll
2 PLL
RF VTVM
100 kHz SW: 0
10 kHzSW. 0
5 kHz SW: 5 kHz
I
1
Tp4
1
p L L
F T G ; x ~ ~ % ~ ~
HZ
- - -
71 MHz SW: 5 Frequency PLL
---
MODE SW.
3
1
SENDIREC SW: SEND
10) MHz s w : 4
5 kHz SW: 0
,
MODE SW: S
I 1
V R l ~ 1 3 3 3 0 0 0 M H z
1
1
SENDIREC. REC.
FCOUNTER PLL
-
PLL
PLL
1 1
3 3000 H z 0 Hz
- -
133 7000 MHz
+500 H z
1
MODESW:,I)
I
SENDiREC. SNED
Recheck the frequericles
n ltem ( 5 ) through i9! If
they are deviated, readjust1
L l through
1 5
necessary
151 MHz SW: 5
100 kHz SW: 9
10 kHz SW: 9
MODE SW: S
SEND/REC REC
161 MHz SW. 7
1
SEND/REC SEND
1
1 0 0 kHz SW: 0
1
10 kHz SW: 0