Kenwood TS-440S Service Manual page 92

TS-440S
Item
7. PLL 1 1 MODE : AM
62MHz BPF Readjust T9 I VC02 OSC coil) to
unlock. !Core is fully bottom po-
sition)
21 Connect 560fl resister in Tracking
Gen. output line. Use oscillo-
scopes probe to connect to spec-
trum analyzer.
8. VC02 1 I Reset operation must also be
performed.
*See a microprocessor
operation check.
1 I FREQ : 1 4. 0000MHz
MODE : A M
21 FREQ : 1 3. 999, 9 : MHz
MODE : A M
31 FREQ : 1 4. 000,00 MHz
MODE : A M
9 . PLL 30M H z F REQ : 1 4. 2 50.00MHz
MODE : A M
BPF
1 0. PLL 38 . 5 - F REQ : 1 4. 250.00M Hz
39MHz SPF MODE : A M
1 1 . PLL VCO 1 I Disconnect R F unit coax.
1 6 . 5 - IVC OI
36MHz)
21 Connect 560fl resistor in Track-
BPF
ing Generator output line.
Use oscilloscope ' s probe to
connect to spectrum analyzer.
1 2. 39MHz
F REQ : 24. 9 500M Hz
Spurius MODE : A M
radiation
1 3. VC0 1 1 ) FREQ : 2 9 . 9999MHz
MODE : AM
F REQ : 22.0000M Hz
21 FREQ : 2 1 . 9999MHz
F REQ : 1 4. 5000MHz
31 FREQ : 1 4. 9999MHz
FREQ : 7. 5000MHz
4) FREQ : 7.4999MHz
FREQ : 30.0 i30kHzl
92
Measurement
Test
Condition
e q u i p m e n t
Tracking
Gen.
Spectrum
analyzer
Probe
DC V . M
S pectrum
analyzer
Oscilloscope
Oscilloscope
cable Tracking
Generator
Probe
S pectrum
analyzer
S pectrum
analyzer
DC V.M
ADJUSTMENT
Adjustment
U n it Terminal U n it Part
PLL ICB- 1
11 pin)
TP4 T6, 7,8
IR641
PLL TP5 PLL T9
IL 2 1 I
PLL TP4 PLL VR 1
IR 641
PLL TP7 PLL T 1 0, 1 1
I C 1 2-5pin
' 1 2
PLL TPB PLL T 1 3, 1 4
IR 1 1 21 ' 1 5
PLL IC 1 4- 1 pin
TP9 PLL T 1 6, 1 7
IL33) ' 1 8, 1 9
PLL V R 2
PLL TP9
IL33)
T 2 1
TP 1 0
PLL RF T 2 2
IR 1 381
T 2 3
T24
S pecification/Remarks
Method
rnAcrnc
GENERATOR
TP4
59.5MHz
6 . 4V T9 has two peaking point.
Adjust as shown below .
± 0. 1 V
2 . 2 - 3 . 0V
L23 and L 2 1 shorted
to ground. IPLL
20dB
unlocked )
or more
Adjust spurious radia-
tion level. 1 5 8 . 2 5MHz)
58 . 2 5
MAX Ref. 0. 3V/p-p
MAX Ref. 0 . 2V/p-p
37. 5dB
Ripple
3dB or less
4 5 d B or more
42MHz
ll
M"Om
42dB or more
3 1 M H z 39MHz
± 0. 1 V
5. 3 - 6 . 3V
± 0. 1 V
2 . 5V
5 . 3 - 6 . 3V
± 0. 1 V
5 . 3 - 6 . 3V
± 0. 1 V
5 . 5 - 6 . 5V
3dB or less
[![GOOD
N G
T9
66.5MHz
Less than 2dB
between peak and
point of 3 7 . 5 M H z .