Kenwood TS-950S Digital Referenzhandbuch

ASB-982

Service Bulletin Amateur Radio

Division

Subject: TS-950S/SD TX IMAGE ON 18.115MHZDate: 02/06/91

Some TS-950SD owners have reported a transmit image at

18.115MHz that causes the receiving station to hear

distortion on the carrier. If the operating frequency is

shifted 3KHz above or below 18.115MHz, the image

disappears. This modification will lower the image level

from -30dB (worse case) to better than -40dB by

installing a trap on the 455KHz I.F.

REQUIRED PARTS:

4pF TRIMMER CAPACITOR C05-0308-05

40pF TRIMMER CAPACITOR C05-0309-05

2.2uH COIL L40-2292-14

MODIFICATION:

1. Disconnect the power cord and antenna.

2. Remove the top and bottom covers (18 screws).

3. Locate the I.F. board on the bottom of the

transceiver. This is the back right board of the 4

boards on the bottom of the transceiver. Figure 1

4. Locate L36 by connector CN17 on the I.F. board.

Figure 2

5. Install and solder into place a 4pF trimmer

capacitor across L36. Figure 3

6. Install a 2.2uH coil and 40pF trimmer capacitor in

series from the output of L36 to ground. The can of

L31 can be used for ground. Figure 3

ALIGNMENT:

1. Connect the TS-950S/SD to a power meter and 50 ohm

load.

2. If you are working on the TS-950S Digital, connect

the DSP cables on the bottom cover to the back

panel. PAGE 1 OF 2

This modification is covered under the 1 year warranty.

Time required for this modification is 1 hr. or less. (C)

020691EWP

In the CW mode, adjust the front panel power control for 150W while the ALC level

is just at the starting point on the meter. This will create the highest image

level condition.

4. Using a monitor receiver with narrow filters

installed and AGC set to off, tune the receiver to

the image frequency.

5. Alternately adjust the two trimmer capacitors until

the image cannot be heard. This procedure may need

to be repeated several times.

6. Push the wire harness around the I.F. board toward

the chassis of the transceiver.

7. Assemble the transceiver.

FIGURE 1 FIGURE 2

FIGURE 3 SCHEMATIC

PAGE 2 OF 2

Copyright (C) 02/06/91 EWP for Kenwood U.S.A.

Corporation.

Andere Handbücher für TS-950S Digital

3

Dieses Handbuch passt für folgende Modelle

1

Inhaltsverzeichnis

Andere Kenwood Empfänger Handbücher

Kenwood

Kenwood R-5000 Bedienungsanleitung

Kenwood

Kenwood KR-V990D Bedienungsanleitung

Kenwood

Kenwood VR-409 Bedienungsanleitung

Kenwood

Kenwood KRF-X9995D Bedienungsanleitung

Kenwood

Kenwood E303MD Bedienungsanleitung

Kenwood

Kenwood KRF-V7771D Bedienungsanleitung

Kenwood

Kenwood KDC-3025 Bedienungsanleitung

Kenwood

Kenwood DPX-M3300BT Bedienungsanleitung

Kenwood

Kenwood Car Stereo System fm dual bander Bedienungsanleitung

Kenwood

Kenwood KRF-V7510D Bedienungsanleitung

Kenwood

Kenwood KR-V7050 Bedienungsanleitung

Kenwood

Kenwood KR-797 Bedienungsanleitung

Kenwood

Kenwood KR-V7040 Bedienungsanleitung

Kenwood

Kenwood KMM-106 Bedienungsanleitung

Kenwood

Kenwood VR-4090 Bedienungsanleitung

Kenwood

Kenwood R-600 Bedienungsanleitung

Kenwood

Kenwood AR-404 Bedienungsanleitung

Kenwood

Kenwood DVR-6100 Bedienungsanleitung

Kenwood

Kenwood KR-V8050 Bedienungsanleitung

Kenwood

Kenwood KMR-M408BT Bedienungsanleitung

Kenwood

Kenwood KR-6600 Bedienungsanleitung

Kenwood

Kenwood KMM-BT332 Bedienungsanleitung

Kenwood

Kenwood AR-304 Bedienungsanleitung

Kenwood

Kenwood KMM-118 Bedienungsanleitung

Beliebte Empfänger Handbücher anderer Marken

Garmin

Garmin GA 23 Bedienungsanleitung

Aiphone

Aiphone PS-12F Bedienungsanleitung

IMES

IMES TCS-01CA-PMI Bedienungsanleitung

BWI Eagle

BWI Eagle AIR-EAGLE SR Handbuch

AMIMON

AMIMON AMN12310 WHDI Bedienungsanleitung

Dual

Dual DMCPA79BT Betriebsanleitung

Sound Associates

Sound Associates SA652P Bedienungsanleitung

Sherwood

Sherwood NewCastle R-772 Bedienungsanleitung

Audio

Audio A10-RX Series Bedienungsanleitung

AllSee

AllSee PushShare PSRV1.1 Bedienungsanleitung

DEMAG

DEMAG DRC-DR D2 Bedienungsanleitung

Teleco

Teleco TVRCL868A02 Bedienungsanleitung

Bosch

Bosch RF3222E Bedienungsanleitung

Kramer

Kramer 631R Bedienungsanleitung

Xpress

Xpress xmc10 Bedienungsanleitung

JVC

JVC KD-MR1BTS Bedienungsanleitung

Omega Engineering

Omega Engineering UWTC-REC3 Bedienungsanleitung

e-survey

e-survey E300 Pro Bedienungsanleitung