Kenwood TS-950S Digital Manuel de référence

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.

Autres manuels pour TS-950S Digital

3

Ce manuel convient aux modèles suivants

1

Table des matières

Autres manuels Kenwood Récepteur

Kenwood

Kenwood KR-V990D Manuel utilisateur

Kenwood

Kenwood KR-V7070 Manuel utilisateur

Kenwood

Kenwood VR-7080 Manuel utilisateur

Kenwood

Kenwood KR-V7040 Manuel utilisateur

Kenwood

Kenwood DTF-2 Manuel utilisateur

Kenwood

Kenwood KR-V8090 Manuel utilisateur

Kenwood

Kenwood DVR-8100 Manuel utilisateur

Kenwood

Kenwood VR-705 Manuel utilisateur

Kenwood

Kenwood VR-407 Manuel utilisateur

Kenwood

Kenwood KR-V6040 Manuel utilisateur

Kenwood

Kenwood KMM-BT408DAB Manuel utilisateur

Kenwood

Kenwood kr-6340 Manuel utilisateur

Kenwood

Kenwood R-5000 Manuel utilisateur

Kenwood

Kenwood VR-207 Manuel utilisateur

Kenwood

Kenwood SMB 2700 Manuel utilisateur

Kenwood

Kenwood KRF-V7773D Manuel utilisateur

Kenwood

Kenwood KW-V940BW Manuel utilisateur

Kenwood

Kenwood VR-505 Manuel utilisateur

Kenwood

Kenwood KRF-V7771D Manuel utilisateur

Kenwood

Kenwood RZ-1 Manuel utilisateur

Kenwood

Kenwood DDX9904S Manuel utilisateur

Kenwood

Kenwood VR-6070 Manuel utilisateur

Kenwood

Kenwood KR-V9020 Manuel utilisateur

Kenwood

Kenwood VRS-5100 Manuel utilisateur

Manuels Récepteur populaires d'autres marques

Garmin

Garmin GA 23 Manuel utilisateur

Aiphone

Aiphone PS-12F Manuel utilisateur

IMES

IMES TCS-01CA-PMI Manuel utilisateur

BWI Eagle

BWI Eagle AIR-EAGLE SR Manuel

AMIMON

AMIMON AMN12310 WHDI Manuel utilisateur

Dual

Dual DMCPA79BT Mode d'emploi

Sound Associates

Sound Associates SA652P Manuel utilisateur

Sherwood

Sherwood NewCastle R-772 Manuel utilisateur

Audio

Audio A10-RX Series Manuel utilisateur

AllSee

AllSee PushShare PSRV1.1 Manuel utilisateur

DEMAG

DEMAG DRC-DR D2 Manuel utilisateur

Teleco

Teleco TVRCL868A02 Manuel utilisateur

Bosch

Bosch RF3222E Manuel utilisateur

Kramer

Kramer 631R Manuel utilisateur

Xpress

Xpress xmc10 Manuel utilisateur

JVC

JVC KD-MR1BTS Manuel utilisateur

Omega Engineering

Omega Engineering UWTC-REC3 Manuel utilisateur

e-survey

e-survey E300 Pro Manuel utilisateur