Kenwood TM 2550 A Owners Manual

Page 2

Thank you for purchasing the new TM-3530A/2570A/2550A/25505/2530A IranS-
ceiver. Please read this instruction manual carefully before pleoing your transceiver in
service. This unit has been carefully engineered and manufacmred to rigid quality stana
dards. and should give you satisfactory and dependable operation for many years

This Instruction Manual covers the following models:
TM-3530A 220 MHZ FM transceiver with KENWOOD brand
TM-257OA 144 MHz FM transceiver with KENWOOD brand;
TM-2550A 144 MHz FM transceiver with KENWOOD brand
TM-2550E 144 MHz FM transceiver with KENWOOD brand;

(UK. and Europe version)
TM-2530A 144 MHz FM transceiver with KENWOOD brand.

When there are differences in operation separate instructions will be given for each
model, Illustrations show the TM»2 550A.

The following explicit definitions apply in this manual:

Note: If disregarded. inconvenience only, no risk of equipment damage or personal
injury.

Caution: Equipment damage may occur. but not personal inJury.

Page 35

5-6. ADJUSTMENTS

(Uppercase)

(Lower case)

Final unit

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Top view

5-6-1. Cover removal

For each of the upper and lower cases, remove four
screws as shown in the illustration. Be careful of the
speaker wiring on the upper case

Cautions:

1. Before removing the cover, turn the DC power sup-
plys power switch OFF and disconnect the power ca»
bla.

2. Do not pinch wiring when opening or closing covers.

Notes:

The following cautions pertain for the adjusting points.

1. Never touch adjustment points other than those indi»
cated by the instructions

2. When adjusting or cutting a part, avoid contact with
nearby parts.

5-6-2. Low power output

Adjust VH4 on the Final unit to the desired power level.
Adjustment is possible up to 60W with the TM-2570A,
40W with the TM72550A/2550E and 20W with the
TM-3530A/2530A.

5-6-3. Microphone gain
VR7 for microphone gain control.

5-6-4. DTMF level
Adjust VR1 (X604 280-10) to the desired level.

5-6-5. Sidetone and beeper level

The autopatch sidetone level during and beeper level

transmit are adjustable. As the volume is advanced, the

level increases.

1. Adjust the VOL control to your normal listening level,

2. With the PTT pressed any key on the keyboard switch
depressed, adjust VRZ,

5-6-6. RF power meter

Adjustment is required after adjusting the low power out,
put. VFl4 for RF power meter.