Sailor T2131 Service Information

Brand: Sailor

Model: T2131

Type: Service Information

Sailor T2131 is a powerful communication device designed for marine use. With its advanced technology, it offers reliable and efficient communication solutions, ensuring seamless connectivity even in challenging maritime environments.

Service Information

SERVICE INFORMATION S.P. RADIO A/S - AALBORG - DANMARK PAGE 1

JANUARY 1995 NUMBER 160

SAILOR TRANSMITTER T2131 AND T2135 ERROR 83

We have noted an increased error rate as regards error 83, too low output power.

The Reason; for this error is either the drive level being too high or overload of the power amplifier.

Both of these conditions result in excess voltage in the power amplifier. This causes the

power supply to reduce the voltage, which creates a reverse voltage over the basis col-

lector diode in the output transistors resulting in a short circuit.

The Solution; A protection circuit has been developed, which adjust the drive level to the voltage in

the amplifier. This circuit “Protection Unit Module 19” is mounted. Furthermore, the trans-

mitter is calibrated as described in Chapter 3, “Calibration”, in the Service Manual.

Mounting; The existing cable 526917 between the power amplifier and the connection board is dis-

mounted and replaced by 730142, protection unit with cables. Please see the enclosed

diagram and outline.

Spares; Protection Unit Module 19 can be ordered free of charge at S.P. Radio A/S in return for

information about the transmitter’s serial number. The S.P. number is 730142.

If you should have any questions in relation to the above, please do not hesitate to contact the service

department at S.P. Radio A/S, Phone; +45 96 34 61 00 or fax; +45 96 34 61 01.

SAILOR. FOR GLOBAL COMMUNICATION

SERVICE INFORMATION S. P. RADIO A/S - AALBORG - DANMARK PAGE 2

JANUARY 1995 NUMBER 160

T2135T2135

T2135

Modified LayoutModified Layout

Modified Layout

28371A

TO MODULE (7) J4

MODULE 12

UNIT

COMBINER

5-0-26412

TR3

TR2

ST1

ST2

5-0-26414

5-0-26411

ST10

ST5

ST11

ST6

5-0-26419

526516

MODULE 11

AMPLIFIER A

POWER

ST9

P11 P20P13 P22

P14

P12

5-0-26411

5-0-26419

P21

P23

526516

MODULE 11

POWER

AMPLIFIER B

530703

PROTECTION

UNIT

MODULE 19

TR7

SERVICE INFORMATION S. P. RADIO A/S - AALBORG - DANMARK PAGE 3

JANUARY 1995 NUMBER 160

T2135 Previous Layout

28371-SE

TO MODULE (7) J4

MODULE 12

UNIT

COMBINER

5-0-26412

TR3

TR2

ST2

ST1

5-0-26414

ST10

ST5

ST11

ST6

5-0-26411

526516

MODULE 11

AMPLIFIER A

POWER

P13

ST9

P11 P20 P22

P12

P14 P23

P21

5-0-26411

526516

MODULE 11

AMPLIFIER B

POWER

526917

TR7

526917

remove

To be

SERVICE INFORMATION S. P. RADIO A/S - AALBORG - DANMARK PAGE 4

JANUARY 1995 NUMBER 160

T2131 Modified Layout

28372B

TO MODULE 7 J4

ST2

ST3

ST1

5-0-26413

526918

ST10

ST5

ST11

ST6

5-0-26411

526516

MODULE 11

60.100

POWER

AMPLIFIER

ST9

530703

5-0-26419

PROTECTION

MODULE 19

UNIT

TR7

SERVICE INFORMATION S. P. RADIO A/S - AALBORG - DANMARK PAGE 5

JANUARY 1995 NUMBER 160

T2131 Previous Layout

28372-SE

TO MODULE 7 J4

ST2

ST3

ST1

5-0-26413

526918

ST10

ST5

ST11

ST6

5-0-26411

526516

MODULE 11

60.100

POWER

AMPLIFIER

ST9

TR7

526917

removed

To be

S.P. RADIO A/S • PORSVEJ 2 • DK-9200 AALBORG SV • DENMARK

PHONE INT. +45 96 34 61 00 • TELEX 69 789 SPRAD DK • TELEFAX INT. +45 96 34 61 01

E-MAIL: [email protected] • WEB: WWW.SAILOR.DK

Sailor T2131 Service Information

Sailor T2131 Service Information

Sailor T2131 Service Information

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