Tait Orca 5010 Скачать руководство пользователя страница 35

04/01 IPN: 449-51000-03

Radio specifications and circuit descriptions B - 9

Figure B-1: Circuit interface diagram for Tait Orca handportable radios (TOP B, C, G, H, I, J and K)

EV/ISS

AMENDMENTS

DATE

APVD

D.O.

CHKD

DRAWN

NO.SHEETS:

FILE NAME:

TAIT ELECTRONICS

IPN:

FILE DATE:

ISSUE:

ID:.

2.SC.

PROJECT:

DESIGNER:

1

7

TAIT ORCA : 450-530 MHZ

SYSTEM DIAGRAM

162403b

220-01624-03

8-Jun-00

B

ORCA

CJK

01A

INITIAL DES CC0 1624/001 002 003

BRD

JJ

CK

GR

25/11/99

02A

CCO NO.1624-004  AMP CHANGES

TS

 

 

 

16-12-99

03A

ECO NO 50 0788

CJK

JJ

 

 

29-05-00

03B

CCO NO 1624-005

CJK

08-06-00

93

SHEET 2

POWER-AMP

TX-VCO

ANTENNA

RX-ANT

PWR-SET

GND

+7V5-BATT

+5V-AN

TX-INHIBIT

PIN-SW

+7V5-SW

GATE-BIAS

+5V-TX

246

SHEET 3

RECEIVER

RX-ANT

SQL-DET

SQL-SET

FE-BIAS

RX-DET-AF

RSSI

RX-LO

GND

+5V-AN

DCFB

WB/NB

SPRING PROBE

BATTERY-

SPRING PROBE

DSP AUDIO

252

PROCESSOR

SHEET 4

RSSI

FE-BIAS

SQL-SET

SQL-DET

LCK-DET

TCXO-MOD

/SY-EN

SY-CLK

SY-DAT

PWR-SAVE

ACCESORY

TX-CNTRL

VCO-MOD

PWR-SET

DGND

GND

RADIO-TOP

INTERFACE-PCB

RX-DET-AF

+5V-DIG

+5V-AN

+7V5-SW

+7V5-BATT

PIN-SW

TX-INHIBIT

+14V

GATE-BIAS

DCFB

WB/NB

+5V-TX

R9

470

R10

150

PTT

TACT SWITCH

FUNC-2

TACT

FUNC-1

TACT

+SPKR

SPRING PROBE

-SPKR

SPRING PROBE

vco

sheet 6

2922

SHEET 5

SYNTH-VCO

TX-VCO

LCK-DET

TCXO-MOD

/SY-EN

SY-CLK

SY-DAT

VCO-MOD

PWR-SAVE

RX-LO

GND

TX-COM

+7V5-SW

+5V-AN

+14V

PL1

12 WAY SKT

INTER

22WAY SIDE ENTRY FLEXI BRD SKT

HEX

SWITCH

RSW1

16WAY BCD SW

1
2
4
8

C
C

Q1
BC847W

Q2
BC847W

R1

470

R2

470

C1

100N

C11

10N

C2

47N

R4

1K0

R3

1K0

C5
10N

C6
10N

C7
10N

C8
10N

C9
10N

C10
10N

C4
1N0

C3

100N

LK1

LK2

Q5
BC857W

Q4
BC857W R16

33

R14
4K7

R13

47K

47K

22K

Q3
DTC144W

1

2

3

R12
47K

R15

2K2

TP1

TP2

C15
1N0

C16
150P

TP3

TP4

TP5

TP6

TP7

TP8

TP9

TP10

TP11

TP12

TP13

TP14

SK3

SMA 90DEG SKT

UP

TACT

DOWN

TACT

SWITCH

1P1W

1

2

R5

2K2

R6
10

R7
10

MIC

MICORPHONE

1

+V

2

GND

GREEN

D1

DUAL LED

1

2

RED

D1
DUAL LED

3

4

RV1
10K LOG POT

4

5

CW RV1

10K LOG POT

1

3

2

TP15

TP17

TP16

R20

2K2

R17
180

R8

330

LK3

LK4

PTTSMD

TACT

+7V5-BATT

+7V5-ACC

PL1

+7V5-ACC

2

PL1

RXD

3

PL1

TXD

5

PL1

EXT-PTT

12

PL1

EXT-SPKR

9

PL1

GND

1

+5V-AN

+7V5-BATT

+5V-DIG

+5V-AN

+7V5-SW +7V5-BATT

+5V-AN

PL1

EXT-MIC

6

INTER

+7V5-SW

10

INTER

KEY-LATCH

16

INTER

EXP-LATCH

11

INTER

KEY-D0

8

INTER

KEY-D1

9

INTER

KEY-D2

13

INTER

SDAT

3

INTER

SCLK

5

INTER

RESET

1

INTER

GND

15

+7V5-SW

+5V-DIG

PL1

MOD-AUDIO

8

+7V5-SW

PL1

SENSE-0

10

PL1

SENSE-1

7

PL1

RX-DET-AF

4

PL1

EXT+SPKR

11

INTER

+5V-DIG

18

INTER

DGND

12

+7V5-BATT

+7V5-SW

INTER

RX-DET-AF

19

INTER

VOL-MAX

20

INTER

MOD-AUDIO

22

INTER

PTT

14

INTER

MISO

4

INTER

ON

2

INTER

TX-AUDIO

21

INTER

S-DATA-READY

6

+5V-DIG

+7V5-ACC

INTER

P37

17

+5V-DIG

INTER

GND

7

+5V-TX

+5V-TX

Accesory Connector

Interface

 PCB

link LK1 & LK2 if RV1 is not fitted

VOL-MAX

PTT

INT-MIC

RADIO-TOP

KNOB1

KNOB0

-SPKR

+SPKR

VOL-MIN

VOL-WIPER

VOL-MAX

KNOB3

KNOB2

KNOB1

KNOB0

RX-LED

TX-LED

ACCESORY

EXT-PTT

RXD

TXD

EXT-MIC

MOD-AUDIO

SENSE-0

SENSE-1

EXT+SPKR

EXT-SPKR

P37

INTERFACE

RESET

SCLK

SDAT

KEY-D2

KEY-D1

KEY-D0

EXP-LATCH

KEY-LATCH

TX-AUDIO

MISO

ON

FN1

FN2

PTT

Содержание Orca 5010

Страница 1: ...Tait Orca 5000 Handportable Radios Service Manual Issue 03 April 2001 IPN 449 51000 03 ...

Страница 2: ...i 04 01 IPN 449 51000 03 ...

Страница 3: ...04 01 IPN 449 51000 03 i Contents Part A Introduction Part B Radio specifications and circuit descriptions 00 1 1 1 0 2 34 ...

Страница 4: ...ii 04 01 IPN 449 51000 03 2 34 5 6 7 5 7 8 Part C Diagnostics and fault finding 9 8 7 1 8 8 8 0 8 8 Part D Servicing the radio 7 5 5 2 0 4 5 1 5 2 0 4 1 5 5 2 0 4 0 7 7 0 0 ...

Страница 5: ...04 01 IPN 449 51000 03 iii 5 0 7 0 5 3 5 3 8 8 5 8 8 2 4 2 04 0 2 4 1 2 4 0 2 4 0 0 2 4 0 0 2 4 0 Part E Battery packs and chargers 5 9 9 8 9 9 1 9 9 9 9 9 9 9 9 9 ...

Страница 6: ...iv 04 01 IPN 449 51000 03 8 9 Part F Accessories 5 8 8 5 8 8 6 A 8 6 A 8 6 A 8 0 6 A 8 A 8 6 2 4 8 6 2 04 8 8 6 A 8 1 Part G Additional information 0 0 0 0 1 1 1 1 0 0 0 0 ...

Страница 7: ...A P A R T Introduction Contents 1 1 ...

Страница 8: ...A 2 04 01 IPN 449 51000 03 ...

Страница 9: ... 5000 handportables 2 3 1 3 2 3 4 1 3 5 6 7 8 2 96 3 6 6 6 0 7 8 2 96 2 1 3 7 8 2 96 3 6 6 1 6 1 6 6 6 6 3 1 6 6 4 4 3 3 0 3 WWW technical support 0 1 5 5 111 1 2 What does this manual contain 7 3 92 1 5 6 6 3 6 6 6 What is included in the calibration service kit 3 5 7 3 96 7 3 96 8 8 8 ...

Страница 10: ...1 IPN 449 51000 03 3 7 3 896 7 3 96 7 3 96 7 3 96 6 3 3 7 3 9 7 3 449 5 7 3 A8 2 8A 2 896 2 1 6 1 2 2 6 3 3 4444 44 B Programming kit 3 5 7 3 96 8 8 8 3 7 3 896 3 3 7 3 9 7 3 449 Conventions 2 1 2 bold sans serif font 4 5 Radio Model Specifications ...

Страница 11: ... reserved G 336 400 MHz H 400 470 MHz I 450 530 MHz J 806 870 MHz Tx 851 870 MHz Rx K 896 941 MHz Tx 935 941 MHz Rx b Channel space IFBW 1 12 kHz Medium IFBW MB 20 25 30 kHz Channel spacing see note 1 2 10 kHz Universal IFBW UB 12 5 15 20 25 30 kHz Channel spacing c User interface 1 Elan 2 Excel 3 Eclipse 4 5010 5030 see notes 1 6 5 5035 see notes 1 6 6 5020 5040 see notes 1 6 d Air interface 1 Co...

Страница 12: ...rger or Orca Multi Charger USER GUIDES Guide ENGLISH M5010 000 00 050 M5020 000 00 050 M50TK 000 00 050 GERMAN M5010 000 01 050 M5020 000 01 050 M50TK 000 01 050 FRENCH M5010 000 02 050 M5020 000 02 050 M50TK 000 02 050 EURO SPANISH M5010 000 04 050 M5020 000 04 050 M50TK 000 04 050 SOUTH AMERICAN SPANISH M5010 000 05 050 M5020 000 05 050 M50TK 000 05 050 BRAZILIAN PORTUGUESE M5010 000 08 050 M502...

Страница 13: ...Orca 5000 series of handportables A 7 1 Fitting an accessory with D clip D 1 2 1 7 2 9 Fitting a non Tait accessory 1 Figure A 3 Fitting and removing a D clip to a Tait Orca 5000 handportable Installing the D clip Removing the D clip ...

Страница 14: ...one and earphone TOPA AA 010 3 wire lapel microphone and earphone TOPA AA 011 Light weight single speaker headset with in line PTT TOPA AA 012 Over the head headset with noise cancelling boom microphone TOPA AA 013 Behind the head headset with noise cancelling boom microphone TOPA AA 101 Speaker microphone 10 C two function buttons with D clip TOPA AA 102 Speaker microphone 30 C heavy duty two fun...

Страница 15: ...ion T952 042 USA and Canada 115 V 60 Hz input plug configuration T952 052 UK and Hong Kong 230 V 50 Hz input plug configuration Carrying accessories TOPA CA 001 Heavy duty carry case TOPA CA 002 Heavy duty holster TOPA CA 003 38 mm belt clip x 10 TOPA CA 004 Accessory port cover x 10 TOPA CA 005 55 mm belt clip TOPA CA 006 55 mm belt clip x 10 TOPA CA 101 Heavy duty carry case with D clip TOPA CA ...

Страница 16: ...A 10 The Tait Orca 5000 series of handportables 04 01 IPN 449 51000 03 ...

Страница 17: ... A 1 Typical anti static bench setup Warning 1 Caution CMOS devices 2 1 1 2 2 Screw head types 4 1 3 B 1 B 1 4 1 2 4 3 B 1 4 I 1 4 D 1 2 8 3 3 B 8I 8I 1 3 B D 1 2 8 Programming 2 5 6 2 1 4 3 to building earth not mains earth via 1 M series resistor conductive wrist strap conductive rubber bench mat metal frame 1 2 3 4 ...

Страница 18: ...A 12 Important information 04 01 IPN 449 51000 03 ...

Страница 19: ...B P A R T Radio specifications and circuit descriptions Contents 00 1 1 1 0 2 34 2 34 5 6 7 5 7 8 ...

Страница 20: ...B 2 04 01 IPN 449 51000 03 ...

Страница 21: ...oad impedance Rated power Distortion Response 13 Ω 500 mW 1kHz 60 deviation into 16 Ω 5 1kHz 60 deviation at rated power into 16 Ω 6 dB oct 1 3 dB cf 1 kHz 300 2550 Hz narrowband 300 3000 Hz wideband Spurious emissions to 1 GHz 1 to 4 GHz 136 470 MHz 1 to 12 75 GHz 470 MHz 57 dBm conducted and radiated 47 dBm conducted and radiated 47 dBm conducted only Group delay variation 50 µs at detected audi...

Страница 22: ...io output 300 3000 Hz Trunking data deviation as per MPT1327 narrowband mediumband wideband 1 5 kHz 2 4 kHz 3 kHz Audio response below limiting in limiting above 3 kHz input for 60 deviation distortion 6 dB oct 1 3 dB cf 1 kHz 300 3000 Hz 0 dB 0 4 dB cf maximum system deviation 450 2550 Hz 35 dB oct min 5 mVrms 5 at 1 kHz Ruggedness 2 minutes into infinite VSWR Stability 5 1 VSWR all phase angles ...

Страница 23: ...Ah NiMH 510g 530g 535g With TOPB500 2000mAh NiMH 550g 570g 575g Receiver Measurements as per ETS 300 086 Intermediate frequencies 21 4MHz and 455kHz Sensitivity 12dB SINAD 119dBm Sensitivity 20dB SINAD 114dBm Fixed Squelch Sensitivity 12dB SINAD or 16dB SINAD Nominal Selectivity 70dB NB 75dB WB Spurious Response 70dB Intermodulation 65dB Blocking 94dB Ultimate Signal to Noise Ratio EIA 37dB NB 42d...

Страница 24: ...H 510g 530g 535g With TOPB500 2000mAh NiMH 550g 570g 575g Receiver Measurements as per ETS 300 086 Intermediate frequencies 21 4MHz and 455kHz Sensitivity 12dB SINAD 119dBm Sensitivity 20dB SINAD 114dBm Fixed Squelch Sensitivity 12dB SINAD or 16dB SINAD Nominal Selectivity 70dB NB 75dB WB Spurious Response 70dB Intermodulation 65dB Blocking 94dB Ultimate Signal to Noise Ratio EIA 37dB NB 42dB WB A...

Страница 25: ...H 510g 530g 535g With TOPB500 2000mAh NiMH 550g 570g 575g Receiver Measurements as per ETS 300 086 Intermediate frequencies 21 4MHz and 455kHz Sensitivity 12dB SINAD 119dBm Sensitivity 20dB SINAD 114dBm Fixed Squelch Sensitivity 12dB SINAD or 16dB SINAD Nominal Selectivity 70dB NB 75dB WB Spurious Response 70dB Intermodulation 65dB Blocking 94dB Ultimate Signal to Noise Ratio EIA 37dB NB 42dB WB A...

Страница 26: ...With TOPB500 2000mAh NiMH 550g 570g 575g Receiver Measurements as per ETS 300 086 Intermediate frequencies 21 4MHz and 455kHz Sensitivity 12dB SINAD 119dBm Sensitivity 20dB SINAD 114dBm Fixed Squelch Sensitivity 12dB SINAD or 16dB SINAD Nominal Selectivity 66dB NB 72dB WB Spurious Response 70dB Intermodulation 65dB Blocking 94dB Ultimate Signal to Noise Ratio EIA 36dB NB 42dB WB Audio Response Wit...

Страница 27: ...10g 530g 535g With TOPB500 2000mAh NiMH 550g 570g 575g Receiver Measurements as per ETS 300 086 Intermediate Frequencies 45 1MHz and 455kHz Sensitivity 12dB SINAD 119dBm Sensitivity 20dB SINAD 114dBm Fixed Squelch Sensitivity 12dB SINAD or 16dB SINAD Nominal Selectivity 66dB NB 72dB WB Spurious Response 70dB Intermodulation 65dB Blocking 94dB Ultimate Signal to Noise Ratio EIA 34dB NB 40dB WB Audi...

Страница 28: ...H 510g 530g 535g With TOPB500 2000mAh NiMH 550g 570g 575g Receiver Measurements as per ETS 300 086 Intermediate frequencies 45 1MHz and 455kHz Sensitivity 12dB SINAD 119dBm Sensitivity 20dB SINAD 114dBm Fixed Squelch Sensitivity 12dB SINAD or 16dB SINAD Nominal Selectivity 66dB NB 72dB WB Spurious Response 70dB Intermodulation 65dB Blocking 94dB Ultimate Signal to Noise Ratio EIA 34dB NB 40dB WB A...

Страница 29: ...ith TOPB200 1500mAh NiCd 525g 545g 550g With TOPB700 1500mAh NiMH 510g 530g 535g With TOPB500 2000mAh NiMH 550g 570g 575g Receiver Measurements as per EIA Intermediate frequencies 45 1MHz and 455kHz Sensitivity 12dB SINAD 0 25µV 119dBm Sensitivity 20dB SINAD 0 40 µV 114dBm Fixed Squelch Sensitivity 12dB SINAD or 16dB SINAD Nominal Selectivity 60dB NB 65dB WB Spurious Response 65dB Intermodulation ...

Страница 30: ...th TOPB200 1500mAh NiCd 525g 545g 550g With TOPB700 1500mAh NiMH 510g 530g 535g With TOPB500 2000mAh NiMH 550g 570g 575g Receiver Measurements as per EIA Intermediate frequencies 45 1MHz and 455kHz Sensitivity 12dB SINAD 0 25µV 119dBm Sensitivity 20dB SINAD 0 40µV 114dBm Fixed Squelch Sensitivity 12dB SINAD or 16dB SINAD Nominal Selectivity 60dB NB 65dB WB Spurious Response 70dB Intermodulation 65...

Страница 31: ...04 01 IPN 449 51000 03 Radio specifications B 13 ...

Страница 32: ...Transmitter 1 1 7 D A B2 D D 9 3 3 1 21 1 03 1 3 1 1 1 03 2 1 2 7Power Level 9 Transmit Tx audio 4 3 1 2 M 6 7Maximum Deviation Modulation Balance 9 Receiver 03 3 1 2 1 1 2 7Front End Tuning 9 4 2 4 7 B 8 B 9 1 2 2 4 2 7 B9 21 4 2 73009 2 1 1 2 1 7Squelch Thresh olds 9 7RSSI Thresholds 9 3 48444 A B 1 1 7 4 92 1 3 4 444 8 B 1 ...

Страница 33: ... Rx audio 32 2 1 1 2 4 7 M 9 2 2 2 2 2 3 3 4 2 1 1 4 4 2 1 Synthesiser and VCO 1 2 1 2 1 1 4 4 4 4 70 9 1 7 9 2 2 M 7 921 7TCXO Calibration 9 Power supplies 5V DIG N 1 1 1 5V AN N 1 1 2 2 5V TX N M 1 4 1 7V5 BATT N 7V5 ACC N 1 1 7V5 SW N D 1 1 14V N 1 N D N ...

Страница 34: ...B 16 Circuit descriptions 04 01 IPN 449 51000 03 4V3 DEC N N 1 1 Accessory connector interface Implications of universal band versus wideband IF filtering 1 1 1 2 3 48444 3 4 444 1 1 1 1 1 3 2 1 1 1 1 ...

Страница 35: ...W 1 2 4 8 C C Q1 BC847W Q2 BC847W R1 470 R2 470 C1 100N C11 10N C2 47N R4 1K0 R3 1K0 C5 10N C6 10N C7 10N C8 10N C9 10N C10 10N C4 1N0 C3 100N LK1 LK2 Q5 BC857W Q4 BC857W R16 33 R14 4K7 R13 47K 47K 22K Q3 DTC144W 1 2 3 R12 47K R15 2K2 TP1 TP2 C15 1N0 C16 150P TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 TP11 TP12 TP13 TP14 SK3 SMA 90DEG SKT UP TACT DOWN TACT SWITCH 1P1W 1 2 R5 2K2 R6 10 R7 10 MIC MICORPHONE 1...

Страница 36: ...B 10 Radio specifications and circuit descriptions 04 01 IPN 449 51000 03 ...

Страница 37: ...7W R1 470 R2 470 C1 100N C11 10N C2 47N R4 1K0 R3 1K0 C5 10N C6 10N C7 10N C8 10N C9 10N C10 10N C4 1N0 C3 100N LK1 LK2 Q5 BC857W Q4 BC857W R16 33 R14 4K7 R13 47K 47K 22K Q3 DTC144W 1 2 3 R15 2K2 TP1 TP2 C15 1N0 C16 150P TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 TP11 TP12 TP13 TP14 SK3 SMA 90DEG SKT UP TACT DOWN TACT SWITCH 1P1W 1 2 R5 2K2 R6 10 R7 10 MIC MICORPHONE 1 V 2 GND GREEN D1 DUAL LED 1 2 RED D1 D...

Страница 38: ...B 12 Radio specifications and circuit descriptions 04 01 IPN 449 51000 03 ...

Страница 39: ...C P A R T Diagnostics and fault finding Contents 9 7 1 0 ...

Страница 40: ...C 2 04 01 IPN 449 51000 03 ...

Страница 41: ...449 51000 03 Test facilities C 3 Test facilities 1 1 1 5 3 6 D 2 1 5 5 A 5 5 5 1 5 2 O 7Shift 692 1 7 92 P7Shift 59 7 9 Q 8 1 1 2 Error codes 1 1 7 3 92 C01 C02 7 9 1 C03 7 9 2 2 2 C04 2 2 X01 3 1 1 1 2 X02 X03 4 ...

Страница 42: ...C 4 Test facilities 04 01 IPN 449 51000 03 X04 3 3 2 3 X05 3 1 3 1 3 1 X06 X09 4 1 1 1 4 1 1 1 1 1 1 X31 X32 X33 X35 1 1 1 X36 8 1 1 X37 6 1 1 1 X38 8 1 ...

Страница 43: ... to Rx 32 None Set radio to Tx 33 None Set transmit to low power 34 None Set transmit to mid power 135 None Set transmit to high power 35 None Set transmit to max power 36 None Set transmit to no power 137 None Activate economy mode 42 None Deactivate economy mode 43 None Read battery level 46 Returns 0 to 255 Read temperature level 47 Returns 0 to 255 Set keypad test on 50 None Set keypad test of...

Страница 44: ...transistor gate bias 111 0 to 255 Set TCXO mod 112 0 to 255 Set VCO mod 113 0 to 255 Set Tx power level 114 0 to 255 Set TCXO coarse frequency 115 0 to 255 Set TCXO fine frequency 116 0 to 255 Set Rx front end tuning 117 0 to 255 Set squelch threshold 118 0 to 255 Set CTCSS modulation 120 0 to 32767 Set DCS modulation 121 0 to 32767 Set FFSK modulation 122 0 to 32767 Set Selcall modulation 123 0 t...

Страница 45: ...uencies Note tttttt and rrrrrr may be up to 6 digits long Example 1 Calculating tttttt for an H band radio Example 2 Calculating rrrrrr for an H band radio Note IF depends on the radio s switching band For A B C and D bands radios the IF is 21 4 MHz For A band add the IF MHz in the formula radio uses high side injection For E F G H I J and K band radios the IF is 45 1 MHz transmit frequency MHz ch...

Страница 46: ...C 8 Fault finding charts 04 01 IPN 449 51000 03 Fault finding charts 5 1 6 6 6 6 6 4 2 ...

Страница 47: ...on for pins 1 to 4 OK NO Battery contacts OK Replace both battery contacts Radio cannot be switched on NO Is the battery charged YES Charge the battery Replace on off volume control switch YES Return to TEL Customer Service Department YES NO Check on off volume control switch Function for pins 1 to 4 OK NO Battery contacts OK Replace both battery contacts YES NO Check on off volume control switch ...

Страница 48: ... 0 1 0 5 0 1 0 0 9 1 0 0 0 PINS CHANNELS 1 S C to GND 0 O C to GND Bottom of PCB Antenna connector 16 way selector On off volume control 1 2 3 6 5 4 YES Return to Tait Electronics Ltd Customer Service Department Replace channel selector switch Using the truth table below is channel selector operation OK Cannot change channel NO 6 3 4 1 2 0 0 0 1 3 0 0 1 0 5 0 1 0 0 9 1 0 0 0 PINS CHANNELS 1 S C to...

Страница 49: ...rt on the PC flexible loom contacts clean etc Is the software using the correct serial port Change the COMM Port using Utility Defaults option NO YES Return to Tait Electronics Ltd Customer Service Department YES Is the PTT jammed on YES Make sure PTT is released Ensure loom is properly fitted into the socket on the PCB Is the flexible loom inserted correctly YES NO NO Is the Tx Rx switch on the c...

Страница 50: ...ce on off volume control switch NO Is receive sense 117 dBm YES NO Is squelch operating normally 16 dB city 12 dB country YES Recalibrate squelch NO NO Reprogram radio YES NO Is the radio programmed correctly NO Is the radio in lock command 72 YES NO Does on off volume pot vary between 180 ohms to 10K between pin 3 and GND and between pin 2 and GND YES Return to Tait Electronics Ltd Customer Servi...

Страница 51: ...tioning Check PTT switch YES NO Replace RF out assembly YES Check programming Are channels and frequency band information programmed correctly NO Is RF out assembly OK NO Reprogram radio YES NO Is the radio programmed correctly NO Is the radio in lock command 72 NO Return to Tait Electronics Ltd Customer Service Department Cannot transmit YES YES Is current greater than 1 5 A high power or 700 mA ...

Страница 52: ...e internal microphone working Ensure loom is properly fitted into the socket on the PCB Replace internal microphone NO NO Replace flexible loom NO NO Is the flexible loom inserted correctly YES YES Is the flexible loom damaged When an external accessory is plugged in is there microphone audio for the accessory YES Return to Tait Electronics Ltd Customer Service Department No transmit audio YES Is ...

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