Standard Horizon Quest GX1255S Service Manual Download | Manualshive

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18

REF

DESCRIPTION

VALUE

V/W

TOL.

MFR'S DESIG

VXSTD P/N

VERS.

LOT SIDE LAY ADR

MAIN Unit

Parts List

C 1104

CHIP CAP.

0.01uF

50V

B

GRM39B103M50PT

K22174823

1-

A

D4

C 1107

CHIP TA.CAP.

10uF

6.3V

TEMSVA0J106M-8R

K78080027

1-

B

b3

C 1109

CHIP CAP.

7pF

50V

CH

GRM39CH070D50PT

K22174208

1-

A

D3

C 1110

CHIP CAP.

0.001uF

50V

B

GRM39B102K50PT

K22174821

1-

A

D3

C 1113

CHIP TA.CAP.

0.47uF

25V

TESVA1E474M1-8R

K78140009

1-

B

b4

C 1115

CHIP CAP.

1pF

50V

CK

GRM39CK010C50PT

K22174202

1-

A

C4

C 1117

CHIP CAP.

0.001uF

50V

B

GRM39B102K50PT

K22174821

1-

A

C3

C 1119

CHIP CAP.

1pF

50V

CK

GRM39CK010C50PT

K22174202

1-

A

D3

C 1121

CHIP CAP.

0.001uF

50V

B

GRM39B102K50PT

K22174821

1-

B

b4

C 1123

CHIP CAP.

7pF

50V

CH

GRM39CH070D50PT

K22174208

1-

A

C5

C 1129

CHIP CAP.

1pF

50V

CK

GRM39CK010C50PT

K22174202

1-

A

C5

C 1132

CHIP CAP.

1uF

10V

F

GRM39F105Z10PT

K22105001

1-

A

C3

C 1133

CHIP CAP.

0.0056uF

50V

B

GRM39B562M50PT

K22174818

1-

A

B4

C 1134

CHIP CAP.

0.01uF

50V

B

GRM39B103M50PT

K22174823

1-

B

c5

C 1135

CHIP CAP.

330pF

50V

B

GRM39B331K50PT

K22174820

1-

A

B4

C 1136

CHIP CAP.

0.01uF

50V

B

GRM39B103M50PT

K22174823

1-

B

c4

C 1139

CHIP CAP.

0.1uF

25V

F

GRM39F104Z25PT

K22145001

1-

A

B4

C 1140

CHIP CAP.

0.01uF

50V

B

GRM39B103M50PT

K22174823

1-

B

c4

C 1141

CHIP CAP.

1uF

10V

F

GRM39F105Z10PT

K22105001

1-

A

B5

C 1142

CHIP CAP.

0.0068uF

50V

B

GRM39B682K50PT

K22174834

1-

A

B4

C 1143

CHIP CAP.

0.1uF

16V

B

GRM39B104K16PT

K22124805

1-

A

B5

C 1144

CHIP CAP.

0.1uF

16V

B

GRM39B104K16PT

K22124805

1-

A

B4

C 1145

CHIP CAP.

0.1uF

16V

B

GRM39B104K16PT

K22124805

1-

A

B5

C 1146

CHIP CAP.

0.01uF

50V

B

GRM39B103M50PT

K22174823

1-

B

c4

C 1147

CHIP CAP.

15pF

50V

CH

GRM39CH150J50PT

K22174215

1-

A

B4

C 1148

AL.ELECTRO.CAP.

10uF

16V

RC2-16V100M(4X7)

K40129012

1-

A

B4

C 1149

CHIP CAP.

0.01uF

50V

B

GRM39B103M50PT

K22174823

1-

A

C5

C 1151

CHIP CAP.

0.022uF

25V

B

GRM39B223K25PT

K22144807

1-

A

B5

C 1152

CHIP CAP.

1pF

50V

CK

GRM39CK010C50PT

K22174202

1-

A

C4

C 1153

CHIP CAP.

0.0047uF

50V

B

GRM39B472K50PT

K22174833

1-

A

B5

C 1154

CHIP CAP.

0.1uF

16V

B

GRM39B104K16PT

K22124805

1-

A

C4

C 1156

CHIP CAP.

0.01uF

50V

B

GRM39B103M50PT

K22174823

1-

A

B4

C 1157

CHIP CAP.

0.1uF

25V

F

GRM39F104Z25PT

K22145001

1-

A

A4

C 1158

CHIP CAP.

0.1uF

16V

B

GRM39B104K16PT

K22124805

1-

A

A3

C 1159

CHIP CAP.

0.1uF

16V

B

GRM39B104K16PT

K22124805

1-

A

B4

C 1160

CHIP CAP.

820pF

50V

B

GRM39B821M50PT

K22174808

1-

A

B5

C 1162

CHIP CAP.

1uF

10V

F

GRM39F105Z10PT

K22105001

1-

A

A5

C 1163

CHIP CAP.

82pF

50V

CH

GRM39CH820J50PT

K22174233

1-

B

c5

C 1164

CHIP CAP.

0.1uF

16V

B

GRM39B104K16PT

K22124805

1-

B

c4

C 1165

CHIP CAP.

1uF

10V

F

GRM39F105Z10PT

K22105001

1-

A

A3

C 1166

CHIP CAP.

470pF

50V

B

ECUV1H471KBV

K22179610

1-

B

c5

C 1167

CHIP CAP.

470pF

50V

B

ECUV1H471KBV

K22179610

1-

B

c5

C 1168

CHIP CAP.

0.01uF

50V

B

GRM39B103M50PT

K22174823

1-

A

B5

C 1170

CHIP CAP.

0.0047uF

50V

B

GRM39B472K50PT

K22174833

1-

B

d5

C 1171

CHIP CAP.

0.1uF

16V

B

GRM39B104K16PT

K22124805

1-

A

A3

C 1172

CHIP CAP.

0.1uF

16V

B

GRM39B104K16PT

K22124805

1-

A

B3

C 1173

CHIP CAP.

0.1uF

16V

B

GRM39B104K16PT

K22124805

1-

B

d4

C 1175

CHIP CAP.

1uF

10V

F

GRM39F105Z10PT

K22105001

1-

A

A4

C 1177

CHIP TA.CAP.

10uF

10V

TEMSVA1A106M-8R

K78100028

1-

B

d4

C 1178

CHIP CAP.

15pF

50V

CH

GRM39CH150J50PT

K22174215

1-

A

A4

C 1179

AL.ELECTRO.CAP.

100uF

25V

RE2-25V101M 100UF

K40149028

1-

A

A1

C 1180

CHIP CAP.

0.001uF

50V

B

GRM39B102K50PT

K22174821

1-

B

e1

C 1182

FILM CAP.

0.027uF

16V

ECHU1C273JB5

K57120012

1-

B

e4

C 1183

CHIP CAP.

0.1uF

16V

B

GRM39B104K16PT

K22124805

1-

A

A4

C 1185

CHIP CAP.

0.001uF

50V

B

GRM39B102K50PT

K22174821

1-

A

A4

C 1186

AL.ELECTRO.CAP.

470uF

16V

RE3-16V471M 470UF

K40129066

1-

A

A2

C 1187

CHIP TA.CAP.

10uF

10V

TEMSVA1A106M-8R

K78100028

1-

A

A4

C 1188

CHIP CAP.

0.0047uF

50V

B

GRM39B472K50PT

K22174833

1-

A

A4

C 1190

CHIP CAP.

0.1uF

16V

B

GRM39B104K16PT

K22124805

1-

B

d4

C 1193

CHIP CAP.

15pF

50V

CH

GRM39CH150J50PT

K22174215

1-

A

A3

C 1194

CHIP CAP.

0.1uF

16V

B

GRM39B104K16PT

K22124805

1-

A

A4

C 1196

CHIP CAP.

0.001uF

50V

B

GRM39B102K50PT

K22174821

1-

A

A3

C 1197

CHIP CAP.

0.0068uF

50V

B

GRM39B682K50PT

K22174834

1-

B

e4

C 1200

CHIP CAP.

0.0022uF

50V

B

GRM39B222K50PT

K22174822

1-

B

e5

C 1205

CHIP CAP.

15pF

50V

CH

GRM39CH150J50PT

K22174215

1-

A

E4

C 1206

CHIP CAP.

0.1uF

16V

B

GRM39B104K16PT

K22124805

1-

B

a3

C 1207

CHIP CAP.

4pF

50V

CH

GRM39CH040C50PT

K22174205

1-

B

a2

C 1208

CHIP CAP.

3pF

50V

CJ

GRM39CJ030C50PT

K22174204

1-

B

a2

C 1209

CHIP CAP.

0.1uF

25V

F

GRM39F104Z25PT

K22145001

1-

A

B4

C 1210

CHIP TA.CAP.

10uF

10V

TEMSVA1A106M-8R

K78100028

1-

A

C3

C 1211

CHIP CAP.

0.001uF

50V

B

GRM39B102K50PT

K22174821

1-

B

e2

C 1212

CHIP CAP.

0.001uF

50V

B

GRM39B102K50PT

K22174821

1-

B

e2

C 1213

CHIP CAP.

0.001uF

50V

B

GRM39B102K50PT

K22174821

1-

A

A2

C 1214

CHIP CAP.

0.001uF

50V

B

GRM39B102K50PT

K22174821

1-

A

A3

C 1215

CHIP CAP.

5pF

50V

CH

GRM39CH050C50PT

K22174206

1-

B

a4

C 1216

CHIP CAP.

5pF

50V

CH

GRM39CH050C50PT

K22174206

1-

B

a4

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Summary of Contents for Quest GX1255S

Page 1: ...1 SERVICE MANUAL 25 Watt VHF FM Marine Transceiver QUEST GX1255S EM001N90A ...

Page 2: ...000 Hz Audio Distortion 5 Modulation 16K0G3E for DSC 16K0G2B Frequency Stability 0 0005 20 C to 50 C FM Hum and Noise 50 dB RECEIVER Frequency Range 156 050 to 163 275 MHz Sensitivity 20 dB Quieting 0 35 µV 12 dB SINAD 0 25 µV Squelch Sensitivity Threshold 0 13 µV Modulation Acceptance Bandwidth 7 5 kHz Selectivity Spurious and Image Rejection 70 dB Intermodulation and Rejection at 12 dB SINAD 70 ...

Page 3: ...TE RA0422800 CHASSIS RA0423000 HOLDER PLATE PWR RA0422900 O RING M CONECT RA0423100 O RING BOTTOM RA0421500 x 2pcs O RING SCREW RA0422700 RUBBER PACKING FRONT RA0458700 BLACK SLEEVE ASSY BK RA0422500 WHITE SLEEVE ASSY RA0292100 SHEET MICROTEX C010 T9207012A WIRE ASSY AM001N P1091158 MR S AM001N RA041830A SHIELD CASE COVER F G1093695 RA35H1516M REF VXSTD P N Description Qty U00306002 PAN HEAD SCREW...

Page 4: ...4 Note ...

Page 5: ...5 Block Diagram ...

Page 6: ...6 Connection Diagram ...

Page 7: ...r Q1031 TDA2003 the audio signal is passed to the exter nal Speaker terminal in the accessory cable and 16 Ohm internal loudspeaker PLL Synthesizer The 1st LO maintains stability from the PLL synthesizer by using a 21 850 MHz reference signal from crystalX1001 PLL synthesizer IC Q1017 LV2105V consists of a pres caler reference counter swallow counter programmable counter a serial data input port t...

Page 8: ...h the low pass filter Q1028 on the RF Unit to the VCO Decoder The receiving DCS code is demodulated by the FM IC Q1024 then fed through the low pass filter Q1026 2SC4154E to the DCS Decoder IC Q1032 NJM2211M which the receiving DCS code is decoded The decoded DCS signal delivered to the 8 bit MPU IC Q2003 1050 Hz Weather Alert Decoder 1050Hz Weather Alert signals are demodulated on the CNTL Unit a...

Page 9: ...test equipment and thorough familiarity with its correct use is necessary for complete realignment Correction of problems caused by misalignment result ing from use of improper test equipment is not covered under the warranty policy While most steps do not re quire all of the equipment listed the interactions of some adjustments may require that more complex adjustments be performed afterwards Do ...

Page 10: ...ePWR VOL switch while press and holding the DIST and DW keys Confirmation of VCO Confirmation r Connect the DC voltmeter to the test point TP1019 r Use the p UP q DOWN key to set the channel to EXP04 confirm that voltage on the test point is over 1 0 V in the receive and transmit mode r Use the p UP q DOWN key to set the channel to EXP05 confirm that voltage on the test point is below 5 0 V in the...

Page 11: ...T1004 and T1005 until the wave form shown in below is obtained GX1255S FRONT END ATTEN 20dB RL 10 0dBm 10dB CENTER 159 00 MHz RBW 30 kHz VBW 30 kHz SPAN 20 00 MHz SWP 56 0 ms r Set the channel to CH16 With the PTT switch pressed adjust TC1001 so that RF frequency is 156 80000 MHz 50 Hz Adjustment and Confirmation of Deviation Adjust deviation in the transmit mode Adjustment r Setup the test equipm...

Page 12: ...on r Setup the test equipment as shown below Confirmation of DSC Operation Confirmation r Prepare the confirmation transceiver GX1260S r Input below data to the confirmation transceiver in advance Input TEST to NAME of INDIVIDUAL DI RECTORY Input 123456789 to MMSI of INDIVIDUAL DIRECTORY Input 123456780 to local MMSI Channel 13 in U S A mode r Setup the test transceiver as follows Channel 21 in U ...

Page 13: ... V RX 0 V TX 0 V RX 8 0 V TX 0 V RX 5 0 V TX HI 0 V TX LOW 5 0 V RX 5 0 V 4 8 V RX 10 0 dBµ 21 4 MHz RX 7 0 dBµ 21 4 MHz RX 1 2 V RX 0 5 V RX 4 7 V RX 6 0 dBµ 21 4 MHz RX 1 0 V RX 7 9 V RX 5 5 V RX 5 5 V RX 5 2 V RX 1 0 V RX 5 5 V RX 0 7 V RX 5 1 V RX 4 3 V RX 5 4 V RX 2 9 V RX 2 3 V RX 5 2 V RX 2 6 V SQL ON 4 8 V SQL OFF 0 V DSC DATA H 4 8 V DSC DATA L 0 V AF MUTE ON 0 V AF MUTE OFF 5 0 V 3 6 V 1...

Page 14: ...14 MAIN Unit Note MAIN Unit ...

Page 15: ...24 NJM12902V Q1028 NJM2904V Q1034 NJM78M05 Q1003 TC4S66F Q1037 1030 2SA1602A MF Q1007 2SC3357 MF Q1011 RT1N241M N2 Q1029 1033 RT1N441U M3 Q1005 1009 1010 1023 1035 2SC4154 LE Q1025 1026 2SC5006 24 Q1019 DTB123EK F52 Q1006 2SK210GR YG Q1020 1SS302 C3 D1005 NJM7808FA Q1002 LA4425A Q1031 3SK320 U7 Q1018 ...

Page 16: ...MAIN Unit Parts Layout 1 3 5 4 2 b d f a c e Side B NJM2212M Q1032 2SA1162GR SG Q1036 2SC2712GR LG Q1037 2SC4154 LE Q1015 2SC4400 RT4 Q1022 2SC5006 24 Q1014 1SS321 F9 D1002 DAN235U M D1006 HZM5 6MB2 Q1032 ...

Page 17: ...028 1 A B2 C 1046 CHIP CAP 5pF 50V CH GRM39CH050C50PT K22174206 1 B a3 C 1047 CHIP CAP 22pF 50V CH GRM39CH220J50PT K22174219 1 B a4 C 1048 CHIP CAP 18pF 50V CH GRM39CH180J50PT K22174217 1 B a4 C 1049 CHIP CAP 15pF 50V CH GRM39CH150J50PT K22174215 1 A B3 C 1050 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B a4 C 1051 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B a4 C 1054 CHIP CAP 0 001u...

Page 18: ...B821M50PT K22174808 1 A B5 C 1162 CHIP CAP 1uF 10V F GRM39F105Z10PT K22105001 1 A A5 C 1163 CHIP CAP 82pF 50V CH GRM39CH820J50PT K22174233 1 B c5 C 1164 CHIP CAP 0 1uF 16V B GRM39B104K16PT K22124805 1 B c4 C 1165 CHIP CAP 1uF 10V F GRM39F105Z10PT K22105001 1 A A3 C 1166 CHIP CAP 470pF 50V B ECUV1H471KBV K22179610 1 B c5 C 1167 CHIP CAP 470pF 50V B ECUV1H471KBV K22179610 1 B c5 C 1168 CHIP CAP 0 01...

Page 19: ...TRF G2070118 1 A D3 D 1015 DIODE 1SS355 TE 17 G2070470 1 J 1001 CONNECTOR 28FLT SM1 TB P1091149 1 A B4 J 1002 CONNECTOR B7B PH K S P0090401 1 A A3 J 1003 CONNECTOR B2B PH K S P0090396 1 A A4 L 1001 M RFC 4 7uH LAL03NA4R7K L1190203 1 A D2 L 1002 COIL A1 4 5T3 5D0 8UEW R L0021149A 1 A E1 L 1003 COIL A1 4 5T3 5D0 8UEW R L0021149A 1 A D2 L 1004 COIL A1 4 5T3 5D0 8UEW R L0021149A 1 A E1 L 1005 COIL A1 ...

Page 20: ...HIP RES 100 1 16W 5 RMC1 16 101JATP J24185101 1 B a4 R 1033 CHIP RES 560 1 16W 5 RMC1 16 561JATP J24185561 1 B a4 R 1034 CHIP RES 470 1 16W 5 RMC1 16 471JATP J24185471 1 B b2 R 1035 CHIP RES 47 1 16W 5 RMC1 16 470JATP J24185470 1 A C3 R 1037 CHIP RES 0 1 16W 5 RMC1 16 000JATP J24185000 1 A D3 R 1038 CHIP RES 47 1 16W 5 RMC1 16 470JATP J24185470 1 A C4 R 1039 CHIP RES 100k 1 16W 5 RMC1 16 104JATP J...

Page 21: ... 100k 1 16W 5 RMC1 16 104JATP J24185104 1 A A4 R 1119 CHIP RES 330k 1 16W 5 RMC1 16 334JATP J24185334 1 A A4 R 1120 CHIP RES 0 1W 5 RMC1 JPATE J24305000 1 B e3 R 1121 CHIP RES 0 1 16W 5 RMC1 16 000JATP J24185000 1 B d5 R 1122 CHIP RES 100k 1 16W 5 RMC1 16 104JATP J24185104 1 B d5 R 1123 CHIP RES 100 1 16W 5 RMC1 16 101JATP J24185101 1 B d4 R 1124 CHIP RES 100k 1 16W 5 RMC1 16 104JATP J24185104 1 A...

Page 22: ...L MC120 E526HNSA 110461 L0190261 1 A D5 TC1001 TRIMMER CAP 20pF ECR KN020E61X K91000213 1 A C4 TP1013 CHECK TERMINAL RCT00000C Q5000103 1 A D4 VR1001 POT 22k EVN 5ESX50BE4 J51811223 1 A C2 VR1002 POT 1k EVN 5ESX50B13 J51811102 1 A C2 VR1003 POT 100k EVN 5ESX50B15 J51811104 1 A C3 X 1001 XTAL TOP B 21 85MHz 21 85000MHZ H0103270 1 A C4 XF1001 XTAL FILTER 21S13B H1102353 1 A C5 SHIELD CASE VCO RA0418...

Page 23: ... V 13 8V LCD Contrast 3 8 5 0 V Dimmer Control 0 6 1 V Dimmer Control 0 4 8 V PTT ON 0 V PTT OFF 5 0 V H 5 0 V L 0 V 5 V REG RESET 90 msec Key Beep 500 mVp p Weather Alert 2 5 Vp p Distress Alert 5 0 Vp p MAX 5 0 Vp p 3 0 Vp p 4 0 Vp p ...

Page 24: ...24 CNTL Unit Note ...

Page 25: ...25 CNTL Unit Parts Layout B D F A C E 1 3 2 Side A DS2001 SEGMENT DS2001 COMMON ...

Page 26: ...26 CNTL Unit Parts Layout b d f a c e 1 3 2 Side B BR24C62F Q2007 2SC4154 LE Q2002 2008 PST597CNR 7C Q2005 RT1N241M N2 Q2003 MC2850 A7 D2008 M37560EFGP Q2004 CPH6102 Q2009 ...

Page 27: ...TOR B3B PH SM3 TB P0091336 1 B b3 JP2001 WIRE ASSY BLK 75 3 B4 T9318192 1 Q 2001 PHOTO COUPLER TLP281 GB TP G0090037 1 B d3 Q 2002 TRANSISTOR 2SC4154 T11 1E G3341548E 1 B d3 Q 2003 TRANSISTOR RT1N241M T11 1 G3070249 1 B d3 Q 2004 IC M37560EFGP R0677 G1093755 1 B c2 Q 2005 IC PST597CNR G1092589 1 B d2 Q 2007 IC BR24C32F E2 G1093517 1 B d2 Q 2008 TRANSISTOR 2SC4154 T11 1E G3341548E 1 B a2 Q 2009 TRA...

Page 28: ...R 2054 CHIP RES 10k 1 16W 5 RMC1 16 103JATP J24185103 1 B b2 R 2055 CHIP RES 2 2k 1 16W 5 RMC1 16 222JATP J24185222 1 B a2 R 2056 CHIP RES 6 8k 1 16W 5 RMC1 16 682JATP J24185682 1 B a2 R 2057 CHIP RES 15k 1 16W 5 RMC1 16 153JATP J24185153 1 B b3 R 2058 CHIP RES 470 1 16W 5 RMC1 16 471JATP J24185471 1 B a2 R 2059 CHIP RES 220 1 16W 5 RMC1 16 221JATP J24185221 1 B a2 R 2060 CHIP RES 470 1 16W 5 RMC1...

Page 29: ...CRIPTION VALUE V W TOL MFR S DESIG VXSTD P N VERS LOT SIDE LAY ADR Side B PCB with Components CB2157001 Printed Circuit Board AM001N000 FR0085200 1 J 3001 WIRE ASSY AM001N T9207014 1 A VR3001 POT RK0971111 20KA SW J60800262 1 A VR3002 POT RK0971110 20KB J60800261 1 A ...

Page 30: ...IODE RD4 7EB2 G2090158 1 A MC4001 MIC ELEMENT EM 100PT M3290029 1 A R 4001 CARBON FILM RES 6 8k 1 6W 5 RD16PJ682 6 8K J01225682 1 A R 4002 CARBON FILM RES 15k 1 6W 5 RD16PJ153 15K J01225153 1 A R 4003 CARBON FILM RES 15k 1 6W 5 RD16PJ153 15K J01225153 1 A S 4001 TACT SWITCH SKHHLN N5090036 1 A S 4002 TACT SWITCH SKHHLN N5090036 1 A S 4003 TACT SWITCH SKHHLN N5090036 1 A S 4004 TACT SWITCH SKHHLN N...

Page 31: ...13 ...

Page 32: ...TANDARD US Headquarters 17210 Edwards Rd Cerritos CA 90703 U S A 2000 VERTEX STANDARD CO LTD All rights reserved No portion of this manual may be reproduced without the permission of VERTEX STANDARD CO LTD Printed in Japan 0012K 0Y ...

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