Vertex Standard VXA-150 Service Manual

1© 2001 VERTEX STANDARD CO., LTD. Printed in Japan.Service ManualAir Band TransceiverContentsOperating Manual Reprint... 2Speci

10Block Diagram

11Circuit DescriptionReceive Signal PathIncoming RF from the antenna jack is passed througha low-pass filter and high-pass filter consisting of coilsL

12Circuit DescriptionTX/RX switch D1031 (MC2848), then amplified by Q1043(2SC3356) and Q1047 (2SK2973), then applied to thepower amplifier Q1052 which

13Circuit DescriptionPush-To-Talk Transmit Activation The PTT switch on the microphone is fed through thePTT controller, Q1002 (UMZ2N), to pin 41 of m

14Radio TesterIn-line Wattmeter50- RF LoadWAF Signal GeneratorAC VoltmeterREG. 7.2VDC P.S.Frequency CounterRF Sampling Coupler12347SPL8BEEPSKIPMWDWANL

15AlignmentAlignment PointPLL Reference Frequencyr Connect the wattmeter, dummy load and frequencycounter connected to the antenna jack, and tune thet

16Note

3.3 V(0.7 V)0 V(0 V)3.3 V(0 V)0.9 V(0.9 V)1.3 V(1.3 V)0 V(0 V)0 V(6.9 V)7.0 V(6.9 V)6.6 V(0 V)0 V(3.0 V)3.5 V(3.1 V)3.5 V(2.5 V)6.6 V(6.7 V)3.3 V(0 V)

MAIN UnitNote18

19MAIN UnitParts LayoutBA12SC4116GR (LG)(Q1016)2SC4215 (QY)(Q1050)2SC5226 (R22)(Q1051, 1057)2SK2974(Q1052)DTC124TU (05)(Q1019)DTA143EU (23)(Q1018)2SA1

2Operating Manual Reprint (Partial)CONTROLS & CONNECTORSAntenna JackThis SMA jack accepts the supplied flexible antenna,or another antenna designe

20MAIN UnitParts Layout2SC3356 (R24)(Q1043)2SC4116GR (LG)(Q1004, 1012, 1013,1045, 1048)2SC5226 (R22)(Q1023, 1029, 1036,1056, 1058)2SB1132 (BA)(Q1001,

21PCB with Components include HOLDER, LIGHT GUIDE, CS1763001 INTER CONNECTOR (LCD), TERMINAL PLATE R, BRACKET, INTER CONNECTOR (PCB)Printed Circuit B

22MAIN UnitDESCRIPTION VALUE V/W TOL. VXSTD P/NMFR’S DESIG VERS. LOT.REF. SIDELAY ADRParts ListC 1069 CHIP CAP. 180pF 25V CH TMK105CH181JW-F K22148244

23MAIN UnitDESCRIPTION VALUE V/W TOL. VXSTD P/NMFR’S DESIG VERS. LOT.REF. SIDELAY ADRParts ListC 1140 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829

24MAIN UnitDESCRIPTION VALUE V/W TOL. VXSTD P/NMFR’S DESIG VERS. LOT.REF. SIDELAY ADRParts ListC 1214 CHIP CAP. 0.01uF 16V B GRM36B103K16PT K22128804

25MAIN UnitDESCRIPTION VALUE V/W TOL. VXSTD P/NMFR’S DESIG VERS. LOT.REF. SIDELAY ADRParts ListD 1023 DIODE BAS316 G2070716 1 B d3D 1024 DIODE HZU4ALL

26MAIN UnitDESCRIPTION VALUE TOL. VXSTD P/NMFR’S DESIG VERS. LOT.REF. SIDELAY ADRParts ListQ 1015 IC AK93C85AM E-1 G1092706 1 B b2Q 1016 TRANSISTOR 2S

27MAIN UnitDESCRIPTION VALUE V/W TOL. VXSTD P/NMFR’S DESIG VERS. LOT.REF. SIDELAY ADRParts ListR 1024 CHIP RES. 470 1/16W 5% RMC1/16S 471JTH J24189021

28MAIN UnitDESCRIPTION VALUE V/W TOL. VXSTD P/NMFR’S DESIG VERS. LOT.REF. SIDELAY ADRParts ListR 1097 CHIP RES. 2.2k 1/16W 5% RMC1/16S 222JTH J2418902

29Parts ListMAIN UnitDESCRIPTION VALUE V/W TOL. VXSTD P/NMFR’S DESIG VERS. LOT.REF. SIDELAY ADRR 1167 CHIP RES. 0 1/16W 5% RMC1/16S JPTH J24189070 1 B

3Operating Manual Reprint (Partial)CONTROLS & CONNECTORSBattery Pack LatchOpen this latch for battery removal.PTT (PUSH TO TALK) SwitchPress this

30PCB with Components CB1861001Printed Circuit Board FR0078100 1C 2001 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1 BC 2002 CHIP CAP. 0.0022uF 5

31Parts LayoutSW UnitCircuit DiagramSide A Side BParts ListDESCRIPTION VALUE V/W TOL. VXSTD P/NMFR’S DESIG VERS. LOT.REF. SIDELAY ADRPCB with Componen

32E C 0 3 6 N 9 0 0Copyright © 2001VERTEX STANDARD CO., LTD.All rights reserved.No portion of this manualmay be reproducedwithout the permission ofVER

4Operating Manual Reprint (Partial)KEYPADLCD DISPLAYThis indicator con-firms that the AUTO-MATIC NOISE LIMITER isactivated.This icon is the “LowBatter

5Operating Manual Reprint (Partial)FIELD PROGRAMMING MODEThe VXA-150’s Book Memories also allow the user to store, label, and recall channel frequenci

6SpecificationsGeneralFrequency Range: TX: 118.000 - 136.975 MHz,RX: 108.000 - 136.975 MHz,Weather Channels (WX-01 - WX-10)Channel Spacing: 25 kHzEmis

7CE32 Programming SoftwareCE32 Programming Software InstructionsWith the CE32 programming Software you can quickly and easily program the features and

8Notes

9Exploded View & Miscellaneous PartsCAUTIONThe mic element must be desoldered andremoved from the PCB on order to rein-stall its protective rubber