TS-990S_serv.pdf

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1、SERVICE MANUAL This product uses Lead Free solder.This product complies with the RoHS directive for the European market. 2013-4 PRINTED IN JA PAN RQ004 (Y) 185 (B53-7036-00) HF/50MHz TRANSCEIVER TS-990S REV Phone jack (9P) (E11-0705-15)x2 Panel (A62-1194-11) LCD assy (B38-0943-05) Button knob (K29-9

2、574-12)x7 LCD assy (B38-0944-05) Button Knob (K29-9515-02) Knob (Main knob) (K21-1109-13) Knob (Sub knob) (K21-1111-13) Foot (Front) (J02-1310-02)x2 Knob (Outside) (K29-9596-03)x5 Knob (Intside) (k29-9390-03)x5 RF coaxial receptacle (Round) (E06-0858-25) Knob (Intside) (K29-9390-03)x4 Knob (Outside)

3、 (K29-9596-03)x4 Knob (K29-9579-02)x2 Knob (Intside) (K29-9580-03)x2 Knob (Outside) (K29-9581-13)x2 Knob (Intside) (K29-9577-03) Knob (Outside) (K29-9578-13) Rectangular receptacle (E58-0549-05)x2 Badge (B43-0336-04) Badge (B43-1667-03) Button Knob (K29-9514-02) Front glass (B10-0611-03) Button knob

4、(ILLUMI) (K29-9576-02)x13 Button knob (K29-9575-02)x25 Button knob (K29-9517-02) Button knob (K29-9516-02) Button knob (K29-9570-02) Button knob (K29-9571-02) Button knob (F3) (K29-9520-12) Button knob (F2) (K29-9519-12) Button knob (F1) (K29-9518-12) Button knob (F4) (K29-9521-12) Button knob (ESC)

5、 (K29-9572-02) Button knob (VOX) (K29-9525-02) Button knob (F5) (K29-9522-12) Button knob (F6) (K29-9523-12) Button knob (FBK) (K29-9527-02) Button knob (PROC) (K29-9526-02) Button knob (F7) (K29-9524-12) Button knob (SCOPE) (K29-9573-02) Button knob (MONI) (K29-9528-02) RF coaxial receptacle (M) (E

6、04-0167-15)x4 RF coaxial receptacle (BNC) (E04-0454-15) Sub socket(D) (E58-0529-05) Lead wire with connector (EXT.AT) (E37-1634-05) 3.5D phone jack (3P) (E11-0455-05) 3.5D phone jack (3P) (E11-0455-05) 3.5D phone jack (3P) (E11-0414-15) Foot (Rear) (J02-1312-03)x2 Rectangular receptacle (E58-0537-05

7、) DIN socket (E06-0752-15) DIN socket (E56-0408-15) Phone jack (9P) (E11-0705-15) Pin jack (E13-0166-25)x2 3.5D phone jack (3P) (E11-0455-05) Pin jack (E13-0166-25) Optic receiving module (W02-3779-05) Modular jack (E58-0544-05) Rectangular receptacle (E58-0548-05) Electronic circuit module (W02-376

8、5-05) Oscillating module (W02-3778-05) EXTERNAL SPEAKER SP-990 TEXT EDITION TS-990S 2 Document Copyrights Copyright 2013 by JVC KENWOOD Corporation. All rights reserved. No part of this manual may be reproduced, translated, distributed, or transmitted in any form or by any means, electronic, mechani

9、cal, photocopying, recording, or other- wise, for any purpose without the prior written permission of JVC KENWOOD Corporation. Disclaimer While every precaution has been taken in the preparation of this manual, JVC KENWOOD Corporation assumes no responsibility for errors or omissions. Neither is any

10、 liability assumed for damages resulting from the use of the informa- tion contained herein. JVC KENWOOD Corporation reserves the right to make changes to any products herein at any time for improvement purposes. Safety Check after Repairs Perform the insulation resistance test for the security of t

11、he product, after repairs. Point to be checked Check that the power supply plug does not have poor contacts and that there is no garbage or conductive materi- als stuck between the terminals. If the power supply cord is damaged, do not repair it using tape; replace it with the specifi ed part. Safet

12、y study After repairs have been completed, remove the power supply cord from the outlet, the antenna, the outside con- nection cable, etc., and insert the power switch. Using a 500V DC insulation resistance meter, check the insulation between each terminal of the attachment plug and the an- tenna te

13、rminal and other outside metal parts, and ensure that the insulation resistance levels are more than 4M. When the insulation resistance level is lower than this value, check repair of the transceiver is required. CONTENTS DISASSEMBLY FOR REPAIR . 3 CIRCUIT DESCRIPTION . 4 COMPONENTS DESCRIPTION . 40

14、 SEMICONDUCTOR DATA . 60 PARTS LIST . 75 EXPLODED VIEW . 150 PACKING . 157 TROUBLE SHOOTING . 158 ADJUSTMENT . 160 TERMINAL FUNCTION . 210 LEVEL DIAGRAM . 238 OPTIONAL ACCESSORIES ARCP-990 (Radio Control Program) . 240 ARHP-990 (Radio Host Program) . 240 SP-990 (External Speaker) . 240 SPECIFICATION

15、S . 242 TS-990S 3 DISASSEMBLY FOR REPAIR Cautions for reassembling the main knob ASSY Rotate the dial portion of the main knob ASSY clockwise to its maximum position (torque OFF), then attach the main knob ASSY to the panel. Dial portion of the main knob ASSY Main knob ASSY Forming the two coaxial c

16、ables (E37-1570-05, E37-1571-15) Forming the two coaxial cables (E37-1570-05, E37-1571- 15) as shown in the fi gure. Push the coaxial cable to the shielding plate side. Forming so that the coaxial cable (E37-1570-05) passes above the coaxial cable (E37-1571-15). Coaxial cable (E37-1570-05) Coaxial c

17、able (E37-1571-15) Preselector unit (X42-343 B/2) Shielding plate TS-990S 4 CIRCUIT DESCRIPTION 1. Main Receiver Block 1-1. Frequency Confi guration While receiving with the main receiver, the 1st IF oper- ates in 8.248MHz double conversion. In modes other than FM, 24kHz is used as the 2nd IF freque

18、ncy. The 2nd IF is A/ D converted and is applied to the DSP. In FM mode, the 1st IF signal (8.248MHz) is discriminated to an audio signal by the FM IC. It is then A/D converted and applied to the DSP. 1st IF 8.248MHz 24kHz FM IC 455kHz 2nd IF AF Divide PLL ADF4111 DDS AD9951 PLL ADF4111 DDS AD9835 x

19、2 VCO VCO VCXO 20MHz PLL ADF4001 DDS AD9835 TCXO 19.2MHz To Scope unit ADC/DAC DSP AF OUT ANT FM except FM RX MIXRX MIX 1-2. Reference Signal Generator With Internal Reference Oscillation Signal Se- lected The TCXO (X1) generates a 19.2MHz reference frequen- cy for controlling the local oscillator f

20、requency. The 19.2MHz signal is applied to the DDS (IC13) via the amplifi er (Q10), and approximately 8.4MHz is generated. A signal at approxi- mately 8.4MHz generated by the DDS (IC13) is applied to the PLL (IC18) via the ceramic fi lter (CF1). The frequency of the PLL (IC18) input is divided insid

21、e the PLL (IC18) and is used as a comparison frequency (f). The VCXO (X2) is a Voltage-Controlled Crystal Oscillator which generates 20MHz. The signal output from the VCXO (X2) is applied to D49 via a buffer (Q78), amplifi er (Q79) and LPF, and is frequency-doubled by D49 to generate 40MHz. The 40MH

22、z signal passes through the amplifi er (Q82) and LPF, and is applied to the PLL (IC18) with the frequency of the signal divided by N in the PLL (IC18). The signal with its frequency divided by N and the f are compared by the phase comparator inside the PLL and the 40MHz is phase- locked. The phase-l

23、ocked 40MHz is used as a reference sig- nal for each local oscillator block. Fig. 1 Frequency confi guration of the main receiver block With External Reference Oscillation Signal Se- lected The external 10MHz reference signal supplied from CN222 on the DC-DC unit (X43-322 A/3) to CN33 on the PLL (MA

24、IN LO) unit (X50-322), is applied to the PLL (IC18) via the buffer (Q5) and AGC amplifi er (Q11). When the ex- ternal reference is selected, the external 10MHz is used as a reference signal for the PLL (IC18). External Output of 10MHz Reference Signal The 40MHz which is generated for each local osci

25、llator is applied to the frequency dividers (IC24 and IC25) via the amplifier (Q81) and LPF, and is frequency-divided by 4 to generate 10MHz. The obtained 10MHz reference signal is supplied to CN222 on the DC-DC unit via the amplifi er (Q51), and is sent from CN220 to the external terminal (REF I/O

26、(10MHz). Frequency Adjustment Frequency adjustment is made by fi ne-tuning the approxi- mately 8.4MHz generated from the DDS (IC13). TS-990S 5 CIRCUIT DESCRIPTION 1-3. MLO1/MLO2 MLO1 (1st Local Oscillator for Main Receiver) The VCO (Q4) oscillates at 393.6MHz. It is applied to pin 5 of the PLL (IC2)

27、 via the BPF. The 40MHz reference signal is applied to pin 8. The signal which is applied to pin 5 of the PLL (IC2) is frequency-divided by N and the reference signal which is applied to pin 8 is frequency-divided by R. They are phase-compared to lock the phase, and the phase-locked 393.6MHz signal

28、is used as the reference of the DDS (IC3). The output signal from the DDS (IC3) is amplifi ed by the wide-band amplifi er (IC9). When using the DDS (IC3) output directly as the MLO1, it is sent via the BPF, buffer (IC23), amplifi er (Q99) and BPF. When using the VCO as the MLO1, a signal which is am

29、plifi ed by the wide-band amplifi er (IC9) is applied to pin 8 of the PLL (IC17) via the BPF. There are four VCOs (Q25, Q26, Q38 and Q39) for the MLO1. They oscillate at 82.78 to 138.992MHz. These oscil- lation outputs from the VCOs is applied to pin 5 of the PLL (IC17). The signal which is applied

30、to pin 5 is frequency- divided by N and the signal which is applied to pin 8 is frequency-divided by R. They are phase-compared to lock the oscillating frequency, and used as a VCO output. The oscillation output from the VCO is applied to the frequency dividers (IC19, IC20, IC21 and IC22) via the am

31、plifi er (Q45) where the frequency is divided by 4, 8, or 10. The frequency divided signal is passed through the amplifier (Q99) and BPF, and is sent as the MLO1. MLO2 (2nd Local Oscillator for Main Receiver) The DDS (IC26) generates the MLO2 which is used for the detector. The DDS (IC26) output sig

32、nal is sent from CN21 as the MLO2. Fig. 2 Reference signal generator of the main receiver block, MLO1/MLO2 19.2M X1Q10 AMP IC13 DDS Buffer CF1 Buffer Q5 AMP Q34 AMP Q11 AMP Q9 AMP IC14D13 ERDET CN33 10M D19,20 D23,25 D7 AMP Q46IC18 PLL X2 VCXO 20M Q27 AMP Q82 AMP Q51 IC24 1/2 D28 R10M Q3 AMP IC2 PLL

33、 393.6M Q4 AMP Q8 AMP Q1IC3 DDS IC9 AMP IC17 PLL 82.78 92.48MHz 96.48 107.48MHz 115.48 128.992MHz 127.48 138.992MHz Q25, Q26, Q38, Q39 AMP Q44 AMP Q35 AMP Q45 D12 D29D33 Buffer Q78 AMP Q79 D49 Doubler IC25 1/2 AMP Q81 AMP Q84 AMP Q85 AMP Q86 CN19 CN20 R40M SCREF AMP Q80IC26 DDS CN21 MLO2 IC19 1/2 IC

34、20 1/5 IC21 1/2 IC22 1/2 D39 D40 D38 D37 IC23 Buffer D41 AMP Q99 D43D51 D44D52 D45D53 D46D54 D47D55 D48D56 D42D50 CN22 MLO1 TS-990S 6 CIRCUIT DESCRIPTION IF=8.248MHz Frequency: 0.03 60MHz MAIN RX MLO1 DDS AD9951 (MDEN1) USBUSB-DATALSBLSB-DATACWCW-R RX 26.526.5 RXRX 26.526.5 RXRX 26.526.5 RXRX 26.526

35、.5 RXRX 26.526.5 RXRX 26.526.5 RX Mode offset 1+(MDSPFC) +(MDSPFC) +(MDSHIFT) +(MDSHIFT) -(MDSPFC)-(MDSPFC)-(MDSHIFT) -(MDSHIFT)+(CW SHIFT) +(CW SHIFT)-(CW SHIFT)-(CW SHIFT) MAIN RIT(MRIT)(MRIT)(MRIT)(MRIT)(MRIT)(MRIT)(MRIT)(MRIT)(MRIT)(MRIT)(MRIT)(MRIT) MAIN CAR IF8M_2.7k+(MCAR1)-(MCAR1)+(MCAR1)-(M

36、CAR1)+(MCAR1)-(MCAR1)+(MCAR1)-(MCAR1)+(MCAR1)-(MCAR1)+(MCAR1)-(MCAR1) IF8M_500+(MCAR2)-(MCAR2)+(MCAR2)-(MCAR2)+(MCAR2)-(MCAR2)+(MCAR2)-(MCAR2)+(MCAR2)-(MCAR2)+(MCAR2)-(MCAR2) IF8M_270+(MCAR3)-(MCAR3)+(MCAR3)-(MCAR3)+(MCAR3)-(MCAR3)+(MCAR3)-(MCAR3)+(MCAR3)-(MCAR3)+(MCAR3)-(MCAR3) MAIN RX MLO1 DDS AD9

37、951 (MDEN1) PKSPKS-RFSKFSK-RAMFM (FM-DATA) RX 26.526.5 RXRX 26.526.5 RXRX 26.526.5 RXRX 26.526.5 RXRX 26.526.5 RXRX 26.526.5 RX Mode offset 10000-(FSK SHIFT/2) -(FSK SHIFT/2) -(FSK SHIFT/2) -(FSK SHIFT/2)00 MAIN RIT(MRIT)(MRIT)(MRIT)(MRIT)(MRIT)(MRIT)(MRIT)(MRIT)(MRIT)(MRIT) MAIN CAR IF8M_2.7k+(MCAR

38、1)-(MCAR1)+(MCAR1)-(MCAR1)+(MCAR1)-(MCAR1)+(MCAR1)-(MCAR1) IF8M_500+(MCAR2)-(MCAR2)+(MCAR2)-(MCAR2)+(MCAR2)-(MCAR2)+(MCAR2)-(MCAR2) IF8M_270+(MCAR3)-(MCAR3)+(MCAR3)-(MCAR3)+(MCAR3)-(MCAR3)+(MCAR3)-(MCAR3) MLO2 DDS AD9951 (MDEN1) USBUSB-DATALSBLSB-DATACWCW-R RX 26.526.5 RXRX 26.526.5 RXRX 26.526.5 RX

39、RX 26.526.5 RXRX 26.526.5 RXRX 26.526.5 RX Mode offset 1+(MDSPFC)-(MDSPFC) +(MDSHIFT) -(MDSPFC)-(MDSPFC)+(MDSPFC) -(MDSHIFT) +(MDSPFC)+(CW SHIFT) -(CW SHIFT) -(CW SHIFT) +(CW SHIFT) MAIN CAR IF8M_2.7k+(MCAR1)+(MCAR1)+(MCAR1)+(MCAR1)+(MCAR1)+(MCAR1)+(MCAR1)+(MCAR1)+(MCAR1)+(MCAR1) IF8M_500+(MCAR2)+(M

40、CAR2)+(MCAR2)+(MCAR2)+(MCAR2)+(MCAR2)+(MCAR2)+(MCAR2)+(MCAR2)+(MCAR2) IF8M_270+(MCAR3)+(MCAR3)+(MCAR3)+(MCAR3)+(MCAR3)+(MCAR3)+(MCAR3)+(MCAR3)+(MCAR3)+(MCAR3) MLO2 DDS AD9951 (MDEN1) PKSPKS-RFSKFSK-RAMFM (FM-DATA) RX 26.526.5 RXRX 26.526.5 RXRX 26.526.5 RXRX 26.526.5 RXRX 26.526.5 RXRX 26.526.5 RX M

41、ode offset 1000000 MAIN CAR IF8M_2.7k+(MCAR1)+(MCAR1)+(MCAR1)+(MCAR1) IF8M_500+(MCAR2)+(MCAR2)+(MCAR2)+(MCAR2) IF8M_270+(MCAR3)+(MCAR3)+(MCAR3)+(MCAR3) ( MRIT): Main RIT frequency variable amount (9.99+9.99kHz) (FSK SHIFT): FSK shift width frequency (170Hz, 200Hz, 425Hz, 850Hz, and initial value: 17

42、0Hz) (CW SHIFT): CW shift amount CAR correction: SSB IF-Filter adjustment range (The range is set to zero when an additional roofi ng fi lter is used.) (MCAR1): Main, IF fi lter (2.7kHz) correction value (MCAR2): Main, IF fi lter (500Hz) correction value (MCAR3): Main, IF fi lter (270Hz) correction

43、value (MDSPFC): Varied with the DSP fi lter set value (MDSHIFT): DATA mode shift width frequency set value Table 1 MLO1/MLO2 frequency shift data 2. Transmission and Sub Receiver Blocks 2-1. Frequency Confi guration When transmitting in FM mode, it works in double conver- sion, and when transmitting

44、 in AM, SSB, CW, FSK or PSK mode, it works in triple conversion. While sub receiving, the 1st IF works in 73.095MHz triple conversion. In modes other than FM, the 3rd IF works in 24kHz, and the IF signal is converted by an A/D converter (ADC) and is applied to DSP. In FM mode, the audio signal is di

45、scriminated by the FM IC, and is converted into the digi- tal signal by an ADC and then is applied to the DSP. Under the following conditions, the 1st IF of the sub receiver block works in 11.374MHz double conversion. 1) Modes other than AM or FM 2) 1.8/ 3.5/ 7/ 14/ 21MHz amateur bands 3) DSP fi lte

46、rs bandwidth is 2.7kHz or lower TS-990S 7 Fig. 3 Frequency confi guration of the transmission and sub receiver blocks CIRCUIT DESCRIPTION AD9835 DDS ADF4001 PLLPLL ADF4001 FMOD R40M VCO 40MHz FM IC 455kHz 3rd IF AF ADC /DAC DSP AF OUT 1st IF 2nd IF 1st IF DDS AD9951 PLL ADF4111 VCO x2 x2 x2 TX MIX RX MIX RX MIX IFA IFB AD9835 DDS RX MIX TX MIX FM 24kHz 24kHz 10.695MHz 73.095MHz 11.374MHz SUB RX IFB (To Scope unit) SUB RX IFA/TX (To Scope unit) MIC IN except FM TX/RX MIX 15.6MHz ANT 2-2. Reference Signal Generator The frequency