Kenwood NX-840 Service Manual Download Page 33

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(No.RA011<Rev.001>) 2-3

2-3 (No.RA011<Rev.001>)

A-1C

Side

Y axis
X axis

ADDRESS TABLE OF BOARD PARTS

Each address may have an address error by one interval.

REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION

IC2 B-

IC3 B-

IC301 B-

IC500 A-

IC501 B-

IC502 A-

IC503 B-

IC701 A-

IC702 B-

IC703 B-

IC704 B-

IC705 B-

IC706 B-

IC709 B-

IC710 B-

IC713 A-

IC714 A-

IC715 B-

IC716 A-

IC717 A-

IC718 A-

IC720 B-

IC721 A-

IC722 A-

IC723 A-

IC724 A-

IC725 A-

IC726 B-

TRANSISTOR

Q2 B-

Q3 B-

Q4 B-

Q5 B-

Q6 B-

Q7 B-

Q9 B-

Q10 B-

Q11 B-

Q12 B-

Q300 B-

Q500 B-

Q501 B-

Q502 B-

Q503 B-

Q504 B-

Q505 B-

Q506 B-

Q700 B-

Q701 B-

Q702 B-

Q703 B-

Q704 B-

Q705 B-

Q706 A-

Q707 A-

Q708 A-

Q709 A-

Q710 A-

Q711 A-

Q712 A-

Q713 A-

Q714 A-

Q715 A-

Q716 A-

Q717 A-

Q718 A-

Q719 A-

Q720 A-

Q721 B-

Q722 B-

Q723 A-

DIODE

D5 B-

D6 B-

D7 B-

D8 B-

D9 B-

D10 B-

D11 B-

D12 B-

D13 B-

D14 B-

D15 B-

D16 B-

D17 B-

D300 B-

D301 B-

D304 B-

D305 B-

D306 B-

D307 B-

D308 B-

D309 B-

D310 B-

D500 B-

D501 B-

D502 B-

D503 B-

D504 B-

D505 B-

D700 A-

D701 A-

D702 A-

D704 A-

D705 A-

D706 A-

D707 A-

D708 A-

D709 A-

D710 A-

D711 A-

D712 B-

D713 B-

D714 B-

D715 B-

D717 A-

D718 A-

D720 A-

D721 A-

RESISTOR

R2 B-

R4 B-

R6 B-

R7 B-

R8 B-

R9 B-

R10 B-

R11 B-

R13 B-

R14 B-

R15 B-

R16 B-

R17 B-

R19 B-

R20 B-

R21 B-

R22 B-

R23 B-

R24 B-

R25 B-

R26 B-

R27 B-

R28 B-

R31 B-

R33 B-

R35 B-

R40 B-

R41 B-

R42 B-

R45 B-

R47 B-

R48 B-

R50 B-

R51 B-

R52 B-

R53 B-

R54 B-

R55 B-

R57 B-

R58 B-

R59 B-

R60 B-

R61 B-

R62 B-

R63 B-

R64 B-

R65 B-

R66 B-

R67 B-

R68 B-

R69 B-

R70 B-

R71 B-

R72 B-

R73 B-

R74 B-

R75 B-

R76 B-

R77 B-

R78 B-

R79 B-

R80 B-

R81 B-

R300 B-

R301 B-

R302 B-

R303 B-

R310 B-

R311 B-

R312 B-

R314 B-

R316 B-

R317 B-

R318 B-

R320 B-

R321 B-

R322 B-

R324 B-

R325 B-

R327 B-

R329 B-

R330 B-

R331 B-

R332 B-

R334 B-

R335 B-

R336 B-

R337 B-

R338 B-

R340 B-

R341 B-

R342 B-

R343 B-

R344 B-

R345 B-

R346 A-

R348 B-

R350 B-

R351 B-

R352 B-

R353 B-

R354 B-

R355 B-

R356 B-

R357 B-

R358 B-

R359 B-

R360 B-

R362 B-

R500 A-

R501 A-

R503 A-

R504 B-

R508 B-

R509 A-

R510 B-

R512 A-

R513 B-

R514 B-

R515 B-

R516 B-

R517 B-

R518 B-

R519 B-

R520 B-

R521 B-

R523 B-

R524 B-

R525 B-

R526 B-

R527 B-

R528 B-

R529 B-

R530 B-

R532 B-

R535 A-

R536 B-

R538 B-

R540 B-

R541 B-

R542 B-

R543 B-

R544 B-

R545 B-

R546 B-

R547 B-

R548 B-

R550 B-

R551 B-

R552 B-

R553 A-

R554 B-

R555 B-

R556 B-

R557 B-

R558 B-

R560 B-

R561 B-

R562 B-

R563 B-

R564 B-

R565 B-

R566 B-

R567 B-

R568 B-

R569 B-

R570 B-

R571 B-

R572 B-

R573 B-

R574 B-

R575 B-

R576 B-

R577 B-

R578 B-

R579 B-

R580 B-

R581 B-

R582 B-

R583 B-

R585 B-

R586 B-

R588 B-

R592 B-

R652 A-

R653 A-

R656 A-

R657 A-

R658 B-

R659 B-

R660 B-

R661 B-

R700 A-

R701 A-

R702 A-

R703 A-

R704 A-

R705 A-

R706 A-

R707 A-

R708 A-

R709 A-

R710 A-

R711 A-

R712 A-

R713 A-

R714 A-

R715 B-

R716 A-

R717 A-

R718 A-

R720 B-

R721 B-

R722 A-

R724 A-

R727 B-

R728 B-

R729 B-

R730 A-

R732 B-

R733 B-

R734 B-

R736 B-

R737 A-

R738 B-

R739 B-

R740 B-

R741 B-

R742 B-

R743 B-

R744 B-

R745 B-

R747 B-

R748 B-

R749 B-

R750 A-

R751 A-

R752 A-

R755 A-

R757 A-

R758 B-

R759 B-

R760 B-

R761 A-

R762 A-

R764 B-

R765 A-

R768 B-

R769 A-

R770 A-

R771 A-

R772 A-

R773 A-

R774 B-

R775 A-

R776 A-

R777 B-

R778 B-

R779 B-

R780 B-

R781 B-

R782 B-

R783 B-

R784 B-

R785 B-

R786 B-

R789 B-

R792 B-

R796 B-

R797 B-

R798 B-

R799 B-

R800 B-

R802 B-

R804 B-

R805 B-

R807 B-

R809 B-

R811 B-

R812 B-

R813 B-

R815 B-

R816 B-

R819 B-

R820 B-

R821 B-

R822 B-

R823 B-

R824 B-

R825 B-

R826 B-

R827 B-

R828 B-

R829 B-

R830 B-

R832 B-

R833 B-

R835 B-

R836 B-

R837 B-

R840 B-

R843 A-

R846 B-

R848 B-

R849 B-

R850 B-

R854 B-

R855 A-

R857 B-

R858 B-

R859 B-

R861 B-

R863 B-

R864 B-

R865 B-

R866 A-

R867 B-

R868 B-

R870 A-

R871 A-

R872 A-

R873 A-

R875 A-

R876 A-

R877 A-

R878 A-

R879 A-

R880 A-

R881 A-

R882 A-

R883 A-

R884 A-

R885 A-

R886 A-

R888 A-

R889 A-

R890 A-

R891 A-

R892 A-

R893 A-

R895 A-

R896 A-

R897 A-

R898 A-

R899 A-

R900 A-

R901 A-

R902 A-

R903 A-

R904 A-

R905 A-

R906 A-

R907 B-

R908 B-

R909 B-

R910 A-

R911 A-

R912 B-

R913 A-

R914 A-

R916 A-

R917 A-

R918 A-

R919 A-

R920 A-

R921 A-

R922 A-

R923 A-

R924 A-

R925 A-

R926 A-

R927 A-

R928 A-

R929 A-

R930 A-

R931 A-

R933 A-

R934 A-

R936 B-

R938 A-

R939 A-

R940 A-

R942 A-

R943 A-

R944 A-

R946 A-

R947 A-

R948 A-

R949 A-

R950 A-

R951 A-

R952 A-

R953 A-

R954 A-

R955 A-

R956 A-

R958 A-

R959 A-

R960 A-

R961 A-

R962 A-

R964 B-

R965 A-

R966 B-

R968 A-

R969 A-

R970 A-

R971 A-

R972 A-

R973 B-

R974 A-

R975 A-

R976 A-

R977 A-

R978 A-

R979 A-

R980 A-

R981 A-

R983 A-

R984 B-

R985 B-

R986 A-

R987 A-

R988 A-

R989 A-

R990 A-

R991 B-

R992 B-

R993 B-

R994 A-

R996 A-

R997 B-

R998 B-

R999 B-

CAPACITOR

C7 B-

C9 B-

C10 B-

C12 B-

C13 B-

C14 B-

C15 B-

C16 B-

C17 B-

C18 B-

C19 B-

C21 B-

C22 B-

C23 B-

C24 B-

C25 B-

C26 B-

C27 B-

C28 B-

C29 B-

C31 B-

C32 B-

C34 B-

C35 B-

C36 B-

C38 B-

C46 B-

C48 B-

C49 B-

C50 B-

C51 B-

C52 B-

C53 B-

C58 B-

C60 B-

C61 B-

C63 B-

C64 B-

C65 B-

C67 B-

C69 B-

C70 B-

C73 B-

C74 B-

C75 B-

C78 B-

C79 B-

C80 B-

C81 B-

C82 B-

C83 B-

C84 B-

C85 B-

C86 B-

C87 B-

C88 B-

C89 B-

C90 B-

C91 B-

C92 B-

C93 B-

C94 B-

C95 B-

C96 B-

C97 B-

C98 B-

C99 B-

C100 B-

C101 B-

C102 B-

C103 B-

C104 B-

C105 B-

C106 B-

C107 B-

C108 B-

C300 B-

C301 B-

C302 B-

C303 B-

C304 B-

C305 B-

C306 B-

C309 B-

C310 B-

C311 B-

C312 B-

C313 B-

C314 B-

C315 B-

C320 B-

C323 A-

C324 B-

C325 A-

C326 A-

C327 A-

C328 A-

C329 B-

C330 A-

C332 B-

C333 B-

C334 B-

C335 B-

C336 B-

C339 B-

C340 B-

C343 B-

C344 A-

C346 A-

C347 B-

C348 B-

C349 A-

C350 A-

C351 B-

C352 B-

C353 B-

C354 B-

C355 B-

C356 B-

C357 B-

C358 A-

C359 B-

C360 B-

C361 B-

C363 B-

C364 B-

C365 B-

C366 B-

C367 B-

C368 B-

C369 B-

C370 B-

C371 B-

C372 B-

C374 B-

C375 B-

C376 B-

C500 B-

C502 A-

C503 B-

C504 A-

C505 B-

C506 A-

C507 B-

C508 B-

C509 B-

C510 B-

C511 B-

C512 B-

C513 B-

C514 B-

C515 B-

C516 B-

C517 B-

C518 B-

C519 B-

C520 B-

C521 B-

C522 B-

C525 B-

C527 B-

C528 B-

C529 B-

C530 B-

C531 B-

C532 B-

C534 B-

C535 B-

C536 A-

C537 B-

C538 B-

C539 B-

C540 A-

C541 B-

C542 B-

C543 B-

C544 B-

C545 B-

C546 B-

C547 B-

C548 B-

C549 B-

C550 B-

C551 B-

C552 B-

C553 B-

C555 B-

C556 B-

C557 B-

C558 B-

C559 B-

C560 B-

C561 B-

C562 B-

C564 B-

C565 B-

C566 B-

C567 B-

C568 B-

C569 B-

C570 B-

C571 B-

C572 B-

C573 B-

C574 B-

C575 B-

C576 B-

C577 B-

C579 B-

C580 B-

C582 B-

C583 B-

C584 B-

C585 B-

C586 B-

C587 B-

C588 B-

C589 B-

C590 B-

C591 B-

C592 B-

C595 B-

C596 B-

C597 B-

C599 B-

C600 B-

C601 B-

C602 B-

C700 A-

C701 A-

C702 B-

C703 B-

C704 A-

C705 A-

C706 A-

C707 A-

C708 A-

C709 A-

C710 A-

C711 A-

C712 A-

C713 A-

C714 B-

C715 A-

C716 A-

C717 A-

C718 A-

C719 A-

C720 A-

C721 A-

C722 B-

C723 A-

C725 A-

C727 A-

C729 A-

C731 A-

C733 A-

C735 B-

C736 B-

C737 B-

C738 B-

C740 B-

C741 B-

C742 B-

C743 B-

C744 B-

C745 B-

C746 B-

C747 B-

C748 B-

C749 B-

C750 B-

C751 B-

C752 B-

C753 B-

C754 B-

C755 B-

C757 B-

C758 B-

C759 B-

C760 B-

C761 B-

C764 B-

C765 B-

C766 B-

C767 B-

C768 B-

C769 B-

C770 B-

C771 B-

C772 B-

C773 B-

C774 B-

C775 B-

C780 B-

C781 B-

C783 B-

C784 B-

C786 B-

C789 B-

C790 B-

C791 B-

C793 B-

C794 B-

C796 B-

C798 B-

C800 B-

C801 B-

C802 B-

C803 B-

C806 B-

C807 B-

C809 B-

C810 B-

C815 B-

C816 B-

C817 B-

C818 B-

C820 A-

C829 B-

C831 A-

C832 B-

C833 B-

C835 B-

C837 B-

C841 A-

C842 A-

C843 A-

C844 A-

C845 A-

C846 A-

C847 A-

C848 A-

C849 A-

C850 A-

C851 A-

C852 A-

C853 A-

C855 A-

C856 A-

C857 A-

C858 A-

C859 A-

C860 A-

C861 A-

C862 A-

C863 A-

C865 A-

C867 A-

C868 A-

C869 A-

C870 B-

C871 B-

C872 B-

C873 B-

C874 A-

C875 B-

C876 A-

C878 A-

C879 A-

C880 A-

C881 A-

C882 A-

C883 A-

C884 A-

C885 A-

C886 A-

C887 A-

C890 A-

C891 A-

C892 A-

C894 A-

C897 A-

C898 A-

C899 A-

C900 A-

C902 A-

C903 A-

C904 A-

C905 A-

C908 A-

C909 A-

C911 A-

C912 A-

C913 A-

C914 B-

C916 A-

C919 A-

C920 A-

C921 B-

C922 A-

C923 A-

C924 B-

C925 A-

C926 A-

C927 A-

C928 B-

C929 A-

C930 A-

C931 A-

C933 B-

C934 A-

C935 A-

C936 B-

C937 A-

C938 B-

C939 A-

C940 B-

C941 A-

C942 A-

C944 A-

C945 A-

C947 B-

C948 A-

C949 A-

C950 B-

C951 A-

C952 B-

C954 A-

C955 B-

C956 A-

C957 A-

C958 A-

C959 A-

C960 A-

C961 A-

C962 A-

C963 A-

C965 B-

C966 B-

C967 A-

C968 B-

C969 A-

C970 B-

C971 A-

C973 A-

C974 A-

C976 B-

C977 B-

C978 B-

C979 B-

C980 B-

C981 B-

C982 B-

C983 B-

C987 B-

C988 B-

C989 B-

C990 A-

C991 B-

C992 B-

C993 B-

OTHER

X1 B-

X700 A-

TH301 A-

TH302 B-

TH303 B-

TH502 B-

CN700 A-

CP1 B-

CP701 B-

CP702 B-

CP703 B-

CP704 B-

CP705 A-

CP706 B-

CP707 B-

CP708 B-

F700 A-

F701 A-

F702 A-

F703 A-

F704 B-

J700 A-

J701 A-

L1 B-

L2 B-

L4 B-

L7 B-

L8 B-

L9 B-

L10 B-

L11 B-

L12 B-

L14 B-

L15 B-

L16 B-

L18 B-

L19 B-

L20 B-

L21 B-

L22 B-

L23 B-

L24 B-

L25 B-

L26 B-

L27 B-

L28 B-

L29 B-

L30 B-

L31 B-

L32 B-

L33 B-

L34 B-

L36 B-

L37 B-

L38 B-

L39 B-

L40 B-

L41 B-

L300 B-

L301 B-

L302 B-

L303 B-

L304 B-

L305 B-

L307 A-

L308 A-

L309 A-

L311 B-

L315 B-

L316 B-

L317 B-

L318 B-

L500 B-

L501 B-

L502 B-

L503 B-

L504 B-

L506 B-

L507 B-

L508 B-

L509 B-

L510 B-

L512 B-

L513 B-

L514 B-

L516 B-

L517 B-

L700 A-

L701 A-

L702 A-

L703 A-

L704 A-

L705 B-

L706 A-

L707 A-

L709 A-

L710 B-

XF500 B-

Summary of Contents for NX-840

Page 1: ... U NX 840 COPYRIGHT 2014 JVC KENWOOD Corporation Note Lead free solder used in the board material Sn Ag In Bi melting point 227 Centigrade TABLE OF CONTENTS 1 PRECAUTION 1 4 2 SPECIFIC SERVICE INSTRUCTIONS 1 4 3 DISASSEMBLY 1 21 4 ADJUSTMENT 1 23 5 TROUBLESHOOTING 1 29 ACC This product complies with the RoHS directive for the European market This product uses Lead Free solder ...

Page 2: ...mation contained herein JVC KENWOOD Corporation reserves the right to make changes to any products herein at any time for improvement purposes Firmware Copyrights The title to and ownership of copyrights for firmware embedded in KENWOOD product memories are reserved for JVC KENWOOD Corporation Any modifying reverse engineering copy reproducing or disclosing on an Internet website of the firmware i...

Page 3: ...perature Range 22 F 140 F 30 C 60 C Frequency Stability 1 0ppm Antenna Impedance 50Ω Dimensions W x H x D Projections not included 160 x 43 x 122 6 mm 6 29 x 1 69 x 4 82 in Weight net Radio only 1 10 kg 2 42 lb RECEIVER Sensitivity Digital 0 28µV Analog 12dB SINAD 0 28µV Selectivity Analog 65dB Intermodulation Distortion Analog 65dB Spurious Response Analog 75dB Audio Output 4Ω impedance 4W with l...

Page 4: ...er Type 450 520 25W NX 840 M NX 840H K NX 840H U K 450 520 450 520 45W 45W Option Option Option Option Option Delivery Mode Function User mode For normal use PC mode Used for communication between the transceiver and PC IBM compatible PC programming mode Used to read and write frequency data and other features to and from the transceiver PC test mode Used to check the transceiver using the PC This...

Page 5: ...runs under Windows XP Vista 7 or 8 on a PC The data can be input to or read from the transceiver and edited on the screen The programmed or edited data can be printed out It is also possible to tune the transceiver 2 2 4 Clone Mode Programming data can be transferred from one transceiver to an other by connecting them via their cloning cable The operation is as follows the transmit transceiver is ...

Page 6: ... crimp terminals of the Horn alert cable to pins 13 and 14 of the square plug 4 Connect the square plug to the 15 pin connector of the KCT 60 5 Connect the remaining two Horn alert cables to your car Horn alert signal control The internal FET switch can be controlled by turning the HA function on off and by using a signaling decode output The maximum current of HA is 2A This FET switch is the open...

Page 7: ...the indentations on the right side in step 5 the right side of the projection needs to be cut off If the KCT 18 cable is dressed to be routed through the indentations on the left side the left side of the projection needs to be cut off Following is a figure presenting an example for when the right side of the projection is cut off 6 Reinstall the top packing Check the correct fitting of the top pa...

Page 8: ...n you set as Data the Function port 1 and 2 will be auto matically fixed as Input ports The reason for this is because function port 1 TXD and 2 RXD share the same circuit path of TXD and RXD line 2 3 7 Changing Serial Port Level 2 3 7 1 Change FNC1 TXD and FNC2 RXD of D SUB 15 pin connector from TTL level to RS 232C level FNC1 TXD 6pin and FNC2 RXD 7pin of D SUB 15 pin con nector are configured a...

Page 9: ...able needs to pass through one of two indentations located on the rear panel of the transceiver 4 Cut off the projection of the top packing using a pair of nip pers or similar tool If the cable is dressed to be routed through the indentations on the right side in step 4 the right side of the projection needs to be cut off If the cable is dressed to be routed through the indentations on the left si...

Page 10: ...lled by the TVC according to the channel frequency See Figure 2 2 4 2 2 First Mixer The signal from the RF amplifier is heterodyned with the first local oscillator signal from the PLL frequency synthesizer circuit at the first mixer Q503 to create a 49 95MHz first intermediate frequency 1st IF signal The first IF signal is then fed through one pair of monolithic crystal filter MCF XF500 to further...

Page 11: ...cation This DC voltage send to MCU IC714 SQIN input pin The MCU controls squelch according to the voltage SQIN level The signal from the RSSI pin of IC501 is monitored The electric field strength of the receive signal can be known before the SQIN voltage is input to the MCU and the scan stop speed is improved Fig 4 Squelch circuit 2 4 3 Transmitter System 2 4 3 1 Outline The transmitter circuit pr...

Page 12: ...mable counter in IC2 The 2 signals are phase compared filtered through a low pass filter and passed to VCO to control the oscillator frequency 2 4 4 2 VCO Circuit The operating frequency is generated by Q7 in transmit mode and Q5 in receive mode The oscillator frequency is controlled by applying the control voltage which obtained from the phase comparator to varactor diodes D5 D6 D9 D10 D11 in tra...

Page 13: ... and the green LED D23 lights after Q4 turn on In transmit mode the RLED line goes high Q2 and Q8 turns on and the red LED D23 lights BLED will be set high when the function select FPU setting is on Q6 turn on and the blue LED D22 lights The dimmer function is controlled by the switch Q5 The LED driver IC1 controls the functions of the 7 segment LED through the LEDI LECE LECL LELH lines from the M...

Page 14: ...r amplifier and then to the speaker 3 MSK DTMF MSK and DTMF signal is self genarated by the baseband IC IC709 The TX deviation adjustment is done by the output gain of baseband IC IC709 and is routed to the VCO When encoding MSK DTMF the microphone input signal is muted Fig 12 Encode 2 4 6 2 Decode 1 Low speed data QT DQT The demodulated signal from the FM IC IC501 will input to baseband IC IC701 ...

Page 15: ... 4 NXDN Transmitting For Digital Data Mode The digital data will be generated by MCU where it wil be pass to baseband IC through C BUS for encoding process The encoded data finally will transmit through TCXO and VCO modulation For Digital Voice Mode The analog voice from mic will go to ADC after audio filter to convert to PCM data The PCM data will send to Vocoder through SPI output Vocoder will c...

Page 16: ... unit IC714 Q706 SW Q719 SW Q718 SW IC721 AVR D715 B IC723 AVR IC720 AVR SBC IGN R898 R899 R969 R970 BATT_INT 33MD 33MA BATT IC714 MCU POWER SW POWKEY RESET IC722 AVR Q712 SW SB IGN IC718 AVR Pin No Port Name I O Function 1 LEDI O LED Data 2 LECE O LED Enable 3 LECL O LED Clock 4 LELH O LED Latch 5 LERE O LED Reset 6 VBAT 3 3V 7 ACR_SW O ACR switch for HSDO D A port 8 NC I No connection 9 NC I No ...

Page 17: ...EP_WP O EEPROM Write Protect 82 BUCNT1 O PTT TXD buffer control 83 VSS GND Pin No Port Name I O Function 84 VDD 33MD 85 MKEYI I DTMF MIC key input 86 BUCNT2 O DTMF MIC buffer control 87 PLL_UL I PLL Unlock Detect 88 SBC O SB Control 89 MKEYO O DTMF MIC Key output 90 9RC O 9R Control 91 PTT I PTT 92 HOOK I Hook 93 ASTSW O Assist Speed up Switch 94 VSS GND 95 VDD 33MD 96 FM_SDATA O FM IC Data In Out...

Page 18: ...nder Pin No Port Name I O Function IC703 IC 5V level shifter TXDO RTSO IC704 IC RS 232C driver IC705 IC 5V level shifter TXD2 IC706 IC MIC AFO amplifier IC709 IC Baseband IC IC710 IC Voltage regulator 33BD IC713 IC 19 2MHz amplifier IC714 IC MCU IC715 IC Evol DAC IC716 IC EEPROM IC717 IC Voltage regulator 9R IC718 IC Voltage regulator 33MD IC720 IC Voltage regulator 33MA IC721 IC Voltage regulator...

Page 19: ...tifier D309 D310 Diode ANT switch D500 Diode Squelch voltage rectifier D502 D505 Variable Capacitance Diode RF BPF tuning D700 D702 Diode Surge protection Ref No Part Name Description D704 D711 Diode Surge protection D712 D713 Diode MIC AGC detection D714 D715 Diode RXD2 level shifter D717 Zener Diode Voltage Protection D718 Diode 5M stabalize D719 Surge Absorber Voltage Protection D720 Diode PTT ...

Page 20: ...ED enable output 21 LECL O LED clock output 22 LELH O LED latch output 23 LERE O LED reset output 24 GND Ground 25 MIC I MIC signal input 26 ME MIC ground 27 HOOK RXD I O HOOK PC serial data 28 PTT TXD I O PTT PC serial data 29 MKEY I O MIC data detection 30 POWER I Detection input of power switch Pin No Name I O Function J700 D SUB 15pin 1 SB O Battery voltage DC supply DC 13 6V 15 1 0A max 2 IGN...

Page 21: ...ector of the panel as sembly 4 To remove the speaker holder first remove the two screws from the display PCB using a phillips screwdriver Then insert a flat head screwdriver under the tabs of the speaker holder and tilt it in the direction shown by the ar row Remove the speaker from the front panel by turning it in the direction indicated together with the speaker holder and display PCB 5 When rem...

Page 22: ...er into the hollows of the front panel in order 1 2 3 and 4 Then tighten the two screws of the display PCB 2 When mounting the panel assembly pass the flat cable through the hole of the chassis as shown below then con nect the flat cable to connector of the panel assembly 3 Fit the panel assembly into the two tabs of the chassis top side first Then fit the panel assembly into the two tabs of the c...

Page 23: ...Frequency Range 100 to 520MHz 4 Digital Volt Meter DVM Measuring Range 1V to 20V DC Input Impedance High input impedance for minimum circuit loading 5 Oscilloscope DC through 30MHz 6 High Sensitivity Frequency Counter Frequency Range 10Hz to 1000MHz Frequency Stability 0 2ppm or less 7 Ammeter 20A 8 AF Volt Meter AF VM Frequency Range 50Hz to 10kHz Voltage Range 1mV to 3V 9 Audio Generator AG Freq...

Page 24: ...ng 5 reference level adjustments frequency Channel No RX MHz TX MHz 1 485 05000 485 10000 2 450 05000 450 10000 3 519 85000 519 90000 4 485 00000 485 00000 5 485 20000 485 20000 6 485 40000 485 40000 7 16 Signaling No RX Decode TX Encode 1 None None 2 None 20Hz Square wave 3 QT 67 0Hz QT 67 0Hz 4 QT 151 4Hz QT 151 4Hz 5 QT 210 7Hz QT 210 7Hz 6 QT 254 1Hz QT 254 1Hz 7 DQT D023N DQT D023N 8 DQT D754...

Page 25: ...Lock voltage Change the adjust ment to get the VCO Lock Voltage within the limit of the spec ified voltage 2 5 0 1V 3 Transmit Assist voltage 1 Select each tab CH Low CH Low CH Center CH High CH High Note 1 Item Condition Measurement Adjustment Specifications Remarks Test equipment Unit Terminal Unit Parts Method 1 Frequency 1 Test CH Center 1 point PTT ON Transmit Frequency counter ANT TX RX FPU ...

Page 26: ... Oscilloscope ANT FPU 2 0kHz According to larger 50Hz Note FPU auto input 1kHz 150mV 7 Maximum Deviation NXDN Very Narrow Note 3 1 Test CH Low Low Center High High 5 point 2 Deviation meter filter LPF 15kHz HPF OFF 3 PTT ON Transmit Deviation Meter Oscilloscope ANT FPU 1 337kHz 50Hz 8 CW ID Deviation NXDN Very Narrow Note 3 1 TestCH Center 1point 2 Deviation meter filter LPF 15kHz HPF OFF 3 PTT ON...

Page 27: ... SSG output 90dBm AF Freq 1kHz Mod Dev 1 5kHz SSG Oscilloscope Audio Analyzer ANT FPU Press Start Auto tuning 2 Open Squelch 5 Analog Narrow 1 Test CH Low Low Center High High 5 point 2 SSG output 120dBm AF Freq 1kHz Mod Dev 1 5kHz SSG Oscilloscope Audio Analyzer ANT FPU Press Start Auto tuning NXDN Very Narrow 1 Test CH Low Low Center High High 5 point 2 SSG output 124dBm AF Freq 400Hz Mod Dev 1 ...

Page 28: ...SSI Note 4 Analog Narrow 1 Test CH Low Low Center High High 5 point 2 SSG output 80dBm AF Freq 1kHz Mod Dev 1 5kHz SSG Oscilloscope Audio Analyzer ANT FPU Press Start Auto tuning NXDN Very Narrow 1 Test CH Low Low Center High High 5 point 2 SSG output 80dBm AF Freq 1kHz Mod Dev 1 5kHz SSG Oscilloscope Audio Analyzer ANT FPU Press Start Auto tuning Item Condition Measurement Adjustment Specifica ti...

Page 29: ...el place ment 4 If necessary write the FPU data used by the customer with the KPG 175D Note When a new printed circuit board is used the KENWOOD ESN changes as does the Transceiver Information dis play of the KPG 175D but this does not have any effect on the operation of the transceiver If changing to the original ESN please contact our service center Model Name Plate Label Layout Model Name Origi...

Page 30: ...MEMO ...

Page 31: ...707 CN706 CN705 CN704 CN703 CN702 CN701 CN503 CN501 CN500 CN3 CN1 C990 C974 C973 C971 C969 C967 C963 C962 C961 C960 C959 C958 C957 C956 C954 C951 C949 C948 C945 C944 C942 C941 C939 C937 C935 C934 C931 C930 C929 C927 C926 C925 C923 C922 C920 C919 C916 C913 C912 C911 C909 C908 C905 C904 C903 C902 C900 C899 C898 C897 C894 C892 C891 C890 C887 C886 C885 C884 C883 C882 C881 C880 C879 C878 C876 C874 C869...

Page 32: ... D503 D502 D501 D500 D310 D309 D308 D307 D304 D301 D300 D17 D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 CP708 CP707 CP706 CP704 CP703 CP702 CP701 CP1 CN937 CN726 CN725 CN724 CN722 CN506 CN505 CN504 CN502 CN301 CN4 CN2 C993 C992 C991 C989 C988 C987 C983 C982 C981 C980 C979 C978 C977 C976 C970 C968 C966 C965 C955 C952 C950 C947 C940 C938 C936 C933 C928 C924 C921 C914 C875 C873 C872 C871 C870 C837 C83...

Page 33: ... 1B R964 B 2D R965 A 1C R966 B 1D R968 A 3B R969 A 3B R970 A 3B R971 A 3A R972 A 3A R973 B 2A R974 A 1A R975 A 2A R976 A 2A R977 A 1A R978 A 2B R979 A 2A R980 A 5B R981 A 5B R983 A 5B R984 B 2A R985 B 2B R986 A 3B R987 A 2B R988 A 2B R989 A 2B R990 A 2A R991 B 2A R992 B 2A R993 B 1B R994 A 2A R996 A 2C R997 B 2B R998 B 2B R999 B 2B CAPACITOR C7 B 3B C9 B 2B C10 B 3B C12 B 3B C13 B 3B C14 B 3B C15 ...

Page 34: ...ress may have an address error by one interval REF NO LOCATION REF NO LOCATION REF NO LOCATION IC IC1 B 4B TRANSISTOR Q1 B 1B Q2 B 1B Q3 B 2A Q4 B 2A Q5 B 3B Q6 B 1B Q7 B 1B Q8 B 1B Q9 B 1B DIODE D20 B 1A D22 B 1B D23 B 1B D33 B 1A D37 A 3B RESISTOR R1 B 1A R2 B 1A R3 B 2B R4 B 2B R5 B 2B R6 B 2B R7 B 2B R8 B 2B R10 B 2A R11 B 2A R12 B 2A R21 B 1B R22 B 1B R23 B 1B R26 B 1A R27 B 1B R28 B 1B R29 B...

Page 35: ...7 DVSS 26 DVDD 25 DETo 24 SDATA 23 SCLK 22 CSN 21 RSTN 20 PDN 19 AVSS2 18 IFoUT 17 RSSIoUT 16 PDoUT 15 DISCoUT 14 AUDIooUT 13 NAMPI 12 NAMPo 11 NRECTo 10 BIAS 9 AVDD 8 AVSS 7 VREFA 6 NC4 5 NC3 4 NC2 3 NC1 2 IFIP 1 AK2365 IC501 1800p C509 0 033u C518 330k R513 D 47k R519 0 R526 120 R538 100p C529 560k R504 10u C531 1M R520 270p C525 22p C512 10u C520 0 1u C507 56p C505 0 1u C515 100 R514 100k R510 ...

Page 36: ... C582 R41 3 5p R26 220n R548 L34 2 2M 220n L302 C61 270p 390 82 1 5p 100p 6p 470k 470p 1p 470 100p 6 8n 56 68k L300 3p R311 C584 12k R508 C963 39k R586 10n 1 5k 13p 0 1k C46 100k 82n 6 8n C599 2p 2p C965 27n 0 0 11 39k 270p 1 5p 2p C348 C719 270p 0 15u L7 470p R564 C60 C106 C83 470p L8 11p 1M R545 4 5p 0 11 0 22 1p 22 C561 22n 470p R504 15p 1 5p C371 11p 100 D309 100p R72 0 18n L516 6p C324 L316 0...

Page 37: ...13 18 oUT12 17 oUT11 16 oUT10 15 oUT9 14 oUT8 13 oUT7 12 oUT6 11 oUT5 10 oUT4 9 oUT3 8 oUT2 7 oUT1 6 oUT0 5 SLAT 4 SCK 3 SIN 2 GND 1 TCA62746AFNAG IC1 L92 0138 05 L1 RT1N441U Q2 RT1N441U Q1 RT1P141U Q8 RT1P141U Q7 100p C41 B30 2321 05 D22 B30 2151 05 D23 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CN1 1000p C40 Q5 2SC3928A 12k R35 4 7k R36 HDSP 521A D37 1k R34 ...

Page 38: ...ow DEV at AF 1kHz In the RF section use a 1000pF coupling capacitor ANT BPF BPF LNA Q506 Mixer Q503 MCF XF500 FMIC IC501 IF_1 49 95MHz IF_2 450kHz 16 9 IC719 J701 16 26 AF Frequency 1kHz 15 13 4 Vrms 0 100Vrms 281mVrms 242mVrms 83mVrms Baseband IC IC709 Baseband IC IC709 17 16 N 100dBm IF amplifier Q501 N 116 5dBm N 101 5dBm N 103dBm N 119 5dBm N 120 dBm Baseband IC IC709 Baseband IC IC709 Q7 Q12 ...

Page 39: ...ROTEC T D704 706 707 709 711 DA221 16 8MHz Q500 KTC4080E P IC501 AK2365A 50 4MHz 2nd Local SQIN RSSI MIC MOD AMP IC706 NJM2100V ZB AGC DET LEVEL SHIFT 3 3 5 LEVEL SHIFT 5 3 3 IC724 TC7WT126FU F IC725 TC7WT126FU F MIC ME GND PTT TXD HOOK RXD POWER MKEY SB 5MS SP SP LEDM MBL LERE LELH LECL LECE REDLED LEDI GRNLED BLULED KMO1 KMO2 KMO3 KMI1 KMI2 KMI3 M1MUTE 5M 33MD PTT TXD MKEY MKEYI BUCNT1 BUCNT2 HO...

Page 40: ...MEMO ...

Page 41: ...rt numbers BEWARE OF BOGUS PARTS Parts that do not meet specifications may cause trouble in regard to safety and performance We recommend that genuine parts be used x_ in a description column shows the number of the used part Contents Exploded view of general assembly and parts list Electrical parts list Packing materials and accessories parts list 3 2 3 4 3 12 ...

Page 42: ...w of general assembly and parts list 6 DISPLAY UNIT 01 8 11 10 3 12 1 9 14 16 15 2 5 4 13 A A B B B D D D D D D B D D C C TX RX UNIT 02 Block No M1MM 7 D 17 X54 D37 X54 X54 X54 J1 D23 D22 X54 101 XC1 IC301 R374 XC1 IC705 J701 XC1 J700 ...

Page 43: ...1461 05 FLAT CABLE 30P PANEL 10 G53 1643 04 PACKING DC CORD 11 G53 1662 04 PACKING RECEPTACLE 12 G53 1819 21 PACKING CHASSIS 13 G53 1820 03 PACKING PANEL 14 J19 5528 03 HOLDER SPEAKER 15 K29 9448 01 KEY TOP 16 T07 0785 15 SPEAKER 17 F10 3140 13 SHIELD CASE A N35 2604 43 BINDING HEAD MACHINE SCREW x2 B N67 3008 48 PAN HEAD SEMS SCREW x4 C N80 2008 48 PAN HEAD TAPTITE SCREW x2 D N87 2608 48 BRAZIER ...

Page 44: ...K73HB1J562J MG RESISTOR 5 6K J 1 16W R12 RK73HB1J682J MG RESISTOR 6 8K J 1 16W R21 RK73HB1J222J MG RESISTOR 2 2K J 1 16W R22 RK73HB1J820J MG RESISTOR 82 J 1 16W R23 RK73HB1J121J MG RESISTOR 120 J 1 16W R26 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R27 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R28 RK73HB1J103J MG RESISTOR 10K J 1 16W R29 RK73HB1J103J MG RESISTOR 10K J 1 16W R34 RK73HB1J102J MG RESISTOR 1 0K ...

Page 45: ... 010UF K C25 CK73HB1E103K C CAPACITOR 0 010UF K C26 CC73HCH1H101J C CAPACITOR 100PF J C27 CC73HCH1H101J C CAPACITOR 100PF J C28 CK73HB1A224K C CAPACITOR 0 22UF K C29 CK73HB1A224K C CAPACITOR 0 22UF K C31 CK73HB1H271K C CAPACITOR 270PF K C32 CK73HB1E103K C CAPACITOR 0 010UF K C34 CS77MA1D1R5M TA E CAPACITOR 1 5UF 20WV C35 CK73HB1H271K C CAPACITOR 270PF K C36 CS77MA1V0R1M TA E CAPACITOR 0 1UF 35WV C...

Page 46: ... C CAPACITOR 0 10UF K C534 CK73HB0J225K C CAPACITOR 2 2UF K Symbol No Part No Part Name Description Local C535 CK73HB0J225K C CAPACITOR 2 2UF K C536 CK73GB1A105K C CAPACITOR 1 0UF K C537 CK73HB1H471K C CAPACITOR 470PF K C538 CK73HB1E103K C CAPACITOR 0 010UF K C539 CK73HB1E103K C CAPACITOR 0 010UF K C540 CK73HB0J225K C CAPACITOR 2 2UF K C541 CC73HCH1H020B C CAPACITOR 2 0PF B C542 CK73HB1A105K C CAP...

Page 47: ...C842 CK73HB1A104K C CAPACITOR 0 10UF K Symbol No Part No Part Name Description Local C843 CK73HB1A104K C CAPACITOR 0 10UF K C844 CK73HB1H102K C CAPACITOR 1000PF K C845 CK73HB1A104K C CAPACITOR 0 10UF K C846 CK73HB1H102K C CAPACITOR 1000PF K C847 CK73HB1A104K C CAPACITOR 0 10UF K C848 CK73HB1H102K C CAPACITOR 1000PF K C849 CK73GB1H102K C CAPACITOR 1000PF K C850 CK73HB1H102K C CAPACITOR 1000PF K C85...

Page 48: ...cription Local R52 RK73FB2B102J MG RESISTOR 1 0K J 1 8W R53 RK73HB1J220J MG RESISTOR 22 J 1 16W R54 RK73HB1J103J MG RESISTOR 10K J 1 16W R55 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R57 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R58 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R59 RK73HB1J473J MG RESISTOR 47K J 1 16W R60 RK73HB1J393J MG RESISTOR 39K J 1 16W R61 RK73HB1J393J MG RESISTOR 39K J 1 16W R62 RK73HB1J473J ...

Page 49: ...01J MG RESISTOR 100 J 1 16W R703 RK73HB1J102J MG RESISTOR 1 0K J 1 16W Symbol No Part No Part Name Description Local R704 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R705 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R706 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R707 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R708 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R709 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R710 RK73HB1J000J MG RESISTOR 0...

Page 50: ...SISTOR 1 0K J 1 16W R906 RK73HB1J103J MG RESISTOR 10K J 1 16W Symbol No Part No Part Name Description Local R907 RK73HB1J100J MG RESISTOR 10 J 1 16W R908 RK73HB1J473J MG RESISTOR 47K J 1 16W R909 RK73HB1J473J MG RESISTOR 47K J 1 16W R910 RK73HB1J473J MG RESISTOR 47K J 1 16W R911 RK73HB1J473J MG RESISTOR 47K J 1 16W R912 RK73HB1J000J MG RESISTOR 0 0 J 1 16W R913 RK73HB1J102J MG RESISTOR 1 0K J 1 16...

Page 51: ...NH L318 L40 1875 71 SMALL FIXED INDUCTOR 18NH L500 L41 1885 53 SMALL FIXED INDUCTOR 0 18UH L501 L40 1085 71 SMALL FIXED INDUCTOR 100NH L502 L40 1591 86 SMALL FIXED INDUCTOR 1 5UH L503 L41 2785 39 SMALL FIXED INDUCTOR 0 27U L504 L41 6885 39 SMALL FIXED INDUCTOR 0 68U L506 L41 6868 14 SMALL FIXED INDUCTOR 6 8NH L507 L41 6868 14 SMALL FIXED INDUCTOR 6 8NH L508 L41 6868 14 SMALL FIXED INDUCTOR 6 8NH L...

Page 52: ...M 2 E30 7523 55 DC CORD ASSY ACCESSORY 3 F52 0024 05 FUSE BLADE TYPE 15A ACCESSORY x2 HK HUK 3 F52 0023 05 FUSE BLADE TYPE 10A ACCESSORY x2 M 4 H12 3178 05 PACKING FIXTURE x2 5 H52 2674 02 ITEM CARTON CASE 6 J19 1584 15 HOLDER MIC HANGER HK HUK 7 J29 0726 03 BRACKET ACCESSORY 8 N99 2039 05 SCREW SET 9 T91 0624 65 MICROPHONE KMC 30 ACCESSORY HK 10 T91 0639 65 MICROPHONE KMC 35 ACCESSORY HUK 4 Block...

Page 53: ...MEMO ...

Page 54: ... No RA011 Rev 001 VSE Printed in Japan JVC KENWOOD Corporation Communications Equipment Div ...

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