============================================================================== K E N W O O D >>> A M A T E U R R A D I O S E R V I C E B U L L E T I N <<< ============================================================================== Kenwood Service Centers Kenwood Service Corporation Kenwood Service Center, East 2201 East Dominguez Street 829 Lynnhaven Parkway, Suite 130 Long Beach, California 90801 Virginia Beach, Virginia 23452 Telephone 1-310-639-5300 Telephone 1-804-340-1702 ============================================================================== AMATEUR RADIO SERVICE BULLETINS BY MODEL UPDATED January 3, 1995 AT-50 ASB-1025 BLOWS ACCY FUSE IN TS-50 AT-50 ASB-1054 MECHANICAL STABILITY OF CASE AT-50 ASB-1010 AT-50 BLOWS ACCESSORY FUSE IN TS-50 AT-930 ASB-0877 SERVICE NOTES BS-5 ASB-0052 SM-220/BS-5 SWEEP INTERFERENCE BS-8 ASB-0041 ALIGNMENT WITH TS-180S/SM220 DG-1 ASB-0053 SERVICE NOTES (PC BOARD SOLDER) DG-1 ASB-0026 SERVICE NOTE / BAD SOLDER JOINTS DG-1 ASB-0019 NEW DISPLAY TUBE DG-5 ASB-0062 USE WITH TS-511/TS-900/T/R-599 DG-5 ASB-0029 THEORY OF OPERATION DG-5 ASB-0054 SERVICE NOTES (PC BOARD SOLDER) DG-5 ASB-0028 REPAIR NOTES DG-5 ASB-0025 REPAIR OF RCA PLUGS/JACKS DK-520 ASB-0062 USE WITH TS-511/TS-900/T/R-599 DRU-2 ASB-0989 ERRATIC PLAYBACK/MEMORY LOSS DS-2 ASB-0842 REPLACEMENT FOR DS-1A IN TS820/TS520 DSP-100 ASB-0992 6 PIN CABLE CHANGE HMC-1 ASB-0914 NOT TO BE USED WITH TH-205AT/TH-215A MC-44DM ASB-1022 INTERMITTENT AUDIO MC-44DM ASB-0958 INCREASE IN AUDIO LEVEL MC-45 ASB-0035 MODIFICATION FOR USE WITH TR-7400A MC-46 ASB-0852 DTMF OPERATION WITH OLDER EQUIPMENT MC-48 ASB-0983 MIC ELEMENT CHANGE /INSTALLATION MC-55 ASB-0953 CHANGE IN MIC ELEMENT (T91-0328-08) PB-2/PB-12 ASB-0985 BATTERY CURRENT LIMITING RESISTOR FAILURE PS-430 ASB-0938 VOLTAGE INCREASE WITH TH-205/215 PS-50 ASB-0916 AVR FAILURE /IMPROVED SURGE PROTECTION QR-666 ASB-0003 VFO STABILITY IN SWL RECEIVER R-1000 ASB-0805 MUTING OPERATION - OPS MANUAL UPDATE R-1000 ASB-0813 AGC, AM BANDWIDTH CHANGES R-1000 ASB-0823 RF ATTENUATOR 10 DB STEP OPTION R-5000 ASB-0919 NO FREQUENCY CHANGE THROUGH COMPUTER R-599A/D ASB-0031 REMOVING CB BAND R-599A/D ASB-0008 SERVICE NOTES RC-10 ASB-0927 ALTERNATOR NOISE IN MIC CIRCUIT RC-10 ASB-0922 HANG UP TIME/TIMEOUT TIMER SETTINGS/XBAND RPT RM-76 ASB-0802 MICROPROCESSOR FAILURE RM-76 ASB-0059 BATTERY BACK-UP POWER RM-76 ASB-0033 FREQUENCY ERROR WITH TR-7600/7625 SM-220 ASB-0066 FEEDBACK FROM BS-8 SM-220 ASB-0052 SM-220/BS-5 SWEEP INTERFERENCE SM-220 ASB-0041 ALIGNMENT WITH TS-180S/SM220 SM-220 ASB-0057 SHIELD INSTALLATION/SWEEP INTERFERENCE SM-230 ASB-0975 RTTY CROSS PATTERN MODIFICATION SM-230 ASB-0970 BANDSCOPE ATTENUATION MOD SMC-25 ASB-0864 MODIFICATION FOR USE WITH THE TR-2400 SMC-34 ASB-1031 DISTORTED/MUFFLED AUDIO T-599A/D ASB-0007 SERVICE NOTES T-599D ASB-0017 REDUCING 120HZ HUM T-599D ASB-0006 CHAIN DRIVE MODIFICATION TH-205A ASB-0987 NEW PTT KNOB INSTALLATION TH-205A ASB-0944 VOLUME/SQUELCH CONTROL IMPROVEMENTS/BRACKET TH-205A ASB-0945 RCV SIGNAL TO NOISE RATIO IMPROVEMENTS TH-205A ASB-0920 PROTECTION FUSE REPLACEMENT WITH DIODE TH-215A ASB-0944 VOLUME/SQUELCH CONTROL IMPROVEMENTS/BRACKET TH-215A ASB-0987 NEW PTT KNOB INSTALLATION TH-215A ASB-0946 TX SIGNAL TO NOISE RATIO IMPROVEMENT TH-215A ASB-0920 PROTECTION FUSE REPLACEMENT WITH DIODE TH-22AT ASB-1057 MEMORY LOSS WHEN BATTERY RUNS DOWN TH-25A ASB-0939 DISABLE AUTOMATIC POWER OFF FUNCTION TH-25A ASB-0932 TSU-6 ERRATIC TONE ALERT FUNCTION TH-25AT ASB-0968 KEYPAD OVERLAY REPLACEMENT TH-26A ASB-0976 INTERNAL BIRDIES TH-27A ASB-0993 LOW TX POWER WITH TOSHIBA MODULES TH-28A ASB-1037 CTCSS TONE ERROR - 131.8,136.5,173.8 HZ TH-28A ASB-1028 DIFFICULT BATT. INSERTION TH-315A ASB-0987 NEW PTT KNOB INSTALLATION TH-415A ASB-0946 TX SIGNAL TO NOISE RATIO IMPROVEMENT TH-415A ASB-0944 VOLUME/SQUELCH CONTROL IMPROVEMENTS/BRACKET TH-415A ASB-0987 NEW PTT KNOB INSTALLATION TH-42AT ASB-1057 MEMORY LOSS WHEN BATTERY RUNS DOWN TH-45A ASB-0932 TSU-6 ERRATIC TONE ALERT FUNCTION TH-45A ASB-0939 DISABLE AUTOMATIC POWER OFF FUNCTION TH-45AT ASB-0968 KEYPAD OVERLAY REPLACEMENT TH-48A ASB-1028 DIFFICULT BATT. INSERTION TH-48A ASB-1037 CTCSS TONE ERROR - 131.8,136.5,173.8 HZ TH-48A ASB-1039 MICRO CHANGE - DISABLE 800 MHZ RECEIVE TH-75A ASB-0978 INTERMITTENT MEMORY LOSS TH-75A ASB-0957 NO TX ON VHF WHEN IN VEHICLE TH-77A ASB-0981 MEMORY LOSS WITH LOW BATTERY VOLTAGE TH-78A ASB-1038 MICRO CHANGE - DISABLE 800 MHZ RECEIVE TH-78A ASB-1028 DIFFICULT BATT. INSERTION TH-78A ASB-1048 IMD IMPROVEMENT TH-78A ASB-1008 CALL CH. TONE FREQ PROBLEM WITH TSU-7 TH-78A ASB-0997 CLONE FAILURE W/ME-1 TH-78A ASB-1013 LEFT ENCODER INOPERATIVE TM-201 ASB-0880 INCREASED TX AUDIO / MIC GAIN TM-211 ASB-0897 AF GAIN CONTROL PART CHANGE TM-221A ASB-0933 NO TX IN HIGH POWER DUE TO VOLTAGE DROP TM-221A ASB-0934 FINAL MODULE/LOW POWER OUTPUT HINTS TM-231A ASB-0966 INTERMITTENT MEMORY LOSS TM-2550 ASB-0904 DCL CALL SIGN DATA LOSS TM-2570 ASB-0906 LOW TX POWER OUTPUT WITH GOOD VSWR TM-321A ASB-0935 LOSS OF TX AUDIO WITH MC-48B TM-3530A ASB-0925 NOISY TRANSMIT AFTER WARMUP TM-401 ASB-0880 INCREASED TX AUDIO / MIC GAIN TM-411 ASB-0897 AF GAIN CONTROL PART CHANGE TM-411 ASB-0892 LOW/NO RECEIVER SENSITIVITY TM-411 ASB-1041 MICRO CHANGE - DISABLE 800 MHZ RECEIVE TM-455A ASB-1058 CHANGE IN PIN DIODE TM-531A ASB-0956 20 MHZ OFFSET MODIFICATION TM-631A ASB-0972 MEMORY LOSS TM-631A ASB-0977 144MHZ FINAL BOARD CHANGE TM-642A ASB-1040 MICRO CHANGE - DISBALE 800 MHZ RECEIVE TM-642A ASB-1042 MICRO CHANGE - SUPERCEDES ASB-1033 TM-701A ASB-0967 INTERMITTENT MEMORY LOSS TM-721A ASB-0936 S-METER DEFLECTION DUE TO PULSE NOISE TM-721A ASB-0937 AF PA WHITE NOISE WITH UNIT SQULCHED TM-721A ASB-0931 LOW/NO VHF TRANSMIT POWER TM-721A ASB-0930 MICROCOMPUTER LOCK-UP TM-731A ASB-0977 144MHZ FINAL BOARD CHANGE TM-731A ASB-0972 MEMORY LOSS TM-731A ASB-0965 DELETED TM-732A ASB-1056 APC CIRCUIT MODIFICATION TM-732A ASB-1023 S-METER SQUELCH SCAN IMPROVEMENT TM-732A ASB-1014 NOISE AT SQULECH ON/OFF ON OTHER BAND TM-732A ASB-1027 PROT OF Q201 (FIRST RF AMP) 440 SIDE TM-732A ASB-1011 LOW CROSS-BAND REPEAT AUDIO TM-732A ASB-1005 CHANGE IN VALUE OF CHIP FUSE TM-732A ASB-1051 CONTROL PCB FOIL DAMAGE TM-732A ASB-0996 440 RECEIVE INTERFERENCE FROM 2 METER XMIT TM-733A ASB-1061 PL TONE BLEED THRU TO SPEAKER TM-733A ASB-1060 PL TONE DISTORTION/AUDIBLE TM-742A ASB-1040 MICRO CHANGE - DISBALE 800 MHZ RECEIVE TM-742A ASB-1042 MICRO CHANGE - SUPERCEDES ASB-1033 TM-742A ASB-1029 28MHZ/50MHZ R/C XMIT FAILURE TM-742A ASB-1033 MICRO LOCKUP WHEN IN REMOTE OPERATION TM-941A ASB-0980 BPF ALIGNMENT TOOL TM-942A ASB-1042 MICRO CHANGE - SUPERCEDES ASB-1033 TM-942A ASB-1040 MICRO CHANGE - DISBALE 800 MHZ RECEIVE TM-942A ASB-1029 28MHZ/50MHZ R/C XMIT FAILURE TM-942A ASB-1033 MICRO LOCKUP WHEN IN REMOTE OPERATION TR-2200A ASB-0022 SERVICE NOTES TR-2200A ASB-0011 ANTENNA ADAPTER TR-2400 ASB-0830 EXCESSIVE BACKGROUND NOISE ON XMIT TR-2400 ASB-0822 BATTERY CHARGER FAILURE / REPAIR TR-2400 ASB-0811 RX LOW, INTERMITTENT, OR DISTORTED TR-2400 ASB-0815 PULSE NOISE IN RECEIVE OR TRANSMIT TR-2400 ASB-0818 SCRATCHY TX AUDIO TR-2400 ASB-0810 DISPLAY OR KEYBOARD TROUBLE TR-2400 ASB-0809 UNWANTED NOISE: TONE OR BURST AT TX TR-2400 ASB-0819 VOLUME CONTROL REPLACEMENT - PRECAUTIONS TR-2400 ASB-0807 OPTIONAL CHARGE INPUT PROTECTION TR-2400 ASB-0814 PLL UNLOCK / LOW CRYSTAL ACTIVITY TR-2400 ASB-0058 TONE ENCODER RFI/MOTORBOATING TR-2400 ASB-0808 OFFSET FAILURE TR-2500 ASB-0858 RX IMD IMPROVEMENT TR-2600A ASB-0901 PLL UNLOCK (TROUBLESHOOTING) TR-2600A ASB-0903 PLL UNLOCK CAUSED BY OSC FAILURE TR-7200A ASB-0023 SERVICE NOTES TR-7400A ASB-0034 METER LAMP LONGER LIFE TR-7400A ASB-0010 FINAL UNIT ARCING TR-7400A ASB-0035 MODIFICATION FOR USE WITH TR-7400A TR-7400A ASB-0018 VARIOUS SERVICE NOTES TR-7400A ASB-0032 CHANGES IN PD UNIT OF IC'S TR-7600 ASB-0050 OPTIONAL CERAMIC FILTER TR-7600 ASB-0065 RF POWER MODULE RETURNS (OBSOLETE) TR-7600 ASB-0039 ALTERNATOR WHINE TR-7600 ASB-0806 MEMORY BATTERY BACK-UP TR-7600 ASB-0045 AUDIO TONE ON TX TR-7625 ASB-0806 MEMORY BATTERY BACK-UP TR-7625 ASB-0039 ALTERNATOR WHINE TR-7625 ASB-0050 OPTIONAL CERAMIC FILTER TR-7625 ASB-0826 HYBRID AMPLIFIER MODULE SUBSTITUTION TR-7625 ASB-0820 FINAL MODULE REPLACEMENT (USE SB-826) TR-7625 ASB-0065 RF POWER MODULE RETURNS (OBSOLETE) TR-7625 ASB-0804 INTERMITTENT TX TR-7625 ASB-0045 AUDIO TONE ON TX TR-7730 ASB-0854 TRANSMITTER FREQUENCY RESPONSE VOICE AND DTMF TR-7800 ASB-0861 MEMORY RETENTION IMPROVEMENTS TR-7800 ASB-0828 TONE PAD CONVERSION FOR 4TH COLUMN (ABCD) TR-7800 ASB-0836 CONTINUOUS CHARGE FOR INTERNAL BATTERIES TR-7800 ASB-0833 OPTIONAL FILTERS TO IMPROVE SELECTIVITY TR-7800 ASB-0841 DISPLAY FAILURE CAUSED BY FAILURE OF CLOCK TR-7800 ASB-0829 INTERMITTANT LOSS OF MEMORY TR-7800 ASB-0860 MEMORY CH. 7 INDICATOR ERRATIC TR-7800 ASB-0834 PULSE NOISE AND SPKR BUZZ DURING XMIT TR-7850 ASB-0861 MEMORY RETENTION IMPROVEMENTS TR-7850 ASB-0846 RF LED METER DISPLAYS LOW READING TR-7850 ASB-0860 MEMORY CH. 7 INDICATOR ERRATIC TR-7930 ASB-0870 RX INTERFERENCE FROM FM/TV BROADCAST TR-7950 ASB-0870 RX INTERFERENCE FROM FM/TV BROADCAST TR-8300 ASB-0016 RECIEVER/TRANSMITTER ALIGNMENT TR-8400 ASB-0853 TRANSMITTER FREQUENCY RESPONSE VOICE AND DTMF TR-8400 ASB-0855 TRANSMIT/RECEIVE SWITCH TIME / PLL LOCKUP TR-8400 ASB-0843 SUB-AUDIBLE ENCODER INSTALLATION TR-8400 ASB-0845 RX INTERNAL SPURIOUS SIGNALS TR-9000 ASB-0824 CW/SSB TX INSTABILITY / FM'ING / CHIRP ON CW TR-9000 ASB-0859 STABILITY IMPROVEMENT / PLL UNLOCK TR-9000 ASB-0833 OPTIONAL FILTERS TO IMPROVE SELECTIVITY TR-9000 ASB-0849 XMIT SIDEBAND DISTORTION / CARRIER BALANCE TR-9000 ASB-0825 TX PULSE NOISE IN SSB TRANSMISSION TR-9130 ASB-0871 LOW DRIVE LEVEL / LOW OUTPUT POWER TS-120S ASB-0831 ANT INPUT TRANSFORMER REPLACEMENT (NEW PART) TS-120S ASB-0801 TX OSCILLATION (USE SB-844) TS-120S ASB-0044 PHONE PATCH TERMINAL ADDITION TS-120S ASB-0060 REPAIR NOTES TS-120S ASB-0827 VFO INSTABILITY AND DRIFT TS-120S ASB-0821 TX OSCILLATION (SEE ASB-844) TS-120S ASB-0064 FULL CW OUTPUT IN SSB MODE (USE SB-944) TS-120S ASB-0832 FULL CW OUTPUT IN SSB MODE (SEE ALSO ASB-844) TS-120S ASB-0051 FINAL PROTECTION TS-120S ASB-0816 BAND PASS FILTER CHANGE - IMPROVE SELECTIVITY TS-120S ASB-0844 TX OSCILLATION ESPECIALLY ON 10-15-20 METERS TS-120S ASB-0037 VOX OPERATION PICK-UP TIME TS-120S ASB-0040 ANTENNA INPUT TRANSFORMER REPLACEMENT TS-120S ASB-0038 FINAL TRANSISTOR REPLACEMENT TS-120S ASB-0048 HUM IN SSB TX TS-140S ASB-0929 MOMENTARY TRANSMISSION WHEN VOX IS TURNED ON TS-140S ASB-0928 INTERMITTENT LOSS OF TRANSMIT POWER TS-180S ASB-0041 ALIGNMENT WITH TS-180S/SM220 TS-180S ASB-0036 HUM WITH PS-30/ERRATIC DFC TS-180S ASB-0055 ALC LOSS OR REDUCTION ON 40 METERS TS-180S ASB-0042 IF #2 OUTPUT LEVEL FOR SM220 OPERATION TS-180S ASB-0067 DFC INSTABILITY TS-180S ASB-0047 INCREASE OF RX AUDIO OUTPUT TS-180S ASB-0803 CW DELAED KEYING DURING CW VOX OPERATION TS-180S ASB-0056 DFC/HUM/INTERMITTANT FREQ STABILITY TS-180S ASB-0839 VFO INSTABILITY / DRIFT IMPROVEMENT TS-180S ASB-0817 LINEAR AMPLIFIER OPERATION / SWITCHING TIMES TS-180S ASB-0850 ALC LEVEL IMPROVEMENT / LPF CHANGES TS-180S ASB-0044 PHONE PATCH TERMINAL ADDITION TS-180S ASB-0061 TROUBLE SHEET/REPAIR NOTES TS-430S ASB-0882 NOTCH CONTROL/BETTER ADJUSTMENT TS-430S ASB-0865 500 KHZ HETERODYNE TS-430S ASB-0895 PLL UNLOCK AT HIGH TEMPERATURE TS-430S ASB-0885 INTERNAL BEAT AT 28.415 & 21.526 TS-430S ASB-0883 AM WIDE/NARROW FILTER SELECTION TS-430S ASB-0902 LOW/INTERMITTENT RX / LPF RELAYS TS-430S ASB-0891 DELETED, SUPERCEDED BY #0895 TS-430S ASB-0887 NOISE BLANKER IMPROVEMENTS TS-430S ASB-0888 INTERMITTENT PLL UNLOCK IN FM/AM TS-440S ASB-0974 PLL UNLOCK / PLL #1 TS-440S ASB-0952 INTERMITTENT OPERATION/ROM SOCKET TS-440S ASB-0986 S/M ALIGNMENT PROCEDURE UPDATES TS-440S ASB-0947 OPERATION WITH THE MC-85 TS-440S ASB-0973 PLL UNLOCK IN VCO'S DUE TO GLUE TS-440S ASB-0949 PROTECTING Q33 FROM SHORT ON REMOTE PLUG TS-440S ASB-0950 CASE SCREWS BINDING IN THE HEAT SINK TS-440S ASB-0948 NOTCH FILTER LOW FREQUENCY IMPROVEMENTS TS-450S ASB-0994 DISTORTED TX AUDIO WITH PACKET TERMINAL TS-450S ASB-1032 LOW MIC GAIN W/DSP-100 TS-450S ASB-1002 DISTORTED TX WITH PACKET TERMINAL TS-450S ASB-1036 PARTS CHANGES FOR DRIVER TRANSISTORS TS-450S ASB-0995 CALIBRATION CABLE CHANGE TS-450S ASB-1004 POOR TRANSMIT AUDIO FREQUENCY RESPONSE TS-450S ASB-1059 CHANGE OF NOISY ENCODER TS-50S ASB-1030 "HELLO" DISPLAYED DURING TRANSMIT TS-50S ASB-1035 ANTENNA LEAD WIRE CONNECTION TS-50S ASB-1044 MECHANICAL NOISE FROM FINAL UNIT TS-50S ASB-1015 LITHIUM BATT. REPLACMENT CAUTION TS-520 ASB-0842 REPLACEMENT FOR DS-1A IN TS820/TS520 TS-520 ASB-0002 NOVICE OPERATION - 75 WATTS TS-520 ASB-0052 SM-220/BS-5 SWEEP INTERFERENCE TS-520 ASB-0004 AM BROADCAST INTERFERENCE TS-520 ASB-0021 SERVICE NOTES TS-520 ASB-0063 IF OUT FOR SM-220 TS-520S ASB-0812 CW FILTER SELECT CONTROL TS-520S ASB-0043 -6VDC SUPPLY FAILURE TS-520S ASB-0046 CW FREQUENCY SHIFT TS-530S ASB-0848 LOW VOLTAGE SUPPLY / OPTIONAL IMPROVEMENTS TS-530S ASB-0878 IF UNIT Q2, Q7 PROTECTION TS-660 ASB-0856 MICROPROCESSOR LATCH-UP TS-690S ASB-1032 LOW MIC GAIN W/DSP-100 TS-690S ASB-0994 DISTORTED TX AUDIO WITH PACKET TERMINAL TS-690S ASB-0995 CALIBRATION CABLE CHANGE TS-690S ASB-1002 DISTORTED TX WITH PACKET TERMINAL TS-700A ASB-0027 9 VOLT REGULATOR REPLACEMENT TS-700A ASB-0020 SERVICE NOTES TS-700A ASB-0005 REPEATER OPERATION MODIFICATION (EUROPE) TS-820 ASB-0013 RIT MODIFICATION TS-820 ASB-0012 AUX BAND INSTALLATION (RX ONLY) TS-820 ASB-0014 MICROPHONE INPUT ATTENUATOR TS-820 ASB-0842 REPLACEMENT FOR DS-1A IN TS820/TS520 TS-820S ASB-0030 GENERAL ALIGNMENT PROCEDURE TS-820S ASB-0812 CW FILTER SELECT CONTROL TS-820S ASB-0009 SPEECH PROCESSOR ALIGNMENT TS-820S ASB-0954 TA7201P SUBSTITUTION PARTS KIT TS-820S ASB-0024 SERVICE NOTES TS-830S ASB-0840 INTERMITTANT FREQUENCY SHIFT TS-830S ASB-0857 TRANSMITTER "TALKBACK" FROM RF INTRUSION TS-830S ASB-0847 LOW VOLTAGE SUPPLY DRIFT/IMPROVEMENTS TS-830S ASB-0851 NOISE BLANKER IMPROVEMENTS / CROSS MODULATION TS-830S ASB-0837 OPERATION ON 240V AC TS-850S ASB-1049 CLICK NOISE WITH NOTCH ON TS-850S ASB-1046 S METER ADJUSTMENT TS-850S ASB-1034 NO AUDIO FROM VS-2 TS-850S ASB-1000 DISTORTED TX WITH PACKET TERMINAL TS-850S ASB-1006 LOW OR NO RECEIVE SENSISTIVITY/NO AUDIO TS-930S ASB-0886 INTERMITTENT TX POWER OUTPUT TS-930S ASB-0868 LOSS OF RX SENSITIVITY TS-930S ASB-0863 INCORRECT LINE VOLTAGE SETTING TS-930S ASB-0875 RX AUDIO OSCILLATION TS-930S ASB-0873 CW VBT - SIMPLIFIED ALIGNMENT TS-930S ASB-0879 ALC LEVEL DRIFT AT 28 MHZ TS-930S ASB-0884 15 MTR INTERNAL BEAT NOTE TS-930S ASB-0872 CW PITCH TONE SHIFT WHEN MONI SWITCH IS ON TS-930S ASB-0869 PLL UNLOCK / BLANK DISPLAY TS-930S ASB-0866 CW HETERODYNE TONE WITH VBT CONTROL TS-930S ASB-0881 POWER SUPPLY SURGE PROTECTION TS-930S ASB-0874 RF FEEDBACK WHEN USING EXTERNAL SPEAKER TS-930S ASB-0893 NOISY POWER SUPPLY FAN TS-930S ASB-0867 SSB TX AUDIO TONE QUALITY SN < 3080001 TS-930S ASB-0876 RF FEEDBACK INTO MIC CIRCUIT TS-940S ASB-0988 MRF-485 DRIVER TRANSISTOR CHANGES (BLUE DOT) TS-940S ASB-0918 SQUELCH SWITCHING NOISE SN < 711XXXX TS-940S ASB-0908 PLL UNLOCK DUE TO LOW LEVELS TS-940S ASB-0911 DELETED, SUPERCEDED BY #0917 TS-940S ASB-0909 AVR UNIT CAPACITOR CHANGE / FAILURE TS-940S ASB-0896 LCD CLOCK DISPLAY ERRATIC OPERATION TS-940S ASB-0912 TRANSMITTER HUM IN SSB TS-940S ASB-0907 ANTENNA TUNER RELAY DAMAGE / MODIFICATION TS-940S ASB-0913 SIGNAL TO NOISE RATIO IMPROVEMENT WITH NB TS-940S ASB-0917 VCO/CARRIER TO NOISE RATIO IMPROVEMENTS TS-940S ASB-0921 SSB TALK POWER IMPROVEMENT S/N 601XXX-708XXX TS-940S ASB-0951 ERRATIC DISPLAY (REMOVE THE ROM SOCKET) TS-940S ASB-0910 AGC CIRCUIT IMPROVEMENTS TS-940S ASB-0900 PLL UNLOCK TS-950 ASB-1020 INFINITE SWR AT BEGINNING OF TRANSMISSION TS-950 ASB-1021 SMOKE FROM ANTENNA TUNER TS-950 ASB-1019 LOW PWR.OUTPUT AFTER TEMPERATURE PROTECT TS-950 ASB-1017 NOISE WHEN NB1 ON FOR SUB RECEIVER TS-950 ASB-1018 14.200 MHZ TRANSMIT SPUR S/N <1010XXX TS-950 ASB-1016 HUM WITH MONITOR ON S/N < 1060XXX TS-950S ASB-0991 REAR COOLING FAN / POWER DOWN TS-950S ASB-0990 FINAL AMP.BIAS CIRCUIT CHANGE TS-950SD ASB-1024 TRANSMIT SPURS TS-950SD ASB-0960 LOW VS-2 AUDIO TS-950SD ASB-0959 SPEECH PROCESSOR NOISE TS-950SD ASB-0961 N.B.GATE SWITCHING NOISE TS-950SD ASB-0982 TX IMAGE ON 18.115 MHZ CAUSING DISTORTION TS-950SD ASB-1052 SPUR ON 18.115 TS-950SD ASB-0964 TWO SECOND TX DELAY WITH MONI SWITCH ON TS-950SD ASB-0963 RX DIGITAL NOISE ON 10 & 15 METERS TS-950SD ASB-0962 RX-TX SWITCHING TIME WITH AMP TS-950SD ASB-0984 80 METER SPURIOUS EMMISION ON 80 METERS TS-950SD ASB-0971 RECEIVER NOISE WITH VOLUME AT MINIMUM TS-950SDX ASB-1007 SPEECH PROCESSOR ADJ / EXCESSIVE NOISE TS-950SDX ASB-1009 3RD ORDER IMD IMPROVMENTS TS-950SDX ASB-1047 CARRIER POINT ADJUSTMENT TS-950SDX ASB-1043 INSTALLATION OF YG-455S1 TS-950SDX ASB-0998 RANDOM TRANSMIT WHEN MODE IS CHANGED TS-950SDX ASB-0999 NO BEEP IN HEADPHONE WHEN USING MONO PHONES TS-950SDX ASB-1026 CLICK NOISE WHEN NOTCH IS ON TS-950SDX ASB-1050 SUB BAND RESIDUAL NOISE TS-950SDX ASB-1001 DISTORTED DRU-2 TRANSMIT AUDIO TS-950SDX ASB-1012 KEY CLICK WITH BUG TYPE KEY TS-950SDX ASB-1053 CHANGE OF FINAL GATE RESISTOR TYPE TS-950SDX ASB-1045 NO VFO B AFTER SPLIT OPERATION / MICRO CHANGE TS-950SDX ASB-1003 K1EA VER.8 PROGRAM PROBLEMS - NEW EPROM TW-4100A ASB-0926 REPEATER STOP SCAN ON THE UHF BAND VFO-120 ASB-0862 DIAL LAMP SWITCHING CIRCUIT VFO-230 ASB-0838 OPERATION ON 240V AC VOX-3 ASB-0015 SENSITIVITY AND DELAY VS-2 ASB-1034 NO AUDIO FROM VS-2 MANY ASB-0941 SERVICE MANUAL RX SECTION LEVEL DIAGRAMS MANY ASB-0942 SERVICE MANUAL TX SECTION LEVEL DIAGRAMS MANY ASB-0905 COAX CABLE WITH PLUG LIST MANY ASB-0049 OPTIONAL FILTER LIST MANY ASB-1055 USE OF HEATSINK COMPOUND DELETED ASB-0835 DELETED DELETED ASB-0800 DELETED DELETED ASB-0001 DELETED INTERNAL ASB-0943 DELETED INTERNAL ASB-0894 DELETED INTERNAL ASB-0899 DELETED INTERNAL ASB-0890 DELETED INTERNAL ASB-0979 DELETED INTERNAL ASB-0898 DELETED INTERNAL ASB-0940 DELETED INTERNAL ASB-0915 DELETED INTERNAL ASB-0889 DELETED INTERNAL ASB-0955 DELETED INTERNAL ASB-0924 DELETED INTERNAL ASB-0969 DELETED INTERNAL ASB-0923 DELETED