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Text File  |  1990-02-09  |  14KB  |  232 lines
  1. KENWOOD SERVICE BULLETINS BY MODEL               11/09/89
  2.  
  3.  
  4. MODEL               SB #           TITLE
  5.  
  6. AT-930              877            SERVICE NOTES
  7. BS-8                41             ALIGNMENT WITH TS-180S
  8. DG-1                19             NEW DISPLAY TUBE
  9. DG-1                26             SERVICE NOTES
  10. DG-1                53             STANDARD SERVICE
  11. DG-5                25             REPAIR
  12. DG-5                28             REPAIR NOTES
  13. DG-5                29             THEORY OF OPERATION
  14. DG-5                54             STANDARD SERVICE
  15. DK-520              62             DG-5 USE WITH TS-511/TS-900/T/R-599
  16. DS-2                842            REPLACEMENT FOR DS-1A
  17. HMC-1               914            NOT TO BE USED WITH TH-205AT/TH-215A
  18. MC-45               35             MODIFICATION FOR USE WITH TR-7400A
  19. MC-46               852            DTMF OPERATION WITH OLDER EQUIPMENT
  20. MC-55               953            CHANGE IN MIC ELEMENT (T91-0328-08)
  21. PS-430              938            VOLTAGE INCREASE WITH TH-205/215
  22. PS-50               916            IMPROVED VOLTAGE SURGE PROTECTION
  23. QR-666              3              VFO STABILITY
  24. R-1000              805            MUTING
  25. R-1000              813            AGC AM BANDWIDTH CHANGES
  26. R-1000              823            RF ATTENUATOR 10dB STEP OPTION
  27. R-5000              919            NO FREQ CHANGE BY COMPUTER INTERFACE
  28. R-599A/D            8              SERVICE NOTES
  29. R-599A/D            31             REMOVING CB BAND
  30. RC-10               922            HANG UP TIME/TIMEOUT TIMER SETTINGS
  31. RC-10               927            ALTERNATOR NOISE
  32. RM-76               33             FREQUENCY ERROR WITH TR-7600/7625
  33. RM-76               59             BATTERY BACK-UP POWER
  34. RM-76               802            MICROPROCESSOR FAILURE
  35. SM-220              57             SHIELD INSTALLATION
  36. SM-220              66             FEEDBACK FROM BS-8
  37. SMC-25              864            MODIFICATION FOR USE WITH THE TR-       
  38.                                    2400
  39. T-599A/D            7              SERVICE NOTES
  40. T-599D              6              CHAIN DRIVE MODIFICATION
  41. T-599D              17             REDUCING 120Hz HUM
  42. TH-205              945            SIGNAL TO NOISE RATIO IMPROVEMENT
  43. TH-205/215          920            PROTECTION FUSE REPLACEMENT WITH        
  44.                                    DIODE
  45. TH-205/215          944            VOLUME/SQUELCH CONTROL IMPROVEMENT
  46. TH-215/415          946            TX SIGNAL TO NOISE RATIO IMPROVEMENT
  47. TH-25/45            932            W/TSU-6 TONE ALERT IMPROVEMENTS
  48. TH-25/45            939            AUTOMATIC POWER OFF
  49. TM-201/401          880            INCREASED TX AUDIO
  50. TM-211/411          897            AF GAIN CONTROL PART CHANGE
  51. TM-221A             933            NO TX IN HIGH POWER DUE TO VOLTAGE      
  52.                                    DROP
  53. TM-221A             934            FINAL MODULE HINTS
  54. TM-2550             904            DCL CALL SIGN DATA
  55. TM-2570             906            LOW TX POWER OUTPUT
  56. TM-321A             935            LOSS OF TX AUDIO WITH MC-48B
  57. TM-3530A            925            NOISY TRANSMIT
  58. TM-411              892            LOW/NO RECEIVER SENSITIVITY
  59. TM-721A             930            MICROCOMPUTER LOCK-UP
  60. TM-721A             931            LOW/NO VHF TRANSMIT POWER
  61. TM-721A             936            S-METER DEFLECTION DUE TO PULSE         
  62.                                    NOISE
  63. TM-721A             937            AF PA WHITE NOISE WITH SQUELCH ON
  64. TR-2200A            11             ANTENNA ADAPTER
  65. TR-2200A            22             SERVICE NOTES
  66. TR-2400             58             TONE ENCODER RFI
  67. TR-2400             807            OPTIONAL CHARGE INPUT PROTECTION
  68. TR-2400             808            OFFSET FAILURE
  69. TR-2400             809            UNWANTED NOISE: TONE OR BURST AT TX
  70. TR-2400             810            DISPLAY OR KEYBOARD TROUBLE
  71. TR-2400             811            RX LOW INTERMITTENT OR DISTORTED
  72. TR-2400             814            UNLOCK
  73. TR-2400             815            PULSE NOISE
  74. TR-2400             818            SCRATCHY TX
  75. TR-2400             819            VOLUME CONTROL REPLACEMENT
  76. TR-2400             822            BATTERY CHARGER FAILURE
  77. TR-2400             830            TX NOISE
  78. TR-2500             858            RX IMD IMPROVEMENT
  79. TR-2600A            901            PLL UNLOCK (TROUBLESHOOTING)
  80. TR-2600A            903            PLL UNLOCK
  81. TR-7200A            23             SERVICE NOTES
  82. TR-7400A            10             FINAL UNIT ARCING
  83. TR-7400A            18             SERVICE NOTES
  84. TR-7400A            32             CHANGES IN PD UNIT
  85. TR-7400A            34             METER LAMP LONGER LIFE
  86. TR-7600/7625        39             ALTERNATOR WHINE
  87. TR-7600/7625        45             AUDIO TONE ON TX
  88. TR-7600/7625        50             OPTIONAL CERAMIC FILTER
  89. TR-7600/7625        65             RF POWER MODULE RETURNS (OBSOLETE)
  90. TR-7600/7625        806            MEMORY BATTERY BACK-UP
  91. TR-7625             804            INTERMITTENT TX
  92. TR-7625             820            FINAL MODULE REPLACEMENT
  93. TR-7625             826            HYBRID AMPLIFIER MODULE SUBSTITUTION
  94. TR-7730             854            TX FREQUENCY RESPONSE VOICE OR DTMF
  95. TR-7800             828            TONE PAD CONVERSION FOR 4th COLUMN      
  96.                                    FUNCTION
  97. TR-7800             829            MEMORY LOSS SUPERSEDED BY SB-861
  98. TR-7800             834            PULSE NOISE
  99. TR-7800/7850        860            MEMORY CH. 7 INDICATOR ERRATIC
  100. TR-7800/7850        861            MEMORY IMPROVEMENTS
  101. TR-7800/9000        833            OPTIONAL CERAMIC FILTERS
  102. TR-7850             846            RF LED METER (LOW READINGS)
  103. TR-7930/7950        870            RX INTERFERENCE
  104. TR-8300             16             ALIGNMENT
  105. TR-8400             843            SUB-AUDIBLE ENCODER INSTALLATION
  106. TR-8400             845            RX INTERNAL SPURIOUS SIGNALS
  107. TR-8400             853            TX FREQ RESPONSE VOICE OR DTMF
  108. TR-8400             855            TRANSMIT DELAY TIME
  109. TR-9000             824            CW/SSB TX INSTABILITY
  110. TR-9000             825            TX PULSE NOISE IN SSB
  111. TR-9000             849            TRANSMITTER SIDEBAND CARRIER BALANCE
  112. TR-9000             859            TEMPERATURE STABILITY IMPROVEMENT
  113. TR-9130             871            LOW DRIVE LEVEL
  114. TS-120S             37             VOX OPERATION PICK-UP TIME
  115. TS-120S             38             FINAL TRANSISTOR REPLACEMENT
  116. TS-120S             40             ANTENNA INPUT TRANSFORMER               
  117.                                    REPLACEMENT
  118. TS-120S             48             HUM IN SSB TX
  119. TS-120S             51             FINAL PROTECTION
  120. TS-120S             60             REPAIR NOTES
  121. TS-120S             64             FULL CW OUTPUT IN SSB MODE (USE SB-     
  122.                                    844)
  123. TS-120S             801            TX OSCILLATION (USE SB-844)
  124. TS-120S             816            BAND PASS FILTER CHANGE
  125. TS-120S             827            VFO STABILITY
  126. TS-120S             821            TX OSCILLATION (USE SB-844)
  127. TS-120S             831            ANTENNA INPUT TRANSFORMER               
  128.                                    REPLACEMENT
  129. TS-120S             832            FULL CW OUTPUT IN SSB MODE (USE SB-     
  130.                                    844)
  131. TS-120S             844            TX OSCILLATION
  132. TS-120S/180S        44             PHONE PATCH TERMINAL ADDITION
  133. TS-140S             928            INTERMITTENT LOSS OF TRANSMIT POWER
  134. TS-140S             929            MOMENTARY TX WHEN VOX IS TURNED ON
  135. TS-180S             36             DFC HUM WITH PS-30
  136. TS-180S             42             IF #2 OUTPUT LEVEL CHANGE
  137. TS-180S             47             INCREASE OF RX AUDIO OUTPUT
  138. TS-180S             55             LOW 40 MTR ALC
  139. TS-180S             56             DFC
  140. TS-180S             61             TROUBLE SHEET
  141. TS-180S             67             DFC INSTABILITY
  142. TS-180S             803            CW DELAY DURING VOX MEMORY OPERATION
  143. TS-180S             817            USE WITH A LINEAR AMPLIFIER
  144. TS-180S             839            VFO STABILITY
  145. TS-180S             850            LOW PASS FILTER OPTIONAL CHANGES
  146. TS-430S             865            500KHz HETERODYNE
  147. TS-430S             882            NOTCH CONTROL
  148. TS-430S             883            AM WIDE/NARROW FILTER SELECTION
  149. TS-430S             885            RECEIVER INTERNAL BEAT
  150. TS-430S             887            NOISE BLANKER IMPROVEMENTS
  151. TS-430S             888            INTERMITTENT PLL UNLOCK IN FM/AM
  152. TS-430S             891            PLL UNLOCK AT HIGH TEMP. (USE SB-       
  153.                                    895)
  154. TS-430S             895            PLL UNLOCK AT HIGH TEMPERATURES
  155. TS-430S             902            LOW/INTERMITTENT RX
  156. TS-440S             947            OPERATION WITH THE MC-85
  157. TS-440S             948            NOTCH FILTER LOW FREQUENCY              
  158.                                    IMPROVEMENTS
  159. TS-440S             949            PROTECTING Q33
  160. TS-440S             950            CASE SCREWS BINDING IN THE HEAT SINK
  161. TS-440S             952            INTERMITTENT OPERATION (REMOVE          
  162.                                    SOCKET)
  163. TS-520              2              NOVICE OPERATION (75 WATTS)
  164. TS-520              4              AM BROADCAST INTERFERENCE
  165. TS-520              21             SERVICE NOTES
  166. TS-520              63             IF OUTPUT FOR SM-220
  167. TS-520(S)           46             CW FREQUENCY SHIFT
  168. TS-520(S)           52             BS-5 SWEEP INTERFERENCE
  169. TS-520S             43             -6VDC SUPPLY FAILURE
  170. TS-520S/820S        812            CW FILTER SELECT CONTROL
  171. TS-530S             848            LOW VOLTAGE SUPPLY OPTIONAL             
  172.                                    IMPROVEMENTS
  173. TS-530S             878            IF UNIT Q2-Q7 PROTECTION
  174. TS-660              856            MICROPROCESSOR LATCH-UP
  175. TS-700A             20             SERVICE NOTES
  176. TS-700A             5              REPEATER MODIFICATION (EUROPE)
  177. TS-700A             27             9 VOLT REGULATOR REPLACEMENT
  178. TS-820              12             AUX BAND INSTALLATION (RX ONLY)
  179. TS-820              13             RIT MODIFICATION
  180. TS-820              14             MICROPHONE INPUT ATTENUATOR
  181. TS-820S             9              SPEECH PROCESSOR ALIGNMENT
  182. TS-820S             24             SERVICE NOTES
  183. TS-820S             30             GENERAL ALIGNMENT PROCEDURES
  184. TS-820S             954            TA7201P SUBSTITUTION PARTS KIT
  185. TS-830S             837            OPERATION ON 240V AC
  186. TS-830S             840            FREQUENCY SHIFT
  187. TS-830S             847            LOW VOLTAGE SUPPLY OPTIONAL             
  188.                                    IMPROVEMENTS
  189. TS-830S             851            NOISE BLANKER OPTIONAL IMPROVEMENTS
  190. TS-830S             857            TRANSMITTER "TALKBACK"
  191. TS-930S             863            INCORRECT LINE VOLTAGE SETTING          
  192.                                    (OBSOLETE)
  193. TS-930S             866            CW HETERODYNE TONE
  194. TS-930S             867            SSB TX TONE QUALITY
  195. TS-930S             868            LOW RX SENSITIVITY
  196. TS-930S             869            PLL UNLOCK
  197. TS-930S             872            CW PITCH TONE SHIFT
  198. TS-930S             873            CW VBT
  199. TS-930S             874            RF FEEDBACK
  200. TS-930S             875            RX AUDIO OSCILLATION
  201. TS-930S             876            RF FEEDBACK INTO MIC CIRCUIT
  202. TS-930S             879            ALC LEVEL DRIFT 28 MHz CW
  203. TS-930S             881            POWER SUPPLY SURGE PROTECTION
  204. TS-930S             884            15 MTR INTERNAL BEAT NOTE
  205. TS-930S             886            INTERMITTENT TX POWER OUTPUT
  206. TS-930S             893            NOISY POWER SUPPLY FAN
  207. TS-940S             896            LCD CLOCK DISPLAY ERRATIC OPERATION
  208. TS-940S             900            PLL UNLOCK
  209. TS-940S             907            ANTENNA TUNER RELAYS
  210. TS-940S             908            PLL UNLOCK
  211. TS-940S             909            AVR UNIT CAPACITOR CHANGE
  212. TS-940S             910            AGC CIRCUIT IMPROVEMENTS
  213. TS-940S             912            TRANSMITTER HUM IN SSB
  214. TS-940S             913            SIGNAL TO NOISE RATIO IMPROVEMENT
  215. TS-940S             917            VCO CARRIER TO NOISE RATIO              
  216.                                    IMPROVEMENT
  217. TS-940S             918            SQUELCH SWITCHING NOISE
  218. TS-940S             921            SSB TALK POWER IMPROVEMENT
  219. TS-940S             951            ERRATIC DISPLAY (REMOVE SOCKET)
  220. TW-4100A            926            REPEATER STOP SCAN ON THE UHF BAND
  221. VFO-120             862            DIAL LAMP SWITCHING CIRCUIT
  222. VFO-230             838            OPERATION ON 240V AC
  223. VOX-3               15             SENSITIVITY AND DELAY
  224.                     49             UHF/VHF OPTIONAL FILTER LIST
  225.                     905            COAX CABLE W/PLUG LIST
  226.                     941            SERVICE MANUAL RX SECTION LEVEL         
  227.                                    DIAGRAMS
  228.                     942            SERVICE MANUAL TX SECTION LEVEL         
  229.                                    DIAGRAMS
  230.  
  231.