PDA

View Full Version : Maintenance, Troubleshooting & Repair



Pages : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 [33] 34 35 36 37 38 39 40 41 42 43 44 45 46

  1. finding/replacing filter capacitors....
  2. Peavey VTM 120-- please help
  3. FireFly Tube Amp Oscillation
  4. Electrovoice 81PMX Powered Mixing Board
  5. Blown trace on PCB
  6. Ampeg V4 distorting when increasing volume
  7. Princeton Reverb II switching
  8. 5E3 Deluxe Problems
  9. Valve Junior V3 Head input mod gone wrong...
  10. trouble shoot traynor yrm-1 reverb master
  11. Bugera 333Xl 212 Huge Problem
  12. Warning about amps with switching power supplies
  13. Fender Sidekick Reverb 15 repair - also, schematic?
  14. Just a compliment to you
  15. Ampeg V4 cap job using non-original value multi-caps...
  16. Airline 62-9015A
  17. Got a Bias Meter, now what!? Calling all experts...
  18. Marshall MG100HDFX Volume Drop
  19. Dead Line 6 Spider II HD
  20. Peavey Special 112 problem in effects loop
  21. Polytone Mini Brute
  22. Fender Hot Rod Deluxe: Sound comes and goes intermittently
  23. 36 watt (marshall 18 modified) neg. feedback
  24. Peavey Classic 100 help
  25. Hummmmmmmmm.....
  26. Marshall DSL201 with low volume
  27. Ampeg transformer question.
  28. PV Mark IV 16ch head scratcher
  29. Sovtek Mig-60 trouble
  30. Blues Deluxe part numbers
  31. FX loop issues
  32. Peavey classic 50/50 amp head
  33. Finally got a Compu Bias... need help interpreting data for Fender Princeton
  34. Grid Wires??
  35. Blues Junior Hum Problem
  36. Ampeg Rocket bias problem
  37. 2001 Fender Super Reverb
  38. wanted- low voltage (600vct or less) tremolux PT
  39. Fender Super Farting?
  40. Gibson GA40 RVT Cutting Out
  41. Legion Sound LSP-8 - any info on schemos?
  42. Fender M-80 Chorus
  43. 5e3 runaway
  44. Fender Twin transformer runs hot?
  45. Peavey Impuls disassembly?
  46. power cap polarity
  47. Acoustic 370 oscillation in power stage
  48. Need Help with Marshall Mosfet
  49. 1972? Orange PA120 (Warning BIG PICS)
  50. 7 pin midi
  51. How do I bias a Peavey Windsor Head
  52. JCM 900 with loud channel switching pop.
  53. Peavey 5150 problem
  54. Will badly biased tubes take out an OT?
  55. who has NOS jacks?
  56. Ampeg B2-RE bass amp DC on output
  57. Old Carvin Pro Bass II 300 pops and crackles
  58. Acoustic B100H Schematic?
  59. AB763 Showman Replacement PT Info?
  60. Roland Jazz Chorus-120
  61. Vibrolux 6G11a low voltage. Replaced transformer. please help..
  62. Deluxe Reverb Distortion
  63. Vox AC30 RI head with AC on the B+
  64. Cross referencing-finding parts
  65. Marshall TSL lead channel not working
  66. Furman PL-8 Series II
  67. Hartke 3500 transformer supplier?
  68. Marshall 201 footswitch
  69. BDW83D and BDW84D TO-3P Equivalents ???
  70. speaker polarity
  71. hartke 3500 amp .. problem blowing speakers
  72. Anybody got a pic of the underside of a Fender Bandmaster Power Supply board?
  73. Blues Junior distortion
  74. Carvin Stereo Tube 100 (TS100)
  75. PEAVEY CLASSIC 30 HUM whilst playing
  76. 50 Caliber reverb wire
  77. High-pitch noise in modded Peavey Classic30 (oscillation?)
  78. Orange OR120
  79. fender ultra chorus volume problem
  80. Reverb/Noise issues on Silverface Princeton Reverb
  81. Help With A JCM2000 TSL 122!
  82. Mesa 50 Caliber reverb wire
  83. Marshall 8100 Valvestate Volume issue on Distortion channel
  84. Marshall G80R CD lights up no output
  85. Dsl 100 Preamp hum
  86. Another DSL Marshall problem..
  87. Low Bias Voltage on Crate TV-120
  88. SVT 4 Pro issues
  89. marshall 20/20 el84 problem :-(
  90. SVT-3 PRO fan problem
  91. Ampeg Smokey Burning and Blue Flashes!!!
  92. want to help me help kids? (amp repair)
  93. ampeg reverbrocket 2 voltage chart wanted
  94. What Voltage should my Bias be set at?
  95. Fender Blues Deluxe Reissue completely dead
  96. Peavey Microbass
  97. matched tube question
  98. Maximum voltage on oscilloscope
  99. Vibro-King EL84 Modification?
  100. Fender Princeton Chorus question
  101. ampeg reverbrocket question
  102. Multivox Tape Echo (just like Roland 201) has low output distorted echo
  103. deville 410 loud hum
  104. new guy here, blues deville problem!!
  105. mesa boogie ground switch
  106. Fender Deville 212 - Help!
  107. Bad solder joints????
  108. Acoustic 470 cuts out.
  109. Peavey Mark IV: dc on the speaker and preout jacks
  110. newer tube/SS amps - any techs not wanting to fix them?
  111. Crate cabinet inside wiring
  112. Ampeg B 100R -15dB problem
  113. Peavey KB60 driver transistors
  114. Big trouble with modded Peavey C30
  115. Peavey Vintage
  116. never changed a fuse b4fender princeton 112
  117. I screwed this One up!
  118. Kay model 606 tube amp help needed
  119. JMP - missing resistors
  120. Marshall DSP 201
  121. Peavey VK100 6v heaters
  122. NFB question
  123. Crate VC 5310 gone bad!!! Please help!!
  124. Crate Power Resistor Question
  125. TSL602 Low gain
  126. Marshall MB450H popping on shut down
  127. Harmonic Tube(s) with attenuator
  128. valvastate 8008 blowing secondary fuses
  129. Volume issue
  130. Dean Markley DMC 80 Power Transformer Secondary AC Voltage?
  131. '59 Bassman Clone Presence Control Problem
  132. super reverb intermittant fuse blowing
  133. Kay 730-c upgrade for guitar
  134. TSL100 bias again
  135. Randomly popping fuse
  136. Power Supply Cap's, Options ???
  137. 5E3 hums when connected w/ TTE
  138. ok to pull tubes?
  139. Peavey Bandit 112 transtube 2001 sheffield spkr
  140. 1980 Princeton Reverb Vibrato Always On? HELP!
  141. Friends in the news
  142. Heater voltage too low on Fender Showman
  143. master reverb 30 starting to choke
  144. Mesa F-50 noise on clean channel
  145. Marshall JCM 2000 repair issues
  146. Fender lamps
  147. Deluxe reverb reissue doesn't like loud
  148. Vox AC30TB gain problem
  149. Chassis Clips
  150. Peavey 5150 combo amp fuse?
  151. Marshall JCM: Loud hum goes away when I touch the chassis
  152. Ampeg SVT-6 Pro Random Noises
  153. Behringer BXL 1800A
  154. General capacitor value (swapping) and function question
  155. Gibson G-10 (solid state) Output Stage Problem
  156. Help: Fender Pro Junior Undertones?
  157. Marshall dsl 201 combo
  158. Fender 75 Tube order?
  159. ampeg SVT noise issue
  160. standby switch
  161. Holden Slave mods
  162. Peavey VYPYR 15
  163. Fender Hot Rod Deville: clean channel switching problem
  164. How to get started with an oscilloscope?
  165. Marshall TSL 100 Issue
  166. Ampeg v4 trouble that needs to be shot
  167. crate bl120 crashes
  168. No sound from Vintage Deluxe Reverb
  169. Is a 6G6-A Bassman quiet for it's power?
  170. JCM2000 DSL pcb pots?
  171. crate v33h channel switching pop noise
  172. Ashdown mag 300 combo amp, quit on me.
  173. Ampeg B15S humming
  174. valve brands for fender amps?
  175. power loss in '66 blackface princeton n/r
  176. Tube burning station
  177. Fender Pro 185 Footswitch / Reverb Problem
  178. Cracking noise Classic 30/advice on replacement
  179. Help in removing master volume from silverface Twin
  180. Is ther an easy way to diagnose screen grid resistors?
  181. Op Amp tester
  182. SWR schem?
  183. Roland JC-60 input jack mystery - HELP!?
  184. Fuchs Amp Sizzles, Ground Noise
  185. JCM 2000 Reverb
  186. Marshall AVT150 problems
  187. '65 Twin Reverb R-Issue B+ noise problem
  188. Mesa Mark iii
  189. GK knobs WTF??
  190. ADA MicroTube 200 smoking issues
  191. Music man circuit breaker
  192. Dart amp
  193. Redplating on one tube
  194. Koch Twintone
  195. High-Pitched Squealing at High Volumes
  196. Ampeg SVP-1500 Protecting
  197. Super Reverb (no reverb)
  198. Ampeg B12XT Motorboating on Intensity
  199. Blown part in Fender Blues Deluxe Reissue
  200. 1980 twin reverb trouble shoot
  201. This may be a stupid question, but..
  202. need some help please!
  203. Peavey C30: moan from the speaker
  204. Fender PS 160 Vocal Amp Trany problems???
  205. New to forum.. please help
  206. soldering iron question.
  207. switch-on transient in solid-state amp
  208. JCM 800 poweramp not fully functioning
  209. Any large retailers still sell fuses???
  210. 1975 Twin Reverb - Which tubes?
  211. Vox Valvetronix - How the F*** do I get this thing apart?
  212. Peavey Deuce: Power Supply Board Component
  213. Crown CE2000....anyone actually repairing this junk?
  214. Acoustic 370 Repair - Atlanta, GA area
  215. Silvertone 1485 dual OT?
  216. watkins tremelo amp (1960)
  217. Fender FM65 DSP lockup
  218. Heater voltages too high?
  219. Ampeg SVT Classic goes into standby on its own
  220. magnatone 213 finished - vibrato doesn't work
  221. Sudden loud buzzing on Ashdown bass amp
  222. Marshall 8100 head hums!
  223. Old Symphonic 16-S Record Player Problems
  224. Bandmaster Reverb vibrato
  225. bandmaster reverb won't adjust
  226. Princeton 65: what to make of TP values
  227. Peavey C30 squeals
  228. M-80 popping buzzing
  229. Is This a Bias Trim Pot?
  230. Another AVT150 TDA7293 problem - please help
  231. Biasing Question: Marshall JCM602
  232. Fender Champion 600 On/off toggle switch
  233. Good book on solid-state troubleshooting and repair
  234. Bad Cat Panther with creeping bias
  235. No chorus effect on JC-120
  236. Engl Powerball
  237. Looking for a Ampeg VH-140C schematics
  238. Dynacord Eminent II
  239. Behringer PMX2000 Fried!
  240. Peavey 5150II Tube Question
  241. Holden Wasp 4xKT88 power tube arcing.
  242. Mark VIII Bass Head
  243. filter cap failure - gradual or sudden?
  244. pcb input jack replacement
  245. Peavey Classic 20 transformer source
  246. High-pitch noise in old tube amp (oscillation?)
  247. JTM Blowing Main Fuse?
  248. Marshall MG100HDFX head broken input jack
  249. Disharmonic distortions
  250. Matching speaker Ohms and amp Ohms