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

  1. Sunn Beta Bass steady-rate popping
  2. Mesa subway rocket loud hum
  3. Ashdown Klystron 500 blown fuse
  4. Traynor YGM 3-prong conversion
  5. Hot Rod Deluxe Oscillation.
  6. Marshall JCM800 100watt super bass clone
  7. Engl Raider 100 PT - learning the hard way
  8. Ampeg TM-1 Optoisolator
  9. Marshall AVT2000: DFX function completely broken
  10. Smoke from Line 6 HD150
  11. Low volume problem, Airline GIM 9011A
  12. Bugera 333XL problems with Crunch and Lead Channel
  13. Vintage Amp: Service or not?
  14. Eden WT-800 low/distorted output
  15. Soldering headache.
  16. motorboating?
  17. Fender passport repair
  18. Roland Jazz Chorus 90 Buzz
  19. Reverb Tank question...
  20. Red Knob Twin hum until V9 removed
  21. How can I find out the output resistance/ohms of my amp? Gibson GA77RET
  22. Blues junior v5 running extremely hot after mods
  23. SVT Primary Impedance?
  24. What do you offer in a service?
  25. bias Mv for EVH III 100 watt head?
  26. Bad amp tech's !!!!
  27. preamp section not working on LABSERIES L3
  28. Crate Gremlins
  29. Dummy Load Help
  30. eden wt 400 power board
  31. Adding a Tube Recto? WEM Dom amp.
  32. Univox U-1101
  33. Mesa Tremoverb EQ change when using reverb
  34. Fender Hot Rod Deluxe Problem
  35. continuous power handling
  36. 5150 Block Letter with a strange Bias Mod?
  37. WEM Dominator/ Ch2 not working.
  38. Gibson 20-T squeal
  39. Replacing 2 prong power cord in vintage amp
  40. Fishman Loudbox Performer Heat issues.
  41. oil problem
  42. Variable Capacitor in '60s Airline Amp
  43. Ampeg BA115 very loud humming sound
  44. Enzo
  45. Link ch1 to MV? [ Crate Bv-omfg]. Plan B!
  46. Workman Transitest
  47. nevermind...found it
  48. Cabinet for Deluxe Reverb AB763 Combo - Europe based supliers
  49. Peavey DTH 218 sub
  50. Crackling
  51. Aguilar DB750 trouble!
  52. Sovtek MIG50 odd power tube draw
  53. Ampeg SVT 4Pro equalizer circuit problem
  54. ROLAND JC120
  55. Harbinger HP215 schematic needed
  56. Marshall JCM2000 DSL100
  57. Legend A30 humming
  58. New Weber Legacys in Hot Rod Deville - Does this look right....??
  59. JMF Spectra 30-T Bias issues
  60. Bandmaster AB763 Problem
  61. Ampeg V-6B Transistor Substitutions
  62. Tweed Deluxe Clone sounds Thin and Weak Help Please!
  63. Peavey 450 Tour
  64. Peavey Session 400 Headroom
  65. 70's Peavey Bass 400 module problem
  66. Mesa still Blowing fuses.
  67. Bias voltage too low...?
  68. Sovtek MIG 50 blowing fuses
  69. epiphone triggerman 100h weird problem
  70. Reverb "hum" in Marshall VS100
  71. dumb question
  72. Orange Tiny Terrorist
  73. Paul pepco model 201 isolation transformer
  74. Intermittent red plating on standby
  75. Traynor YBA-1 issues
  76. 60 hz hum
  77. Help with a 68 Sunn Sentura II
  78. Vintage Traynor YGM-3 Tremolo Issue
  79. Proper posture for bench repair?
  80. Volume Potentiometer - RCF ARTxxx
  81. anyone with screen grid voltage higher than plate voltage in Deluxe reverb?
  82. BIAS Deluxe Reverb High B+ AB763
  83. [ 'Dead CRATE BV- need help! ]
  84. Trace AH500 and the rare Mosfets
  85. newish Mesa DR
  86. Well THAT was different
  87. Fender Hot Rod DeVille 2x12 Low Volume
  88. Elementary Fender Twin Bias adjustment
  89. Fishman Loudbox mini schem?
  90. Nomad 45: round 2
  91. Your shop rate and poilicies
  92. Egnater Rebel 20 power with no sound
  93. Mesa MK II excessive noise.
  94. Really unbalanced phase inverter?
  95. MESA Express 5:25 - high b+, high current draw on power tubes - normal?
  96. High B+ GZ34 deluxe reverb
  97. Weber 6H50 "Hiwatt" style amp. Howl and presence control issues
  98. What causes too high plate voltage?
  99. Orange Rocker 30, not so 30...
  100. SF Twin 135 speaker output wiring
  101. Problems with Laney DB300C bass amp
  102. JCM 800 Output Transformer
  103. Bogner Alchemist Schematic
  104. Kustom Lead-I Effects Not Working
  105. 70's Ampeg V2: need some maintenance help
  106. Hughes & Kettner Trilogy Head
  107. Ampeg VL-1002 fx loop problem
  108. Heathkit TA-17: power-stage resistor keeps blowing
  109. crate gx130c resistor overheating
  110. Testing a capacitor with an ohmmeter
  111. Ampeg SVT Trio intermittently dropping out.
  112. i have a crate gx130c resistors seem too hot
  113. 5u4gb or Gz34 Tube Rectifier and Hammond Transformers Deluxe ab763
  114. Bassman AB165 burned filament resistors
  115. Buzz if guitar near amp (not speaker) - normal?
  116. 70's Twin Reverb loud circuit disturbance during warmup
  117. Kitty Hawk Junior Hissy Fit!
  118. Vox AD30VT - is it too hot?
  119. need advice to spec power transformer
  120. Higher than expected current draw - Fender Pro Reverb Amp
  121. Deluxe AB763 buss bar grounding
  122. Marshall short
  123. Hammond 291BEX heater winding grounding
  124. Mackie SR1530 no output
  125. Marshall JCM800 Bias Problem
  126. Carvin X-60E problem - Loud distortion howling noise
  127. Deluxe Reverb AB763
  128. Blown 1 OHM current-sense resistors
  129. Acoustic G60T warbling decay
  130. Ampeg BA115-hpt amp. Mains hum + signal breaking up - but only when hot...
  131. Fender Super Six Reverb Re-Cap Question
  132. 18 watt plexi with 6v6's has squealing problem?
  133. CRATE BV amp Ch1 prob- "Crunchy" Noises.
  134. 76 ampeg V4 low output
  135. Crate Vintage Club 50 "cutting out".
  136. Effects Loop Mod Question
  137. Crate PA-B8350 Mains fuse size or schematic
  138. Acoustic 122 restoration
  139. Acoustic 270 tremolo
  140. Transformer making this (recorded) sound. Intermittent buzzing. Caps?
  141. Mesa Nomad 45 heater issue?
  142. Haze 15 - Noise
  143. Power tube bias and OT load...
  144. Jazz Chorus 77 powers up but no sound
  145. Crossover/Horn Trouble!
  146. Shot in the dark looking for schematic for old JVC Integrated Amp
  147. Decipher Marshall scem
  148. MF350 Mode Four musings, thoughts, comments
  149. Working through a Ampeg Super Echo Twin ET-2b
  150. Princeton 112 Plus - Shutdown MOD
  151. Marshall jcm 2000 dsl 401 problem.
  152. HARTKE A70 limitter issue
  153. Hartke LH500 head, 10 seconds of sound.
  154. 1972 Fender Super 6 Reverb - Volume Question
  155. Marshall Valvestate VS100
  156. Peavey Musician Mark 3 gut shots?
  157. Hartke A70 problem
  158. Redplating Tubes in Dumble Clone
  159. Fender TRS pedal issue
  160. 66 Ampeg J12-D
  161. Marshall Lead 100 Mosfet
  162. Rebel 20 wont bias up to spec, low constant hum
  163. Princeton 112 Plus - Intermittent "Popping"
  164. Need a new DMM. Advice?
  165. Crate BT50 Speaker Noise
  166. Peavey LTD 400 low volume distortion
  167. Wall Voltage AC
  168. Ampeg B5R premature decay of notes
  169. 1979 Ampeg V2 blowing main fuse at full volume only....
  170. Ampeg BA115 weird problem fixing poweramp
  171. Peavey 400 LTD Help
  172. Blues Deluxe switching problem
  173. Fender princeston 112 Plus Distorted clean channel
  174. Carlsbro GLX100 popping internal fuses
  175. Marshall DSL lowa bias 27ma 33ma max
  176. DC offset on b&k 3020 sweep / function generator
  177. ashdown peacemaker 40 schematic?
  178. Marshall 3520 bass amp help, blowing fuses...
  179. Ampeg SVT-6 Pro reading +64vdc on the speaker output.
  180. Randall RH 200 channels unbalanced
  181. Peavey D Blues
  182. Damn Generators!!
  183. Classic 50 410 sizzle and crackle
  184. please help me troubleshoot a fender fuzz wah reissue pr 739 pedal
  185. Micro phonic EL34's...common?
  186. Bass Potentiometer ?
  187. Vintage amp mod, 12ax7(ecc83) plus 2 ecl82
  188. Jbl eon510 help!!
  189. Peavey Classic 50
  190. Please Help Me Trouble Shoot 64 Bandmaster
  191. Fender amp intermittently "fading out"
  192. 6G7A output section needs help
  193. Modification to Ashdown 5.15
  194. Fender champion 30 dsp
  195. 5E3 noise issues
  196. Help ID transistor
  197. PV Delta Blues and C30
  198. Checkup On A Fender Tone Master 100W Head
  199. Electro music Leslie Unit connection
  200. KT88 failures
  201. 40+60w 16Ω speakers in a 212 cab= sounds bad
  202. ElectroVoice 100M POWERED Mixer
  203. Mesa M-pulse 600
  204. Orange RockerVerb 50 MkII - No Bias Voltage
  205. Problem with Fender M80 Chorus
  206. Reverb Hum in Gibson GA-19 RVT Falcon
  207. Blonde Bassman
  208. Output transformers and power tubes
  209. Mark Huss plexi with 6v6
  210. Marshall YJM100 schematic?
  211. TDA2030A -anyone experienced w this chip? Plus possible related issue
  212. Working on Bugera 6260 amp - Question about Tube Grade...
  213. Randall RH150 volume cutting
  214. JBL EON dissassembly?
  215. Trem help
  216. Bugera 333XL switching problem
  217. Fender Super 210 getting the best of me
  218. Need a new scope. USB scope used with a laptop ??
  219. Rath Amp Retro 50
  220. Alamo Futura
  221. Marshall Lead 12 5005
  222. Hot Rod Deluxe volume loss
  223. Orange OR80 fuse position
  224. Fender Deluxe VM blowing fuses immediately after taking off standby
  225. Grainger Valve Edition 5 Issues
  226. Line 6 Spider 112 50 Watts Problem
  227. Noob wants to work on Crate GX-30M input jack
  228. Variac carbon brush replacement
  229. Problem with high mAs...
  230. power transformer for Hiwatt Buldog Bass 20 cheapie amp
  231. Source for replacement 1M dual gang pot for JCM800
  232. Issues with a Acoustic B200H 200w Bass Head
  233. Spectra 225 PWR AMP 550-032 REV C
  234. Old Ampeg V2
  235. Capacitor aging question - Ceramics and Electrolytics
  236. Peavey Heritage Voice Coil rubbing sound
  237. Help/advice with new build poping at hi vol
  238. Mesa Express 2 25 low power?
  239. Goofy Voltages on New Tweed Harvard
  240. AC30TB 1989 Trem Troubleshoot
  241. deoxit? NO!
  242. Quiet Fans?
  243. Macro-tech 5000vz
  244. Amp Fuse
  245. Peavey Bandit-75 possible problem with distortion channel
  246. Marshall MA50 head no sound
  247. Oscope ?
  248. Crate GX-212 power amp puzzle
  249. Discharging Caps
  250. Ampeg V4 B H Imstumped