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 47 48 49 50 51

  1. Pioneer Sa 7300
  2. hum/buzz from a reissue marshall bluesbreaker
  3. Weird noise. Sounds like a pocket full of change.
  4. Genz Benz GBE 600 DC Fault Protection
  5. More silverface bandmaster issues - intermittent vibe channel
  6. Preamp tubes always become microphonic
  7. Death cap and three-prong cord
  8. A repair isnot always what it seems to be.....
  9. kustom kasino thermostat
  10. Problems Installing an Isolation Transformer in a Silvertone 1430
  11. ceriatone dz30 voltages are low...
  12. Earth Superbass B1000 output impedance?
  13. Fender 5F6a oscillating and motorboating
  14. 1959 Ampeg M12 Distorted, Raspy Tremolo
  15. silverface super reverb - 4 ohm output?
  16. Deluxe Reverb: Reverb buzz?
  17. Blackstar HT60 bias circuit
  18. Marshall TSL100 main board mod
  19. Night Train: Did I cause any permanent damage?
  20. Bugera 1960 Classic Head Bias went horribly wrong NEED HELP
  21. Sunn Concert Lead footswitch
  22. Blues Deluxe, signal loss between preamp and power amp
  23. Marshall TSL100 Reverb Diagnosis
  24. Replacement power switch for Ampeg v4?
  25. Blackface Fender Vibrolux Reverb AA964 Bias Setting?
  26. Mesa Quad preamp- missing chips
  27. Peavey Mark III 400 b/g no output
  28. Re-cap first time fire up?
  29. Maybe a dumb question (6L6GC vs. 5881WXT)
  30. Head to Cab Cable
  31. Frying tube rectifier
  32. high b+ and bias
  33. Standel expert needed
  34. Vox T60 SS head low output
  35. Smoking Joe 2 start up issues
  36. Amp crackle
  37. JCM900 Low Output
  38. Problem with Fender Bassman SP3100 Volume Level
  39. Mesa Boogie Triple Rectifier Solo Head pooping noise
  40. Issue with my Peavey Classic 50/50 power amp Left & Right Channel
  41. Acoustic 450
  42. multiple shielded wires: twist or not?
  43. Kustom switch bulbs
  44. Hot rod deville 4 10 combo
  45. kustom coupe 36
  46. GK 1001rb Loud Pop on power down
  47. Looking for service bulletins for Ampeg VT-60/120
  48. Fender Frontman 212r - Doesn't mute properly
  49. Crate Blue Voodoo No Output
  50. Harmony 304A Break-Up Problem
  51. Ampeg Gemini VI capicitor placement
  52. Sunn Concert lead keeps blowing
  53. Resitor replacement and power rating.
  54. SF Twin Noise
  55. Major problem with Roland Cube 20X
  56. Peavey Mark III 400BH problem
  57. Peavey Nashville 400 reverb tank
  58. Replacent reverb tank for Silverface Bandmaster Reverb?
  59. 5R4 substitute
  60. Amp troubleshooting problems
  61. ELECA EAA-60 Solid State Amp- Low output/volume. Thoughts please.
  62. Need help with my crate GLX65 footswitch!
  63. Question about multitap Twin OT
  64. Laney vc30 -112 sound level problem
  65. Problems with my E300T
  66. 1989 Fender the Twin head
  67. Peavey Bass amp making "bad speaker" sounds at high volume, but speaker isn't bad
  68. Speaker question: Celestion g12-65 breakup
  69. Peavey Bandit 65 speaker noise on low end
  70. Behringer v-tone GMX212, fx board damaged, remove and bypass instructions
  71. Test equipment set-up basics
  72. Pops and thumps, possible bad transformer?
  73. Nasty noises, occilation?
  74. Fender Hot Rod Deluxe - distorted, low volume output
  75. Fender Stage 112 distortion
  76. Alesis Nanoverb overload
  77. Fender M80 hum
  78. Bad Power Transformer?
  79. Peavey 5150 combo pre lead low volume
  80. Laney VC 30 Reverb problem
  81. Kustom Kasino Fever diode replacement
  82. Peavey JSX Head, Intermittent Crackle
  83. stocking your workspace
  84. Eden WT-300 Heater problems
  85. Mesa Subway Rocket Trouble
  86. Fender Super Reverb 1976
  87. fender vib optocoupler neon - replace with LED?
  88. Mystery: Source of unwanted distortion in JCA50H amp (Jet City Ampl.)
  89. Ampeg SVT III Pro
  90. AC30CC2 standby LED
  91. C12Q Speaker Recone Parts
  92. Aidean Mesia Zoom M60
  93. low hum from hiwatt bulldog 30r...?
  94. SVT 4 Pro DI issue
  95. '68 Marshall head sounds like an octaver, notes are doubled about a 5th note lower...
  96. Ampeg SVT-CL 240V, fan voltage?
  97. Old Solder
  98. Fender Hot Rod Deluxe (another) Random crackling noises
  99. Question about fuses popping in H&K Warp X
  100. SF Twin Reverb odd noise
  101. Tornado Orange
  102. Laney VC-50 probs
  103. Peavey XXX volume problems
  104. transformer
  105. Trouble with Peavey 6505 (blowing fuses)!
  106. Another Hot Rod Deluxe switching problem !!
  107. Peavey classic 30
  108. Fender Super Amp 5B4
  109. Rockman by Tom Scholz Sr&d 1980ís
  110. Intermittent buzz in reverb
  111. Low B+ Voltage problem
  112. Another Silvertone 1484 tremolo even without tremolo!!!
  113. Fender Super Twin
  114. Anyone know where to get a preamp tube retainer like this?
  115. Stumped on Hiwatt
  116. peavey 400 problem
  117. Eden WT800 low output problem
  118. 5e3x2 with vvr loss of volume over time
  119. What thermistor for a Hartke LH1000?
  120. Fender: technical writer needed
  121. Ampeg BA115HP Power/Output Problems
  122. SVT-CL misbehaving
  123. Fender Stage 160
  124. Scratchy pot how to hunt down DC voltage?
  125. 65 Fender Silver Blackface Dual BoogieMaster Reverb... Need a little Help!!
  126. Acoustic Controls 470 amp, No Ch A output, Ch B only distortion output
  127. My Crate TD70 blows.
  128. Converting Fender from 6L6GC to EL34 trouble
  129. Marshall MG250 DFX. Clean channel not so clean
  130. Biasing a '64 Vibroverb Custom
  131. Biasing a SVT-VR (has bias LED's)
  132. Peavey valveking 112 lead channel doesn't work
  133. 80's Randall RRM 2-120 Power amp
  134. New Rectifier for Bassman RI
  135. Don't let someone do this to your amp...
  136. Peavey Classic 20 transformer question
  137. Two Prong Power Cord Replacement
  138. 3 lead Cap across vol ctrl on gibson skylark - what is its purpose?
  139. Bias readings----Marshall jcm2000 series
  140. Marshall Lead 100 Mosfet, Blown Rectifiers/Outputs
  141. Magic fix for stripped plastic jack threads?
  142. Getting Started
  143. Rectifier for 1979 fender champ silverface 5ar5 (gz34) or 5y3?
  144. Sturdiest 6550?
  145. Acoustic 150 head question
  146. Fender Blues Jnr - buzz
  147. Hiwatt L50R buzzzzzzzzzz
  148. Need help with Silverface Champ mod
  149. Need some help identifying the problem (possibly blown powertube?)
  150. 1992 Fender Blues Deluxe Hit By Lightning
  151. Help me choose some caps...
  152. Peavey 5150 Combo Issue
  153. '79 Silverface Deluxe Capacitor Question
  154. Crate Vintage Club 50 - Low Power
  155. Volume pots as grid-leak resistors: workarounds?
  156. Volume Loss on one channel
  157. Ampeg Revererocket: Extra Filter Cap?
  158. Bugera 333 Blowing Fuse - F2
  159. tungsol RI 12AX7...still problematic?
  160. '79 Silverface Deluxe Reverb Tremolo Problem
  161. Getting The Most Out Of Vacuum Tubes
  162. marshall jcm 800 model 2203 blown
  163. Marshall Valvestate 8100, No Dirt!
  164. Crate GT1200H Self Oscillating On Drive Channel
  165. Marshall JCM 2000 / TSL60
  166. Crate CA15
  167. Vox AD120VTX....no output
  168. Help determining output impedance.
  169. Marshall JCM 2000 DSL
  170. Crate tx 50d
  171. 5E3 build - noise
  172. SWR Workingman's 12 problems
  173. JCM2000 DSL401 lost bias voltage on V4, V5
  174. Marshall JCM 2000 dsl 50w high pitched squeal
  175. Tube amp loses volumn
  176. Music Man 65 cap to ground on OT secondary?
  177. 70 SF Twin screen resistors
  178. Fender Sidekick Reverb 35 - broken spring
  179. 50Hz hum
  180. Need Crate PSM 15p powered speakerreplacement woofer
  181. Mesa 50 Caliber+ noise issue
  182. Filament Voltage All On One Side of Fender 6G6-B Bassman
  183. Anyone use dielectric grease on tube sockets?
  184. Fender Deville has a static, radio signal like sound
  185. amp picking up mobile phone noises
  186. Peavey Encore 65 problem
  187. Extremely bad WTF syndrome in 1973 Super Reverb
  188. Mackie SRM450 - Replace v1 amp with v2?
  189. 100w plexi twin bridge rectifiers in power supply
  190. noob question - heat vs. output impedance in ss amp
  191. Terrible buzz, goes away when i sqeeze the OT ?
  192. Howdy!
  193. Blue Voodoo BV6212, no sound
  194. Marshall Valvestate 8100 Issue
  195. Acoustic Control Corps B220 - Low, distorted output
  196. Fender Pro Junior
  197. JCM 200 TSL 60 got wet
  198. Fender M-80 SS combo amp channel switching LED problem
  199. Mesa M9 Carbine troubleshooting
  200. HELP! Vox Night Train With No Power
  201. Sunn Beta Lead
  202. CA3059 equivalent (from Trace electroluminescent panel HT AC supply limiter)
  203. 1972 Traynor YGL3A
  204. Peavey Classic 30
  205. Marshall DSL 100 P-Board problem.
  206. Capacitor failure mode: the open circuit
  207. volume fluctuating
  208. Marshall AVT150H TDA problems once again!
  209. Measuring plate voltage... pin 3 goes up in smoke - hot rod deluxe
  210. Altec 600-b cone available?
  211. Speaker Problem
  212. Another Hot Rod Deluxe switching problem
  213. SWR LA 15 Weak Output
  214. Peavey 5150 trouble. Please Help!!!!!!!!!!!!!
  215. '72 SF MV Twin Reverb "bright switches" cause pop and hum
  216. Could someone verify that this bias pot is wired correctly please ?
  217. Fender Tone-master Problem
  218. Peavey 5150 - Preamp and Poweramp seem fine, but NO SOUND
  219. Gibson... Saturn?
  220. Silverface Vibrolux tremolo ticking noise
  221. Broken Line 6 Spider III HD?
  222. Fender Blues Deville - No Reverb
  223. A special kind of hum - Snider amplifier
  224. Ampeg VT-40
  225. Changing rectifier modes in B52 AT100...
  226. Volume when there should be none, when volume pot is at zero on Gibson Titan
  227. QSC ISA500 quiescent current
  228. Acoustic 270 -- Weird voltages in power amp
  229. What rating fuse to use?
  230. Laney Pro Bass Head
  231. Cap Voltage rating for 1/2-wave voltage doubler - question
  232. fender acoustasonic 30dsp has low output power
  233. 5y3 rectifier, no B+
  234. Fender 65R Frontman 1x12 combo reverb problem question
  235. Gemini PL-90 Power Conditioner help
  236. 1972 Ampeg VT-22
  237. Ampeg SVT Classic direct out distorted
  238. Behringer PMH18M Schematic.....
  239. B-52 AT212 suddenly lost volume
  240. Fender FM 212R dead
  241. pignose g40v power transformer replacement
  242. A/C Power Cord Replacement - Gauge Recommendations
  243. Crate MX65R Amp Noise
  244. Is there a Rev. B Schematic for 2004 Blues Deluxe Reissue?
  245. Output transistors sockets SWR SM-400
  246. Marshall MG10CD won't stay fixed!!
  247. Oscilloscope and Signal Generator
  248. Mesa 50 Caliber + Hum
  249. PV Triumph low gain
  250. Carvin X100B resistor question.