Hammond-Leslie FAQ - Service Bulletins

The following Technical Service Bulletins (TSB) are sorted by model # where applicable.  If you do not see your particular model here, please look under the "All" area.

Model TSB # TSB Description    
         
All 37 Scanner-Run Motor Assemblies GIF
1
PDF
  38 Uneven Notes, or Room Pattern GIF
1   2
PDF
  47 Transistor Kit GIF
1   2
PDF
         
All Drawbar 36 Field Adjustment of Manual Actuator Pushers GIF
1   2
PDF
  Vol 2, No. 4 Motor and Generator Lubrication GIF
1
PDF
         
A-100 16 Improved Generator Filtering GIF
1   2
PDF
         
B-3 16 Improved Generator Filtering GIF
1   2
PDF
         
 C-3 16 Improved Generator Filtering GIF
1   2
PDF
         
D-100 16 Improved Generator Filtering GIF
1   2
PDF
         
 E-100  23  Use of Standard Tone Cabinets with E-100, 200, 300 Organs GIF
1
PDF
   24  Transistor and Diode Commercial Part Replacement Chart GIF
1
PDF
   26  Hum Reduction / Correction to TSB #24 & Service Manual GIF
1
PDF
   41  Tone Cabinet Socket Wiring Change GIF
1   2
PDF
   45  Motor Mounting Brackets GIF
1
PDF
   46  Switching Transient Fix GIF
1
PDF
   53  Standardization of Brush & Cymbal Board GIF
1   2
PDF
   Vol 4, No. 8  Popping and Crackling Noise GIF
1
PDF
       
 E-200 23 Use of Standard Tone Cabinets with E-100, 200, 300 Organs GIF
1
PDF
  24 Transistor and Diode Commercial Part Replacement Chart GIF
1
PDF
  26 Hum Reduction / Correction to TSB #24 & Service Manual GIF
1
PDF
  45 Motor Mounting Brackets GIF
1
PDF
  46 Switching Transient Fix GIF
1
PDF
  Vol 4, No. 8 Popping and Crackling Noise GIF
1
PDF
         
E-300 23  Use of Standard Tone Cabinets with E-100, 200, 300 Organs GIF
1
PDF
  24  Transistor and Diode Commercial Part Replacement Chart GIF
1
PDF
  26  Hum Reduction / Correction to TSB #24 & Service Manual GIF
1
PDF
  30 Circuit Protection for Zener Diode, D-301 GIF
1
PDF
  45 Motor Mounting Brackets GIF
1
PDF
  46 Switching Transient Fix GIF
1
PDF
  Vol 4, No. 8 Popping and Crackling Noise GIF
1
PDF
         
 H-100 31 Control Settings & Adjustments GIF
1 2 3
PDF
  33 Transistor and Diode Commercial Part Replacement Chart GIF
1   2
PDF
  35 H-100 Percussion Circuit GIF
1
PDF
  42 H-100 Percussion Unit Changes GIF
1
PDF
  45 Motor Mounting Brackets GIF
1
PDF
  46 Improved Bass Response GIF
1
PDF
  51 Key Standardization, Improved Amplifiers & Initial Oiling GIF
1   2
PDF
  53 Standardization of Brush & Cymbal Board GIF
1   2
PDF
  55 New Pedal Latching Power Supply & Service Man. Corrections GIF
1 2 3
PDF
  Vol 2, No. 2 Power Supply GIF
1
PDF
    Vol 2, No. 4  Sporadic Crackling Noise (Below S/N 15,000) GIF
1
PDF
         
H-262 Vol 2, No. 2 Power Supply GIF
1
PDF
         
H-300 Vol 2, No. 10 Correction of Cow Bell Cypher in FR2S Rhythm Unit GIF
1
PDF
  Vol 2, No. 10 Drum Scanner GIF
1   2
PDF
         
J-400 22-Jul-70 Low Rhythm Volume GIF
1
PDF
         
K-100 28 Regluing and/or Replacement of Neoprene Key Guide GIF
1
PDF
  32 Replacement of Manual Contact Switch Arm GIF
1
PDF
  34 Leakage of Banjo Triggering Pulses into Pedal Circuit GIF
1
PDF
  44 Key Splitting GIF
1
PDF
         
L-100 19 Improved Reverberation Restraint Bracket GIF
1
PDF
  25 Photocell Expression Control Info GIF
1
PDF
  40 Photocell Expression Control Conversion GIF
1   2
PDF
  45 Motor Mounting Brackets GIF
1
PDF
  Vol 2, No. 2 Speakers GIF
1
PDF
         
M, M-2, M-3 27 Speaker Replacement in Early Spinet and Chord Organs GIF
1
PDF
         
M-100 18 Vibration in Generator Cover (M-162/165) GIF
1
PDF
  19 Improved Reverberation Restraint Bracket GIF
1
PDF
  Vol 4, No. 5 Static Noise When Playing First Two or Three Pedals GIF
1
PDF
         
N-Series 17-Mar-70 Philco & G.E. IC's GIF
1
PDF
  Vol 2, No. 4 Changes in Parts Characteristics GIF
1
PDF
         
R-100 --- Wiring Error in Music Light Plug GIF
1
PDF
         
S, S-1 27 Speaker Replacement in Early Spinet and Chord Organs GIF
1
PDF
         
S-100 19 Improved Reverberation Restraint Bracket GIF
1
PDF
  25 Photocell Expression Control Info GIF
1
PDF
  40 Photocell Expression Control Conversion GIF
1   2
PDF
         
T-100, T-200 57 Service Manual Changes GIF
1
PDF
  Vol 2, No. 10 Drum Scanner GIF
1   2
PDF
         
X-66 Vol 1, No. 10 X-66 Tibia Scanner Replacement GIF
1
PDF
         
X-77 & GT Vol 2, No. 2 Power Supply GIF
1
PDF
  Vol 3, No. 2 Hum or Buzz from Music Light GIF
1
PDF
         
Porta-B Vol 4, No. 5 Two items: #1: Organ Dead  #2: Low Level Ciphers GIF
1
PDF
         
RT-3 16 Improved Generator Filtering GIF
1   2
PDF
         
2000 Series 25 Photocell Expression Control Info GIF
1
PDF
  32 Replacement of Manual Contact Switch Arm GIF
1
PDF
  44 Key Splitting GIF
1
PDF
         
3000 Series 25 Photocell Expression Control Info GIF
1
PDF
  32 Replacement of Manual Contact Switch Arm GIF
1
PDF
  40 Photocell Expression Control Conversion GIF
1   2
PDF
  44 Key Splitting GIF
1
PDF
         
Tone Cabs        
         
All 8 Speaker Replacement for Early Amplifiers (Type F, G & H) GIF
1   2
PDF
         
All

w/Oil Reverb

49 Replacement Reverberation Unit GIF
1   2

3
4   5
PDF
         
Series 10 43 Commercial Equivalent for Transistors and Diodes GIF
1
PDF
         
         

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