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ALLEN & HEATH GL2800 Service Information
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ALLEN & HEATH GL2800 Service Information

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SERVICE INFORMATION
Publication AP6281
COMPLETE

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Summary of Contents for ALLEN & HEATH GL2800

  • Page 1 SERVICE INFORMATION Publication AP6281 COMPLETE...

  • Page 2: Additional Resources

    Introduction This publication provides technical information on servicing the Allen & Heath GL2800. Included are internal layout drawing, block diagram and circuit schematics with board layouts and spare parts lists. Whilst we believe this information to be reliable we do not assume responsibility for inaccuracies.

  • Page 3: Operation

    Technology: The GL2800 uses conventional thru-hole and SMT (surface mount) PCB technology. In certain cases it may be better to replace a faulty assembly rather than try to fix it without the appropriate tools and training.
  • Page 4 Contents Log Internal Layout drawing ............gl2800_layout_1.pdf Surface and Main Parts ..............gl2800_parts_2.pdf System Block Diagram ..........gl2800_blockdiagram_1.pdf Mono Connector PCB ........gl2800_003-228_mono_conn_3.pdf Stereo Input PCB ..........gl2800_003-353_stereo_input_1.pdf Group 1 & 3 PCB ..........gl2800_003-354_group_odd_4.1.pdf Group 2 & 4 PCB ..........gl2800_003-355_group_even_4.pdf Master Sub PCB ..........gl2800_003-356_master_sub_3.1.pdf Group / Matrix PCB........
  • Page 5 GL2800 – Historical Change Log The following list identifies historical changes to the GL2800. The effective dates, serial numbers and related change note documentation are included for reference to help identify the correct issue circuit boards and components. Whilst we believe this information to be reliable we do not assume responsibility for inaccuracies.
  • Page 6 C5402_3 CH4.Sch BOX 20X2 M STRT HOLE-AI LINK TCW LINK TCW LINK TCW LINK TCW HOLE-AI HOLE-AI ALLEN&HEATH ISSUE BY DATE GL2800 MONO CONN PCB TITLE: 12-11-03 Kernick Industrial Estate, 24-8-04 Penryn, Cornwall, PAGE: 25/02/05 FRONT England. TR10 9LU 29/04/05 Tel:...
  • Page 7 CN103 XLR NC3FAV20 CN102 JACK V3M DIR_OUT+ DIR_OUT+ DIR_OUT+ DIR_OUT- DIR_OUT- DIR_OUT- ALLEN&HEATH ISSUE BY DATE GL2800 MONO CONN PCB TITLE: 12-11-03 Kernick Industrial Estate, 24-8-04 Penryn, Cornwall, PAGE: 25/02/05 CH1 CONNS England. TR10 9LU 29/04/05 Tel: +44 (0)8707 556250...
  • Page 8 CN103_1 XLR NC3FAV20 CN102_1 JACK V3M DIR_OUT+ DIR_OUT+ DIR_OUT+ DIR_OUT- DIR_OUT- DIR_OUT- ALLEN&HEATH ISSUE BY DATE GL2800 MONO CONN PCB TITLE: 12-11-03 Kernick Industrial Estate, 24-8-04 Penryn, Cornwall, PAGE: 25/02/05 CH2 CONNS England. TR10 9LU 29/04/05 Tel: +44 (0)8707 556250...
  • Page 9 CN103_2 XLR NC3FAV20 CN102_2 JACK V3M DIR_OUT+ DIR_OUT+ DIR_OUT+ DIR_OUT- DIR_OUT- DIR_OUT- ALLEN&HEATH ISSUE BY DATE GL2800 MONO CONN PCB TITLE: 12-11-03 Kernick Industrial Estate, 24-8-04 Penryn, Cornwall, PAGE: 25/02/05 CH3 CONNS England. TR10 9LU 29/04/05 Tel: +44 (0)8707 556250...
  • Page 10 CN103_3 XLR NC3FAV20 CN102_3 JACK V3M DIR_OUT+ DIR_OUT+ DIR_OUT+ DIR_OUT- DIR_OUT- DIR_OUT- ALLEN&HEATH ISSUE BY DATE GL2800 MONO CONN PCB TITLE: 12-11-03 Kernick Industrial Estate, 24-8-04 Penryn, Cornwall, PAGE: 25/02/05 CH4 CONNS England. TR10 9LU 29/04/05 Tel: +44 (0)8707 556250...
  • Page 11 003-228 iss.3...
  • Page 12 POT14 20KB X2 C/D ALLEN&HEATH ISSUE BY DATE VR1B VR2C VR3C VR4C VR5C VR6C GL2800 STEREO INPUT POT11 10KZ POT14 20KK X2 POT14 20KB X2 C/D POT14 20KB X2 C/D POT14 20KB X2 C/D POT14 20KB X2 C/D TITLE: 20-07-04 BRKT...
  • Page 13 10R PF RAD +48V BAS16 SW2PCOL (SPUN) SW2PCOL (SPUN) EARTH SCREW TERMINAL NARROW ALLEN&HEATH ISSUE BY DATE FID1 FID2 ATE1 ATE2 ATE3 GL2800 STEREO INPUT TITLE: 20-07-04 HOLE-AI SLOT-AI FIDUCIAL FIDUCIAL HOLE-ATE HOLE-ATE Kernick Industrial Estate, 21/01/05 HOLE-ATE Penryn, Cornwall, PAGE: England.
  • Page 14 DATE VR17C VR7B VR8B VR9B VR10B VR11B VR12B VR13B VR14B VR15C VR16B GL2800 STEREO INPUT POT14 10KAC C/D POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT14 20KK X2 POT11 20KB C/D...
  • Page 15 003-353 iss.1...
  • Page 16 10R PF RAD R117 +48V 10R PF RAD ALLEN&HEATH VR6B VR7C ISSUE BY DATE POT11 20KK POT14 10KAC C/D GL2800 GROUP 1 & 3 TITLE: 20-07-04 BRKT BRKT Kernick Industrial Estate, 25-01-04 Penryn, Cornwall, PAGE: 14/02/05 England. TR10 9LU 24/02/05...
  • Page 17 10K 1% 0805 SOLDER ASSIG 33P 0805 ALLEN&HEATH ISSUE BY DATE VR1C VR2C VR3B VR4B VR5C GL2800 GROUP 1 & 3 POT14 20KK X2 POT14 20KK X2 POT11 20KK POT11 20KK POT14 20KK X2 TITLE: 20-07-04 BRKT BRKT BRKT BRKT...
  • Page 18 FLEX SKT 12 WAY 90 DEG HOLE-AI SLOT-AI FIDUCIAL FIDUCIAL POST_GRP2 POST_GRP_EVEN SOLDER ASSIG POST_GRP4 SOLDER ASSIG ALLEN&HEATH ISSUE BY DATE GL2800 GROUP 1 & 3 TITLE: 20-07-04 Kernick Industrial Estate, 25-01-04 Penryn, Cornwall, PAGE: 14/02/05 England. TR10 9LU 24/02/05 24/03/05 Tel: +44 (0)8707 556250...
  • Page 19 003-354 iss.4...
  • Page 20 47/25 47/25 100N/50V 0805 100N/50V 0805 10R PF RAD 10R PF RAD +48V ALLEN&HEATH ISSUE BY DATE VR1B VR2C GL2800 GROUP 2 & 4 POT11 20KK ATE1 POT14 10KAC C/D TITLE: ATE2 12-10-04 BRKT BRKT Kernick Industrial Estate, 26/01/05 HOLE-ATE...
  • Page 21 PCB BREAKOUT S LONG PCB BREAKOUT S LONG PCB BREAKOUT S LONG PCB BREAKOUT S LONG PCB BREAKOUT S LONG ALLEN&HEATH ISSUE BY DATE GL2800 GROUP 2 & 4 TITLE: 12-10-04 Kernick Industrial Estate, 26/01/05 Penryn, Cornwall, PAGE: 14/02/05 England. TR10 9LU...
  • Page 22 003-355 iss.4...
  • Page 23 1N4148 1/63 TL072 HOLE-AI SLOT-AI 1K2 1% 120R HOLE-FIXING 3.2MM HOLE-FIXING 3.2MM ALLEN&HEATH ISSUE BY DATE GL2800 MASTER SUB PCB TITLE: 2/11/04 Kernick Industrial Estate, 02/02/05 Penryn, Cornwall, PAGE: 18/02/05 England. TR10 9LU 25/02/05 Tel: +44 (0)8707 556250 3.1 MG...
  • Page 24 003-356 iss.3...
  • Page 25 10R PF RAD +48V To Master Conector PCB MAIN BUS ALLEN&HEATH ISSUE BY DATE VR14B VR15C GL2800 GROUP MATRIX POT11 20KK PCB BREAKOUT S LONG PCB BREAKOUT S LONG POT14 10KAC C/D TITLE: PCB BREAKOUT S LONG 12-10-04 BRKT BRKT...

  • Page 26: Matrix Output

    6K8 1% 0805 1K2 1% 0805 1K0 1% 0805 120R 1% 0805 HOLE-AI SLOT-AI FIDUCIAL FIDUCIAL ATE1 ATE2 HOLE-ATE HOLE-ATE ALLEN&HEATH ISSUE BY DATE GL2800 GROUP MATRIX VR1B VR2B VR3B VR4B VR5B VR6B VR7B VR8B VR9B VR10B VR11B VR12B VR13B TITLE:...
  • Page 27 003-366 iss.3...
  • Page 28 NE5532 SMD R11 10K 1% 0805 33K 1% 0805 47K 0805 MONO_POST 47/25 22P_S MASTER CONNECTOR PCB ALLEN&HEATH ISSUE BY DATE GL2800 MASTER RIGHT TITLE: 21-07-04 Kernick Industrial Estate, 31/01/05 Penryn, Cornwall, PAGE: 14/02/05 England. TR10 9LU 19/04/05 Tel: +44 (0)8707 556250...
  • Page 29 SW2PCOL (SPUN) BOX 8X2 M 90 DEG LED RECT 5X2.5MM TOMB GRN -VIN DISTRIBUTION ALLEN&HEATH ISSUE BY DATE VR2C VR1C GL2800 MASTER RIGHT POT14 20KK X2 POT14 20KK X2 TITLE: 21-07-04 BRKT BRKT Kernick Industrial Estate, 1K0 1% 0805 31/01/05...
  • Page 30 TL072D SMD 1/63 BAS16 PCB BREAKOUT S LONG PCB BREAKOUT S LONG TL072D SMD 1/63 HOLE-FIXING 3.5MM ALLEN&HEATH ISSUE BY DATE GL2800 MASTER RIGHT TITLE: 22-10-04 Kernick Industrial Estate, 31/01/05 Penryn, Cornwall, PAGE: 14/02/05 England. TR10 9LU 19/04/05 Tel: +44 (0)8707 556250...
  • Page 31 003-367 iss.2...
  • Page 32 HOLE-AI SLOT-AI FROM RIGHT FROM GROUP MATRIX FROM GROUP ODD TO MASTER OUT CONN FROM LEFT ALLEN&HEATH ISSUE BY DATE GL2800 MASTER CONNECTOR TITLE: 01-11-04 Kernick Industrial Estate, 03-02-05 Penryn, Cornwall, PAGE: 13-04-05 England. TR10 9LU Tel: +44 (0)1326 372070...
  • Page 33 003-368 iss.2...
  • Page 34 0R0 0805 4K7 1% 0805 To Master Conector PCB To Master Distribution PCB ALLEN&HEATH ISSUE BY DATE Iss 2.1 meter circuit value change & R157, R160 to 12k GL2800 MASTER LEFT TITLE: 18-10-04 Kernick Industrial Estate, 28/01/05 Penryn, Cornwall, PAGE: 14/02/05 England.
  • Page 35 10R PF RAD 10R PF RAD +48V NE5532 SMD TL072D SMD TL072D SMD TL072D SMD ALLEN&HEATH ISSUE BY DATE VR3C GL2800 MASTER LEFT TITLE: 21-07-04 POT14 20KK X2 Kernick Industrial Estate, 28/01/05 BRKT Penryn, Cornwall, PAGE: 14/02/05 England. TR10 9LU...
  • Page 36 R137 AUX10 SW10A 15K 1% 0805 SW2PCOL (SPUN) SW10B SW2PCOL (SPUN) ALLEN&HEATH ISSUE BY DATE VR2B VR1B VR4B GL2800 MASTER LEFT POT11 5KRD POT11 5KRD POT11 20KK TITLE: 21-07-04 BRKT BRKT BRKT Kernick Industrial Estate, 28/01/05 Penryn, Cornwall, PAGE: 14/02/05 England.
  • Page 37 SLOT-AI FIDUCIAL FIDUCIAL PLR2 ATE1 ATE2 PLR1 HOLE-FIXING 3.2MM HOLE-ATE HOLE-ATE HOLE-FIXING 3.2MM ALLEN&HEATH ISSUE BY DATE GL2800 MASTER LEFT TITLE: 18-10-04 Kernick Industrial Estate, 28/01/05 Penryn, Cornwall, PAGE: 14/02/05 England. TR10 9LU 19/04/05 18/05/05 Tel: +44 (0)8707 556250 C5866...
  • Page 38 003-369 iss.3...
  • Page 39 GROUP ODD GROUP ODD GRP MATRIX GRP MATRIX GRP MATRIX GRP MATRIX LEFT RIGHT ALLEN&HEATH ISSUE BY DATE GL2800 MASTER DISTRIBUTION PCB TITLE: 04-11-04 Kernick Industrial Estate, 02/02/05 Penryn, Cornwall, PAGE: England. TR10 9LU Tel: +44 (0)1326 372070 C5871 DRG No:...
  • Page 40 003-370 iss.1...
  • Page 41 GROUP ODD GROUP ODD GRP MATRIX GRP MATRIX GRP MATRIX GRP MATRIX LEFT RIGHT ALLEN&HEATH ISSUE BY DATE GL2800 MASTER DISTRIBUTION PCB TITLE: 04-11-04 Kernick Industrial Estate, 02/02/05 Penryn, Cornwall, PAGE: 01/07/05 England. TR10 9LU Tel: +44 (0)1326 372070 C5871...
  • Page 42 003-370 iss.1...
  • Page 43 LINK TCW LINK TCW LINK TCW HOLE-AI ALLEN&HEATH ISSUE BY DATE PCB UPDATE :- GL2800 SM CONN PCB TITLE: 01-11-04 Sheet Symbol / Port Connections Kernick Industrial Estate, Append sheet numbers to local nets Penryn, Cornwall, PAGE: Update component footprints FRONT England.
  • Page 44 MIC+ FB-TH 47/63 CN103 XLR NC3FAV20 CN102 JACK V3M DIR_OUT+ DIR_OUT- ALLEN&HEATH ISSUE BY DATE GL2800 SM CONN PCB TITLE: 01-11-04 Kernick Industrial Estate, Penryn, Cornwall, PAGE: CH1 CONNS England. TR10 9LU Tel: +44 (0)8707 556250 C5869 DRG No: ISSUE:...
  • Page 45 MIC+ FB-TH 47/63 CN103_1 XLR NC3FAV20 CN102_1 JACK V3M DIR_OUT+ DIR_OUT- ALLEN&HEATH ISSUE BY DATE GL2800 SM CONN PCB TITLE: 01-11-04 Kernick Industrial Estate, Penryn, Cornwall, PAGE: CH2 CONNS England. TR10 9LU Tel: +44 (0)8707 556250 C5869 DRG No: ISSUE:...
  • Page 46 MIC+ FB-TH CN203 XLR NC3FAV20 CN200 JACK V5M MIC_OUT+ MIC_OUT+_NML R200 ALLEN&HEATH ISSUE BY DATE GL2800 SM CONN PCB TITLE: 01-11-04 Kernick Industrial Estate, Penryn, Cornwall, PAGE: ST1/2 CONNS England. TR10 9LU Tel: +44 (0)8707 556250 C5869 DRG No: ISSUE:...
  • Page 47 MIC+ FB-TH CN203_1 XLR NC3FAV20 CN200_1 JACK V5M MIC_OUT+ MIC_OUT+_NML R200_1 ALLEN&HEATH ISSUE BY DATE GL2800 SM CONN PCB TITLE: 01-11-04 Kernick Industrial Estate, Penryn, Cornwall, PAGE: ST3/4 CONNS England. TR10 9LU Tel: +44 (0)8707 556250 C5869 DRG No: ISSUE:...
  • Page 48 003-371 iss.1...
  • Page 49 PIN-SOLDER 1.5MM PIN-SOLDER 1.5MM PIN-SOLDER 1.5MM P13 PIN-SOLDER 1.5MM PIN-SOLDER 1.5MM P14 PIN-SOLDER 1.5MM PIN-SOLDER 1.5MM ALLEN&HEATH ISSUE BY DATE GL2800 POWER CONN TITLE: 9/02/05 Kernick Industrial Estate, Penryn, Cornwall, PAGE: England. TR10 9LU Tel: +44 (0)1326 372070 AG5875 DRG No:...
  • Page 50 003-372 iss.1...
  • Page 51 MIXL_OUT- MIXR_OUT- XLR NC3MAH20 XLR NC3MAH20 BOX 10X2 M STRT CN11 HOLE-AI SLOT-AI ALLEN&HEATH ISSUE BY DATE GL2800 MASTER OUT CONN TITLE: 01-11-04 Kernick Industrial Estate, 02/02/05 Penryn, Cornwall, PAGE: England. TR10 9LU Tel: +44 (0)8707 556250 C5873 DRG No:...
  • Page 52 003-373 iss.1...
  • Page 53 ALLEN&HEATH VR2B VR4B VR5B VR6B VR7B VR1B VR3B ISSUE BY DATE POT11 20KB C/D GL2800 MONO INPUT POT11 20KB C/D POT11 200KC X2 D/G POT11 20KB C/D POT11 20KB C/D POT11 10KZ POT11 200KC X2 D/G TITLE: R101 28-7-04 BRKT...
  • Page 54 DATE VR9B VR10B VR11B VR12B VR13B VR14B VR15B VR16B VR17C VR18C VR8B GL2800 MONO INPUT POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT14 10KAC C/D POT14 10KAC C/D POT11 20KK TITLE:...
  • Page 55 003-391 iss.3...
  • Page 56 ALLEN&HEATH VR2B VR4B VR5B VR6B VR7B VR1B VR3B ISSUE BY DATE POT11 20KB C/D GL2800 MONO INPUT POT11 20KB C/D POT11 200KC X2 D/G POT11 20KB C/D POT11 20KB C/D POT11 10KZ POT11 200KC X2 D/G TITLE: R101 28-7-04 BRKT...
  • Page 57 DATE VR9B VR10B VR11B VR12B VR13B VR14B VR15B VR16B VR17C VR18C VR8B GL2800 MONO INPUT POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT14 10KAC C/D POT14 10KAC C/D POT11 20KK TITLE:...
  • Page 58 003-391 iss.4...
  • Page 59 ALLEN&HEATH VR2B VR4B VR5B VR6B VR7B VR1B VR3B ISSUE BY DATE POT11 20KB C/D GL2800 MONO INPUT POT11 20KB C/D POT11 200KC X2 D/G POT11 20KB C/D POT11 20KB C/D POT11 10KZ POT11 200KC X2 D/G TITLE: BRKT BRKT BRKT...
  • Page 60 DATE VR9B VR10B VR11B VR12B VR13B VR14B VR15B VR16B VR17C VR18C VR8B GL2800 MONO INPUT POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT14 10KAC C/D POT14 10KAC C/D POT11 20KK TITLE:...
  • Page 61 003-391 iss.5...
  • Page 62 ALLEN&HEATH VR2B VR4B VR5B VR6B VR7B VR1B VR3B ISSUE BY DATE POT11 20KB C/D GL2800 MONO INPUT POT11 20KB C/D POT11 200KC X2 D/G POT11 20KB C/D POT11 20KB C/D POT11 10KZ POT11 200KC X2 D/G 28-7-04 TITLE: BRKT BRKT...
  • Page 63 DATE VR9B VR10B VR11B VR12B VR13B VR14B VR15B VR16B VR17C VR18C VR8B GL2800 MONO INPUT POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT11 20KK POT14 10KAC C/D POT14 10KAC C/D 28-7-04 POT11 20KK...
  • Page 64 003-391 iss.6...
  • Page 65 PIN-SOLDER 1.25MM VR1B FADER ALPS 60MM 10KA X 2 S PIN-SOLDER 1.25MM PIN-SOLDER 1.25MM ALLEN&HEATH ISSUE BY DATE GL2800 60MM FADER BISCUIT BRKT TITLE: MG 18/02/05 Kernick Industrial Estate, VR1C Penryn, Cornwall, PAGE: FADER ALPS 60MM 10KA X 2 S England.
  • Page 66 003-396 iss.A...
  • Page 67 TL072D SMD TL072D SMD 100K 1% 0805 DB37FH(DMR) DB37FH(DMR) 100N/50V 0805 BOX 20X2 M 90 DEG ALLEN&HEATH ISSUE BY DATE GL2800 SYSLINK IN PCB TITLE: 07/02/05 Kernick Industrial Estate, Penryn, Cornwall, PAGE: England. TR10 9LU Tel: +44 (0)1326 372070 DRG No:...
  • Page 68 003-460 iss.1...
  • Page 69 FID8 FID10 PIN-SOLDER 1.2MM FIDUCIAL FIDUCIAL FIDUCIAL FIDUCIAL FIDUCIAL SLOT-AI HOLE-AI ALLEN&HEATH ISSUE BY DATE GL2800 SYSLINK OUT PCB TITLE: AAT 05-11-04 Kernick Industrial Estate, Penryn, Cornwall, PAGE: England. TR10 9LU Tel: +44 (0)8707 556250 C6160 DRG No: ISSUE: SHEET:...
  • Page 70 003-473 iss.1...

  • Page 71: System Block Diagram

    GL2800 SYS-LINK CONNECTION PHANTOM POWER GL2800 METER 4 BAND EQUALISER GRP/AUX REV MUTE SYSTEM BLOCK DIAGRAM GAIN AUX OUT LINE/PAD EQ IN -20dB +10dB boost 2= + AUX MIX TIP= + IMPEDANCE BALANCED GROUPS / AUX 1-8 BALANCED TIP= +...
  • Page 72 GROUP ODD PCBs Group Matrix PCB ....003-366 003-354 x 2 Master Right PCB..... 003-367 MAIN HARNESS GL2800-824 AL6091 MAIN HARNESS GL2800-832 AL6092 MAIN HARNESS GL2800-840 AL6093 Master Connector PCB .... 003-368 MAIN HARNESS GL2800-848 AL6094 MAIN HARNESS GL2800-856 AL6283 Master Left PCB .......
  • Page 73 GL2800 Surface Parts 9MM POT NUT AB8050 RED PUSH BUTTON AJ2961 +48V +48V LATCHING SWITCH AL0162 GREY PUSH BUTTON AJ2864 LATCHING SWITCH AL0162 POLARITY POLARITY LATCHING SWITCH AL0162 LINE LINE PHONES LATCHING SWITCH AL0162 DUAL STEREO RETURN (PAD) (PAD) TALKBACK MIC...
  • Page 74 GL2800 Surface Parts (GL2800-824 shown) JACK SOCKET SWITCHED AL3410 M3x6 SCREW AB0215 JACK SOCKET UNSWITCHED AL3407 JACK SOCKET SWITCHED AL3410 4PIN FEMALE XLR AL8104 JACK SOCKET UNSWITCHED AL3407 ALLEN&HEATH GL2800 MIC OUT MIC OUT DIRECT DIRECT DIRECT DIRECT DIRECT DIRECT...

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