Infinity Intermezzo 2.6 Service Manual
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Infinity Intermezzo 2.6 Service Manual

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INTERMEZZO 2.6
POWERED LOUDSPEAKER
SERVICE MANUAL
Infinity Systems, Inc
250 Crossways Park Dr.
Woodbury, New York 11797
REV5 7/2004

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Summary of Contents for Infinity Intermezzo 2.6

  • Page 1 INTERMEZZO 2.6 POWERED LOUDSPEAKER SERVICE MANUAL Infinity Systems, Inc 250 Crossways Park Dr. Woodbury, New York 11797 REV5 7/2004...

  • Page 2: Table Of Contents

    Intermezzo 2.6 CONTENTS SPECIFICATIONS …….……………………………………………….3 DETAILED SPECIFICATIONS …………………….…………………4 CONTROLS and CONNECTIONS …………………….….…………6 OPERATION/SYSTEM AURAL SWEEP TEST………..…….……..8 SERVICE BULLETIN INF2000-05 ………….………………….…….9 SERVICE BULLETIN INF2002-04 ….………………….…………...10 TECH TIP INF2003-03………………………………………..………11 MECHANICAL/PACKAGING PARTS LIST…………………………12 EXPLODED VIEW ……………………………………….……………13 PACKAGING …………………………….………………………….…14 WIRING DIAGRAM/HI-PASS CROSSOVER SCHEMATIC…..….15 AMPLIFIER BLOCK DIAGRAM……..…………………….…………16 IM 2.6 ADJUST BIAS PROCEDURE…………….………….………17...

  • Page 3: Specifications

    Intermezzo 2.6 Specifications...

  • Page 4: Detailed Specifications

    Intermezzo 2.6 Detailed Specifications...
  • Page 5 Intermezzo 2.6 Detailed Specifications (Cont.)

  • Page 6: Controls And Connections

    Intermezzo 2.6...
  • Page 7 Intermezzo 2.6...

  • Page 8: Operation/System Aural Sweep Test

    Intermezzo 2.6 Operation The operation of the Intermezzo 2.6 loudspeaker system,and the proper settings for the Room Adaptive Bass Opitmization System, or R.A.B.O.S., is thoroughly covered in the Owner’s guide, part #335714-001. For service purposes, the R.A.B.O.S. system is canceled when all three front panel controls (F) (L) (W) are turned fully CW, and the Shelf/Stand Placement Selector switch should be set to the “STAND”...
  • Page 9 Intermezzo 2.6...

  • Page 10: Service Bulletin Inf2000-05

    Model: Intermezzo 2.6 Subject: No Output In the event you receive an Intermezzo 2.6 loudspeaker with the complaint: “There is no output, and the LED on the volume control does not light, red or green”, check the items listed below: Check the 3A line fuse to make sure it’s not open.

  • Page 11: Tech Tip Inf2003-03

    2) Clean and repair the PC board if required (See Tech Tip HCG2002-01 - Damaged Printed Circuit Boards). 3) Replace the Hybrid Bash Controller IC: IL50,IL100s,MSW-1,IM2.6,IM3.5c U1 in models: IL60, IL120s U501 in models: Infinity part # HC1011 FAILURE TO FOLLOW THE INSTRUCTIONS ABOVE MAY RESULT IN UNIT FAILURE WHEN THE AMPLIFIER IS POWERED UP...

  • Page 12: Mechanical/Packaging Parts List

    Intermezzo 2.6 INTERMEZZO 2.6 L/R MECHANICAL/PACKAGING PARTS LIST Cabinet Intermezzo 2.6 L/R (Not for Sale) Grille (R/L) (Pair) Blue 335453-050 (R/L) (Pair) Gray 335453-040 (R/L) (Pair) Burgundy 335453-060 (R/L) (Pair) (Black) Side Trim Panels 335452-030 (R/L) (Pair) (Cherry) 335452-020 (R/L) (Pair) (Maple)

  • Page 13: Exploded View

    Intermezzo 2.6 Exploded View Remove and discard when woofer is replaced with part# IM165GS...

  • Page 14: Packaging

    Intermezzo 2.6 Packaging...

  • Page 15: Wiring Diagram/Hi-Pass Crossover Schematic

    Intermezzo 2.6 Wiring Diagram Intermezzo 2.6 Hi-Pass Schematic...

  • Page 16: Amplifier Block Diagram

    Intermezzo 2.6 Amplifier Block Diagram...

  • Page 17: Im 2.6 Adjust Bias Procedure

    Intermezzo 2.6 IM 2.6 ADJUST BIAS PROCEDURE (Mandatory when any output MOSFET transistors Q3,4,7,8 are replaced) 1. Amplifier should be unplugged and OFF. 2. Remove Amp assembly from cabinet, following the instructions on Page 11. All wires can remain connected unless they will prevent you from removing the amplifier or accessing potentiometers on the Linear board PCB in the following steps.

  • Page 18: Electrical Parts List (120V)

    Intermezzo 2.6 Electrical Parts List (120V)
  • Page 19 Intermezzo 2.6 Electrical Parts List (120V) (Cont.)
  • Page 20 Intermezzo 2.6 Electrical Parts List (120V) (Cont.) Change R22 to 100K ohm - See Page 10...
  • Page 21 Intermezzo 2.6 Electrical Parts List (120V) (Cont.)
  • Page 22 Intermezzo 2.6 Electrical Parts List (120V) (Cont.)
  • Page 23 Intermezzo 2.6 Electrical Parts List (120V) (Cont.)
  • Page 24 Intermezzo 2.6 Electrical Parts List (120V) (Cont.)
  • Page 25 Intermezzo 2.6 Electrical Parts List (120V) (Cont.)

  • Page 26: Electrical Parts List (230V)

    Intermezzo 2.6 Electrical Parts List (230V) PCB, LINEAR BD Semiconductors UA0009 OPAMP, QUAD 14P DIL TL074/084 DS0001 D1,D2,D3,D4,D5,D6,D7,D8,D9,D10,D11 RECT, 100mA 75V SIGNAL 1N4148T QB0017 Q2,Q6 TRANS, NPN 150V 0.6A 2N5551TR QB0018 Q1,Q5 TRANS, PNP 150V 0.6A 2N5401TR QM0034 Q4,Q8 MOSFET, IRF9540 TO220AB...
  • Page 27 Intermezzo 2.6 Electrical Parts List (230V) (Cont.) Part Number Designator Description Resistors RM0001 RES, MF 1K00 1/4W 1% RM0002 R11,R16,R17,R23,R24,R26,R32,R40,R41, R42 RES, MF 10K0 1/4W 1% RM0011 R2,R3 RES, MF 100K 1/4W 1% RM0012 RES, MF 100R 1/4W 1% RM0016...
  • Page 28 Intermezzo 2.6 Electrical Parts List (230V) (Cont.) Part Number Designator Description PCB, POWER SUPPLY Semiconductors DR0086 D6,D7 RECT, 1A 600V ULTRAFAST MUR160 DS0001 D2,D10 RECT, 100mA 75V SIGNAL 1N4148T DS0002 D5,D8,D9 RECT, 100MA 200V SIGNAL 1N3070 DZ0004 ZENER, 500mW 18V 5% 1N5248B...
  • Page 29 Intermezzo 2.6 Electrical Parts List (230V) (Cont.) Part Number Designator Description Miscellaneous 480007 SUB, #18B 4 187X032/1/4 STRP 480029 SUB, #18R 4 187X032/1/4STRP 500104 XFMR, POWER 100V HC TRAN ETD39 540134 IND, 26UH UPRIGHT AIR YT9415 BF0007 BEAD, FERRITE JH0074 CNCTR, HEADER 8PIN LOCKING .1C...
  • Page 30 Intermezzo 2.6 Electrical Parts List (230V) (Cont.) Part Number Designator Description Miscellaneous JH0061 CNCTR, HEADER 5PIN JH0074 CNCTR, HEADER 8PIN LOCKING .1C PCB, EMI FILTER DB0009 RECT, 6A 400V BRIDGE KV0001 VARISTOR, 275V 100J .6W CF0057 C1,C2 CAP, FX .22UF 250V 10%...
  • Page 31 OPENING OF PLASTIC HOUSING FOR RIB- BON CABLE. MZ0034 STANDOFF, 3/8 SPACER NYLON USED ON THE VOLUME BOARD RABOS CUP 2.6L CUP, RABOS INTERMEZZO 2.6 LEFT REVI- SION B; COMPLETE WITH GASKET RP0100 POT, KNOB INT 2.6 LEVEL LEFT PCB, RABOS RIGHT Semiconductors...
  • Page 32 OPENING OF PLASTIC HOUSING FOR RIB- BON CALBE. MZ0034 STANDOFF, 3/8 SPACER NYLON USED ON THE VOLUME BOARD RABOS CUP 2.6R 1 CUP, RABOS INTERMEZZO 2.6 RIGHT REVISION B; COMPLETE WITH GASKET RP0098 POT, KNOB INT 2.6 LEVEL RIGHT Miscellaneous 480023...
  • Page 33 TO LOCATION C9 AND R27 HS0067 SCREW, #6-3/8 TYPE A PP BLK 7PER USED ON MZ0030; 1PER USED ON J5 FEATURE INTERMEZZO 2.6H MAIN ENCLOSURE INTERMEZZO 2.6 INTRMEZZO 2.6PE MAIN PLATE INTERMEZZO 2.6E JC0071 CNCTR, FEM-FEM HARNESS 8PIN 9 USED...

  • Page 34: Integrated Circuit Diagrams

    Intermezzo 2.6 Integrated Circuit Diagrams...

  • Page 35: Printed Circuit Board Diagrams

    Intermezzo 2.6 Printed Circuit Board Diagrams...
  • Page 36 Intermezzo 2.6 Printed Circuit Board Diagrams (Cont.)
  • Page 37 Intermezzo 2.6 Printed Circuit Board Diagrams (Cont.)
  • Page 38 Intermezzo 2.6 Printed Circuit Board Diagrams (Cont.)

  • Page 39: Schematics

    Intermezzo 2.6 250W RABOS MAIN BOARD...
  • Page 40 Intermezzo 2.6 LINEAR PCB...
  • Page 41 POWER SUPPLY If R22 is 47K change to100K ohm - See Page 10 Intermezzo 2.6...
  • Page 42 Intermezzo 2.6 See Service Bulletin Page 9 250W FEATURE BOARD...
  • Page 43 250W FEATURE MEZZANINE BOARD Intermezzo 2.6...
  • Page 44 Intermezzo 2.6 RABOS VOLUME and EMI BOARD...

Table of Contents