QSC K8 Service Manual
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QSC K8 Service Manual

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K Series
K8, K10, K12, KSub
TD-000487-00
February 2015
A
QSC Audio Products, LLC
Costa Mesa, California, USA
www.qsc.com

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  • Page 1 Service Manual K Series Product Model: K8, K10, K12, KSub Document #: TD-000487-00 Initial Release: February 2015 Revised Release: Revision: QSC Audio Products, LLC Costa Mesa, California, USA www.qsc.com...
  • Page 2 QSC Audio Products, LLC...
  • Page 3 Table of Contents 1. Introduction ....................................5 1.1 Restriction of Hazardous Substances Directive (RoHS) ..............................5 1.2 Revision history ............................................5 1.3 Service bulletins ............................................5 1.4 Serial Numbers ............................................5 1.5 The well-equipped service bench ......................................6 2. Product specification and images ..............................7 3.
  • Page 4 Copyright © 2014 by QSC Audio Products, LLC. All Rights Reserved. QSC and the QSC logo are trademarks of QSC Audio Products, LLC in the U.S. Patent and Trademark Office and other coun- tries. Patents may apply or be pending.

  • Page 5: Introduction

    1.1 Restriction of Hazardous Substances Directive (RoHS) QSC K Series loudspeaker products are manufactured to conform to the European Union’s RoHS Directive, which reduces the amount of hazardous substances allowed in products for sale within its member nations. In electronic equipment such as audio processors, this applies primarily to certain toxic heavy metals, such as lead, which may be present in electronic components, solder, and other parts.

  • Page 6: The Well-Equipped Service Bench

    • Various hand tools for electronic repair, including Phillips screwdrivers, needle-nose pliers, etc. • 2.5x or higher magnifier with lamp • ROHS-compliant (lead-free) soldering iron • RoHS-compliant electronic solder • ROHS-compliant desoldering equipment or desoldering braid QSC Audio Products, LLC...

  • Page 7: Product Specification And Images

    27 lb (12.2 kg) 32 lb (14.5 kg) 41 lb (18.6 kg) 74 lb (33.6 kg) Available Accessories K8 TOTE • K8 YOKE • K10 TOTE • K10 YOKE • K12 TOTE • K12 YOKE • KSub COVER K SERIES M10 KIT...

  • Page 8: Firmware

    PCB. The only difference between them is the firmware code that is programmed into the DSP. This means that you can program a DSP/input board that was originally programmed as a K8 into a K10, K12, or vice-versa.

  • Page 9: Firmware Programming Instructions

    3.2 Firmware programming instructions Warning If the instructions are not followed carefully, there is a possibility that the amplifier inside the loudspeaker will stop work- ing. Because House of K loudspeakers use DSP technology, all audio signals are routed through the DSP controller. If the firmware is not programmed into the DSP controller correctly, then the amplifier will fail to pass audio.
  • Page 10 3. Click on the button labeled “Open File” and navigate to the directory where the HEX file you received is located. If you received this firmware file from a QSC employ- ee, make sure that it’s the correct one or the speaker will not work after being pro- grammed.

  • Page 11: Operational Description

    Attached to the baffle are two transducers — the low and high frequency. Each model has a different size low frequency transducer - the K8 has a 8”, K10 has 10”, and K12 has a 12”, all extending bass response as diameter increases.

  • Page 12: Ksub

    Under load, the amplifiers will pull energy from the main rails and the power supply will increase the duty cycle to compensate and keep the main rails at ±85V; this means the housekeeping voltages increase under load. QSC Audio Products, LLC...
  • Page 13 Class D amplifier Each of the BOP amplifiers is a type of class D amplifier called ‘self-oscillating’, as opposed to a class D amplifier that requires a clock to switch. Self-oscillating class D amplifiers create a PWM signal solely by using feedback; although many different variations have been invented.

  • Page 14: Protection Systems

    Although the DSP signal level limiting and power supply current limiting will keep the mains current draw from blowing the fuse in normal operation, a fuse is present and will open under catastrophic circumstances. QSC Audio Products, LLC...

  • Page 15: Top-Box Disassembly Instructions

    To reduce the number of pages in this service manual, all top-box K-Series loudspeakers have been combined into one section. The K10 powered loudspeaker is used as an example for these generic disassembly and repair procedures. The K8 and K12 models are assembled nearly identical to the K10. Slight differences are as follows: •...

  • Page 16: Front Grille

    2. Verify that the gasket is properly installed around the Figure 5.3 - Front baffle removal edge of the baffle. 3. Reinstall all acoustic insulation in both the main enclo- sure assembly and baffle assembly. QSC Audio Products, LLC...

  • Page 17: High Frequency Transducer

    5.4 High frequency transducer The K8 and K10’s HF transducer is secured to the baffle by four mounting points that come out of the waveguide. Covering the screws are four rubber plugs that allow the high frequency sound waves to propagate out correctly. The K12’s HF trans- ducer is secured on the baffle as well, but behind the waveguide.

  • Page 18: Low Frequency Transducer

    • The easiest way to access the interior of the enclosure is to remove the BOP. See removal instructions in “5.1 Bucket of power” on page 15. • Reapply a small amount of thread locking fluid to the mounting plate when replacing the handles. Figure 5.7 - Handle removal QSC Audio Products, LLC...
  • Page 19 Rubber feet removal and installation notes • Rubber feet are secured to the enclosure with machine screws (on the exterior of the enclosure) and nuts (on the interi- or of the enclosure). • Access to the interior of the speaker assembly is required to remove and install the rubber feet. •...

  • Page 20: Ksub Disassembly And Repair Procedures

    We recommend you use a flexible exten- sion bit holder that can be adjusted and twisted, similar to a snake. Figure 6.2 - LF transducer removal can only performed through the rear of the cabinet QSC Audio Products, LLC...

  • Page 21: Handles, Threaded Pole Mount, And Casters

    4. Partially lift the transducer out of the cabinet. 5. Disconnect the fastons from the transducer’s positive and negative terminals. 6. Lift and rotate the transducer out of the rear BOP cutout hole. It will barely fit. Installation 1. Place the cabinet assembly on a padded surface front grille-side-down. 2.
  • Page 22 • Because of the normal wear and tear of the casters, they may have to be replaced often • Remove the four machine screws that secure the caster to the cabinet. Figure 6.6 - Caster removal on the KSub QSC Audio Products, LLC...

  • Page 23: Bop Disassembly And Repair Procedures

    7. BOP disassembly and repair procedures 7.1 Faceplate Removal 1. Remove the 10 screws around the perimeter of the BOP. These screws secure the faceplate to the main bucket. 2. Partially lift the faceplate assembly out to gain access to the ribbon cable wire trap.

  • Page 24: Psu/Amplifier Board

    5. Beginning with the corner screws, fasten all short screws to secure the PCB to the chassis. 6. Fasten the two long screws last. This will press the MOSFETs against the chassis for good heat transfer. Figure 7.3 - PSU/amplifier PCB removal from the bucket chassis. QSC Audio Products, LLC...

  • Page 25: Input/Dsp Board

    7.3 Input/DSP board Removal 1. Remove the faceplate assembly for easy access to the input/DSP PCB. Follow removal instructions in “7.1 Faceplate” on page 23. 2. Remove all screws securing the XLR and RCA connectors to the faceplate. 3. Remove all screws securing the input/DSP PCB to the faceplate’s standoffs. 4.

  • Page 26: Testing

    2’s output. K Family test adapter QSC Technical Services Group offers an output adapter for testing any K, KW, or KLA series BOP. The adapter includes a switch for testing channel 2’s nor- mal and high-pass filtering sections. It also includes a front LED for test. This adapter is highly recommended for troubleshooting and testing the output power of the amplifier.
  • Page 27 12 o’clock or 0 dB position. 2. On KSub models set the mode to “NORMAL” and the polarity to “NORMAL”. On K8/K10/K12 models set the LF to “NORMAL” and the HF to “FLAT”. 3. Apply AC power and turn the switch on.
  • Page 28 5. Adjust the mode switch to “DEEP”. Verify a slight increase in output voltage on the LF channel. 6. On K8/K10/K12 models, adjust the mode switch to “EXT SUB”. Verify a decrease in output voltage on the LF channel. Apply a 500 mVrms, 6 kHz sine wave signal. Using a DMM, verify the measurements in the table below.

  • Page 29: Loudspeaker Testing

    5. Apply an 8 ohm load to channel 1 only. Follow step 4 again, except test for power this time. A power graph is provided below. 6. Disconnect channel 1’s load. Apply an 8 ohm load to channel 2. Follow step 4 again, except test for power this time. Test complete.
  • Page 30 Step or sweep the generator frequency from about 20 Hz up to about 20 kHz. Listen for a clean, undistorted tone; any buzzes, rattles, distortion, etc., could indicate a defective transducer, loose hardware, damaged enclosure, or other problem that must be corrected. QSC Audio Products, LLC...

  • Page 31: Troubleshooting Guide

    9. Troubleshooting guide 9.1 General tips and tricks Testing the line filter components for open circuit in two measurements The components in the line filter (L11, L12, L13, R140, F1) and measurement #1 - black probe Use diode check mode. the bridge rectifier (BR1) can all be checked in two measurements #2 - red probe Should measure ~0.5V...
  • Page 32 • Check for 1.5—1.65 Vdc at both ADC pins, all 4 DAC pins, FILTA (pin 47), FILTD (pin 41), and CM (pin 40). If any of those pins is at ground, audio will not pass through the DSP. QSC Audio Products, LLC...

  • Page 33: Line Filter - Broken Components (Bop)

    IEC jack, turn the amplifier module on, and gently hit the amplifier module with a rubber mallet or hammer. (Figure 8.5). Reference Description QSC Part # Inductor 774 µH, 2 pin XF-000377-00 L11, L12 Inductor 4 mH 4 pin...

  • Page 34: Broken Capacitor C45 (Bop)

    If the customer accidentally applies a powered speaker-level signal to the input of the BOP, most likely the op-amp U14 will fail. Because the op-amp is shared between channels A and B, either input can damage the op-amp. The QSC part number for the MC33078 op-amp is IC-000048-30.

  • Page 35: Amplifier Section, Mosfet Failure (Bop)

    9.5 Amplifier section, MOSFET failure (BOP) While not a common failure due to the DSP limiting and protecting the amplifier section from being over-driven, the MOS- FETs in the amplifier section can fail in certain conditions. For example, if the LF or HF transducer has a short across the pos- itive and negative terminals, high-current can flow through the MOSFET, ultimately causing failure to the amplifier section.

  • Page 36: Power Supply, Mosfet Failure (Bop)

    R149 C115 PSU-VSW 0.1UF 1 PCNT 10 PCNT 1.0UF 63.4K 1/8W 20 PCNT 1 PCNT 1/10W MOC205R2V-M MBR230 PRI_LO Figure 9.9 - Components to replace and/or check in the event of a power supply MOSFET failure. QSC Audio Products, LLC...

  • Page 37: Fan Behavior

    9.8 Internal wiring harness Wiring harness problems tend to occur more often in the K8, K10, and K12 models than in the KSub. Sometimes the wires to the woofer (green and green/black) disconnect from the transducer terminals because they are too taut. If this happens, make some slack in the wires and crimp new faston connectors on them before reconnecting.

  • Page 38: Front Led

    Due to possible vibration issues, component problems, or a short circuit in the wire, the front blue LED can burn out. This repair is not easy and can take at least an hour of labor to finish. While only the blue LED needs to be replaced (QSC part number QD-000312-GP), the front grille and baffle assembly must be removed from the main enclosure to access the LED.

  • Page 39: Transducer Issues

    • To replace the high frequency transducer, the baffle should be removed. • All K-series top-box models share the same HF transducer. • A diaphragm replacement is available for the HF transducer. Use QSC p/n SR-000145-00 • Note the wire color in the table below for each model.

  • Page 40: Broken Baffle

    • The main enclosure is NOT available as a spare part. If the enclosure has broken or sheared plastic near any mounting point, the speaker cannot be repaired. Please contact QSC for alternative options. • If replacing the baffle, reuse the rectangular gasket that is installed along the edges of the baffle. Carefully re-align the gasket as it was previously installed so that air leaks do not form between the baffle and main enclosure.

  • Page 41: Service Updates

    XLR and 1/4” TRS combo jack. Loudspeakers manufactured before November 2013 (serial date codes of GJDxxxxxx or older) have a non-locking version of the jack. QSC changed the input connector to a locking version because all other connectors, including the IEC power inlet and XLR output jack, have a locking mechanism. Field complaints about XLR con- nectors detaching themselves from the jack due to natural vibrations in the speaker was another reason for changing to a locking version of the jack.

  • Page 42: Schematics And Pcb Images

    11. Schematics and PCB images 11.1 Schematic with notes (all models) THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS, THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM INPUT STAGE, SIGNAL PRESENCE, GAIN, INPUT SUMMING...
  • Page 43 THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS, THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM DSP, EEPROM, 3.3V REGULATOR Recommend a 10k pot for Remote Gain or any pot value within 2.5k to 50k.
  • Page 44 THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS, THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM 2-CHANNEL CLASS D AMPLIFIER AND PROTECTION D15&16: QD-000102-30 OLD REVISION: R77&R73: RE-111301-30 D15&16: NOT EXISTED C13&C14: CA-610021-30...
  • Page 45 THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY APPROVED/DATE OF QSC AUDIO PRODUCTS, THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM UNIVERSAL INPUT POWER SUPPLY QSC AUDIO PRODUCTS. QSC AUDIO PRODUCTS. QSC AUDIO PRODUCTS.

  • Page 46: Pcb Image With Notes (All Models)

    1: AGND; 2: CH1; 3: CH2; 4: TEMP; 5: FRONT LED FAN+; FAN- 6: AMP-SD; 7: +7V; 8: PGND; 9: -15V; 10: +15V PC-003311-00 K-SERIES BOARD - TOP SIDE - REV. D DATE: JULY 22th, 2010 REV.: B SHEET 1 OF 3 QSC Audio Products, LLC...
  • Page 47 J3 PINOUTS (2-WAY) J3 PINOUTS (SUB) 1: CH2 OUT- (YEL); 2: CH2 OUT+ (YEL/BLK) 1: CH2 OUT- (YEL); 3: CH2 OUT+ (YEL/BLK) 7: CH1 OUT- (GRN); 8: CH1 OUT+ (GRN/BLK) 7: CH1 OUT- (GRN); 8: CH1 OUT+ (GRN/BLK) 9: LED+ (WHT); 10: LED- (BLK) 9: LED+ (WHT);...

  • Page 48: Component Identification

    Part number and description Quantity CH-000850-01 HANDLE,,BLK,SPEAKERS, PA-00024x-01 GRILLE ASSY, WITH LOGO,BLK,,, For K8, use PA-000244-01 For K10, use PA-000245-01 For K12, use PA-000246-01 SB-00015x-TS FRONT BAFFLE SUBASSY,,,BLK,,, Includes baffle, L/R ports, LED, and wiring harness. For K8, use SB-000155-TS...

  • Page 49: Ksub Assembly Components

    Quantity SP-000182-00 WOOFER,,,12”,PAPER,FERRITE,K12/KW122 K12 only SP-000184-00 COMPRESSION DRIVER,,,1.75”,PETP,NEODYMIUM,K/ KW SERIES Same HF transducer for K8/K10/K12 WP-00331x-00 PCB ASSY,UNIVERSAL SUPPLY Includes PSU/amp and input/DSP boards together. Cannot be separated. For K8, use WP-003311-00 For K10, use WP-003312-00 For K12, use WP-003313-00...

  • Page 50: Bop Components

    XLR,COMBO,3 POS,FEMALE,VERTICAL W/LATCH Locking tab version only on later K models. CO-000414-00 SOB-XLR,COMBO,3 POS,FEMALE,VERTICAL W/OUT TAB Non-locking version only on early K models CO-000421-00 XLR,,3 POS,MALE,VERTICAL PLASTIC SHELL PL-000836-00 KNOB,,HOUSE OF K,PLASTIC,BLACK, PT-250006-00 GAIN,5K,20 PCNT,,21 DETENT, QSC Audio Products, LLC...
  • Page 51 Part number and description Quantity RE-000300-NR NTC,2.5 OHMS,8 AMPS,,,INRUSH LIMIT 90J SW-000088-GP ROCKER POWER SWITCH WP-000367-00 FAN ASSY,,BOP-2CH,, XF-000376-00 INDUCTOR,COMMON MODE,TOROID,4M- H,BOP,,50/60HZ 6.3A TD-000487-00 K Series Service Manual...

  • Page 52: Exploded View Drawings

    13. Exploded view drawings 13.1 K8 exploded view Item # Part Number Description 1 CH-001153-01 GRILLE, W/NO LOGO, BLK, K8, 1.0MM (assembly available) 2 CH-000850-01 HANDLE, , BLK, SPEAKERS, 3 CH-001142-01 THREADED INSERT, M5, STEEL, BLK OXIDE, , 4 CH-000870-00...

  • Page 53: K10 Exploded View

    31 PL-000622-01 PLUG, HORN, K10, , BLK, 32 PL-000624-01 FLARE, PORT, LEFT, , BLK, K10 33 PL-000658-01 LOGO, K8/K10, , , BLK, 34 PL-000677-01 FOOT, LONG, BTM, K10, , BLK, 35 PL-000679-01 FOOT, LONG, TOP, K10, , BLK, 36 QD-000312-GP...

  • Page 54: K12 Exploded View

    13.3 K12 exploded view WP-003304-01.DRW As Stored from PDMLink via ProductView March 26, 2012 11:40AM Drawing Release Level: Production User Name: Denise Delarm QSC Audio Products, LLC...
  • Page 55 K12 exploded view, continued Item # Part Number Description 1 CH-001151-01 GRILLE, W/NO LOGO, BLK, K12, 1.0MM (assembly available) 2 CH-000850-01 HANDLE, , BLK, SPEAKERS, 3 CH-001142-01 THREADED INSERT, M5, STEEL, BLK OXIDE, , 4 CH-000870-00 PLATE, HANDLE BACKING, , K-SERIES, 5 CH-001143-01 THREADED INSERT, M10, STEEL, BLK OXIDE, , 6 MS-000415-GP...

  • Page 56: Ksub Exploded View

    SCR, PHH, PHN, MACH, , , , M5, 20 L, STL CLASS 4.6, BLK, ZINC CR3, 24 SP-000183-00 WOOFER, 12", PAPER, FERRITE, KSUB 25 WC-000493-00 WIRE HARNESS, , , , KSUB, , 26 WP-003310-00 CHASSIS ASSY, MAIN, KSUB, , UNIVERSAL SUPPLY QSC Audio Products, LLC...

  • Page 57: Replacement Parts

    POWER CORD, 120V, IEC V-LOCK, 18AWG, 3M, , NEMA 5-15, , WC-000362-GP POWER CORD, 240V, IEC V-LOCK, 0.75MM, 3M, , CEE 7/7, , WP-003300-01 SPEAKER ASSY, 8", K8, BLK, , UNIV SPLY, FULL RNG, 2-WAY, PWRD 14.2 WP-003300-01, K8 speaker assembly Part Number Description Qty.

  • Page 58: Fg-003302-01 (120V) Or Fg-003322-01 (230V), K10

    SP-000184-00 COMPRESSION DRIVER, , , 1.75", PETP, NEODYMIUM, , K/KW SERIES Diaphragm available, SR-000145-00 WC-000456-00 WIRE HARNESS, , , , K8, , WP-003307-00 CHASSIS ASSY, MAIN, K8, , UNIVERSAL SUPPLY 14.3 FG-003302-01 (120V) or FG-003322-01 (230V), K10 Part Number Description Qty.

  • Page 59: Fg-003304-01 (120V) Or Fg-003324-01 (230V), K12

    FLARE, PORT, RIGHT, K10, , BLK, PL-000622-01 PLUG, HORN, K10, , BLK, PL-000624-01 FLARE, PORT, LEFT, , BLK, K10 PL-000658-01 LOGO, K8/K10, , , BLK, PL-000677-01 FOOT, LONG, BTM, K10, , BLK, PL-000679-01 FOOT, LONG, TOP, K10, , BLK, PL-000856-01...

  • Page 60: Wp-003304-01, K12 Speaker Assembly

    SCR, PHH, PNH, , , , , M5, 35 L, STL, BLK, ZINC CR3, SC-000288-00 SCR, PHH, PHN, MACH, , , , M5, 20 L, STL CLASS 4.6, BLK, ZINC CR3, SC-000300-00 SCR, PHH, PNH, MACH, , , , M5, 17 L, STL, BLK, ZINC CR3, QSC Audio Products, LLC...

  • Page 61: Wp-00330X-00, Bop Module Assembly (K8, K10, K12 Only)

    PCB ASSY, , K, , UNIVERSAL SUPPLY x is a wildcard 1 = K8, 2 = K10, 3 = K12 14.8 WP-00331x-00, BOP PCB assembly (K8, K10, K12 only) x is a wildcard. 1 = K8, 2 = K10, 3 = K12 Part Number Description Qty.
  • Page 62 RESET, MICROPROCESSOR, MAX809S, , IC-000279-30 COMPARATOR, DUAL, LM319, SMT, U2, U4 IC-000315-00 SENSOR, TEMPERATURE, LM19CIZ, , IC-000382-30 DSP 28/56 BIT, , ADAU1701, , IC-000407-30 EEPROM, 8KX8, 24C64A, SMT, I2C IC-000412-30 CONTROLLER, ACTIVE CLAMP PWM, UCC2893, SMT, QSC Audio Products, LLC...
  • Page 63 Part Number Description Qty. Reference Comment IC-000413-30 DRIVER, MOSFET HALF BRIDGE, IRS20957, SMT, U5, U7 IC-000420-30 VOLTAGE REGULATOR, +3.3V, NCP1117ST33, SOT223, IC-000425-30 OPTO COUPLER, TRANSISTOR OUTPUT, MOC205R2V-M, SMT, VDE APPROVAL IC-000431-30 VOLTAGE REGULATOR, +12V, LM78L12A, SO-8, IC-000505-30 COMPARATOR, DUAL, LM393A, SO-8, VIO = 2MV MAX MS-000115-30 FUSE, 1.0A, 24V, 1206, SLO F2, F3, F4...

  • Page 64: Fg-003306-01 (120V) Or Fg-003326-01 (230V), Ksub

    ASSEMBLY, POLE, 35MM, M20, , CO-000436-00 PLUG, EURO, 3 POS, MALE, GRN LB-000751-00 LABEL, GRILLE TAG, , KSUB, LB-000783-00 LABEL, CALIFORNIA CARB RULE, , , PM-000270-GP POLYBAG MANUAL, 240X360X0.05, , , , PM-000443-00 CARTON, SHIPPING, , KSUB, , 120V QSC Audio Products, LLC...

  • Page 65: Wp-003306-01, Ksub Speaker Assembly

    Part Number Description Qty. Reference Comment PM-000444-00 INSERT, TOP, , KSUB, , 120V PM-000445-00 INSERT, BOTTOM, , KSUB, , 120V PM-000449-00 POLYBAG, , , KSUB, 1120X500X.04MM, PM-000491-00 INSERT, , , KSUB, , PM-000516-00 BAG, , POLYPROPYLENE, K-SERIES, 800MM X 160MM, .3MM THK TD-000276-00 HOOKUP DRAWINGS, K-SERIES, TD-000337-00...

  • Page 66: Wp-003314-00, Ksub Bop Pcb Assembly

    0.1UF, 10 PCNT, 25V, CERAMIC X7R, 0805, C100, C106, C107, C118, C12, C120, C121, C138, C21, C26, C27, C3, C33, C39, C41, C47, C5, C63, C64, C68, C69, C70, C71, C74, C82, C83, C84, C85, C86, C90, C91, C92 QSC Audio Products, LLC...
  • Page 67 Part Number Description Qty. Reference Comment CA-410027-10 0.1UF, 5 PCNT, 100V, FILM, BOX STYLE, C109, C119 CA-468005-10 0.68UF, 5 PCNT, 100V, FILM, BOX, C125, C34, C35 CA-468006-00 0.68UF, 5 PCNT, 250V, POLYPROPYLENE, BOX, C116, C149 CA-468007-00 0.68UF, 20 PCNT, 250V, FILM, BOX STYLE, X2 CAP C101, C102 CA-510007-30 1.0UF, 20 PCNT, 16V, CERAMIC Y5V, 0805,...
  • Page 68 RE-211303-30 11.3K, 1 PCNT, 1/10W, THICK FILM, 0805, 100V R141 RE-214001-30 14.0K, 1 PCNT, 1/10W, THICK FILM, 0805, 100V R120, R130, R40, R41 RE-217803-30 17.8K, 1 PCNT, 1/10W, THICK FILM, 0805, 100V R124, R137, R176, R75 QSC Audio Products, LLC...
  • Page 69 Part Number Description Qty. Reference Comment RE-220002-30 20.0K, 1 PCNT, 1/10W, THICK FILM, 0805, 100V R104, R105, R111, R112, R84, R96, R97, R98, R99 RE-229402-30 29.4K, 1 PCNT, 1/10W, THICK FILM, 0805, 100V R150 RE-256002-10 56K, 5 PCNT, MINI-1W, METAL OXIDE, FP, R170 RE-263401-30 63.4K, 1 PCNT, 1/10W, THICK FILM, 0805, 100V...

  • Page 70: Contact Information

    Contact information Service manuals and other service documents are available for download from www.qscservice.com. If you need any further information regarding this service procedure, please contact QSC Technical Services at the addresses or numbers below. 1-800-772-2834 (within USA only) Telephone:...

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