Jbl ds 10 service manual
This is the 24 pages manual for jbl ds 10 service manual.
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Extracted text from jbl ds 10 service manual (Ocr-read)
Page 1
SAFETY INFORMATION Warning Any person performing service of this unit will be exposed to hazardous voltages and the risk of electric shock. It is assumed that any person who removes the amplifier from this cabinet has been properly trained in protecting against avoidable injury and shock. Therefore, any service procedures are to be performed by qualified service personnel ONLY! Caution This unit does not have a power switch. Hazardous voltages are present within the unit whenever it is plugged in. Before the amplifier is plugged in, be sure its rated voltage corresponds to the voltage of the AC power source to be used. Incorrect voltage could cause damage to the amplifier when the AC power cord is plugged in. Do not exceed rated voltage by more than 10%: operation below 90% of rated voltage will cause poor performance or may shut the unit off. Leakage/Resistance Check Before returning the unit to the customer, perform a leakage or resistance test as follows: Leakage Current. Note there is no power switch on this unit. When the power plug is plugged in, the unit is live. Connect the unit to its rated power source. Using an ammeter, measure the current between the neutral side of the AC supply and chassis ground of the unit under test. if leakage current exceeds 0.5mA, the unit is defective. Reverse the polarity of the AC supply and repeat. Resistance. Measure the resistance from either side of the line cord to chassis ground. If it is less than 500k ohms, the unit is defective. WARNING! DO NOTreturn the unit to the customer if it fails one of these tests until the problem is located and corrected. Critical Components All components identified with the IEC symbol in the parts list and the schematic diagram designate components in which safety can be of special significance when replacing a component identified with . Use only the replacement parts designated in the parts list or parts with the same rating of resistance, wattage or voltage. List of Safety Components Requiring Exact Replacements F1 Fuse SLO BLO 0.63A 250V T type. UL approved PWRCORD SPT-2 or better with polarized plug, UL approved wired with the hot side to fused side. Use with factory replacement panel strain relief only. TRX Transformer. Use only factory replacement. DBR Bridge diode. Use only factory replacement. C1, 2 3300uF, 50V electrolytic filter caps. Be sure replacement part is at least the same working voltage and capacitance rating. Also the lead spacing is important. Incorrect spacing may cause premature failure due to internal cabinet pressure and vibration. C6 10uF 50V20% Elect. Radial NPSafety Part See Page 15 Service Bulletin R29 4700.25W5% METAL OXIDESafety Part S53AMI Power Amp module. Use only factory replacement CMC1 mc4438Safety Part L1 mc4436Safety Part 2 Amplifier/SubwooferARC SUB10/DS-10
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3 Amplifier/SubwooferARC SUB10/DS-10 TABLE OF CONTENTS SAFETY INFORMATION ...............................................2 TABLE OF CONTENTS .................................................3 GENERAL SPECIFICATIONS .......................................3 DETAILED SPECIFICATIONS .......................................4 ARC SUB10/DS-10 CONTROLS AND THEIR FUNCTION .........................................................6 CAUTIONS AND WARNINGS .......................................7 ARC SUB10/DS-10 BLOCK DIAGRAM ........................9 SPEAKER CONNECTIONS .........................................10 TROUBLESHOOTING .................................................11 ARC SUB10 / DS-10 TEST SET UP AND PROCEDURE ...............................................................12 ARC SUB10 / DS-10 POWER AMP MODULE TESTING FLOW CHART ............................13SERVICE BULLETIN JBL9903 - APRIL 1999 ............14 SERVICE BULLETIN JBL2000-01 JANUARY 2000............................................................15 TROUBLESHOOTING TIPS AND SOLUTIONS TO COMMON SERVICE PROBLEMS ........................16 CABINET EXPLODED VIEWS ....................................17 AMPLIFIER EXPLODED VIEW ...................................18 ARC SUB10/DS-10 PACKING EXPLODED VIEWS...19 ARC SUB10 Version 5 PCB ........................................20 ARC SUB10/DS-10 Version 5.1 PCB..........................21 ARC SUB10/DS-10 ELECTRICAL PARTS LIST ........22 ARC SUB10/DS-10 INTEGRATED CIRCUITS & TRANSISTORS ............................................................23 ARC SUB10/DS-10 SCHEMATIC................................24 GENERAL SPECIFICATIONS Amplifier Power (RMS)........100watts Driver 10"..............High-Polymer Laminate Inputs................Line Level and Speaker Level Outputs...............Speaker Level (only active if Speaker Level Inputs are used) High-Pass Frequency.........High-Pass filter at 180Hz (only active if Speaker Level Inputs are used) Frequency Response.........50Hz - 150Hz (determined by crossover setting) ARC SUB10 DS-10 Dimensions (HxWxD)........11-1/2 x 17-1/8 x 16-1/2" 14-1/4 x 14-1/4 x 16" (292 X 435 X 419mm) (362 x 362 x 406mm) Weight................27lbs/12.3 kg 27 lbs/12.3kg