JBL SUB500, Service Manual

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Parameter Specification Unit
QA Test
Limits Conditions Notes
Power on Delay time 3 sec.
functional AC Power Applied
Transients/Pops
ATO Transient 5 mV-peak 10 @ Speaker Outputs
Turn-on Transient 50 mV-peak
100 @ Speaker Outputs AC Line cycled from OFF to ON
Turn-off Transient 50 mV-peak 100 @ Speaker Outputs AC Line cycled from ON to OFF
Efficiency
Stand-by Input Power 14 Watts 15 @ nom. line voltage
Maximum allowable input power under
nominal Input voltage and frequency,
HOT or COLD operation.
Power Cons.@rated power 250 Watts 260 @ nom. line voltage 150 Watts @ 4 Ohms nominal line voltage
Protection
Short Circuit Protection YES -- functional Direct short at output
Thermal Protection 65 deg. C -- functional @1/8 max unclipped Power
Temperature rise should not exceed 35K
rise
DC Offset Protection YES --
functional DC present at Speaker Out leads
Relay or crowbar (for driver/fire
protection)
Line Fuse Rating
US Version 2.5 Amps Type-T or Slo Blo
External fuse with UL/SEMKO rated
holder
EU Version 1.6 Amps Type-T or Slo Blo
External fuse with UL/SEMKO rated
holder
SUB500 (SCS500.5 Subwoofer)
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