APP-II
J-Type
Revision J2005-2
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CADAC 8019 and 8020 switch-mode power supply units were introduced during
November 1998. The a.c. input supply has been ‘standardised’ at 208V to 240V 50/
60Hz.
The 8019 “18V” unit is rated at 100A per rail and the 8020 “13V” unit is rated at 100A.
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The 8019 ±18v unit is based on two ADVANCE F20006 ‘power-blocks’, with addi-
tional circuitry as shown on CADAC drawing number C3.8015.
The a.c. input is connected to the PSU via a 3-core cable, CMA reference 3183TQ –
BASEC approved, rated at 20A.
Under no circumstances, should the 8019 PSU be used without a SAFETY EARTH
connection.
Failure to follow this instruction is both a fire and safety hazard.
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You will need CADAC drawings 8015 and 8023A.
TEST EQUIPMENT: Digital volt-meter, probe (must not be referenced to mains
earth), insulated adjustment tool.
WARNING! DO NOT remove cover unless you are qualified to service the parts
underneath it. UNDER NO CIRCUMSTANCES should anyone attempt to remove the
covers of the power blocks.
1.
Place the power supply on a flat surface and remove the top cover. Connect a
load to an O/P connector that is capable of drawing 40A per rail. The load must
draw the same current from each rail.
2.
Turn on the PSU and press the START button.
3.
Put probe on the -18V O/P cap and adjust the O/P adjuster on the -18V block
until the volt meter reads -18.00 ±0.05V.
4.
Move the probe to the +18V cap and adjust the +18V block so that the volt meter
reads +18.00V ±0.05V.
5.
Move the probe to either TP1 and TP2 (0V) on the front panel mounted control
card 8023, or to PIN 8 and PIN 3 (0V) on the 9-pin ‘D’-connector on the front
panel. Adjust the front panel mounted “offset adjust” pot to as close to 0.00V as
possible. Replace the top cover.
Fault-finding tests:
6.
Check the green LEDs (Mains OK and O/P OK on the power blocks. These
LEDs should illuminate when the push to start button is pressed.
7.
If either of the red LEDs “over-voltage” or “current limit” are illuminated, return
the power block for replacement. NOTE: DO NOT attempt to service the blocks.
Lethal DC-voltages are exposed underneath cover.
8.
If MAINS OK LED does not come on, check the fuse. The fuse should only be
replaced with a 10A HBC TYPE T fuse.
9.
If MAINS OK LED is illuminated but O/P OK LED is not, check that the 15-way
‘D’- connector on the PSU-block is tightened. Check that the connector on the
8023 control card (on front panel) is pushed in all the way.
10. If the O/P OK LED still does not light, remove 15-way ‘d’-connector and link pins
9 and 10 on the PSU. If the PSU starts, the 8023 card or its wiring is faulty. If the
PSU is still not working, it should be returned to the factory.
Summary of Contents for J-Type
Page 1: ...Audio Mixing Console 056 6 10 n 95 4 1 07 g8 2...
Page 4: ...iv Table of contents J Type Revision J2005 2...
Page 6: ...vi General Precautions Revision J2005 2 J Type...
Page 8: ...viii Introduction J Type Revision J2005 2...
Page 72: ...3 22 7496 Dual Input Channel J Type Revision J2005 2...
Page 86: ...3 36 7830 Dual input channel J Type Revision J2005 2...
Page 96: ...4 10 7925 Programmable Group Module J Type Revision J2005 2...
Page 102: ...4 16 7972 Programmable Aux Groups Module J Type Revision J2005 2...
Page 110: ...4 24 7548 Programmable Routing Slave Mod Mk II J Type Revision J2005 2...
Page 146: ...6 14 7106 Quad Panning module J Type Revision J2005 2...
Page 154: ...7 8 6910 Oscillator PFL Stereo Aux module J Type Revision J2005 2...
Page 188: ...8 16 7956 DC Master Motor fader J Type Revision J2005 2...
Page 200: ...INDEX 4 J Type Revision J2005 2 W Wiring the switches 1 6 X XLR connections APP I...