TAG MCLAREN AUDIO 100 5R Series User manual

amplifier 100x5R
service manual

F3 series 100X5R service manual
Notification for new issues of the F3 series 100X5R
service manual will be given via the TAG McLaren
Audio web site:- www.tagmclarenaudio.com.
issue number :- GRP0000?.01
issue date :- 20.01.2000
introduction
No part of this document may be reproduced or transmitted in any form or by any means,
electronic or mechanical, for any purpose, without the express written permission of TAG McLaren
Audio Limited.
This manual is for the exclusive use of TAG McLaren Audio, its approved distributors and
approved UK service agents. No part of this manual shall be transferred to any other party
without the express written permission of TAG McLaren Audio Limited.
It is the responsibility of the user to ensure that all the information contained in this manual is
current. Notification for new issues of this manual and minor updates will be given via the TAG
McLaren Audio web-site or on request.
This manual has been prepared with the greatest care, it is intended for information only and no
liability shall be accepted for errors or changes to specification.
For further service information, parts lists and updates, please contact our web-site at
www.tagmclarenaudio.com.
© 1999 TAG McLaren Audio Limited. All rights reserved.

F3 series 100X5R service manual
index
1.0 safety and servicing notes
1.1 Safety precautions ........................................ 1
1.2 Electrostatic discharge precautions ............................ 1
1.3 Soldering .............................................. 2
2.0 front and rear panel layouts
2.1 Front panel controls ...................................... 4
2.2 Rear panel connections .................................... 4
3.0 disassembly instructions
3.1 Removing case and fascia .................................. 5
3.2 Removing components .................................... 5
4.0 technical outline
4.1 Technical description ...................................... 7
4.2 50 way IDC harness ...................................... 8
4.3 Desciption of pins J1 ...................................... 9
4.4 100X5R block diagram ................................... 10
5.0 functional tests
5.1 Fault finding flow chart ................................... 11
5.2 Test equipment required .................................. 12
5.3 Functional test procedure ................................. 12
5.4 Biasing modules ........................................ 13
5.5 Adding modules ........................................ 13
6.0 performance tests
6.1 Test equipment required .................................. 14
6.2 Performance test procedure ................................ 14
7.0 upgrading software
7.1 Equipment required ...................................... 16
7.2 Upgrading software procedure .............................. 16
8.0 diagnostics
8.1 Upgrading software diagnostic messages ...................... 17
8.2 Resetting parameters ..................................... 17
9.0 circuit schematics
9.1 100X5R LED PCB - 1 sheet ................................ 18
9.2 100X5R IR PCB - 1 sheet .................................. 18
9.3 100X5R uC PCB - 3 sheets ................................ 19
9.4 100X5R AMP PCB - 2 sheets ............................... 22
9.5 100X5R TAG BUS PCB - 1 sheet ............................ 24
10.0 printed circuit board layout
10.1 100X5R LED PCB ....................................... 25
10.2 100X5R uC PCB ........................................ 26
10.3 100X5R TAG BUS PCB ................................... 26

F3 series 100X5R service manual
10.4 100X5R IR BUS PCB ..................................... 26
10.5 100X5R LED PCB ....................................... 26
11.0 technical data
11.1 100X5R Technical specifications ............................. 27
11.2 International Standards ................................... 28

F3 series 100X5R service manual 1
CAUTION : to reduce the risk of fire, replace the same type fuse and rating
ATTENTION : utiliser un fusible de rechange de meme type et calibre
230V : T1AL/250V
115V : T1A/125V
100V : T1A/125V
1.0 safety and servicing notes
1.1 Safety precautions
1. This unit is Class II, which means that it is not connected to the protective earth
system. All live voltages are insulated from the case by double insulation.
2. Do not attempt to service unless qualified to do so.
3. Disconnect unit from AC power supply before removing cover.
4. Components marked with the symbol on the circuit schematic are safety critical
and must only be replaced with an identical component, or an alternative approved
by the manufacturer.
5. Switch unit off, and disconnect from supply before making and breaking any
connections.
6. Do not adjust any controls unless instructed to do so in this manual.
1.2 Electrostatic discharge precautions
Electrostatic discharge (ESD) is due to charges produced by insulating materials rubbing together.
Humans collect electrostatic charge through normal activities when clothes rub together and when
walking on carpet. This charge may be discharged suddenly when you touch a conductor. If the
conductor is connected to a sensitive electronic circuit, you may damage the components. It is also
possible to reduce the life of components without causing any obvious damage.
To prevent ESD damage to TAG McLaren Audio units, it is necessary to follow these guidelines.
1. Prepare work area. Place an ESD protective mat on the bench, strapped to the
protective earth circuit.
2. Prepareyourself. Put on an ESD protective wrist band, strapped to the protective
earth circuit, or to the ESD protective mat.
3. Keep all PCBs removed from unit in ESD protective bags.
4. Keep all replacement electronic components, PCBs and stock items in ESD
protective bags or boxes.
5. Be particularly careful with components marked with the following symbol:

F3 series 100X5R service manual 2
1.3 Soldering
How to de-solder components
Components should be removed, wherever possible, using a de-soldering
tool. Be careful not to damage tracks and pads by applying too much
pressure.
How to make good solder joints
1. Ensure surfaces are clean.
2. Keep soldering iron clean and wetted with solder. Use
an appropriate bit. Do not leave soldering iron on when
not in use.
3. Apply soldering iron to both component lead and pad
beforeapplying solder. Make sure that the soldering
iron is applied long enough for the solder to wet
properly, but do not apply for too long or component
damage may occur.
4. Allow a small gap between component body and pad.
Solder must not reach the base of the component.
How to detect acceptable joints
1. Solder joints should have from a shiny to satin lustre and
a generally smooth appearance.
2. Solder should have wetted both the component lead
and pad.
3. There should be a concave meniscus between the
objects being soldered. The angle of solder to pad
should be less than 90Eunless the solder joint extends
over the edge of the pad.
4. Solder should fill the component pad and wet
component lead around the full circumference (360E).
How to detect unacceptable joints
1. Poor wetting produces a bead of solder. The fillet will be convex instead of concave,
and there will not be a feather edge.
2. On double-sided PCBs, solder should wet all round plated-through hole, on both
sides of the PCB.

F3 series 100X5R service manual 3
Cleaning up after soldering
1. Flux is very corrosive. Remove with IPA (propan-2-ol) before completing the job.
2. Remove any solder balls and splashes from the unit.
3. Check all new solder joints and ensure all PCBs are clean before replacing covers.
4. After replacing covers, clean the case and any display windows with a damp cloth.
Do not use any organic solvents. If scratched, replace display windows.

F3 series 100X5R service manual 4
2.0 front and rear panel layouts
2.1 front panel controls
2.2 rear panel connections

F3 series 100X5R service manual 5
3.0 disassembly instructions
To protect the unit, place on 2 foam blocks during disassembly and reassembly.
3.1 removing case and fascia
Remove cover
!Place unit on bench - rear panel facing you
!Remove cover’s 9 fixing screws
!Pull cover towards the rear of the unit gently whilst carefully pulling bottom sides out
a little
!Lift cover slightly at the rear panel, then pull cover gently towards you
Remove front panel assembly
!Disconnect the LED PCB and the IR PCB from the wiring loom.
!Place unit on bench - top up, fascia facing you
!Remove the 5 screws attaching the front panel assembly to the modules.
!Turn the unit over and remove the 4 screws fixing the assembly to the chassis
!Gently pull the front panel assembly away from the chassis, taking care with the 2
way wire to the On/Off switch.
Remove module
!Disassemble the mains wiring and ribbon from the module. Unscrew the connector
bracket and the M4 screw attached to the rear panel, taking care with the M3 nut
fixing the 10n capacitor.
!Turn the unit over and remove the M4 fixing screws.
!The Module is now free of the chassis.
3.2 removing components
Remove microcontroller PCB
CAUTION HIGH VOLTAGES
!Remove 6 fixing screws from PCB to chassis connectors on rear panel
!Lift top edge over to gain access to the rear of the PCB.
!To fully remove, disconnect all connectors and desolder mains wiring harness.
Remove IR/LED PCB
!Remove 2 fixing screws from PCB to front panel and PCB to ribbon connectors.
!Take care when re-fitting the LED PCB as the LEDs must be carefully aligned to the
holes if they are to fit easily without scratching their edges.

F3 series 100X5R service manual 6