TAG MCLAREN AUDIO 100 5R Series, Руководство по обслуживанию

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F3 series 100X5R service manual 12
5.1fault finding flow chart:
5.2 Test equipment required
Equipment Specification
Digital Multimeter Accuracy better than 0.5% in V and mV ranges
Oscilloscope Bandwidth >100 MHZ
Various Leads
With faulty modules the uC control can be bypassed by disconnecting the 6-way ribbon from the Module Under
Test (MUT). With this disconnected the uC will no allow mains to the module as it believes it to be not fitted.
Also the output relay will not close as it requires a pull down to ground to operate. Therefore both the ribbon
cable and the respective connector need linking out:
Ribbon: Link pins 2 & 6
Header: Link pins 2 & 4
N.B. Be aware, the protection is now not operational, and prolonged abuse of the module will result in
damage.
5.3 Functional test procedure
No Action Test Equipment Details
4.2.1 Disconnect all
cables from
amplifier
4.2.2 Check voltage Read ratings label on rear of
setting amplifier
4.2.3 Check fuse type Open fuse holder in power socket on
rear panel.
Rated supply Fuse Type
230 V AC
T1AL 250V
115V AC T1A 125V
100V AC T1A 125V
4.2.4 Check fuse Multimeter set Fuse and spare fuse should be low
resistance to O resistance
4.2.5 Remove unit See Section 3.0
cover
4.2.5 Check fuses F1- Multimeter set Fuses are on the MicroController PCB
F7 to O