Arcam DiVA DT81 Посібник з експлуатації - Сторінка 4
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Також для Arcam DiVA DT81: Посібник (12 сторінок)
Друкувати сторінкуFault
No power
No Audio output
Fails to respond to commands
No Display
Spurious display readout
Display reads "ERROR CIP FAILURE"
Display reads "NO SERVICE FOUND"
Position
TP1
TP2
TP3
TP4
TP5
TP6
TP7
!
No analogue signal - measure between the junction of D10, D11 and D8, D9 for the
secondary supply feed from the transformer, this should be 40 VAC. If this is low or missing
the transformer will require replacing.
!
Not responding to front panel controls – check the processor is ok by pressing the bypass
button, if the bypass relay functions then check the DAB module supplies are ok. If ok then
replace the DAB module.
!
Please note that there are no serviceable parts within the DAB module.
DT81 Service Guide
Fault diagnostics
Action
Check mains fuse
Check power supply rails
Check for digital output
Check analogue power supply voltages
Check DAC IC
Check supply voltages
Check DAB module
Check flex foil cable
Check for dry joints on micro and display
Check for dry joints on display board
DAB module not communicating with main micro – replace
DAB module
DAB module not receiving signal – check connections to
DAB module/ replace DAB module
Power supply test points
Voltage
0 volt reference
+5 volts - DAB module
+10 volts - DAB module
+5 volts - DAC
+15 volts
-15 volts
+5 volts
Hints & tips