Bang & Olufsen DVD 1 MKII, Service Center Repair Manual

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1.8
Final Check after repair
Insulation test
DVD 1 must be insulation tested if it has been dismantled.
Make the test when the DVD 1 is reassembled and is ready to be returned to the
customer.
Insulation test
- Short-circuit the two pins of the mains plug and connect them to one of the
terminals of the Insulation tester. Connect the other terminal of the insulation
tester to ground on the DIGITAL OUTPUT socket.
- To avoid damaging the DVD 1, it is essential to ensure that both terminals of the
insulation tester have good contact.
- Slowly turn up the voltage control of the insulation tester until a voltage of 2.5kV(ac) is
obtained.
- Maintain that voltage level for one second, then slowly turn it down again.
- During the testing the current must not exceed 10mA.
Please note:
Avoid all skin contact with the AC plug and all other metal parts while performing
the test, as this contact may influence the measurement.
Confirm picture and sound
DVD
Confirm the region setting is correct, use a DVD with the correct region.
CD
Confirm audio sound, use a CD.
Error log.
Clear the error log. Use the ServiceTool.
Customer setup.
Remember to inform the customer of any changes that has been made in the user
setup, due to service procedures, such as “Memory clear”.
Restore the customers setup.
Clean the DVD1.
Wipe dust off the surface off DVD 1 using a dry, soft cloth. If necessary, remove
grease stains or more persistent dirt with a firmly wrung soft cloth which you have
dipped in a solution of water containing a few drops of mild detergent.
Never use alcohol or other solvents to clean any part of DVD 1.
Final Check after repair, English