Service Manual

MM-E 2072-09333-00
3-15
No
Turn up the volume
and proceed to
step 6 of checkout
Yes
6
Check that
the volume is at
midrange or beyond
Voltage present?
Yes
No
Using an AC
voltmeter, check for
audio voltage on J5
pins 1 and 3
Problem is with the LORD module.
Replace or repair as necessary.
Proceed to step 6 of the checkout
Verify the condition of the
flat cable from the LORD module to
the front panel CONTROL HEAD
module using an ohmmeter
Cable good?
Replace cable and
proceed to step 6
of checkout
No Yes
Check for audio at the
speaker connection on
the front panel connector
Audio present?
Replace defective speaker
and proceed to step 6 of
checkout
Yes
Problem is in the CONTROL HEAD
module. Replace or repair as
necessary. Proceed to step 6 of the
checkout
No
From Checkout Step
Figure 3-6. MICOM-Z Troubleshooting Chart 5
No
Turn up the volume
and proceed to step 7
of checkout
Yes
7
Check that
the volume is at
midrange or beyond
Problem is with the LORD module.
Replace or repair as necessary.
Proceed to step 7 of the checkout
From Checkout Step
Figure 3-7. MICOM-Z Troubleshooting Chart 6