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MHC-V41D
42
4 SMPS Board Mount Diagnosis Flow
NO6501: pin 9 (MAIN ON)
Standby
Demo mode
Power on
Low (0 V)
Hi (3.3 V)
Hi (3.3 V)
NO6501:
pin 1 (A-supply),
pin 4, 5 (M-supply)
Standby
Demo mode
Power on
17.4 V ± 5 %
17.4 V ± 5 %
17.4 V ± 5 %
CN6500: pin 6 to 9 (V1)
58.5 V ± 5 %
58.5 V ± 5 %
58.5 V ± 5 %
Connect the power supply cord.
The voltage of the following is outputted.
No
Check whether the state of the power
supply cord and AC outlet are normal.
If there are no problems, check the
surrounding circuit for MAIN ON signal
output on the MOTHER board.
Yes
The voltage of the following is outputted.
No
No
Check the following 2 points.
)XVHV))KDYHEHHQQRW
opened.
$&SRZHUVXSSO\YROWDJHKDVEHHQ
applied to the varistor (VR6000).
Yes
End
Yes
5HSODFHWKHIXVHV))DQG
varistor (VR6000), and check the voltage
again.
Replace the SMPS board.
Summary of Contents for MHC-V41D
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