PRO-150FD
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< Fundamental operation failure >
Doesn't "Home Media Gallery" on
"HOME MENU" become selectable
after power-on?
Note:
It takes a short while to start "Home
Media Gallery" function.
Please wait for about 40 seconds until
"Home Media Gallery" turns selectable.
Check each wire connection with the
MAIN ass'y.
[HN1]CN7851<=>[M35]CN4002
[HN2]CN7901<=>[M31]CN4111
Isn't there any failure?
"Home Media Gallery" does not work
at all!
There may be something defective in
the product.
Check the power supply for HNM ass'y.
Is there +5V voltage on 1st and 2nd pin
in CN7901 of HNM side and on 1st and
2nd pin in CN4111 of MAIN side?
Check the switching regulator circuit in
MAIN ass'y for HNM power supply.
That is IC4309, Q4304 and the parts
around it.
To make analysis, remove the wire
ass'y between CN7901 and CN4111.
Then, check the voltage in MAIN side
again.
Is +5V still not there?
There may be something defective in
HNM ass'y.
Replace the HNM ass'y with another
one.
There may be something defective in
MAIN ass'y.
Check the UART communication
between HNM ass'y and MAIN ass'y.
Almost 35 seconds after power-on, is
any pulse signal observed on 2nd pin
in CN7851: RXD_HNM?
Note:
After completing the self-initializing,
HNM ass'y notice it to MAIN ass'y by
using RXD_HNM.
There may be something defective in
MAIN ass'y.
Check the UART path in MAIN ass'y.
No
yes
yes
yes
No
No
No
No
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299