5-3 Trouble shooting Chart
No display on LED, and buttons do not work
No
No
Yes
Yes
No display on LED, and
buttons do not work
Check XP3 pin14
It should be 5V
Check the main board SPI signal
(U20 :pin17,18,19)
Correct connection
Replace U301 or LED
Yes
NO
No
Check the front board
signals
VSCLK,VSDA,VSTB
(XP3 : pin9,10,11)
1.Check the LED board whether
bad solder exists on U301 and pins
of LED
2.Check whether the circuit
connected to S608, S609, S610,
S611 are broken.
Check Q751 in
main board
Replace Q751
Yes
NO
Replace Main Board
Summary of Contents for HTD3510/98
Page 3: ...1 3 ...
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Page 8: ...1 8 ...
Page 9: ...DFU Instrutions 2 1 ...
Page 10: ...2 2 ...
Page 11: ...2 3 ...
Page 12: ...2 4 ...
Page 13: ...2 5 ...
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Page 15: ...2 7 ...
Page 16: ...2 8 ...
Page 17: ...Detailed information please refer to the model set Figure 1 ...
Page 19: ...Software Upgrade Preference 4 1 ...
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Page 45: ...Block Diagram for main IC SPHE8203R 9 1 ...
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Page 52: ...Initial Release for HTD3510 12 Initial Release for HTD3510 51 98 93 X78 55 77 G94 ...
