Rautz HC-7852UX Service Manual - page 15
Manual is about: Digital Home Cinema System
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Trouble Shooting Guide
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START
1. INITIAL OPERATING
Check Connection CN701.
Check Power Supply.
Is Supply
S_5.3V?
Is Standby
LED on?
Is Power on?
Check if
display the
Logo on TV.
Check
interface of
VFD Driver
Initial Operation OK.
Check VFD Data Interface.
VFD_DATA/CLK.
Replace Front PCB Ass'y.
Check data line between IC501
and 601.
Replace Flash Memory & SDRAM.
No
No
No
No
No
Yes
Yes
Yes
Yes