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SH-D505
TROUBLE SHOOTING TABLE (Continued)
First make sure of the following points.
The AC power cable is plugged in.
The power is switched on and the unit's power LED stays on.
The output mode switch is properly set according to a monitor
to be connected.
→Refer to "VIDEO CONNECTIONS" of the Operation Manual.
The video and audio cables are correctly connected.
Make sure of the following points: selected
channel number displayed on screen, antenna
cable properly connected, reception condition
by HDTV indicator on front panel.
Is the HDTV indicator either on or off (not
flashing)?
Select a channel without DTV program.
Is the HDTV indicator flashing?
Select a channel with DTV program again. (Make
sure the indicator stays on or goes out.)
68
No video output, no audio output
Can a channel be selected (channel number displayed on screen)?
YES
Check the D5207 and D5208 on the main PWB.
Green LED off, red LED off.
Check the following parts.
ST20 (IC5201), DRAM (IC5207 , IC5208), ROM (IC5222), Flash (IC5203 ~ IC5206)
YES
1) Slow flashing
There is no DTV program available for a selected major channel, or if any, the
signal reception condition is too bad to receive clearly.
→ Select another channel with DTV signal and try again.
2) Quick flashing
There is a DTV program available for a selected major channel, but the signal
reception condition is too bad to receive clearly.
→ Select another channel with DTV signal and try again.
YES
A
NO
NO
NO
ST20 (IC5201) malfunctioning
Turn off the power and turn it on again. If the ST20
still malfunctions, check the ST20 (IC5201) for trouble.
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