8
7. CLOCK part
A clock is needed for the main board of the INTERNET SET TOP BOX.
MCLK (65 MHz) and VCLK (25.18 MHz) are supplied to the ARM 7500,
and XOUT (14.318 MHz) is supplied to CH7001A.
The clock doubling chip, CH9294, connected to crystal takes the role.
8. SOUND OUTPUT part
SOUND OUTPUT is supplied from the ARM 7500 in digital and analogue types.
Analogue signals, R and L, are supplied to the external amplifier through
CS4333 SOUND ENCODER using the digital type stereo sound data and the clock.
9. POWER part
DC 5V is applied to the main part from the power module through CONN AS by operating SMPS.
The power LED is turned ON/OFF by receiving signals from the power module.
Detailed description should be added.
10. MODEM part
Data needs to be added by the vendor.
Picture of the external appearance and the wiring diagram
Main parts and PIN location
If the telephone function does not operate
If INTERNET connection does not operate
If the wireless keyboard/remote control do(es) not operate
If the PC input picture is flowing vertically.
If the wired keyboard/remote control do(es) not operate
If the power LED has on-and-off failure
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