22.1.1. Firmware and Key Download
22 Basic Troubleshooting Guide
22.1. Basic Troubleshooting Guide for DVD Module
e) Check SDRAM addresand data bus, CLK and
IC8051
other control signals waveform
c) Check reset signal and power voltage rise time
IC8601
d) Check Flash ROM address and data bus
IC8651
1) Firmware downloading
fails
a) Check supply voltages on ICs pins
IC8111, IC8651, IC8001, IC8051, IC8151
2) CPPM/CPRM key
download fails
b) Check Oscillation frequency and level
X8621 , C8621 , C8622 , R8621 , R8622
Problems
Checking Points
Checking components
f) Check EEPROM CLK & data line
IC8611
*Compare the above with OK condition
Module
*Check for solder short and/or
component missing/damaged
93
SA-HT441WP
Summary of Contents for SA-HT441WP
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Page 15: ...7 3 Using of Music Port 1 AC IN MUSIC PO RT MONO ST E AC G H B SR H W 15 SA HT441WP ...
Page 21: ...8 1 2 Tips on using digital transmitter SH FX60T 21 SA HT441WP ...
Page 22: ...8 2 Using the XM Satellite Radio 22 SA HT441WP ...
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Page 34: ...10 1 Disassembly Flow Chart 34 SA HT441WP ...
Page 35: ...10 2 Main Components and P C B Locations 35 SA HT441WP ...
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Page 103: ...25 Explode Views 25 1 Cabinet Parts Location 103 SA HT441WP ...
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Page 106: ...25 2 Packaging 106 SA HT441WP ...