20.1.1. Firmware and Key Download
20 Basic Troubleshooting Guide
20.1. 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
91
SA-HT640WP / SA-HT640WPC
Содержание SA-HT640WP
Страница 7: ...7 SA HT640WP SA HT640WPC ...
Страница 10: ...10 SA HT640WP SA HT640WPC ...
Страница 16: ...16 SA HT640WP SA HT640WPC ...
Страница 19: ...8 2 Detail Block Diagram Receiver module 19 SA HT640WP SA HT640WPC ...
Страница 31: ...31 SA HT640WP SA HT640WPC ...
Страница 37: ...10 1 Disassembly Flow Chart 10 2 Main Components and P C B Locations 37 SA HT640WP SA HT640WPC ...
Страница 45: ...Step 3 Push tray assembly to the direction of arrow shown 45 SA HT640WP SA HT640WPC ...
Страница 58: ...SA HT640WP SA HT640WPC 58 ...
Страница 66: ...SA HT640WP SA HT640WPC 66 ...
Страница 68: ...68 SA HT640WP SA HT640WPC ...
Страница 78: ...SA HT640WP SA HT640WPC 78 ...
Страница 84: ...SA HT640WP SA HT640WPC 84 ...
Страница 86: ...SA HT640WP SA HT640WPC 86 ...
Страница 95: ... SMPS stands for switching mode power supply 95 SA HT640WP SA HT640WPC ...
Страница 102: ...21 3 4 2 Receiver Module P C B 102 SA HT640WP SA HT640WPC ...
Страница 104: ...23 Explode Views 23 1 Cabinet Parts Location 104 SA HT640WP SA HT640WPC ...
Страница 105: ...105 SA HT640WP SA HT640WPC ...
Страница 106: ...106 SA HT640WP SA HT640WPC ...
Страница 107: ...23 2 Packaging 107 SA HT640WP SA HT640WPC ...