
1 (E)
WLL-RX55
Table of Contents
Manual Structure
Purpose of this manual ........................................................................................ 5 (E)
Relative manuals ................................................................................................. 5 (E)
Contents ............................................................................................................... 6 (E)
1. Service Overview
1-1. Recomended Power Cord ...................................................................... 1-1 (E)
1-2. Connector Input/Output Signals ............................................................ 1-2 (E)
1-3. Connection Connector/Cable ................................................................ 1-5 (E)
1-4. Removing/Reinstalling the Exterior Parts ............................................. 1-5 (E)
1-4-1. Removing/Reinstalling the Top Cover ................................. 1-5 (E)
1-4-2. Removing/Reattaching the Rear Assembly ......................... 1-6 (E)
1-5. Board Location ...................................................................................... 1-8 (E)
1-6. Circuit Description ................................................................................ 1-9 (E)
1-6-1. TUN-10 Board ..................................................................... 1-9 (E)
1-6-2. RX-89 Board ........................................................................ 1-9 (E)
1-6-3. DEC-146 Board .................................................................. 1-10 (E)
1-6-4. DI-44 Board ....................................................................... 1-10 (E)
1-6-5. DR-524 Board .................................................................... 1-10 (E)
1-6-6. VA-220 Board .................................................................... 1-10 (E)
1-6-7. AT-156 Board ....................................................................1-11 (E)
1-6-8. AU-297 Board .................................................................... 1-11 (E)
1-6-9. PS-667 Board .....................................................................1-11 (E)
1-7. Settings of the Internal Switches ......................................................... 1-12 (E)
1-8. Flexible Card Wire .............................................................................. 1-17 (E)
1-8-1. Removing/Reinstalling the Flexible Card Wires ...............1-17 (E)
1-8-2. Forming the Flexible Card Wire ........................................ 1-19 (E)
1-9. Replacing the Internal Parts of the PS Assembly................................1-20 (E)
1-9-1. Replacing the Switching Regulator .................................... 1-20 (E)
1-9-2. Replacing the PS-667 Board .............................................. 1-21 (E)
1-9-3. Replacing the Fan ............................................................... 1-23 (E)
1-10. Replacing the EL Display and the DSP-108 Board ............................ 1-25 (E)
1-11. Replacing the Tuner and the TUN-10 Board ...................................... 1-26 (E)
1-12. Replacing the Boards .......................................................................... 1-29 (E)
1-12-1. Replacing the Card Boards .................................................1-29 (E)
1-12-2. Replacing the DI-44 Board and the DR-524 Board ...........1-30 (E)
1-12-3. Replacing the SW-1183 Board ...........................................1-30 (E)
1-13. Adjustments/Settings after Replacing the Boards and EL Display ..... 1-31 (E)
1-14. Settings after Replacing the EEPROM/NV-RAM .............................. 1-31 (E)
1-15. Writing and Rewriting the PLD Internal Data .................................... 1-32 (E)