PHILIPS NTRX500 Mini Hi-Fi System – Circuit diagram – disassemble procedure - Exploded view
Used ICs: TDA8954TH / TDA8920CTH – D4558 – 74HCT04D – SA5888
– BU9543KV – EN25Q64 – MC3700 – UTC072 – D4556 – BU2090 – TDA7468 – HCF4052
Disassembly instructions
Remove 46 screws A/B/C/D/E/F/G as indicated to loosen the top/front/bottom plate.
Remove 8 screws H&I as indicated to loosen the CD part.
Remove 4 screws J as indicated to loosen the CD Board.
Remove 13 screws K and 8 screws L as indicated to loosen the Main Board.
Remove 4 screws M as indicated to loosen the SMPS power Board.
Remove 6 screws N as indicated to loosen the Amp Board.
Exploded view
Amp board circuit & PWB
Main board schematic
DSP board schematic
MCU board schematic
d schematic 
Click on the schematics to magnify
