Between production week 0123 to 0152, a new CD99 DA11 module is used in production. This new CD module uses LA6531 as servo driver IC. For servicing the sets which uses new CD module, please refer to the attached pages including: CD99 (LA6531) BOARD circuit diagram - RF & control part ............................14-3 circuit diagram - audio & supply part ........................14-4 layout diagram ..........................................................14-5 Electrical partslist ...............................................16-7 - 16-8