Classe-CDP1-cd-sm维修电路原理图.pdf

RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 INSTRUCTIONS FOR MODIFYING DRAWER SPEED ON CLASS CDT-1, CDP-1 AND CDP-.5 1- Disconnect the unit from the AC line and entirely from the system. 2- Put the unit upside down to remove the four philips screws holding the cover. 3- Put the unit right side up and gently slide out the cover towards the rear to access the mechanism. 4- Gently slide out the plastic tray that holds the CDs. CAUTION: As the drawer moves out, the laser mechanism drops down. There are slots on each side to position the laser of the mechanism as it moves. Make sure that the laser assembly does not fall off its tracks. 5- Remove the 3 Philips screws that hold the mechanism to the chassis (See figure 1). 6- Carefully pull out the 2 connectors from the main PCB and slide back the CD tray. 7- Lift the CD mechanism up approximately 1/4 of an inch, then pull it back very slightly so that the mechanism is completely out of the front panel chassis. Then, remove the mechanism from the unit to access the motor and the PCB at the bottom of the mechanism. 8- Disconnect the positive wire (red wire) from the motor. 9- Solder this wire to one of the ends of the two resistors (2X 10 Ohms in parallel or 1X 5 Ohms) which are supplied. 10- Solder the other end of the resistor to the motor terminal from which the red wire was previously removed. CAUTION: Make sure that the resistors are soldered as close as possible to the motor terminal to avoid a possible short circuit with the motor case. 11- Carefully reconnect the 2 connectors to the main PCB while making sure that they are all the way in. 12- Reassemble unit by reversing steps 7 thru 1 and test unit for correct operation. INSTRUCTIONS FOR REPLACING THE CD MECHANISMS IN CLASSS CDT-1, CDP-1, CDP-.5 1- Disconnect the unit from the AC line and entirely from the system. 2- Put the unit upside down to remove the four Philips screws holding the cover. 3- Put the unit right side up and gently slide out the cover towards the rear to access the mechanism. 4- Gently slide out the plastic tray that holds the CDs. CAUTION: As the drawer moves out, the laser mechanism drops down. There are slots on each side to position the laser of the mechanism as it moves. Make sure that the laser assembly does not fall off its tracks. 5- Remove the 3 Philips screws that hold the mechanism to the chassis (See figure 1). 6- Carefully pull out the 2 connectors from the main PCB and slide back the CD tray. 7- Lift the CD mechanism up approximately 1/4 of an inch, and then pull it back very slightly so that the mechanism is completely out of the front panel chassis. Then, remove the mechanism from the unit. 8- Install the new mechanism by reversing steps 7 thru 1. CAUTION: Make certain that the connectors from the mechanism are inserted all the way into their respective receptacles on the main PCB. 9- Test unit for correct operation. Instructions for Eliminating Drawer Noise on the CDP-1. After removing the top cover, remove the CD tray. There are 2 tabs that you will need to press to fully release the tray to remove it completely. Once the tray has been removed, locate the tray motor and loading belt. Remove the tray belt and clean it with some alcohol. Also clean the motor pulley and the other pulley the belt rides on with alcohol as well. Replace the belt. On the tray and the chassis were the tray rides on put a Very small amount of grease. Replace the tray, and open and close the tray several times to work in the grease. This should rectify the problem.