QT-CD700W
12
CD SECTION
Since this CD system incorporates the following automatic adjustment function, when the pickup is replaced, it is not necessary tp readjust it.
Since this CD unit does not need adjustment, the combination of PWB and laser pickup unit is not restricted.
TEST MODE
LCD MODE
LASER LIGHTING CONFIRMATION
1. Remove the front cabinet according to the disassembly method.
2. Short the TP of the Figure 13-1 to turn on the CD DOOR switch (SW810).
3. While holding down the "Stop" and "RANDOM" button simultaneously, move the FUNCTION switch to "CD".
4. Open the CD DOOR and press the PLAY button. The laser lights up for a few seconds. (During this time, the pickup lens moves up and down and
adjusts the focus to check if there is a disc or not.)
PREPARATION FOR LASER LIGHT UP
1. Before the laser light up, CD DOOR switch (SW810) terminals have to be short with the solder. Resistor of 330ohm is put from 13 PIN of IC201A,
and you must connect it to GND of PWB. (Refer to PWB of Figure 13-1.)
Start
While holding down the “Stop” and “RANDOM” button simultaneously, move the FUNCTION switch to “CD”.
Note
1. When the CD DOOR switch is in the OFF position, i.e. CD DOOR is opened, the unit is now in test mode. Press the “UP/
F.FORWARD” and “DOWN/F.REVERSE” buttons to move the pickup back and forth.
2. The LCD display should be the same as it is for normal CD operations.
Operation
Pressing the “UP/F.FORWARD” button will move the pickup outward.
Pressing the “DOWN/F.REVERSE” button will move the pickup inward.
Start
After connecting the 10kohm resistor between IC201A 13 pin and GND, holding down the “Stop” and “RANDOM” button
simultaneously and move the FUNCTION switch to “CD”.
Display
1 ALL
PROG
RNDM
