XL-HF202PH (serv.man6) - Sharp Audio Service Manual (repair manual). Page 7

XL-HF202PH/XL-HF302PH

2

 – 1

2) Tracking balance adjustment

1)

3)

[Version Check Method]

1. During Audio In function, press                button (main unit) then press and hold           button (main unit) until 
    software version display appears.

3. [Exiting Version Check]

   3.1. While in Version display, press ON / STAND-BY button (main unit).

   3.2.         

Since this CD system incorporates the following 
automatic adjustment functions, readjustment is not 
needed when replacing the pickup. Therefore, different 
PWBs and pickups can be combined freely.

Offset adjustment (The offset voltage between the head 
amplifier output and the VREF reference voltage is 
compensated inside the IC)
*   Focus offset adjustment
*   Tracking offset adjustment

Gain adjustment (The gain is compensated inside the 
IC so that the loop gain at the gain crossover frequency 
will be 0 dB.)
*   Focus gain adjustment
*   Tracking gain adjustment

Each time a disc is changed, these adjustments are 
performed automatically. Therefore, playback of each 
disc can be performed under optimum conditions.

2. Software version displays as below.

For model XL-HF202PH: “ XL-HF202 Vxxx ”

Vxxx : Software version

For model XL-HF302PH: “ XL-HF302 Vxxx ”

  

“RESET” appears at display. The unit will be reset before go to stand-by mode (demo).