DK-KP95PH (serv.man3) - Sharp Audio Service Manual (repair manual). Page 6

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DK-KP95PH
2
 – 1
CHAPTER 2. ADJUSTMENTS
[1] CD Section
• Adjustment
Items adjusted automatically
2) Tracking balance adjustment
1)
3)
[2] Test Mode
[3] Standard Specification Of Stereo System Error Message Display Contents
SYSTEM PROTECT detection and AMP PROTECT detection display
In case AMP INT (INTERRUPT), SYSTEM PROTECT, FAULT or AMP ERROR has occurred, the unit will 
automatically enter to stand-by mode ON/Standby LED willl be flashing as below:- 
Example: In case of speaker abnormal
[Test Mode Input Method]
1. During power stand-by condition, press [1] -> [2] -> [4] -> [5] buttons at remote control sequently.
2. MCU will start up with software version display as below.
" KP95#yymmdd "
Press Function Key at Main unit
yy 
:  year (Ex, 11)
mm  :  month (Ex, July -> 07)
dd  :  day (Ex, 01)
RR  :  version (00 ~ 99)
:  area setting   H : Europe 
 
   
U : USA
Vxxxx : Servo F/W version 
MM.mm : Module F/W version 
##.##.##.##.##.## : MAC ID
" KP95 # 10RR "
Press Function Key at Main unit
" FmmddVxxxx "
Press Function Key at Main unit
" MM.mm "
Press Function Key at Main unit
" ##.##.##.##.##.## "
3. Press [OPEN / CLOSE] button at the main unit to enter the KEY Test Mode. 
4. The display will change as below for each main unit button is pressed.
[OPEN / CLOSE]  :  All displays light up with Dimmer Off
[TUNING DOWN]  :  Display "KEY 2-3" at display
[TUNING UP] 
:  Display "KEY 2-2" at display
[STOP] 
:  Display "KEY 1-3" at display
[PLAY / PAUSE] 
:  Display "KEY 2-1" at display
[FUNCTION] 
:  Display "KEY 1-2" at display
[VOLUME UP] 
:  Display "KEY 2-4" at display
[VOLUME DOWN]  :  Display "KEY 2-5" at display
5. [Exiting Test Mode]
   5.1. While in Version display or in Test Mode Function press ON / STAND-BY button (remote control / unit).
   5.2. All display light up in Dimmer Off (2sec) => Dimmer 1 (2sec) => Dimmer 2 (2sec) => finally display "Clear All"
         and execute reset, before go to standby (demo).
1. SYSTEM PROTECT 
2. AMP INT (INTERRUPT)
3. FAULT
4. AMP ERROR
OFF
FLASHING
ON
No.1
1 Frame
(Repeat)
OFF
OFF
( 3 Sec )
No.2
No.3
No.4
No.1
No.2
( 3 Sec )
( 3 Sec )
( 3 Sec )
OFF
ON
ON
OFF
FLASHING
ON
OFF
( 3 Sec )
( 3 Sec )
( 3 Sec )
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.
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