Read Sharp DK-KP80PH (serv.man2) Service Manual online
DK-KP80PH
2
– 1
CHAPTER 2. ADJUSTMENTS
[1] CD Section
• Adjustment
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.
automatic adjustment functions, readjustment is not
needed when replacing the pickup. Therefore,
different PWBs and pickups can be combined freely.
Each time a disc is changed, these adjustments are
performed automatically. Therefore, playback of
each disc can be performed under optimum
conditions.
performed automatically. Therefore, playback of
each disc can be performed under optimum
conditions.
Items adjusted automatically
1) Offset adjustment (The offset voltage between the
head amplifier output and the VREF reference
voltage is compensated inside the IC)
voltage is compensated inside the IC)
* Focus offset adjustment
* Tracking offset adjustment
2) Tracking balance adjustment
3) Gain adjustment (The gain is compensated inside
the IC so that the loop gain at the gain crossover
frequency will be 0 dB.)
frequency will be 0 dB.)
* Focus gain adjustment
* Tracking gain adjustment
[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:-
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.
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.
" KP80#yymmdd "
Press Function Key at Main unit
yy :
year (Ex, 11)
mm : month (Ex, July -> 07)
dd :
dd :
day (Ex, 01)
RR : version (00 ~ 99)
# :
# :
area setting H : Europe
U
:
USA
Vxxxx : Servo F/W version
" KP80 # 10RR "
Press Function Key at Main unit
" FmmddVxxxx "
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]
[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. [Existing 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).
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
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 )
Click on the first or last page to see other DK-KP80PH (serv.man2) service manuals if exist.