Read Sharp XL-HF401PH (serv.man5) Service Manual online
XL-HF401PH
2
– 1
CHAPTER 2. ADJUSTMENTS
[1] CD Section
• Adjustment
Items adjusted automatically
2) Tracking balance adjustment
1)
3)
[2] Test Mode
[Test Mode Input Method]
1. During power stand-by condition, press [1] -> [2] -> [4] -> [5] buttons at remote control sequently.
1. During power stand-by condition, press [1] -> [2] -> [4] -> [5] buttons at remote control sequently.
5. [Exiting Test Mode]
5.1. While in Version display or in Test Mode Function press ON / STAND-BY button (remote control / unit).
5.1. While in Version display or in Test Mode Function press ON / STAND-BY button (remote control / unit).
5.2.
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.
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
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
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.
performed automatically. Therefore, playback of each
disc can be performed under optimum conditions.
2. MCU will start up with software version display as below.
" HF401# yymmdd$ "
Press Function Key at Main unit
yy
: year (Ex, 11)
mm : month (Ex, July -> 07)
dd : day (Ex, 01)
$ : A, B, C, ...... Z
dd : day (Ex, 01)
$ : A, B, C, ...... Z
RR : version (00 ~ 99)
#
#
: area setting H : Europe
U : USA
Vxxxx : Servo F/W version
MM.mm : Module F/W version
##.##.##.##.##.## : MAC ID
" HF401# 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] : Display "KEY 2-4" at lower line display
[PRESET DOWN] : Display "KEY 2-5" at lower line display
[PRESET UP] : Display "KEY 2-6" at lower line display
[PRESET DOWN] : Display "KEY 2-5" at lower line display
[PRESET UP] : Display "KEY 2-6" at lower line display
[STOP] : Display "KEY 2-3" at lower line display
[PLAY / PAUSE] : Display "KEY 2-2" at lower line display
[FUNCTION] : Display "KEY 2-1" at lower line display
[PLAY / PAUSE] : Display "KEY 2-2" at lower line display
[FUNCTION] : Display "KEY 2-1" at lower line display
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).
execute reset, before go to standby (demo).
[3] Standard Specification Of Stereo System Error Message Display Contents
SYSTEM PROTECT detection and AMP PROTECT detection display
Example: In case of speaker abnormal
1 : SYSTEM PROTECT
2 : AMP Over Temperature Warning Protect
3 : AMP Shut Down Protect
4 : FAULT
2 : AMP Over Temperature Warning Protect
3 : AMP Shut Down Protect
4 : FAULT
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 )
In case AMP Shut Down, SYSTEM PROTECT, FAULT PROTECT or AMP Over-Temp Warning Protect has occurred,
the unit will automatically enter to stand-by mode ON/Standby LED willl be flashing as below:-
the unit will automatically enter to stand-by mode ON/Standby LED willl be flashing as below:-
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