Read Sharp GX-M10H (serv.man3) Service Manual online
GX-M10H
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
[Test Mode Input Method]
1. During power stand-by DEMO ON 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 (main unit).
5.1. While in Version display or in Test Mode Function press ON / STAND-BY button (main unit).
5.2.
2. MCU will start up with software version display as below.
" GX# ymdd$ "
Press EQ/X-BASS Key at Main unit
y : year ( in Hexa code. Eg: 2012 C )
m : month ( in Hexa code. Eg: 07 7, 10 A )
dd : day (Eg: 01)
$ : A, B, C, ...... Z
m : month ( in Hexa code. Eg: 07 7, 10 A )
dd : day (Eg: 01)
$ : A, B, C, ...... Z
RR : version (00 ~ 99)
# : area setting H : Europe
U : USA
Vxxxx : Servo F/W version
# : area setting H : Europe
U : USA
Vxxxx : Servo F/W version
" GX#_10RR "
Press EQ/X-BASS Key at Main unit
Press EQ/X-BASS Key
at Main unit
" 618Vxxxx "
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.
[TUNER / AUDIO IN] : Display "KEY 2-1"
[PRESET DOWN]
: Display "KEY 6-3"
[PRESET UP]
: Display "KEY 6-4"
[USB PLAY / PAUSE] : Display "KEY 3-1"
[VOL UP]
: Display "KEY 6-6"
[STOP]
: Display "KEY 6-1"
[CD PLAY / PAUSE]
: Display "KEY 4-1"
[VOLUME DOWN] : Display "KEY 6-5"
[iPod PLAY / PAUSE] : Display "KEY 5-1"
[EQ / X-BASS]
: Display "KEY 6-2"
All display light up in Backlight On (2sec) => Backlight Off (2sec) => finally display "RESET" and execute reset,
before go to standby (demo).
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
)
c
e
S
3
(
)
c
e
S
3
(
( 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:-
Click on the first or last page to see other GX-M10H (serv.man3) service manuals if exist.