Sony HCD-GN90D Service Manual page 24

HCD-GN90D/GN100D
[1] 1Tj FWD
: 1 track jumps forward.
[2] 1Tj REV
: 1 track jump reverse.
[3] 500Tj FWD : 500 tracks jump (fine search) forward.
[4] 500Tj REV : 500 track jump (fine search) reverse.
[5] 10kTj FWD : 10k track jump (direct search) forward.
[6] 10kTj REV : 10k track jump (direct search) reverse.
[7] 20kTj FWD : 20k track jump (direct search) forward.
[8] 20kTj REV : 20k track jump (direct search) reverse.
[10/0]
: All servo off.
2-4. Non EEPROM Write Adjust
Non EEPROM Write Adjust
1. Focus Offset
2. Focus Gain
3. Trk. Offset Coarse
4. Trk. Offset Fine
5. Trk. Gain
6. EQ Boost
0.All Servo Off
On this screen, each item can be adjusted manually. Select the desired
number [1] to [10/0] from the remote commander, and current setting
for the selected item will be displayed, then increase or decrease
numeric value with the button or
O
in the EEPROM. If CLV has been applied, the jitter is displayed for
reference for the adjustment.
[1] Focus Offset : Adjusts focus offset.
[2] Focus Gain
: Adjusts focus gain.
[3] TRK. Offset : Adjusts tracking offset of the RF amp
(IC001) side.
[4] TRK. Offset : Adjusts tracking offset of the DSP
(IC401) side.
[5] TRK. Gain : Adjusts track gain.
[6] EQ Boost : Adjusts amount of boost of equalizer.
[10/0] : All servo off.
2-5. EEPROM Write Adjust
EEPROM Write Adjust
1. Focus Offset
2. Focus Gain
3. Trk. Offset Coarse
4. ——————
5. Trk. Gain
6. EQ Boost
0.All Servo Off
On this screen, each item can be adjusted automatically. Select the
desired number [1] to [10/0] from the remote commander, and
selected item is adjusted automatically.
24
Exit: RETURN
button. This value is stored
o
Exit: RETURN
[1] Focus Offset : Adjusts focus offset.
[2] Focus Gain : Adjusts focus gain.
[3] TRK. Offset : Adjusts tracking offset of the RF amp
(IC001)side.
[5] TRK. Gain
: Adjusts track gain.
[6] EQ Boost
: Adjusts amount of boost of equalizer.
[10/0]
: All servo off.
2-6. Memory Check
Display images are shown as follows, and all two screens are able
to switch by the button (UP) or
O
EEPROM Data 1/2
Focus Gain
Trk. Gain
Focus Offset
Trk. Offset
EQ. Boost
PI Level
Fcs. Balance
Jitter
Mirror Time
FE Level
Traverse Lv1.
Next:DW Default:CLR
On this screen, current servo adjusted data stored in the EEPROM
are displayed. The adjusted data are initialized by pressing the
[CLEAR] button, but be careful that they are not recoverable after
initialization.
Before clearing the adjusted data, make a note of the set data. This
screen will also appear if [0]-All is selected in the Drive Auto
Adjustment. In this case, default setting cannot be made.
2-7. Disc Check Memory
Disc Check Memory
1. SL Disc check
2. CD Disc check
3. DL Disc check
On this screen, measure the mirror time of chucked disc, and write
to the EEPROM.
button (DW).
o
CD SL L0 L1
xx xx xx xx
xx xx xx xx
xx xx xx xx
xx xx xx xx
xx xx xx xx
xx xx -- --
-- xx -- --
xx xx xx xx
xx xx xx --
-- xx -- --
-- xx -- --
Exit:RET
Exit: RETURN