Sony HCD-C990 Service Manual - Page 28

Track/Layer Jump, Non EEPROM Write Adjust, EEPROM Write Adjust, Memory Check

Page 28 highlights

HCD-C770/C990 2-3. Track/Layer Jump Track/Layer Jump 1. 1Tj FWD R.Lj L0>L1 2. 1Tj REV L.Lj L1>L0 3.500Tj Fine FWD U.Fj L0>L1 4.500Tj Fine REV D.Fj L1>L0 5.10kTj Dirc FWD 6.10kTj Dirc REV 7.20kTj Dirc FWD 8.20kTj Dirc REV 0. All Servo Off Exit: RETURN On this screen, track jump, etc. can be performed. Only for the DVD dual layer disc, the focus jump and layer jump are displayed in the right field [1] 1Tj FWD : 1 track jump forward. [2] 1Tj REV : 1 track jump reverse. [3] 500Tj FWD: 500 track 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 Exit: RETURN 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 O key or o key. This value is stored 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. 28 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 Exit: RETURN 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. [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 O key (UP) or o key (DW). EEPROM Data 1/2 CD Focus Gain xx Trk. Gain xx Focus Offset xx Trk. Offset xx EQ. Boost xx PI Level xx Fcs. Balance -- Jitter xx xx Mirror Time xx FE Level -- Traverse Lv1. -- Next:DW Default:CLR 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 -- -- Exit:RET EEPROM Data 2/2 Focus Gain Trk. Gain Focus Offset Trk. Offset EQ. Boost CDRW DVDRW xx xx xx xx xx xx xx xx xx xx Next:UP Default:CLR Exit:RET On this screen, current servo adjusted data stored in the EEPROM are displayed. The adjusted data are initialized by pressing the [CLEAR] key, 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.

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28
HCD-C770/C990
2-3.
Track/Layer Jump
Track/Layer Jump
1.
1Tj
FWD R.Lj L0>L1
2.
1Tj
REV L.Lj L1>L0
3.500Tj Fine
FWD U.Fj L0>L1
4.500Tj Fine
REV D.Fj L1>L0
5.10kTj Dirc
FWD
6.10kTj Dirc
REV
7.20kTj Dirc
FWD
8.20kTj Dirc
REV
0. All Servo Off
Exit: RETURN
On this screen, track jump, etc. can be performed. Only for the DVD
dual layer disc, the focus jump and layer jump are displayed in the
right field
[1]
1Tj FWD
: 1 track jump forward.
[2]
1Tj REV
: 1 track jump reverse.
[3]
500Tj FWD: 500 track 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
Exit: RETURN
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
O
key or
o
key. This value is
stored 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
Exit: RETURN
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.
[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
O
key (UP) or
o
key (DW).
EEPROM Data 1/2
CD SL L0 L1
Focus Gain
xx xx xx xx
Trk.
Gain
xx xx xx xx
Focus Offset
xx xx xx xx
Trk.
Offset
xx xx xx xx
EQ.
Boost
xx xx xx xx
PI
Level
xx xx -- --
Fcs. Balance
-- xx -- --
Jitter xx
xx xx xx
Mirror Time
xx xx xx --
FE Level
-- xx -- --
Traverse Lv1.
-- xx -- --
Next:DW Default:CLR
Exit:RET
EEPROM Data 2/2
CDRW DVDRW
Focus Gain
xx
xx
Trk.
Gain
xx
xx
Focus Offset
xx
xx
Trk.
Offset
xx
xx
EQ.
Boost
xx
xx
Next:UP Default:CLR
Exit:RET
On this screen, current servo adjusted data stored in the EEPROM
are displayed. The adjusted data are initialized by pressing the
[CLEAR]
key, 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.