Sony HCD-EA20 Service Manual page 22

HCD-EA20
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2. DRIVE MANUAL OPERATION
Note: This mode is used for design, and not used in service fundamen-
tally.
On the Test Mode Menu screen, press the
commander, and the Operation Menu will be displayed. For the
manual operation, each servo on/off control and adjustment can be
executed manually.
## Drive Manual Operation ##
Operation Menu
1. Disc Type
2. Servo Control
3. Track/Layer Jump
4. Non EEPROM Write Adjust
5. EEPROM Write Adjust
6. Memory Check
7. Disc Check Memory
8. Error Rate Display
9. SACD Water Mark
In using the manual operation menu, take care of the following
points. These commands do not provide protection, thus requiring
correct operation. The sector address or time code field is displayed
when a disc is loaded.
Note:
1. Set correctly the disc type to be used on the Disc Type screen.
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2. In case of an alarm, immediately press the
L 13942296513
servo operation, and press the POWER button to turn the power
off.
Basic operation:
(controllable from front panel or remote commander)
POWER / : Power OFF (release the Test Mode)
@/1
: Servo stop
x
A : Stop and eject/Loading
[RETURN]
: Return to Operation Menu or Test
Mode Menu
[ PREV] [NEXT ]
. , : Transition between sub modes of menu
>
[1] to [9], [10/0]
: Selection of menu items
Cursor o / O : Increase/Decrease in manually
adjusted value
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[2]
key on the remote
Exit: RETURN
button to stop the
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2-1. Disc Type
Disc Type
Disc Type Select
1. Disc Type Auto Check
2. Set Disc Type DVD
3. Set Disc Type CD
4. Set Disc Type Hybrid
2-1-1. Disc Type Auto Check
[1]
1) Press the key on the remote commander to display the Disc
Type Auto Check screen.
2) Insert a disc and press the
commander.
3) It judges the type of inserted disc automatically and displays
the disc type and so on as below.
Disc Type Auto Check
Disc Type
Layer
Mirr Time
Mirr Count
Q Q
3 6 7 1 3 1 5
FZC Count
PI Reference
PI Peak
ENTER.Execute
Disc Type : CD, DVD or Hybrid (SACD)
Layer : SINGLE, DUAL or HYBRID
Mirr Time : Mirror time of between disc surface and record
surface when disc type judgment. (hexadecimal
number)
Mirr Count : The number of times which mirror counts between
disc surface and record surface when disc type
judging. (hexadecimal number)
FZC Count : The number of times which focus zero cross points
of each layer when lens down. (hexadecimal number)
PI Reference : The average of PI reference voltage. (hexadecimal
number)
PI Peak : PI peak level voltage. It performs only when disc
type judgment is successful. (hexadecimal number)
2-1-2. Disc Type DVD
It sets up so that it may judge as a disc type of specification of the
disc with which the set was inserted.
[1]
: DVD single layer disc (12 cm)
[2]
: DVD dual layer disc (0 layer, 12 cm)
[3]
: DVD dual layer disc (1 layer, 12 cm)
[4]
: DVD-RW disc (12 cm) co
[5]
: DVD single layer disc (8 cm)
[6]
: DVD dual layer disc (0 layer, 8 cm)
.
[7]
: DVD dual layer disc (1 layer, 8 cm)
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Exit: RETURN
[ENTER]
key on the remote
xx
xx
xx
xx
0 5 8 2 9 9 4 2 8
xx
xx
xx
Exit: RETURN
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