Sony HCD-J300 Service Manual page 23

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5. SELECTING THE TEST MODE
There are 26 types of test modes as shown below. The groups can be switched by pressing the
group to be used, press the
shown below.
Refer to "Group" in the table for details can be selected.
All items used for servicing can be treated using group [Service]. So be carefully not to enter other groups by mistake.
Note: Do not use the test mode in the [Develop] group.
If used, the unit may not operate normally.
If the [Develop] group is set accidentally, press the
Display
AUTO CHECK
Err Display
TEMP ADJUST
LDPWR ADJUST
Iop Write
Iop NV Save
EF MO ADJUST
EF CD ADJUST
FBIAS ADJUST
AG Set (MO)
AG Set (CD)
TEMP CHECK
LDPWR CHECK
EF MO CHECK
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EF CD CHECK
FBIAS CHECK
ScurveCHECK
VERIFYMODE
DETRK CHECK
0920 CHECK
Iop Read
Iop Compare
ADJ CLEAR
INFORMATION
CPLAY 1MODE
CREC 1MODE
• For details of each adjustment mode, refer to "Section 6 Electrical Adjustments".
For details of "Err Display", refer to "Self-Diagnosis Function" on page 3.
• If a different mode has been selected by mistake, press the
• Modes with (×) in the Mark column are not used for servicing and therefore are not described in detail. If these modes are set acciden-
tally, press the MENU/NO "R"
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button. After setting a certain group, pressing the
ENTER/YES "R"
No.
C01 Automatic self-diagnosis
C02 Error history display, clear
C03 Temperature compensation offset adjustment
C04 Laser power adjustment
C05 Iop data writing
C06 Writes current Iop value in read nonvolatile memory using microprocessor
C07 Traverse (MO) adjustment
C08 Traverse (CD) adjustment
C09 Focus bias adjustment
C10 Auto gain output level adjustment (MO)
C11 Auto gain output level adjustment (CD)
C12 Temperature compensation offset check
C13 Laser power check
C14 Traverse (MO) check
C15 Traverse (CD) check
C16 Focus bias check
C17 S-curve check
C18 Nonvolatile memory check
C19 Detrack check
C25 Most circumference check
C26 Iop data display
C27 Comparison with initial Iop value written in nonvolatile memory
C28 Initialization of nonvolatile memory for adjustment values
C31 Display of microprocessor version, etc.
C34 Continuous playback mode
C35 Continuous recording mode
button to release the mode immediately.
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button immediately to exit the [Develop] group.
MENU/NO "R"
Details
Q Q
3 6 7 1 3
button to release that mode.
MENU/NO "R"
u163
.
2 9 9 4 2 8
. or > button. After selecting the
"R" "R"
. or > button switches modes
"R" "R"
Mark
Check
1 5 0 5 8 2 9 9 4
m
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HCD-J300
9 9
Group
Service
2 8 9 9
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