Test Mode - Sony SCD-XA9000ES Service Manual

In this set, various checks are automatically performed by executing
the commands in the test mode.
Note: This set makes adjustment every optical pick-up and stores its result
in the EEPROM (IC903) on the MAIN board. Accordingly, if a
combination of optical pick-up and EEPROM is changed, be sure
to perform 4-3. SET CHECK. Also, perform 4-1. IC INTERFACE
CHECK, 4-2. DISPLAY CHECK, and 4-6. WAVEFORMS CHECK.
Disc for Test Mode
Various checks of this set require the following discs.
Model Type *1 Category
MODEL
SATD-S5
12 cm disc
(J-2501-215-A) SL
Reference disc
SATD-S4
(J-2501-184-A)
Not specified DL 12 cm disc
PATD-012
(4-225-203-01) 12 cm disc
CD
YEDS-18 Reference disc
(3-702-101-01)
Not specified HYBRID 12 cm disc
*1 SL: Single Layer
DL: Dual Layer
Test Mode Command List
The contents of test mode are as follows.
Note: Wrong operation in the test mode causes a trouble, thus requiring extreme care.
LINE command (0X): Use mainly for a manufacturing line.
No. Name Description
00 RFAmp Read Each register set value of the IC001 (RF AMP) is displayed via RS-232C
05 DSP MON1 XUGF, XPCK, C2PO outputted from IC509 (CD DSP)
06 DSP MON2 MNT0, MNT1, MNT2, MNT3 outputted from IC509 (CD DSP)
07 DSP MON3 RFCK, XPCK, XROF, GTOP outputted from IC509 (CD DSP)
STANDARD command (1X): Use when the servo is applied by manual operation.
No. Name Description
12 LD ON/OFF The laser diode is turned on or off
13 SPIN ON/OFF The spindle motor is rotated with the regulated voltage
14 FSRV ON/OFF The focus servo is turned on or off
15 TSRV ON/OFF The tracking servo is turned on or off
The spindle SLV servo is turned on or off
16 CLV ON/OFF
Focus and tracking servos must be already turned on
The sled servo is turned on or off
17 SSRV ON/OFF
Focus, tracking and spindle servos must be already turned on
18 ALL SRV ON All servos are turned on
19 ALL SRV OFF All servos are turned off
FOCUS command (2X): Focus related. (All servos must be already turned on (except command 21))
No. Name Description
The continuous vertical motion of the optical pick-up lens is turned on or
21 FSRCH ON/OFF
off
22 F-BIAS UP Increase focus bias
23 F-BIAS DOWN Decrease focus bias
The focus bias is adjusted automatically
24 ADJ FCSBIAS
Both + and - directions are searched to search for best jitter point
25 FGAIN UP/DW The focus servo gain is switched between normal and down
27 FOCUS AGC The focus servo gain is adjusted automatically
OFFSET (PI, FE, TE) command (3X): Adjusts the offset of PI, FE and TE signals.
No. Name Description
Adjusts the offset of PI, FE and TE signals
31 PI/FE OFSET
This adjustment must be executed after 61 DISC DETECT
SECTION 4

TEST MODE

Application
Adjusted value check,
Operation check,
Optical waveform check
Operation check
Adjusted value check,
Operation check,
Optical waveform check
Operation check
Setting Method of Test Mode
[POWER]
Turn the button on while pressing the
[MENU]
dial and the button. Release the
[ AMS ]
l L dial in this order when "DIAG MODE" is displayed
on the fluorescent indicator tube.
Releasing Method of Test Mode
To release the test mode, turn the
Selection/Entry of Test Mode
To select and enter the "DIAG MODE", operate as follows.
[ AMS
1. Rotate the l L
[ AMS ]
the l L dial to enter.
2. The test is switched on or off alternately each time the
[ AMS ]
l L dial is pressed.
3. To return to the previous step, rotate the
to select the desired item, and press the
to enter.
Remarks
Not used for the servicing
Not used for the servicing
Not used for the servicing
Electrical measurement,
CD CLV jitter measurement
Remarks
On or off are switched alternately
On or off are switched alternately
On or off are switched alternately
On or off are switched alternately
On or off are switched alternately
On or off are switched alternately
Stop command in the test mode
Remarks
Avoid a long-time use
On or off are switched alternately
Focus bias value
Focus bias value
Normal or down are switched alternately
Remarks
TE offset adjustment is executed for the CD
only
SCD-XA9000ES
[ AMS
l
[MENU]
button and the
[POWER]
switch off.
]
dial to select the menu, and press
[ AMS ]
l L
[ AMS ]
l L
]
L
dial
dial
19