HCD-DP900D - Sony Audio Service Manual (repair manual)

Model
HCD-DP900D
Pages
11
Size
127.16 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / SUPPLEMENT-1
File
hcd-dp900d.pdf
Date

View Sony HCD-DP900D Service Manual online

HCD-DP900D
SUPPLEMENT-1
File this supplement with the service manual.
Subject: 1. DVD test Mode
Ver 1.5
E Model
9-873-312-81
SERVICE MANUAL
2
HCD-DP900D
1.
TEST  MODE
1-1.
GENERAL  DESCRIPTION
The Test Mode allows you to make diagnosis and adjustment eas-
ily using the remote commander and monitor TV. The instructions,
diagnostic results, etc. are given on the on-screen display (OSD).
1-2.
STARTING  TEST  MODE
Press the  ?/1  button to turn the set ON, and set the function to
DVD. Press the Z 1  button to insert the DVD disc, and wait for
TOC reading is finish. Next, while pushing the x button and the
[ENTER] and [DISC 1] button on the main unit at the same time,
turn the regulator to the right to start Test Mode and display the
menu shown below on the TV screen. At the bottom of the menu
screen, the model name and revision number are displayed.
To  execute each function, select the desired menu and press its
number on the remote commander. To exit from Test Mode, press
the  ?/1  button.
Note: In the Test Mode, use the remote commander (RM-SD170)
(Part No.: 1-418-911-11).
Test Mode Menu
0. Syscon Diagnosis
1. Drive Auto Adjustment
2. Drive Manual Operation
3. Mecha Aging
4. Emergency History
5. Version Information
6. Video Level Adjustment
Exit: Power Key
_
Model
: HCX-984_xxxx
Revision: 1.xxx
1-3.
SYSCON  DIAGNOSIS
The same contents as board detail check by serial interface can be
checked from the remote commander.
On the Test Mode Menu screen, press 
[10/0]
 key on the remote
commander, and the following Check Menu will be displayed.
### Syscon Diagnosis ###
Check Menu
0. Quit
1. All
2. Version
3. Peripheral
4. Servo
5. Supply
6. AV Decoder
7. Video
8. Audio
_
0.
Quit
Quit the Syscon Diagnosis and return to the Test Mode Menu.
1.
All
All items continuous check
This menu checks all diagnostic items continuously. Normally, all
items are checked successively one after another automatically
unless an error is found, but at a certain item that requires judg-
ment through a visual check to the result, the following screen is
displayed for the key entry.
### Syscon Diagnosis ###
Diag All Check
No. 2 Version
 2-3. ROM Check Sum
Check Sum = 2005
Press NEXT Key to Continue
Press PREV Key to Repeat
_
For the ROM Check, the check sum calculated by the Syscon is
output, and therefore you must compare it with the specified value
for confirmation.
Following the message, press 
[NEXT]
 key to go to the next item,
or 
[PREV]
 key to repeat the same check again. To quit the diagno-
sis and return to the Check Menu screen, press the x or
[ENTER]
  key. If an error occurred, the diagnosis is suspended
and the error code is displayed as shown below.
### Syscon Diagnosis ###
 3-3. EEPROM Check
Error 03: EEPROM Write/Reed N
Address
: 00000001
Write Data : 2492
Read Data : 2490
Press NEXT Key to Continue
Press PREV Key to Repeat
_
Press the x key to quit the diagnosis, or 
[PREV]
 key to repeat
the same item where an error occurred, or 
[NEXT]
 key to continue
the check from the item next to faulty item.
Selecting 2 and subsequent items calls the submenu screen of each
item.
For example, if “5. Supply” is selected, the following submenu
will be displayed.
### Syscon Diagnosis ###
Check Menu
No. 5 Supply
0. Quit
1. All
2. ARP Register Check
3. ARP to RAM Data Bus
4. ARP to RAM Address Bus
5. ARP RAM Check
_
0.
Quit
Quit the submenu and return to the Check Menu.
1.
All
All submenu items continuous check
This menu checks 2 and subsequent items successively. At the item
where visual check is required for judgment or an error occurred,
the checking is suspended and the message is output for key entry.
Normally, all items are checked successively one after another au-
tomatically unless an error is found.
3
HCD-DP900D
Selecting 2 and subsequent items executes respective menus and
outputs the results.
For the contents of each submenu, see “Check Items List”.
General Description of Checking Method
2.
Version
(2-2) Revision
ROM revision number is displayed.
Error: Not detected.
The revision number defined in the source file of ROM
(IC206) is displayed with four digits.
(2-3) ROM Check Sum
Check sum is calculated.
Error: Not detected.
The 8-bit data are added at addresses 0x000F0000 ~
0x002EFFFF of ROM (IC206) and the result is displayed
with 4-digit hexadecimal number. Error is not detected.
Compare the result with the specified value.
(2-4) Model Type
Model code is displayed.
Error: Not detected.
The model code read from EEPROM (IC201) is displayed
with 2-digit hexadecimal number.
Model
Model No.
US and Canadian models
20
E, Mexican and Argentine models
22
AEP, UK and Saudi Arabia models
23
Australian model
24
Malaysia, Singapore, Hong Kong,
Thai and Taiwan models
25
Chinese model
26
(2-5) Region
Region code is displayed.
Error: Not detected.
The region code determined from the model code is dis-
played.
3.
Peripheral
(3-2) Gate Array Check
Data write 
→ read, and accord check
Error 02: Gate array write/read discord
Data 0x00~0xFF are written to the address 0xF of gate array
(IC601), then read and checked if they accord.
(3-3) EEPROM Check
Data write 
→ read, and accord check
Error 03: EEPROM write/read discord
Data 0x9249, 0x2942, 0x4294 are written to addresses
0x00~0xFF of EEPROM (IC201), then read and checked.
Before writing, the data are saved, then after checking, they
are written to restore the contents of EEPROM.
4.
Servo
(4-2) Servo DSP Check
Data write 
→ read, and accord check
Error 12: Read data discord
Data 0x9249, 0x2942, 0x4294 are written to the address
0x602 of RAM in the Servo DSP (IC701), then read and
checked.
(4-3) DSP Driver Test
Test signal data 
→ DSP Driver
Error: Not detected.
Caution: Do not conduct this test with a mechanical deck
connected.
The maximum voltage is applied to the Servo Driver IC
(IC801, IC802). If mechanical deck is connected, the mo-
tor and optics could be damaged. Disconnect mechanical
deck following the output message, then enter specified 4-
or 5-digit number from the remote commander, and press
the 
[ENTER]
. The test is conducted only when the input
data accord. Check the output level, then press the 
[NEXT]
to finish the test.
This test is skipped if “All” is selected.
Supplement: How to disconnect mechanical deck
Disconnect flat cables connected to the CN002 and CN003
of MB board. Also, disconnect harness from the CN013 of
MB board.
5.
Supply
Caution: Do not conduct this check with a mechanical deck con-
nected.
An access is made to the stream supply and servo con-
trol IC (IC303) and external RAM (IC304) using check
data. If mechanical deck is connected, the motor and
optics could be damaged. This check is also executed
by the “All” menu item.
Supplement: How to disconnect mechanical deck
Disconnect flat cables connected to the CN002 and
CN003 of MB board. Also, disconnect harness from
the CN013 of MB board.
(5-2) ARP Register Check
Data write 
→ read, and accord check
Error 08: ARP register write, and read data discord
Data 0x00 to 0xFF are written to the TMAX register (ad-
dress 0xC6) in ARP (IC303), then they are read and checked.
(5-3) ARP to RAM Data Bus
Data write 
→ read, and accord check
Error 09: ARP 
←→ RAM data bus error
Data 0x0001 to 0x8000 where one bit each is set to 1 are
written to the address 0 of RAM (IC304) connected to the
ARP (IC303) through the bus, then they are read and
checked. In case of discord, written bit pattern and read
data are displayed. If data where multiple bits are 1 are
read, the bits concerned may touch each other. Further, if
data where certain bit is always 1 or 0 regardless of written
data, the line could be disconnected or shorted.
4
HCD-DP900D
(5-4) ARP to RAM Address Bus
Data write 
→ other address read discord check
Error 10: ARP 
→ RAM address bus error
Caution: Address and data display in case of an error is
different from the display of other diagnosis (de-
scribed later).
Before starting the test, all addresses of RAM (IC304) are
cleared to 0x0000.
First, 0xA55A is written to the address 0x00000, and the
address data are read and checked from addresses 0x00001
to 0x80000 while shifting 1 bit each. Next, the data at that
address is cleared, and it is written to the address 0x00001,
and read and checked in the same manner. This check is
repeated up to the address 0x80000 while shifting the ad-
dress data by 1 bit each.
If data other than 0 is read at the addresses except written
address, an error is given because all addresses were al-
ready cleared to 0. In this check, the error display pattern is
different from that of other diagnosis; read data, written
address, and read address are displayed in this order. How-
ever, the message uses same template, and accordingly ex-
change Address and Data when reading. The following dis-
play, for example,
### Syscon Diagnosis ###
 5-4. ARP to RAM Address Bus
Error 10: ARP - RAM Address B
Address
: 0000A55A
Write Data : 00000000
Read Data : 00080000
Press NEXT Key to Continue
Press PREV Key to Repeat
_
shows the data 0xA55A was read from address 0x00080000
though it was written to the address 0x00000000. This im-
plies that these addresses are in the form of shadow. Also,
if the read data is not 0xA55A, another error will be present.
(5-5) ARP RAM Check
Data write 
→ read, and accord check
Error 11: ARP RAM read data discord
The program code data stored in ROM are copied to all
areas of RAM (IC304) connected to the ARP (IC303)
through the bus, then they are read and checked if they ac-
cord. If the detail check was selected initially, the data are
written to all areas and read, then the same test is conducted
once again with the data where all bits are inverted between
1 and 0. If discord is detected, faulty address, written data,
and read data are displayed following the error code 11,
and the test is suspended.
6.
AV Decoder
(6-2) 1930 RAM
Data write 
→ read, and accord check
Error 13: AVD RAM read data discord
The program code data stored in ROM (IC206) are copied
to all areas of RAM (IC402, IC403) connected to the AVD
(IC401) through the bus, then they are read and checked if
they accord. Further, the same test is conducted once again
with the data where all bits are inverted between 1 and 0. If
discord is detected, faulty address, written data, and read
data are displayed following the error code 13, and the test
is suspended.
(6-3) 1930 SP
ROM 
→ AVD RAM → Video OUT
Error: Not detected.
The data including sub picture streams in ROM (IC206)
are transferred to the RAM (IC402, IC403) in AVD (IC401),
and output as video signals from the AVD (IC401).
They are output from all video terminals (Composite, Y/C).
7.
Video
(7-2) Color Bar
AVD color bar command write 
→ Video OUT
Error: Not detected.
The command is transferred to the AVD, and the color bar
signals are output from video terminals.
They are output from all video terminals (Composite, Y/C).
8.
Audio
(8-2) ARP 
→ 1930
Error 14: ARP 
→ 1930 video NG
         15 : ARP 
→ 1930 audio NG
5
HCD-DP900D
Check Items List
2) Version
(2-2) Revision
(2-3) ROM Check Sum
(2-4) Model Type
(2-5) Region
3) Peripheral
(3-2) Gate Array Check
(3-3) EEPROM Check
4) Servo
(4-2) Servo DSP Check
(4-3) DSP Driver Test
5) Supply
(5-2) ARP Register Check
(5-3) ARP to RAM Data Bus
(5-4) ARP to RAM Address Bus
(5-5) ARP RAM Check
6) AV Decoder
(6-2) 1930 RAM
(6-3) 1930 SP
7)
Video
(7-2) Color Bar
8) Audio
(8-2) ARP 
→ 1930
(8-3) Test Tone
Error Codes List
00: Error not detected
01: RAM write/read data discord
02: Gate array NG
03: EEPROM NG
08: ARP register read data discord
09: ARP 
←→ RAM data bus error
10: ARP 
←→ RAM address bus error
11: ARP RAM read data discord
12: Servo DSP NG
13: 1930 SDRAM NG
14: ARP 
→ 1930 video NG
15: ARP 
→ 1930 audio NG
16: 1910 UCODE download NG
17: System call error (function not supported)
18: System call error (parameter error)
19: System call error (illegal ID number)
20: System call error (time out)
90: Error occurred
91: User verification NG
92: Diagnosis cancelled
6
HCD-DP900D
1-4.
DRIVE  AUTO  ADJUSTMENT
On the Test Mode Menu screen, press 
[1]
 key on the remote com-
mander, and the Adjustment Menu will be displayed.
## Drive Auto Adjustment ##
Adjustment Menu
0. ALL
1. DVD-SL
2. CD
3. DVD-DL
4. SACD
Exit: RETURN
Normally, 
[10/0]
  is selected to adjust DVD (single layer), CD,
DVD (dual layer), and SACD in this order. But, individual items
can be adjusted for the case where adjustment is suspended due to
an error. In this mode, the adjustment can be made easily through
the operation following the message displayed on the screen.
The disc used for adjustment must be the one specified for adjust-
ment. However, for SACD disc, use the player with initial data if
the disc is not available.
0.
ALL
Select 
[10/0]
 and press 
[ENTER]
 key, and the servo set data in
EEPROM will be initialized. Then, 1. DVD-SL disc, 2. CD disc,
3. DVD-DL disc, and 4. SACD disc are adjusted in this order.
Each time one disc was adjusted, it is ejected. Replace it with the
specified disc following the message. Though the message to con-
firm whether discs other than SACD disc are adjusted is not dis-
played, you can finish the adjustment if pressing the x button.
During adjustment of each disc, the measurement for disc type
judgment is made. As automatic adjustment does not judge the
disc type unlike conventional models, take care not to insert wrong
type discs. Also, do not give a shock during adjustment.
1.
DVD-SL (single layer)
Select 
[1]
, insert DVD single layer disc, and press 
[ENTER]
 key,
and the adjustment will be made through the following steps, then
adjusted values will be written to the EEPROM.
DVD Single Layer Disc Adjustment Steps
1. SLED TILT Reset
2. Disc Check Memory SL
3. Wait 300 msec
4. Set Disc Type SL
5. LD ON
6. Spdl Start
7. Wait 1 sec
8. Focus Servo ON 0
9. Auto Track Offset Adjust
10. CLVA ON
11. Wait 500 msec
12. Tracking ON
13. Wait 1 sec
14. Sled ON
15. Check CLV Lock
16. Auto LFO Adjust
17. Auto Focus Offset Adjust
18. Auto Tilt Position Adjust
19. Auto Focus Gain Adjust
20. Auto Focus Offset Adjust
21. EQ Boost Adjust
22. Auto LFO Adjust
23. Auto Track Gain Adjust
Search Check
24. 32Tj Fwd
25. 32Tj Rev
26. 500Tj Fwd
27. 500Tj Rev
28. All Servo Stop
29. Eep Copy Loop Filter Offset
7
HCD-DP900D
2.
CD
Select 
[2]
, insert CD disc, and press 
[ENTER]
 key, and the adjust-
ment will be made through the following steps, then adjusted val-
ues will be written to the EEPROM.
CD Adjustment Steps
1. Sled Tilt Rest
2. Disc Check Memory CD
3. Wait 500 msec
4. Set Disc Type CD
5. LD ON
6. Spdl Start
7. Wait 500 msec
8. Focus Servo ON 0
9. Auto Track Offset Adjust
10. CLVA ON
11. Wait 500 msec
12. Tracking ON
13. (TC Display Start)
14. Wait 1 sec
15. Jitter Display Start
16. Sled ON
17. Check CLV ON
18. Auto LFO Adjust
19. Auto Focus Offset Adjust
20. Auto Focus Gain Adjust
21. Auto Focus Offset Adjust
22. Eq Boost Adjust
23. Auto LFO Adjust
24. Auto Track Gain Adjust
Search Check
25. 32Tj Fwd
26. 32Tj Rev
27. 500Tj Fwd
28. 500Tj Rev
29. All Servo Stop
3.
DVD-DL (dual layer)
Select 
[3]
, insert DVD dual layer disc, and press 
[ENTER]
 key,
and the adjustment will be made through the following steps, then
adjusted values will be written to the EEPROM.
DVD Dual Layer Disc Adjustment Steps
1. Sled Tilt Reset
2. Disc Check Memory DL
3. Wait 500 msec
4. Set Disc Type DL
5. LD ON
6. Spdl Start
7. Wait 1 sec, Layer 1 Adjust
8. Focus Servo ON 0
9. Auto Track Offset Adjust
10. Clva ON
11. Wait 500 msec
12. Tracking ON
13. Wait 500 msec
14. Sled ON
15. Check CLV Lock
16. Auto Loop Filter Offset Auto Focus Adjust
17. Auto Focus Gain Adjust
18. Auto Focus Offset Adjust
19. Eq Boost Adjust
20. Auto Loop Filter Offset
21. Auto Track Gain Adjust
Search Check
22. 32Tj Fwd
23. 32Tj Rev
24. 500Tj Fwd
25. 500Tj Rev
Layer 0 Adjust
26. Fj (L1 -> L0)
27. Auto Track Offset Adjust L0
28. Clva ON
29. Wait 500 msec
30. Tracking ON
31. Wait 500 msec
32. Sled ON
33. Check CLV Lock
34. Auto Focus Filter Offset
35. Auto Focus Adjust
36. Auto Focus Gain Adjust
37. Auto Focus Offset Adjust
38. Eq Boost Adjust
39. Auto Loop Filter Offset
40. Auto Track Gain Adjust
Search Check
41. 32Tj Fwd
42. 32Tj Rev
43. 500Tj fwd
44. 500Tj Rev
Layer Jump Check
45. Lj (L0 -> L1)
46. Lj (L1 -> L0)
47. All Servo Stop
8
HCD-DP900D
4.
SACD
Select 
[4]
, insert SACD disc, and press 
[ENTER]
  key, and the
adjustment will be made through the following steps, then adjusted
values will be written to the EEPROM. However, if SACD disc is
not available, use the player with initial data, skipping the SACD
adjustment. In this case, you can finish the adjustment if pressing
the x button.
SACD Adjustment Steps
1. Sled Tilt Reset
2. Set Disc Type CD
3. LD ON
4. Spdl Start
5. Wait 500 msec
6. Focus Servo ON 0
7. Auto track Offset Adjust
8. CLVA ON
9. Wait 500 msec
10. Tracking ON
11. Wait 1 sec
12. Sled ON
13. Check CLV ON
14. Auto Focus Offset Adjust
15. Auto Focus Gain Adjust
16. Auto Focus Offset Adjust
17. Eq Boost Adjust
18. Auto LFO Adjust
19. Auto Track Gain Adjust
20. 32Tj Fwd
21. 32Tj Rev
22. 500Tj Fwd
23. 500Tj Rev
24. All Servo Stop
1-5.
DRIVE  MANUAL  OPERATION
On the Test Mode Menu screen, select 
[2]
, 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. Manual Adjustment
5. Auto Adjustment
6. Memory Check
0. Disc Check Memory
Exit: Return
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 dis-
played when a disc is loaded.
1. Set correctly the disc type to be used on the Disc Type
screen.
The disc type must be set after a disc was loaded.
The set disc type is cleared when the tray is opened.
2. After power ON, if the Drive Manual Operation was se-
lected, first perform “Reset SLED TILT” by opening 1.
Disc Type screen.
3. In case of an alarm, immediately press the  x  button to
stop the servo operation, and press the  ?/1   button to
turn the power OFF.
Basic operation (controllable from front panel or remote com-
mander)
 ?/1
Power OFF (release the Test Mode)
 x
Servo stop
 Z 
Stop+Eject/Loading
[RETURN]
Return to Operation Menu or Test Mode
Menu
[NEXT]
[PREV]
Transition between sub modes of menu
[1]
 to 
[9]
[10/0]
Selection of menu items
Cursor UP/DOWN
Increase/Decrease in manually adjusted
value
0.
Disc Check Memory
Disc Check
1. SL Disc Check
2. CD Disc Check
3. DL Disc Check
0. Reset SLED TILT
9
HCD-DP900D
On this screen, the mirror time is measured to judge the disc and it
is written to the EEPROM. First load DVD SL disc and press 
[1]
,
next load CD disc and press 
[2]
, and finally load DVD DL disc
and press 
[3]
.
The adjustment must be executed more than once after default
data were written. External vibration or shock to the player must
not be given. Reference value for DVD is from 10 to 20, and for
CD, from 28 to 4F.
Check that the value of CD is larger than that of DVD.
When those values are beyond a range perform this adjustment
again.
From this screen, you can go to another mode by pressing 
[NEXT]
or 
[PREV]
 key, but you cannot enter this mode from another mode.
You can enter this mode from the Operation Menu screen only.
1.
Disc Type
Disc Type
1. Disc Type Auto Check
2. DVD SL
12 cm
3. DVD DL
12 cm
4. CD
12cm
5. SACD
12 cm
6. dvd SL
8 cm
7. DVD DL
8 cm
8. CD
8 cm
9. SACD
8 cm
0. Reset SLED TILT
EMG. 00
On this screen, select the disc type. To select the disc type, press
the number of the loaded disc. The selected disc type is displayed
at the bottom. Selecting 
[1]
 automatically selects and displays the
disc type. In case of wrong display, retry “Disc Check Memory”.
Also, opening the tray causes the set disc type to be cleared. In
this case, set the disc type again after loading.
In performing manual operation, the disc type must be set.
Once the disc type has been selected, the sector address or time
code display field will appear as shown below. These values are
displayed when PLL is locked.
Disc Type
1. Disc Type Auto Check
2. DVD SL
12 cm
3. DVD DL
12 cm
4. CD
12cm
5. SACD
12 cm
6. dvd SL
8 cm
7. DVD DL
8 cm
8. CD
8 cm
9. SACD
8 cm
0. Reset SLED TILT
SA.      SI.    EMG. 00
DVD SL 12 cm
Display when DVD SL 12cm disc was selected
Disc Type
1. Disc Type Auto Check
2. DVD SL
12 cm
3. DVD DL
12 cm
4. CD
12cm
5. SACD
12 cm
6. dvd SL
8 cm
7. DVD DL
8 cm
8. CD
8 cm
9. SACD
8 cm
0. Reset SLED TILT
TC.   :   :    EMG. 00
CD   12 cm
Display when CD 12cm disc was selected
[10/0]
 Reset SLED TILT Reset the Sled and Tilt to initial posi-
tion.
[1]
Disk Type Check
Judge automatically the loaded disc. As
the judged result is displayed at the bot-
tom of screen, make sure that it is cor-
rect.
If Disc Check Memory Menu has not
been executed after EEPROM default
setting, the disc type cannot be judged.
In this case, return to the initial menu
and make a check for three types of
discs (SL, DL, CD).
[2]
 to 
[9]
Select the loaded disc. The adjusted
value is written to the address of se-
lected disc. No further entry is neces-
sary if 
[1]
 was selected.
2. Servo Control
Servo Control
1. LD
Off R.Sled FWD
2. SP
Off L.Sled REV
3. Focus
Off
4. TRK.
Off
5. Sled
Off
6. CLVA
Off
7. FCS. Srch Off
0. Reset SLED TILT
SA.      SI.    EMG. 00
DVD SL 12 cm
On this screen, the servo on/off control necessary for replay is
executed. Normally, turn on each servo from 1 sequentially and
when CLVA is turned on, the usual trace mode becomes active. In
the trace mode, DVD sector address or CD time code is displayed.
This is not displayed where the spindle is not locked.
The spindle could run overriding the control if the spindle system
is faulty or RF is not present. In such a case, do not operate CLVA.
10
HCD-DP900D
[10/0]
 Reset
Reset the Sled and Tilt to initial posi-
tion.
[1]
LD
Turn ON/OFF the laser.
[2]
SP
Turn ON/OFF the spindle.
[3]
Focus
Search the focus and turn on the focus.
[4]
TRK
Turn ON/OFF the tracking servo.
[5]
Sled
Turn ON/OFF the sled servo.
[6]
CLVA
Turn ON/OFF normal servo of spindle
servo.
[7]
FCS. Srch
Apply same voltage as that of focus
search to the focus drive to check the
focus drive system.
→ Sled FWD
Move the sled outward. Perform this
operation with the tracking servo turned
off.
← Sled REV
Move the sled inward. Perform this op-
eration with the tracking servo turned
off.
↑ Tilt UP
Move the tilt upward.
↓ Tilt DOWN
Move the tilt downward.
The following menus are normally not used.
3.
Track/Layer Jump
4.
Manual Adjustment
5.
Auto Adjustment
The persons who do not know well about these menus should not
use them.
6. Memory Check
EEPROM DATA
CD
– DVD –
ID No. 00
SACD
SL
L0
L1
Focus Gain
xx xx
xx
xx
xx
TRK. Gain
xx xx
xx
xx
xx
Focus Offset xx xx
xx
xx
xx
TRK. Offset
xx xx
xx
xx
xx
L. F. Offset xx xx
xx
xx
xx
EQ Boost
xx xx
xx
xx
xx
Jitter
xx xx
xx
xx
xx
Mirror Time
xx xx
xx
xx
xx
_
CLEAR: Default Set
This screen displays current servo adjusted data stored in the
EEPROM. Though adjusted data can be initialized with the
[CLEAR]
 key, they cannot be restored after initialization.
So, before clearing, make a note of the adjusted data.
For reference, the drive has been designed so that the gain center
value is 20 and offset value is 80. Other values will be in a range
of 10 to 80. If extreme value such as 00 or FF is set, adjustment
will be faulty. In such a case, check for disc scratch or cable dis-
connection, then perform adjustment again.
1-6. MECHA  AGING
### Aging Test MENU ###
Operation Menu
1. Changer Open/Close Test
2. Changer Exchange Test
                  Exit: RETURN
On the Test Mode Menu Screen, selecting 
[3]
 executes the aging
of the mechanism. Changer Open/Close Test or Changer Exchange
Test are selected by pressing the 
[1]
 or 
[2]
. During aging, the repeat
cycle is displayed. Aging can be aborted at any time by pressing
the  x  key. After the operation is stopped, press the x  key or
[RETURN]
 key aging to return to the Test Mode Menu.
[1]
Repeat open and close the disc tray from disc 1 to disc 5.
[2]
After press the 
[2]
  key, select the disc number by pressing
some key of 
[1]
 to 
[5]
 and open the disc tray of selected number.
Press the  N  key to start playback the disc.
While playback the disc, repeat open and close the disc tray of
other disc.
1-7. EMERGENCY  HISTORY
### EMG. History ###
Laser Hours
CD
xxxxxxxh
DVD
xxxxxxxh
1. 00 00 00 00 00 00 00 00
   00 00 00 00 00 00 00 00
2. 00 00 00 00 00 00 00 00
   00 00 00 00 00 00 00 00
Select: 1 – 9
Scroll: UP/DOWN
(1: Last EMG.)
Exit: Return
On the Test Mode Menu screen, selecting 
[4]
 displays the infor-
mation such as servo emergency history. The history information
from last 1 up to 10 can be scrolled with 
↑ key or ↓ key. Also,
specific information can be displayed by directly entering that
number with ten keys.
The upper two lines display the laser ON total hours. Data below
minutes are omitted.
Clearing History Information
Clearing laser hours
Press 
[DVD DISPLAY]
 and 
[CLEAR]
 keys in this order.
Both CD and DVD data are cleared.
Clearing emergency history
Press 
[TITLE]
 and 
[CLEAR]
 keys in this order.
Initializing set up data
Press 
[DVD MENU]
 and 
[CLEAR]
 keys in this order.
The data have been initialized when “Set Up Initialized” mes-
sage is displayed. The EMG. History screen will be restored
soon.
SLED TILT

Download Sony HCD-DP900D Service Manual (Repair Manual)

Here you can view online and download Sony HCD-DP900D Service Manual in PDF. HCD-DP900D service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony HCD-DP900D Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.