Sony HCD-RV900D Service Manual

HCD-RV900D

SERVICE MANUAL

Ver 1.2 2003.10

SUPPLEMENT-1

Subject: DVD TEST MODE

E Model

Australian Model

(SPM-03008)

9-874-119-81

HCD-R V900D

DVD TEST MODE

[GENERAL DESCRIPTION]

The Test Mode allows you to make diagnosis and adjustment easily
using the remote commander and monitor TV. The instructions,
diagnostic results, etc. are given on the on-screen display (OSD).
After parts related to the servo circuit (RF amplifier, DSP, motor
driver, EEPROM so on) are replaced, re-adjusting the servo circuit
is necessary. Select “ALL” at “1. DRIVE AUTO ADJUSTMENT”
(Refer to page 3 in TEST MODE) and adjust DVD-SL (single layer),
CD and DVD-DL (duallayer).

[TEST DISC LIST]

Use the following test disc on test mode.
TDV-520CSO (DVD-SL): PART No. J-2501-236-A
LUV-P01 (CD): PART No. 4-999-032-01
TDV-540C (DVD-DL): PART No. J-2501-235-A

Note: Do not use exiting test disc for DVD.

[STARTING TEST MODE]

1. Press the [POWER] button to turn the power on, and set the
function to DVD.

2. While pressing the x and [DISPLAY] button, turn the

[VOLUME] knob clockwise to enter the test mode.

3. It displays “TEST MODE” on the fluorescent indicator tube,
and displays the Test Mode Menu on the monitor screen as
follows. (At the bottom of the menu screen, the model name
and revision number are displayed)

Test Mode Menu

0. Syscon Diagnosis

1. Drive Auto Adjustment

2. Drive Manual Operation

3. Mecha Aging

4. Emergency History

5. Mecha Error History

6. Version Information

7. Video Level Adjustment
Exit: POWER Key

Model :MHC-xxxx
Revision :x.xx

4. To execute each function, select the desired menu and press its
number on the remote commander (RM-SV215D).

5. To release from test mode, press the [POWER] button and turn
the power off.

[OPERATING TEST MODE]

0-0. Quit

Quit the Syscon Diagnosis and return to the Test Mode Menu.

0-1. 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 judgment
through a visual check to the result, the following screen is displayed
for the key entry.

• Example display

### Syscon Diagnosis ###

Check Menu

No.2 Version

2-3. ROM Check Sum

Check Sum = 1C4E

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 the
next item, or press the [ PREV] button to repeat the same
operation again.
To quit the diagnosis and return to Check Menu screen, press the

[NEXT ] button to go to the

>

.

[RETURN] key on the remote commander to display Check Menu.

• Error occurred

If an error occurred, the diagnosis is suspended and error is displayed.
Press the [RETURN] key on the remote commander to quit the
diagnosis, or press the [ PREV] button to repeat the same check
where an error occurred, or press the [NEXT ] button to continue
the check from the item next to faulty item.

General Description of Checking Method

Selecting 2 and subsequent items calls the submenu screen of each
item. And selecting 2 and subsequent items executes respective
menus and outputs the results.
For the contents of each submenu, see “Check Items List” as below.

.

>

0. SYSCON DIAGNOSIS

The same contents as board detail check by serial interface can be
checked from the remote commander operation.
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. EEPROM

4. SPIO

5. SD Bus

6. Video

7. Audio

2

Check Items List:

0-2. Version

0-2-1. All
0-2-2. Revision
0-2-3. ROM Check Sum
0-2-4. Model Type
0-2-5. Region

0-3. EEPROM Check

0-3-1. Sampling Check

0-3-2. Detail Check
0-4. GP I/O Check
0-5. SD Bus Check
0-6. Video Check
0-7. Audio Check

0-2. Version

0-2-2. Revision

The revision number of ROM (IC203) that the program for
the DVD system processor (IC206) is stored.
(4 digits hexadecimal number)

HCD-R V900D

0-2-3. ROM Check Sum

The revision number of ROM (IC203) that the program for
the DVD system processor (IC206) is stored.

0-2-4. Model Type

Model name is displayed. (MHC-xxxx)

0-2-5. Region

Model destination code is displayed. (2 digits number)

0-3. EEPROM Check

0-3-1. Sampling Check

EEPROM check at every 64 words.
It compares read data with write data of each address. When
there are discrepancies between two data, it displays error.

0-3-2. Detail Check

EEPROM check at every 1 word.
It compares read data with write data of each address. When
there are discrepancies between two data, it displays error.

0-4. GP I/O Check

Pull up/down setting check of the DVD system processor (IC206)
pin 150, 151 and 154 (for clock setting port).

0-5. SD Bus Check

SD bus data check between DVD decoder (IC701) and D-RAM
(IC706).

0-6. Video Check

Output the color bars for video level adjustment.

0-7. Audio Check

Output the test signal (1kHz sine wave) for 5.1 CH test.

1. DRIVE AUTO ADJUSTMENT

On the Test Mode Menu screen, press the [1] key on the remote
commander, and the Adjustment Menu will be displayed.

## Drive Auto Adjustment ##

Adjustment Menu

0. ALL

1. DVD-SL

2. CD

3. DVD-DL

1-0. ALL

Press the [10/0] key on the remote commander, and the servo set
data in EEPROM will be initialized. Then, 1. DVD-SL disc, 2. CD
disc and 3. DVD-DL disc are adjusted in this order.
Each time one disc was adjusted, it is ejected. Replace it with the
specified disc following the message. You can finish the adjustment
by pressing the [RETURN] button on the remote commander.

Note: During adjustment of each disc, the measurement for disc type judg-

ment 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.

1-1. DVD-SL (single layer)

Press the [1] key on the remote commander and insert a DVD single
layer disc following the message. Then the adjustment will be made
through the steps below, 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. Spindle 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 on

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 loop filter offset adjust

23. Auto track gain adjust
Search Check

24. 32 track jump forward

25. 32 track jump reverse

26. 500 track jump forward

27. 500 track jump reverse

28. All servo stop

29. EEP copy loop filter offset

Exit: RETURN

Normally, [10/0] is selected to adjust DVD (single layer), CD and
DVD (dual layer) 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
adjustment.

Note: After parts related to the servo circuit (RF amplifier, DSP, motor

driver, EEPROM so on) are replaced, re-adjusting the servo circuit is
necessary. Select “ALL” at “1. DRIVEAUTO ADJUSTMENT” and
adjust DVD-SL (single layer), CD and DVD-DL (dual layer).

1-2. CD

Press the
following the message. Then the adjustment will be made through
the steps below, then adjusted values will be written to the EEPROM.

CD Adjustment Steps

[2] key on the remote commander and insert a CD disc

1. Sled tilt rest

2. Disc check memory CD

3. Wait 500 msec

4. Set disc type CD

5. LD on

6. Spindle start

7. Wait 500 msec

8. Focus servo on 0

9. Auto track offset adjust

10. CLVA on

11. Wait 500 msec

3