Sony DAV-EA20 / HCD-EA20 Service Manual ▷ View online
17
HCD-EA20
3-12. OPTICAL PICK-UP (TDP022W)
3
wire (flat type)
24p (CN001)
2
flexible board
(CN003)
5
three step screws (M)
8
optical pick-up
(TDP022W)
1
claw
6
holder (DVU1)
7
three insulators
4
RF board
18
HCD-EA20
SECTION 4
TEST MODE
[KEY TEST]
* Key check and volume check.
Procedure:
1.
Procedure:
1.
Press the POWER button to turn the set on.
2.
To enter the test mode, press three buttons of x , A and
FUNCTION simultaneously.
FUNCTION simultaneously.
3.
In the key check mode, the fluorecent indicator displays
“KEY00 VOL0”. Each time a button is pressed, “KEY**” value
increases. However, once a button is pressed, it is no longer
taken into account.
“KEY00 VOL0”. Each time a button is pressed, “KEY**” value
increases. However, once a button is pressed, it is no longer
taken into account.
4.
“VOL*” value increases like 0, 1, 2, 3, ... if rotating the
VOLUME knob clockwise, or it decreases like 0, 9, 8, 7, ... if
rotating counter-clockwise.
VOLUME knob clockwise, or it decreases like 0, 9, 8, 7, ... if
rotating counter-clockwise.
5.
To exit from this mode, press three buttons x , A and
FUNCTION simultaneously.
FUNCTION simultaneously.
[VERSION DISPLAY MODE]
* The software version is displayed.
Procedure:
1.
Procedure:
1.
Press three buttons of X , NEXT > and FUNCTION
simultaneously.
simultaneously.
2.
The microcomputer version and destination are displayed.
3.
Press the DISPLAY button on the remote commander. The
STR version is displayed.
STR version is displayed.
4.
Press the DISPLAY button on the remote commander. The
DVD version is displayed.
DVD version is displayed.
5.
Each time the DISPLAY button on the remote commander is
pressed, the display changes in the order of microcomputer
version/destination, STR and DVD.
pressed, the display changes in the order of microcomputer
version/destination, STR and DVD.
6.
To exit from this mode, press the POWER button.
[DISPLAY TEST MODE]
* Fluorescent segments are tested when this test is activated.
Procedure:
1.
Procedure:
1.
Press three buttons of X , . PREV and FUNCTION
simultaneously.
simultaneously.
2.
All segments are turned on.
3.
When the DISPLAY button on the remote commander is
pressed, all segments are turned off.
pressed, all segments are turned off.
4.
Press the DISPLAY button on the remote commander, the
display will light up as follows and confirm the display.
display will light up as follows and confirm the display.
5.
Press the DISPLAY button on the remote commander, the
display will light up as follows and confirm the display.
display will light up as follows and confirm the display.
6.
Every pressing of the DISPLAY button on the remote
commander turns on each segments in the same order.
commander turns on each segments in the same order.
7.
To exit from this mode, press the POWER button.
[AMP TEST MODE]
* SOUND FIELD and volume function is tested.
Note:
In advance of Amp test mode SOUND FIELD is set except AFD
AUTO.
Procedure:
1.
1.
Press three buttons of x , NEXT > and H
simultaneously.
simultaneously.
2.
Every time the SOUND FIELD + or SOUND FIELD - button
on the remote commander is pressed, the following items
changes in the order as shown below.
on the remote commander is pressed, the following items
changes in the order as shown below.
“SWAP F2S” (Lch/Rch inputs are output to both FRONT Lch/
Rch and SURR Lch/Rch.)
Rch and SURR Lch/Rch.)
“SWAP F2CW” (Lch input is output to CENTER and Rch
input is output to WOOFER.)
input is output to WOOFER.)
“SWAP FLL” (Lch or Rch input is output to all speakers.)
“EQ MIN” (Bass and treble equalizers are set to -6dB.)
“EQ MAX” (Bass and treble equalizers are set to +6dB.)
“SRAM CHECK” (Not for service)
3.
In the case of headphone inserted, every time the SOUND
FIELD + or SOUND FIELD - button on the remote
commander is pressed, the following items changes in the order
as shown below.
FIELD + or SOUND FIELD - button on the remote
commander is pressed, the following items changes in the order
as shown below.
“HP 2CH”
“HP SURR”
4.
Each time the DDSG button on the remote commander is
pressed, DDSG will change to on or off.
pressed, DDSG will change to on or off.
5.
Each time the NIGHT MODE button on the remote
commander is pressed, NIGHT MODE will change to on or
off.
commander is pressed, NIGHT MODE will change to on or
off.
6.
When the VOLUME knob is turned clockwise or the VOL +
button on the remote commander is pressed, volume goes from
“VOLUME MIN” to “VOLUME 21”.
button on the remote commander is pressed, volume goes from
“VOLUME MIN” to “VOLUME 21”.
7.
When the VOLUME knob is turned clockwise or the VOL +
button on the remote commander is pressed again, volume goes
to “VOLUME MAX”.
button on the remote commander is pressed again, volume goes
to “VOLUME MAX”.
8.
When the VOLUME knob is turned counter-clockwise or the
VOL - button on the remote commander is pressed, volume
goes to “VOLUME 21”.
VOL - button on the remote commander is pressed, volume
goes to “VOLUME 21”.
9.
When the VOLUME knob is turned counter-clockwise or the
VOL - button on the remote commander is pressed again,
volume goes to “VOLUME MIN”.
VOL - button on the remote commander is pressed again,
volume goes to “VOLUME MIN”.
10. To exit from this mode, press the POWER button.
[FORCED RESET MODE]
Procedure:
1.
1.
Press three buttons of X , FUNCTION and A simultaneously.
2.
The set is turned off and microcomputer is reset.
[DVD REPEAT 5 TIMES LIMIT RELEASE MODE]
Procedure:
1.
1.
Set the FUNCTION to DVD.
2.
Press three buttons of x , NEXT > and FUNCTION
simultaneously.
simultaneously.
3.
DVD repeat 5 times limit is released.
II
PRO LOGIC
DIGITAL
MUTING
SLEEP
V CD
JPEG
STEREO
REP 1 TUNED
PBC
MONO
AUTO
NTSC
TRAK
TITLE
CHAP
DDSG
NX
NIGHT
ALBM
ALBM
SHUF
MP3
MULTI
PGM
kHz
MHz
a
a
dts
N
II
MUTING
V
REP
TUNED
PBC
TRAK
CHAP
NIGHT
ALBM
SHUF
MP3
PGM
kHz
dts
X
PRO LOGIC
DIGITAL
SLEEP
CD
JPEG
STEREO
1
MONO
AUTO
NTSC
TITLE
DDSG
ALBM
MULTI
MHz
a
a
19
HCD-EA20
[COLOR SYSTEM SELECTION]
* Color system can be changed to PAL or NTSC.
Procedure:
1.
Procedure:
1.
Set the FUNCTION to DVD.
2.
Turn off the main power.
3.
Press two buttons . PREV and POWER simultaneously.
4.
The color system is changed to PAL or NTSC.
[DISC TRAY LOCK]
The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Setting Procedure :
1.
disc in the store is equipped.
Setting Procedure :
1.
Press the POWER button to turn the set on.
2.
Press two buttons of x and A simultaneously for five seconds.
3.
The message “LOCKED” is displayed and the tray is locked.
Releasing Procedure :
1.
1.
Press two buttons of x and A simultaneously for five seconds
again.
again.
2.
The message “UNLOCKED” is displayed and the tray is
unlocked.
unlocked.
Note:
When “LOCKED” is displayed, the tray lock is not released
by turning power on/off with the POWER button.
[DVD SERVICE MODE (OSD)]
Procedure:
1.
1.
Press the POWER button on the main unit or the ?/1 button
on the remote commander to turn the set on.
on the remote commander to turn the set on.
2.
Set the FUNCTION to DVD.
3.
While pressing two buttons of x and A , turn the VOLUME
knob clockwise to enter the test mode.
knob clockwise to enter the test mode.
4.
The message “SERVICE IN” is displayed on the display. The
Test Mode Menu is displayed on the TV screen.
Test Mode Menu is displayed on the TV screen.
5.
To execute each function, select the number on the remote
commander.
commander.
6.
See the following section for explanation in detail.
7.
To exit from this mode, press the POWER button.
[INTERLACE FORCED SETTING MODE]
* The video signal format is forced to set to interlace.
Procedure:
1.
Procedure:
1.
Set the FUNCTION to DVD.
2.
Press three buttons of x , . PREV and FUNCTION
simultaneously.
simultaneously.
3.
The video signal format is forced to set to interlace.
[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).
using the remote commander and monitor TV. The instructions,
diagnostic results, etc. are given on the on-screen display (OSD).
[TEST DISC LIST]
Use the following test disc on test mode.
TDV-520CSO (DVD-SL): PART No. J-2501-236-A
LUV-P01 (CD):
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.
function to DVD.
2.
While pressing the x and A button, turn the VOLUME
knob clockwise to enter the test mode.
knob clockwise to enter the test mode.
3.
It displays “SERVICE IN” 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)
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 :DAV-EA20
xx
Revision :x.xx
4.
To execute each function, select the desired menu and press its
number on the remote commander (RM-SS200).
number on the remote commander (RM-SS200).
5.
To release from test mode, press the POWER button and turn
the power off.
the power off.
[OPERATING TEST MODE]
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
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. GPIO
5. SD Bus
6. Video
0-0. Quit
Quit the Syscon Diagnosis and return to the Test Mode Menu.
20
HCD-EA20
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.
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 ###
Diag All Check
No.2 Version
2-3. ROM Check Sum
Check Sum = 7BC6
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
output, and therefore you must compare it with the specified value
for confirmation.
Following the message, press the
[NEXT ]
button to go to 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
To quit the diagnosis and return to Check Menu screen, press 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
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.
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.
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
0-2-2. 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
0-3-2. Detail Check
0-4.
GP I/O Check
0-5.
SD Bus Check
0-6.
Video Check
0-2. Version
0-2-2. Revision
The revision number of ROM (IC206) that the program for
the DVD system processor (IC207) is stored.
the DVD system processor (IC207) is stored.
0-2-3. ROM Check Sum
Check sum is calculated. (4 digits hexadecimal number)
>
.
>
.
0-2-4. Model Type
Model name is displayed. (DAV-EA20)
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.
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.
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 (IC207)
pin 150, 151 and 154 (for clock setting port).
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).
(IC706).
0-6. Video Check
Output the color bars for video level adjustment.
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
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.
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.
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
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.
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.
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