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Model
DAV-S400 HCD-S400
Pages
72
Size
6.49 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
dav-s400-hcd-s400.pdf
Date

Sony DAV-S400 / HCD-S400 Service Manual ▷ View online

10
HCD-S400
3-7. OPTICAL PICK-UP (KHM-240AAA)
1
 Floating screw (+PTPWHM 2.6)
2
 Flexible flat cable
     (9 core)
3
 Flexible flat cable
     (26 core)
4
 Step screw (L)
8
 Three insulators
9
 Optical pick-up
     (KHM-240AAA)
5
 Two step screws (M)
6
 Holder (KHM-240)
7
Please refer to the SERVICING NOTE for the cleaning method of the optical pick-up.
11
HCD-S400
4-1. VERSION DISPLAY MODE
Procedure:
1.
Press the   A  button on the main unit or   1   button on the
remote commander to turn the set on.
2.
Press three buttons of  
FUNCTION 
,  .
 PREV
  and A
simultaneously for two seconds.
3.
The message “VER. 1. ** ” is displayed for a moment.
4-2. JOG TEST  MODE
Procedure:
1.
Press the  A   button on the main unit or  1  button on the
remote commander to turn the set on.
2.
Press three buttons of  
BAND 
,  x  and  A  simultaneously.
3.
The fluorescent indicator displays “JOG 0”. The value “JOG
0” increases like +1, +2, +3... if rotating the VOLUME knob
clockwisw,or it decreases like –1, –2, –3,.... if rotating counter-
clockwise.
4.
To exit from this mode, press the  
POWER
  button to turn the
set off.
4-3. KEY TEST  MODE
Procedure:
1.
Press the  A  button on the main unit or  1  button on the
remote commander to turn the set on.
2.
Press three buttons of  
DISPLAY 
,  x  and  A  simultaneously.
3.
The message “KEY NUM 0” is displayed and “0” blinks.
4.
Each time a button is pressed, “KEY NUM 0” value increases.
However, once a button is pressed, it is no longer taken into
account.
5.
When all buttons are pressed, “KEY NUM 11” appears and
the number blinking is stopped.
6.
To exit from this mode, press the  
POWER 
 button to turn the
set off.
4-4. DISPLAY TEST  MODE
Procedure:
1.
Press the  A  button on the main unit or  1  button on the
remote commander to turn the set on.
2.
Press three buttons of 
 BAND 
,  X  and  A  simultaneously.
3.
All segments are turned on.
4.
When the  
NEXT
 >  button is pressed, the display will light
up as follows.
5.
Press the  
NEXT
 >  button, confirm the display.
6.
Press the  
NEXT
 >  button, all segments are turned off.
7.
Every pressing of the  
NEXT
  >  button turns on each
segments in the same order.
8.
To exit from this mode, press the  
POWER
  button to turn the
set off.
4-5. OSD TEST  MODE
Procedure:
1.
Press the  A  button on the main unit or  1  button on the
remote commander to turn the set on.
2.
Set the  
FUNCTION
  to DVD.
3.
While pressing two buttons of  
DISPLAY
  and
 x  simultaneously, turn the VOLUME knob clockwise.
4.
The Test Mode Menu is displayed on the TV screen.
5.
To execute each function, select the number on the remote
commander.
6.
See the following section for explanation in detail.
7.
To exit from this mode, press the  
POWER
  button to turn the
set off.
4-6.
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).
4-7.
STARTING  TEST  MODE
Set the FUNCTION to DVD with the main unit power on. Next,
while pushing the  x  button and the [DISPLAY] button on the main
unit at the same time, turn the VOLUME knob 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 [POWER] button.
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-1030_xx
Revision : 1.xxx
SECTION 4
TEST MODE
ALL 1 DISCS  AUTO
TITLE
TRACK
CHAPTER
INDEX
HTUNED
M MONO
ST S
dB  REPEAT  1
kHz  PROGRAM
MHz  SHUFFLE
PRO  LOGIC
DIGITAL  FM  AM
NTSC  PBC  ANGLE
dts PCM
;
;
ALL 1 DISCS  AUTO
TITLE
TRACK
CHAPTER
INDEX
HTUNED
M MONO
ST S
dB  REPEAT  1
kHz  PROGRAM
MHz  SHUFFLE
PRO  LOGIC
DIGITAL  FM  AM
NTSC  PBC  ANGLE
dts PCM
;
;
12
HCD-S400
4-8.
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 
[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
9. DSD Decoder
_
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 judgment
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 diagnosis
and return to the Check Menu screen, press  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  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 main 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
automatically unless an error is found.
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 (At
the beginning of mass production, the Flash ROM of IC107
is used, but midway it is replaced by the IC108 OTP ROM.
IC107 or IC108) is displayed with four digits.
Below IC107 are all IC107 or IC108.
(2-3) ROM Check Sum
Check sum is calculated.
Error: Not detected.
The 8-bit data are added at addresses 0x000F0000 ~
0x002EFFFF of ROM (IC107) 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 (IC101) is displayed
with 2-digit hexadecimal number.
(2-5) Region
Region code is displayed.
Error: Not detected.
The region code determined from the model code is displayed.
13
HCD-S400
3.
Peripheral
(3-2) 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 (IC101), 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 (IC302), 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
(IC401, 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 CN009 and CN010
of DVD board. Also, disconnect harness from the CN402.
5.
Supply
Caution: Do not conduct this check with a mechanical deck
connected.
An access is made to the stream supply and servo control
IC (IC302) and external RAM (IC303) 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 CN009 and
CN010 of DVD board. Also, disconnect harness from
the CN402.
(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 (IC302), 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 (IC303) connected to the
ARP (IC302) 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.
(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 (IC303) 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 (IC303) connected to the ARP (IC302)
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.
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