DOWNLOAD Sony DAV-C700 / DAV-C900 / HCD-C700 / HCD-C900 Service Manual ↓ Size: 13.59 MB | Pages: 108 in PDF or view online for FREE

Model
DAV-C700 DAV-C900 HCD-C700 HCD-C900
Pages
108
Size
13.59 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
dav-c700-dav-c900-hcd-c700-hcd-c900.pdf
Date

Sony DAV-C700 / DAV-C900 / HCD-C700 / HCD-C900 Service Manual ▷ View online

26
HCD-C700/C900
[0]
Reset SLED TILT
Reset the Sled and Tilt to initial position.
[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
operation 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 Data1
            -– DL –-
 CD LCD
SL
L0
L1
Focus Gain
xx xx
xx
xx
xx
TRK. Gain
xx xx
xx
xx
xx
FCS Balance
xx xx
xx
xx
xx
Focus Bias
xx xx
xx
xx
xx
TRV. Offset
xx xx
xx
xx
xx
L. F. Offset
xx xx
xx
xx
xx
EQ Boost
xx xx
xx
xx
xx
Mirror Time
xx xx
xx
xx
xx
_DOWN: Next Data
CLEAR: Default Set     page.1/2
EEPROM Data1
            -– DL –-
 CD LCD
SL
L0
L1
RF Jitter
xx --
xx
xx
xx
RF Level
xx --
xx
--
--
FE Level
xx --
xx
--
--
FE Balance
xx --
xx
--
--
TRV. Level
xx --
xx
--
--
Analog FRSW
xx xx
xx
xx
xx
PLL DacGain
xx xx
xx
xx
xx
_
 UP  : Prev Data
CLEAR: Default Set     page.2/2
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 disconnection,
then perform adjustment again.
7. Sacd Water Mark
4-12. 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. Start aging with PLAY. 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 [RETURN] key
again to return to the Test Mode Menu.
27
HCD-C700/C900
3-13. 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
information 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” message
is displayed. The EMG. History screen will be restored soon.
How to see Emergency History
1
 : Emergency Code
2
 : Don’t Care
These codes are used for verification of software designing.
3
 : Historical order 1 to 9
Emergency Codes List
10: Communication to IC001 (RF-240 board) failed.
11: Each servo for focus, tracking, and spindle is unlocked.
12: Communication to EEPROM, IC101 (DVD board) failed.
13: Writing of hours meter data to EEPROM, IC101 (DVD board)
failed.
14: Communication to Servo DSP IC302 (DVD board) failed, or
Servo DSP is faulty.
20: Initialization of tilt servo and sled servo failed. They are not
placed in the initial position.
21: Tilt servo operation error
22: Syscon made a request to move the tilt servo to wrong position.
23: Sled servo operation error
24: Syscon made a request to move the sled servo to wrong position.
30: Tracking balance adjustment error
31: Tracking gain adjustment error
32: Focus balance adjustment error
33: Focus bias adjustment error
1.0 
±
 0.02 Vp-p
34: Focus gain adjustment error
35: Tilt servo adjustment error
36: RF equalizer adjustment error
37: RF group delay adjustment error
38: Jitter value after adaptive servo operation is too large.
40: Focus servo does not operate.
41: With a dual layer (DL) disc, focus jump failed.50: CLV
(spindle) servo does not operate.
51: Spindle does not stop.
60: With a DVD disc, Syscon made a request to seek nonexistent
address.
61: With a CD disc, Syscon made a request to seek nonexistent
address.
62: With a CD disc, Syscon made a request to seek nonexistent
track No. and index No.
63: With a DVD disc, seeking of target address failed.
64: With a CD disc, seeking of target address failed.
65: With a CD disc, seeking of target index failed.
70: With a DVD disc, physical information data could not be read.
71: With a CD disc, TOC data could not be read.
80: Disc type judgment failed.
81: As disc type judgment failed, retry was repeated.
82: As disc type judgment failed, a measurement error occurred.
83: Disc type could not be judged within the specified time.
84: Illegal command code was received from Syscon.
85: Illegal command was received from Syscon.
3-14. VERSION  INFORMATION
## Version Information ##
IF con.
Ver: x. xxx (xxxx)
Group    00
SYScon.
Ver: x. xxx (xxxx)
Model    xx
Region   0x
Servo DSP Ver:X.XXX
OPT Type:2 Laser
                   Exit: RETURN
On the Test Mode Menu screen, selecting 
[5]
 displays the ROM
version and region code.
The parenthesized hexadecimal number in version field is checksum
value of ROM.
3-15. VIDEO  LEVEL  ADJUSTMENT
On the Test Mode Menu screen, selecting 
[6]
 displays color bars
for video level adjustment. During display of color bars, OSD
disappears but the menu screen will be restored if pressing any key.
Measurement point
: MONITOR OUT VIDEO
(75 
 terminating resistance)
Measuring instrument : Oscilloscope
Adjustment device
: RV501 on DVD board
Specified value
: 1.0 ± 0.02 Vpp
3
1.
1
2
2
28
HCD-C700/C900
SECTION 4
ELECTRICAL ADJUSTMENT
In making adjustment, refer to 5-2. Adjustment
Related Parts Arrangement.
Note
: During diagnostic check, the characters and color bars can
be seen only with the NTSC monitor. Therefore, for
diagnostic check, use the monitor that supports both NTSC
and PAL modes
This section describes procedures and instructions necessary for
adjusting electrical circuits in this set.
Instruments required:
1) Color monitor TV
2) Oscilloscope 1 or 2 phenomena, band width over 100 MHz,
with delay mode
3) Frequency counter (over 8 digits)
4) Digital voltmeter
5) Standard commander
 * RM-SS800 (1-418-838-11)
6) DVD reference disc
HLX-501 (J-6090-071-A) (dual layer)
HLX-503 (J-6090-069-A) (single layer)
HLX-504 (J-6090-088-A) (single layer)
HLX-505 (J-6090-089-A) (dual layer)
7) SACD reference disc
HLXA-509 (J-6090-090-A)
* Use only the designated remote control when adjusting this
system component.
4-1. ADJUSTMENT  OF  VIDEO  SYSTEM
1. Video Level Adjustment (DVD BOARD)
<Purpose>
This adjustment is made to satisfy the NTSC standard, and if not
adjusted correctly, the brightness will be too large or small.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
MONITOR OUT (VIDEO) connector
(75 
Ω 
terminated)
Instrument
Oscilloscope
Adjusting element
RV501
Specification
1.0 ± 0.02 Vp-p
Adjusting method:
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Adjust the RV501 to attain 1.0 ± 0.02 Vp-p.
Figure 5-1
2. S-terminal Output Check
<Purpose>
Check S-terminal video output.  If it is incorrect, pictures will not
be displayed correctly in spite of connection to the TV with a S-
terminal cable.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
S VIDEO OUT (S-Y) connector
(75 
Ω 
terminated)
Instrument
Oscilloscope
Specification
1.0 ± 0.1 Vp-p
Checking method:
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the S-Y level is 1.0 ± 0.1 Vp-p.
Figure 5-2
1.0 ± 0.02 Vp-p
1.0 ± 0.1 Vp-p
29
HCD-C700/C900
3. Checking S Video Output S-C (DVD BOARD)
<Purpose>
This checks whether the S-C satisfies the NTSC Standard.  If it is
not correct, the colors will be too dark or light.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
CN003 pin 2
Instrument
Oscilloscope
Specification
286 ± 50 mVp-p
Connection:
Checking method:
1) Confirm that the S-C burst is 286 ± 50 mVp-p.
Figure 5-3
286 ± 50 mVp-p
3
2
100
µ
F
75
±
1%
100k
±
1%
CN003
+
Oscilloscope
4-2. ADJUSTMENT  RELATED  PARTS
ARRANGEMENT
DVD  BOARD (SIDE  A)
1
2
9
CN003
RV501
VIDEO LEVEL ADJ
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