Note : For the mechanism section disassembly, refer to
4
the service guide.
Page 2
DISPLAY WINDOW
Indicates GUI operation
is being performed.
This lights during play of
a disc with a sampling
frequency of 96 kHz.
Indicates that title is
being displayed
96 kHz
TITLECHP/TRKREMAIN TOTAL
Indicates the playback mode,
title, type of disc, etc. as follows:
:Compact disc
:DVD
:Video CD
:Playback control playback on Video CD
:Disc table is opening or is open
:Disc table is closing
:Random playback
:Program mode
:Repeat mode
:Start point of 2 point repeat playback
:2 point repeat playback
:Repeat playback of the title
:Repeat playback of the chapter
:Disc repeat
:Cinema mode
:Standard mode
:When memory repeat is selected
:When track repeat is selected
:When chapter repeat is selected
Indication location for Last
Memory is being recorded
in memory.
Indicated Multi-Angle
playback is in progress.
GUI
ANGLE
Indicates that chapter/
track is being displayed
Indicates that playback
settings (condition) have been
memorized.
LAST MEMO CONDITION
Indicates total playback
time of side
Indicates remaining
playback time
Indicates Dolby digital playback
DOLBY
DIGITAL
:When side repeat is selected
:When title repeat is selected
:When all repeat is selected
:
When program repeat is selected
:Playback
:Stop
:Pause
:No disc
:Power is turned off
:Menu mode
:Title menu
:Chapter menu
:Subtitle menu
:Set-up menu
:Audio menu
:Angle menu
:Condition memory
:Last memory
This is used for output of the digital audio signal
recorded on CDs and Video CDs. Depending on the
components you connect this digital output to, noise
may be generated.
When connecting to an AC-3 compatible component,
use the PCM/ jack. (Refer to the chart on the
right.)
Disc illumination
Turned off when a disc other
than a DVD is played back.
Disc table
ANGLE
LAST MEMORY
96 kHz
GUI
TITLE CHP/TRK REMAINTOTAL
'
DIGITAL VIDEO
Display window
Regular AV amp
Your
amp
AC-3 compatible
amp
Coaxial Connect to the coaxial jack, and select PCM from the menu.
Optical Connect to the optical jack, and select PCM from the menu.
Coaxial Connect to the PCM/
Optical Connect to the optical jack, and select PCM/DOLBY DIGITAL from the menu.
Remote sensor
DOLBY
DIGITAL
Reverse 41
button
Open/Close 0 button
Play/Pause 6 button
0
14¡¢
7
£¥8
with
Stop 7 button
Forward ¡¢ button
jack, and select PCM/DOLBY DIGITAL from the menu.
48
Video output jack
Optical Digital Output
Audio optical digital output. Switchable between
PCM/DOLBY DIGITAL and PCM output.
DIGITAL OUT
PCM/
Ÿ
PCM/Ÿ(OPT)
12
VIDEO OUT
S-VIDEO OUT
AUDIO OUT
RL
1
2
Audio output jacks
There are two sets of outputs, 1 and
2, which you can simultaneously
connect. Connect 1 to the TV , and 2 to
your AV amp.
S-Video output jack
TV SYSTEM Switch
TV SYSTEM
NTSC PAL AUTO
Power cord connection terminal.
AC IN
Page 14
Spindle
Motor
Loading
Motor
TA
FA
Slider
HA
OEIC
TE
GEN
IC301
TLC5540INS
A/D
IC701
PD4833A
LSI-11
Sync
Demod
Spindle
control
Sub-CPU
I/F
IC201
LC78650NE
CD DSP
EFM
Decoder
Servo
DSP
IC702
HM514800CJ-7
4M bit DRAM
VBR Buffer
DRAM I/F
(bus arbitor)
ECC &
ID Reg.
CD-ROM Sync gen.
Sub-code Buffer
CD PCM
CD Digital Out
IC501
PD4889A
CPU
I/F
DMA
Mechanism
Control
CPU
System CPU
(32 bit RISC)
IC603
VYW1602
ROM
SREO
XSACK
IC601
PD3381A
Display
CPU
IC604
TC551001BFL-85
RAM
Program Stream
SREO
XSACK
IC101
PD4890A
(Video, Audio, Sub-picture,GUI)
CPU
I/F
SYSTEM
Decoder
(DMUX)
AV Sync
controller
DVD/V-CD
AV Decoder
IC801
MB86371
(MPEG2 Decoder)
IC802
MB811171622A-100FN
16M bit SDRAM
CODE Buffer
Memory Controller
MPEG2
Video
Decoder
Sub-
picture
Decoder
MIX
NTSC
/PAL
encode
Audio Decoder
GUI
DAC
Copy
DAC
Guard
DAC
AC3/MPEG1
S/PDIF
D/A
7.2 BLOCK DIAGRAM
Video Out
Y
C
Comp.
Lt
Rt
PCM D-Out
AC3 D-Out
47
Mechanism
sense SW
Key-SW
& Display
Page 15
DV-P2E
SERVICE MANUAL
VORSICHT:
Data contained within this Service
Verbesserungen
ä
ndern.
MANUEL D’ENTRETIEN
WARTUNGSHANDBUCH
CAUTION:
Before servicing this chassis, it is important that the service technician read
the “Safety Precautions” and “Product Safety Notices” in this service manual.
ATTENTION:
Avant d’effectuer l’entretien du châassis, le technicien doit lire les
«Précautions de sécurité» et les «Notices de sécurité du produit» présentés
dans le présent manuel.
No. 0201
manual is subject to alteration for
improvement.
Les données fournies dans le
présent manuel d’entretien
peuvent faire l’objet de
modifications en vue de
perfectionner le produit.
Die in diesem Wartungshandbuch
Vor Öffnen des Gehäuses hat der Service-Ingenieur die „Sicherheitshinweise“
und „Hinweise zur Produktsicherheit“ in diesem Wartungshandbuch zu lesen.
This service manual is intended for qualified service technicians ; it is not meant for the casual do-ityourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained
to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do so and refer the repair to a qualified service technician.
IMPORTANT
THIS HITACHI APPARATUS CONTAINS
LASER OF CLASS 1.
SERVICING OPERATION OF THE APPARATUS
SHOULD BE DONE BY A SPECIALLY
INSTRUCTED PERSON.
LASER DIODE CHARACTERISTICS
MAXIMUM OUTPUT POWER : 7 mw
WAVELENGTH : 650 nm
LABEL CHECK
(Printed on the Rear Panel)
Additional Laser Caution
1.Inside detection switch (S201 on the INSB assy) and loadingstatus detection switch (S301 on the LOSB assy) are detected
by the microprocessor (IC501 in the DVDM assy).
• To permit the laser diode to oscillate, it is required to set the
inside detection switch for the inside position (S201 : ON) and to
set the loading-status detection switch for the clamp position (the
center terminal of S301 is shorted to +5V). The laser diode
oscillation will continue if pin 13 of IC101 is shorted to +5V (fault
condition) in the DVDM assy.
In the test mode ∗ , the laser diode oscillates when microprocessor detects a PLAY signal, or when the PLAY key is pressed
(S107 ON in the FLKB assy), with the above requirements satisfied.
2.When the cover is open, close viewing through the objective lens
with the naked eye will cause exposure to the laser beam.
∗ : Refer to page 40.
2
Page 18
2. EXPLODED VIEWS AND PARTS LIST
NOTES:• Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
2.1 PACKING
The mark found on some component parts indicates the importance of the safety factor of the part.
•
Therefore, when replacing, be sure to use parts of identical designation.
Screws adjacent to mark on the product are used for disassembly.
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,
REPLACE ONLY WITH SAME TYPE NO. 49101.5, MFD BY LITTELFUSE
INC. FOR P211 AND 491001 MFD. BY LITTELFUSE INC. FOR P311.
RKP1751
CN10
!
!
C10 0.01/250
ACG7010
K
MSWB ASSY
(PIVWG1882)
D
22
J
K
1234
Page 38
1
3.8 SCCB ASSY
SCCB ASSY
L
(PIVWV1577)
234
A
B
I
CN19
C
D
L
1
2
3
4
23
Page 39
1
23
4. PCB CONNECTION DIAGRAM
A
NOTE FOR PCB DIAGRAMS :
1. Part numbers in PCB diagrams match those in the schematic
diagrams.
2. A comparison between the main parts of PCB and schematic
diagrams is shown below.
Symbol In PCB
Diagrams
BCE
BCE
D
Symbol In Schematic
Diagrams
BCEBCE
BCE
DGGSS
BCE
DGS
Part Name
Transistor
Transistor
with resistor
Field effect
transistor
4
3. The parts mounted on this PCB include all necessary parts for
several destinations.
For further information for respective destinations, be sure to
check with the schematic diagram.
4. View point of PCB diagrams.
Connector
Capacitor
SIDE A
P.C.Board
Chip Part
SIDE B
B
Resistor array
3-terminal
regulator
4.1 LOMB, LOSB, INSB AND FGSB ASSEMBLIES
LOSB ASSY
B
C
CN107
H
SLDR
MOTOR
(PIVNP1628-A)
INSB ASSY
C
LOMB ASSY
A
FGSB ASSY
D
SIDE A
D
SPINDLE MOTOR
(PIVNP1627-B)
ASSY
24
1234
DABC
Page 40
1
234
4.2 PWSB AND DILB ASSEMBLIES
PWSB ASSY
F
DILB ASSY
G
(PIVNP1625-B)
(PIVNP1625-B)
CN102
E
A
SIDE A
B
PWSB ASSY
F
DILB ASSY
G
CN103
E
(PIVNP1625-B)
(PIVNP1625-B)
C
SIDE B
D
FG
1
2
3
4
25
Page 41
1
4.3 FLKB ASSY
A
E
B
FLKB ASSY
23
SIDE A
4
CN201
F
SIDE B
C
FLKB ASSY
E
D
Q105
26
E
1234
Page 42
5
G
CN301
678
A
CN105
H
B
(PIVNP1625-B)
Q103IC102
C
Q105IC101Q101 Q107 Q106 Q104 Q108
5
6
7
(PIVNP1625-B)
E
8
D
27
Page 43
1
23
4
4.4 DVDM ASSY
A
IC601
B
IC701
IC501
Q401
|
Q403
IC506
IC401
IC302
IC303
Q301
IC203
VC301
CN101
E
• This PCB is a four-layered board. Middle layer is mainly connected to Vcc and GND.
CN201
J
DVDM ASSY
H
B
CN301
IC202
IC806
IC807
Q291
IC204
IC801
IC151
C
D
IC161
IC271
IC171
IC824
Q802
IC206
Q801
Q105
IC902
IC815 IC816
Q455
Q891
IC813
Q102
IC814
Q873
IC818
|
IC820
IC810
IC811
VR801
VR891
PICKUP
ASSY
(PIVNP1624-C)
28
CN301
I
CN901
I
CN191
I
SIDE A
H
1234
Page 44
1
DVDM ASSY
H
234
A
IC505
Q601
|
IC605
Q603
Q771
IC504
Q772
IC502
IC603
IC503
IC602
B
IC301
IC604
IC703 IC817
IC702
IC201
IC808
IC809
IC205
IC805
IC821
IC802
Q261
Q871
Q851
Q831
Q106
IC901
Q107
Q872
Q852
Q832
IC101
C
IC804
Q103
Q108
|
Q110
Q104
D
(PIVNP1624-C)
SIDE B
H
1
2
3
4
29
Page 45
1
4.5 A VJB ASSY
A
B
AVJB ASSY
I
IC102
IC101
IC201
23
VC301
H
4
CN801
CN803
H
IC191
Q502
Q501
C
L
CN100
Q602
Q601
IC701
D
H
SIDE A
CN802
IC901
30
I
1234
(PIVNP1626-B)
Page 46
1
AVJB ASSY
I
234
A
IC301
|
IC306
Q121
|
Q124
IC102
IC201
Q221
|
Q224
Q511
|
Q514
Q521
|
Q524
B
C
SIDE B
1
IC701
D
IC901
(PIVNP1626-B)
31
I
2
3
4
Page 47
1
23
4.6 POWER SUPPLY, MSWB AND SCCB ASSEMBLIES
A
MSWB ASSY
K
AC IN
B
POWER SUPPLY ASSY
J
4
Q101
|
Q103
(PIVNP1626-B)
SCCB ASSY
L
C
CN100
I
IC201
Q511
IC411
IC711
CN19
Q108
Q107
CN101
(PIVNP1629-A)
D
SIDE B
H
SIDE A
32
JKL
1234
Page 48
5. PCB PARTS LIST
NOTES:•Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
The mark found on some component parts indicates the importance of the safety factor of the part.
•
Therefore, when replacing, be sure to use parts of identical designation.
When ordering resistors, first convert resistance values into code form as shown in the following examples.
•
Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%,
and K=10%).
Note 1:
Remove the tray when adjusting
the tangential and radial
adjustment screws.
Note 2:
After the adjustment, stabilize
the screw with an adhesive.
38
Page 54
6.2 JIGS AND MEASURING INSTRUMENTS
CD test disc (PIABEX-784)
Precise screwdriver
Frequency counter
Display digit 8-digit
X1
JITTER
27M
LEVEL
DVD test disc (PIDVD-MJK1)Screwdriver (medium)
Screwdriver (large)
TV monitor
Screwdriver (medium)
Test mode remote control
unit (PIGGF1067)
Screwdriver (small)
CH1 CH2
(X)(Y)
Dual-trace oscilloscope
(with delay)
Frequency band 40MHz
Hexagonal screwdriver
Jitter Meter
Equalizer Unit
39
Page 55
6.3 TEST MODE
TEST MODE: ON
POWER
ON
ESCTEST
PIGGF1067
Test mode
remote control
unit
TEST MODE: DISC SET
• With TRAY
<TRAY OPEN>
REPEAT A
TEST MODE: PLAY
<TRACKING OFF PLAY>
TEST
TEST
+
2
TILT-OFF
TRKG-OFF
5
PLAY TILT- OFF
TRKG- OFF
DVD disc
e
E
<TRAY CLOSE>
REPEAT A
TILT-OFF(N)
TRKG-ON
PLAY TILT- OFF(N)
TRKG- ON
CHECK
DVD:S-CDV
TILT-OFF(N)
TRKG-OFF
<TRACKING ON PLAY>
TEST MODE: OFF
POWER
OFF
40
TILT-OFF
TRKG-ON
OR
ESC
PIGGF1067
Test mode
remote control
unit
Page 56
6.4 NECESSARY ADJUSTMENT POINTS
When
EXCHANGE MECHANISM ASSY PARTS
Exchange pickup
Exchange spindle motor
EXCHANGE PCB ASSY
Exchange board
AVJB ASSY
Exchange board
DVDM ASSY
Adjustment Points
Mechanical
point
Electric
point
Mechanical
point
Electric
point
Mechanical
point
Electric
point
Note : is adjusted already.
Mechanical
point
1 289
,
Electric
point
Note : and are adjusted already.
When replacing the FLASH MEMORY (IC603) on
the DVDM Assy, follow the "6.5 REGION SETTING".
6.5 REGION SETTING
Perform this operation after confirming the region number of each destination on the cover.
Region number decided once can be changed never again.
12
POWER
ON
Setting end
Indication of
disappears.
2
Ask the Region.
[ Player's Region Setting ]
〈 2 〉 : Region 2
〈 4 〉 : Region 4
Pick out any one of these !
(Blinking)
Note : Region is decided by destination of the player
automatically, and there is a case when it
doesn't ask on this screen. There is not need
of this setting at that occasion.
〈 etc. 〉
34
etc.
〈 4 〉
3
4
OROR
〈 2 〉
3
2
Key input the number with the test mode remote control unit (PIGGF1067).
41
Page 57
6.6 MECHANICAL ADJUSTMENT
Tangential Skew and Radial Skew Coarse Adjustment
1
• Test mode
TRKG
• Play the DVD test disc
at outer track.
→ OFF
START
DVDM ASSY
CN201
RFO
5
Player
Mechanism
assy
Tangential
Adjustment
Screw
∗
See “Adjustment
points”.
Mechanism
assy
Radial
Adjustment
Screw
∗
See “Adjustment
points”.
Probe (10:1)
RF(11T)
Max.
RF(11T)
Max.
CH1 CH2
(X)(Y)
Oscilloscope
V: 50mV/div.
H: 0.5µsec/div.
AC mode
DVD Jitter Adjustment
2
TEST DIG/ANA
• Test mode
TRKG
• Play the DVD test disc
at outer track
(around #1F0000).
→ ON
Player
START
DVDM ASSY
CN201
RFO
5
EQ
UNIT
∗
points”.
VIDEO OUT
∗
points”.
Mechanism
assy
Tangential
Adjustment
Screw
See “Adjustment
Mechanism
assy
Radial
Adjustment
Screw
See “Adjustment
Probe (10:1)
JT:Min.
VIDEO IN
JT:Min.
JT[0000] 0280
TV monitor
CHECK
Jitter < 6.0 nS
LEVEL
X1
JITTER
27M
42
Jitter Meter
Page 58
6.7 ELECTRICAL ADJUSTMENT
1
18MHz Master Clock Adjustment
• Normal mode
• Power ON
Player
START
DVDM ASSY
6
IC813
2
VCO Offset Adjustment
AVJB ASSY
27MHz ± 20Hz
VC301
Frequency counter
• Normal mode
• Play the DVD test disc
START
DVDM ASSY
1
IC302
Player
DVDM ASSY
VC301
Probe (10:1)
CH1 CH2
(X)(Y)
1.9V ± 0.1V
GND
Oscilloscope
V: 50mV/div.
H: 10msec/div.
DC mode
TV trigger
43
Page 59
3
Video Output Level Adjustment
• Normal mode
• Still the DVD test disc
100% White Screen.
START
TV monitor
VIDEO
OUT
VIDEO
IN
Player (Rear)
DVDM ASSY
VR801
Probe (10:1)
CH1 CH2
(X)(Y)
Oscilloscope
1Vp-p
V: 20mV/div.
H: 10µsec/div.
AC mode
TV trigger
44
Page 60
6.8 OPERATIONS IN THE TEST MODE
Test Mode Remote Control Unit (PIGGF1067)
Player status
PlayStop
PlayStill
Tray
open
Play
REPEAT B
PAUSE
+10
3
1
8
3
CHP/TM
Tray Move
Tray Close
Tray Move
Tray Open
Search to
input frame #
# 3183
LASER
SR
DISC
TEST
MODE
REP.A REP.B STEREO P. N
A,MON TV/LDP
SIDE
ABSCAN
×3
CHAPTER
SKIP
123CLEAR
456+10
7890
FRM/TIM CHAP CHP/TIM SEARCH
DIG/ANA DISP
ESCCX
×3
PAUSE
TEST
−
SPEED
STILL
STEP
+
PLAY
PIGGF1067
Clamp
TEST 3
Clamp
Tray
REPEAT A
open
Clamp
TEST 2
SPDL ON,
TRK servo OFF
TRK
servo
OFF
TRK
servo
ON
+
Focus sweep
(Up and Down)
Slider Move
Disc clamp
TEST 5
+
TRK servo
ON
TRK servo
OFF
TV Monitor Display
Character in bold : Item name
: Information display
Address
Tilt error value, Tilt servo status
Tracking status
Spindle status
AGC setting
FTS servo IC information
C1 error value of CD and DVD
Internal operation mode of
the mechanism control
Disc judgment
Pickup
Note : Switch the first and second screen
by pressing the [DISPLAY] key on the
remote control unit.
Remote control code
Key code
Mechanical position value
Slider position
Output video system
FL controller version
Region setting for the player
Flash ROM version
System controller revision
DVD mechanism controller revision
AV-1 chip version
First screen display
FL controller version
GUI-ROM number
Part No. of flash ROM and system controller
Part No. of DVD mechanism controller
Second screen display (at lower right portion of the screen)
45
Page 61
7. GENERAL INFORMATION
7.1 DISASSEMBLY
1
1
2
1
1
1
1
DVDM ASSYBONNET
4
1
4
Be careful of the flexible cable.
1
2
3
DISC TRAY
2
1
3
POWER
1
2
5
2
OPEN/CLOSE
DVDM ASSY
DVDM ASSY
3
6
6
46
3
Note : For the mechanism section disassembly, refer to
4
the service guide.
Page 62
7.2 BLOCK DIAGRAM
CODE Buffer
16M bit SDRAM
IC802
MB811171622A-100FN
(Video, Audio, Sub-picture,GUI)
Memory Controller
I/F
CPU
GUI
Sub-
picture
Decoder
Video
MPEG2
Decoder
SYSTEM
(DMUX)
Decoder
Video Out
MIX
Y
DAC
NTSC
C
DAC
Copy
Guard
/PAL
Comp.
DAC
encode
AV Sync
Lt
Rt
PCM D-Out
D/A
S/PDIF
AC3/MPEG1
Audio Decoder
DVD/V-CD
controller
AC3 D-Out
(MPEG2 Decoder)
AV Decoder
IC801
MB86371
IC601
PD3381A
IC604
System CPU
(32 bit RISC)
IC603
VBR Buffer
4M bit DRAM
IC702
HM514800CJ-7
IC701
PD4833A
RAM
TC551001BFL-85
ROM
VYW1602
CPU
DRAM I/F
(bus arbitor)
Sync
LSI-11
Demod
A/D
IC301
TLC5540INS
HA
OEIC
Program Stream
I/F
DMA
ECC &
ID Reg.
control
Spindle
SREO
XSACK
SREO
XSACK
CD-ROM Sync gen.
Sub-code Buffer
I/F
Sub-CPU
TE
GEN
CD PCM
IC201
CD DSP
LC78650NE
CD Digital Out
EFM
Servo
Decoder
IC501
PD4889A
DSP
IC101
PD4890A
CPU
Control
Mechanism
CPU
Display
Key-SW
& Display
sense SW
Mechanism
TA
FA
Motor
Spindle
Slider
Motor
Loading
47
Page 63
8. PANEL FACILITIES AND SPECIFICATIONS
8.1 PANEL FACILITIES
FRONT PANEL
ST ANDBY indicator
DVD PLAYER
STANDBY
POWER
—OFF_STANDBY/ON
ÛN¿◊<x
FL OFF
Display OFF button
(FL OFF)
POWER switch
REAR PANEL
Digital Output Jack (Coaxial)
This is used for output of the digital audio signal
recorded on CDs and Video CDs. Depending on the
components you connect this digital output to, noise
may be generated.
When connecting to an AC-3 compatible component,
use the PCM/ jack. (Refer to the chart on the
right.)
Disc illumination
Turned off when a disc other
than a DVD is played back.
Disc table
ANGLE
LAST MEMORY
96 kHz
GUI
TITLE CHP/TRK REMAINTOTAL
'
DIGITAL VIDEO
Display window
Regular AV amp
Your
amp
AC-3 compatible
amp
Coaxial Connect to the coaxial jack, and select PCM from the menu.
Optical Connect to the optical jack, and select PCM from the menu.
Coaxial Connect to the PCM/
Optical Connect to the optical jack, and select PCM/DOLBY DIGITAL from the menu.
Remote sensor
DOLBY
DIGITAL
Reverse 41
button
Open/Close 0 button
Play/Pause 6 button
0
14¡¢
7
£¥8
with
Stop 7 button
Forward ¡¢ button
jack, and select PCM/DOLBY DIGITAL from the menu.
48
Video output jack
Optical Digital Output
Audio optical digital output. Switchable between
PCM/DOLBY DIGITAL and PCM output.
DIGITAL OUT
PCM/
Ÿ
PCM/Ÿ(OPT)
12
VIDEO OUT
S-VIDEO OUT
AUDIO OUT
RL
1
2
Audio output jacks
There are two sets of outputs, 1 and
2, which you can simultaneously
connect. Connect 1 to the TV , and 2 to
your AV amp.
S-Video output jack
TV SYSTEM Switch
TV SYSTEM
NTSC PAL AUTO
Power cord connection terminal.
AC IN
Page 64
DISPLAY WINDOW
Indicates GUI operation
is being performed.
This lights during play of
a disc with a sampling
frequency of 96 kHz.
Indicates that title is
being displayed
96 kHz
TITLECHP/TRKREMAIN TOTAL
Indicates the playback mode,
title, type of disc, etc. as follows:
:Compact disc
:DVD
:Video CD
:Playback control playback on Video CD
:Disc table is opening or is open
:Disc table is closing
:Random playback
:Program mode
:Repeat mode
:Start point of 2 point repeat playback
:2 point repeat playback
:Repeat playback of the title
:Repeat playback of the chapter
:Disc repeat
:Cinema mode
:Standard mode
:When memory repeat is selected
:When track repeat is selected
:When chapter repeat is selected
Indication location for Last
Memory is being recorded
in memory.
Indicated Multi-Angle
playback is in progress.
GUI
ANGLE
Indicates that chapter/
track is being displayed
Indicates that playback
settings (condition) have been
memorized.
LAST MEMO CONDITION
Indicates total playback
time of side
Indicates remaining
playback time
Indicates Dolby digital playback
DOLBY
DIGITAL
:When side repeat is selected
:When title repeat is selected
:When all repeat is selected
:
When program repeat is selected
:Playback
:Stop
:Pause
:No disc
:Power is turned off
:Menu mode
:Title menu
:Chapter menu
:Subtitle menu
:Set-up menu
:Audio menu
:Angle menu
:Condition memory
:Last memory
FE generated in the RF IC is sent to the
Digital servo IC.
For a DVD, the servo is turned on during
the transition from “Up” to “Down” of
the first-order sine wave. For a CD, it
turns on during the transition from
“Down” to “Up” of the first-order sine
wave.
When the servo is turned on, the level of
PH (the envelope of the bright side of RF)
increases, and DRF becomes H. The
kick-brake pulses, such as those for
FOCUS jump, are also output from pin
49 of IC201.
Yes
• FOCUS SERVO
PICKUP
OEIC
FOCUS
COIL
MIRR Modulation
SLDR Servo ON
(Auto Focus Bias)
RF
B1
B2
B3
B4
LD
MD
Measurement
T Servo ON
F Gain Adj.
T Gain Adj.
AFB Adj.
Layer Det.
Lead-in Search
PLAY
3
5
IC101
RFIC
6
7
8
11 1222
1
IC151
DRIVER
2
58
31
13
4
PH
FE
LASER
SGC
FDO
32
35
SERVO IC
54
44
49
IC201
DIGITAL
26
OEIC GAIN
ADDRESS
&
BUS
DRF
54
IC501
MECH.
CONTROL
27
• FOCUS LOCK TIMING
CDDVD
LDON
UP
FDO
FE
DRF
(FOK)
UP
3
Page 70
1.2.3 Tracking / Slider Servo
ATB: The tracking balance compensation is
achieved by outputting the offset from
the TBAL output at pin 46 of the digital
servo IC, and by biasing the charge pump
resistor for phase-difference error of
RFIC.
The difference is detected by processing
TE at pin 34 of IC 201 with an internal
digital equalizer.
TDO: In addition to the servo output, the low-
band components, such as the kick-brake
for jump, are added for TDO output.
SLDO: The low-band components of TE are
processed by the internal digital
equalizer, and deadband is added for
SLDO output. The offset voltage for
pickup movement is also included in the
SLDO output.
1.2.4 SPINDLE SERVO
• SPDL SERVO
• TRACKING / SLIDER SERVO
PICKUP
OEIC
TRKG
COIL
TE RF
B1
B2
B3
B4
M
SLDR
4
5
6
7
8
IC101
26
27
16
17
RFIC
IC151
DRIVER
ATC
TE
TBAL
34
SERVO IC
46
IC201
DIGITAL
ADDRESS
&
BUS
IC501
MECH.
CONTROL
26
28
CP
50
TDO
24
SLDO
19
47
OEIC
RF
IC101
3
RFIC
RFO
50
CLK
32
RF
41
(27M)
12
VCO
IC201
57
25
DIGITAL
SERVO
48
SPDO
31
SPDO
(Compatible)
SPDL +
SPDL
M
SPDL -
12
13
FG
IC161
DRV
(Base)
For a CD, the RF signal output from pin 32 of the RF IC is converted
to binary in IC201. By comparing the binary value with the reference
CLK (clock), the SPDL ERR signal is output from pin 48.
For a DVD, the SPDL ERR signal is generated from the PWM signal
output from LSI-ΙΙ. Upon receiving this signal via pin 31, IC201
also outputs it from pin 48, switching from the CD SPDL ERR
signal.
IC301
A/D
10
IC302
(1/2)
IC271
(2/2)
3
|
V165
8 bit
IC271
(1/2)
APC
AFC
ASC
200
|
207
176
178
180
177
161 163 166 167
FPWM
VPWM
PPWM
RPWM
DUTY50
179
IC701
LSI II
159
95
FG
4
Page 71
1.2.5 Disc Determination
Determination is achieved by checking the sine wave by sweeping
the lens with the OE IC gain at L and the FSC error amplifier (SGC)
at the default setting. If no sine wave is detected, checking is retried
after switching the OE IC gain to H and increasing the gain of the
FSC error amplifier (SGC). If no sine wave is detected again, it is
regarded as the NO DISC condition.
If one half of the sine wave detected at the first lens sweep is of a
value less than 0.5 V, the OE IC gain is set to H and the peak-topeak value of the sine wave is roughly adjusted to 1.8 Vp-p.
By sweeping the lens around the height where the sine wave has
been detected, disc determination is performed, and the sine wave
is finely adjusted to 1.8 Vp-p.
Offset compensation
Lens sweep
Checking
the sine wave
None
Yes
Level check
Less than 0.5V
OEIC gain = H
FCS AMP gain up
Lens sweep
Checking
the sine wave
None
NO DISC
More than 0.5V
OEIC gain = H
Yes
Roughly adjust to
1.8Vp-p sine wave
Disc determination
Finely adjust to 1.8Vp-p
sine wave
END
5
Page 72
2. TEST MODE
2.1 HOW TO ENTER THE TEST MODE
There are three ways of entering the test mode.
1. Short-circuit the terminals (TP6006 and TP6007) for test mode
entry located at the side of the system control IC (IC601) of DVDM
ASSY, and turn the power on.
2. Press the [ESC] key and the [TEST] key on the Service Remote
Control [PIGGF1067] while the player is in the power on mode.
3. Connect a personal computer to the RS232C terminal (CN106)
and input the entry command (TE) of the test mode from the
personal computer.
Note: FL indication and LED come all to light until key operation
is done when entering the test mode.
2.2 RELEASE THE TEST MODE
There are three methods to escape the test mode.
1. Turn the power off.
2. Press [ESC] key of the remote control unit. At this time, reset it
for a while.
3. Connect a personal computer with the RS232C terminal (CN106),
and input normal mode entry command (NE) from the personal
computer.
2.3 THE EXPLANATION OF EACH
FUNCTION
The function that can be operated in the test mode is as the following.
Use a LD remote control unit in the test mode.
(1) Door Open/Close
1. Press [REPEAT A-B] (48) key of the remote control unit.
2. Press [OPEN/CLOSE] key of the player from the stop condition.
(5) Pause
1.It becomes pause condition by pressing [CX] (0E) key of the
remote control unit in the play.
2.Pause ON/OFF changes alternately by pressing [PAUSE] (18)
key in the play.
(6) Search Address Input Entry
It becomes the address input mode when [+10] key (1F) is pressed.
(indication for the most significant digit : > )
Indicate the last address as the initial condition in this time.
Only in case of DVD, addition search (indication for the most
significant digit : + ) and subtraction search (indication for the most
significant digit : – ) are able to select in order by pressing [+10]
key continuously.
The address where input value was added to the present address is
make to search with addition search.
The address where input value was subtracted to the present address
is make to search with subtraction search.
In case of CD is only absolute time search.
Also address clear and release from the address input mode are able
to perform by 2 steps by pressing [CLEAR] (45) key.
(7) Search Address Input
Press [0] to [9] keys of the remote control unit.
Set up the address by the hexadecimal number with DVD.
When [PROGRAM] (4C) key is pressed in the address input mode,
input mode changes to hexadecimal number input (Indicates "∗"
mark), and [1] to [6] keys are input as [A] to [F].
At this time, [7], [8], [9] and [0] keys are not accepted.
Also the hexadecimal number input and the decimal number input
can be changed with toggle.
(2) Stop
1. Press [REPEAT] (44) key of the remote control unit.
2. Press [STOP] key of the remote control unit or the player from
the stop condition.
(3) Play 1 (Demultiplex exist which it tries to output
the playback screen)
1. Press [PLAY] (17) key of the remote control unit.
• DVD rise up at the tracking close. Playback screen may not
appear because the NAVI information isn't read in the test mode.
(4) Play 2 (Demultiplex is absent which performing
trace only)
1. Press [TV/LDP] (0F) key of the remote control unit.
• Perform only tracing with DVD, and there are no video and
audio output.
(8) Search Practice
1. Press [CHP/TIM] (13) key of the remote control unit.
Practice the on screen no playback (Doesn't demultiplex) after
the search with DVD.
2. Press [PLAY] (17) key of the remote control unit.
Practice the on screen playback (demultiplex exists) after the
search with DVD.
(9) Tracking Open
1. Press [STEP FWD] (54) key of the remote control unit in the play
condition.
2.Switch the open/close by pressing [PLAY] key of the remote
control unit or the player during the play (CD only).
6
Page 73
(10) Tracking Close
1. Press [STEP RVS] (50) key of the remote control unit in the play
condition.
2.Switch the open/close by pressing [PLAY] key of the remote
control unit or the player during the play (CD only).
(11) Slider In
1.Press [SCAN RVS] (11) key of the remote control unit in the
tracking off condition.
2. Turn the shuttle of the remote control unit in the REV direction
(2C to 2F) in the tracking off condition. (DVD only)
(12) Slider Out
1.Press [SCAN FWD] (10) key of the remote control unit in the
tracking off condition.
2. Turn the shuttle of the remote control unit in the FWD direction
(28 to 2A) in the tracking off condition. (DVD only)
(19) Tilt Up
A manual moves in the going up direction when [SKIP FWD] (52)
key of the remote control unit is pressed during the play at the time
of tilt off.
(20) Focus Jump +
Focus jumps in 1 layer from 0 layer when [MULTI FWD] (58) key
of the remote control unit is pressed. (DVD only)
(21) Focus Jump –
Focus jumps in 0 layer from 1 layer when [MULTI REV] (55) key
of the remote control unit is pressed. (DVD only)
(22) The First And The Second Screen Switching
Every time [DISPLAY] (43) key of the remote control unit is pressed,
the contents of the version indication part (the bottom right of the
screen) change. (Refer to page 10.)
(13) Scan In
1.Press [SCAN RVS] (11) key of the remote control unit in the
tracking on condition.
2. Turn the shuttle of the remote control unit in the REV direction
(2C to 2F) in the tracking on condition.
• DVD can be scanned only in the case of the play 2 (playback
without demultiplex).
(14) Scan Out
1.Press [SCAN FWD] (10) key of the remote control unit in the
tracking on condition.
2. Turn the shuttle of the remote control unit in the FWD direction
(28 to 2A) in the tracking on condition.
• DVD can be scanned only in the case of the play 2 (playback
without demultiplex).
(15) Loading In/Out
When pressing [SKIP REV] (53) key of the remote control unit in
the open condition, it loads in the clamp direction. Then it loads in
the open direction when pressing [SKIP FWD] (52) key.
• This function can practice only when it is indicated with "OPEN"
in FL.
(16) Tilt Neutral
Press [SPEED DOWN] (46) key of the remote control unit.
(17) Tilt Servo On/Off
a. On
Press [SPEED UP] (47) key of the remote control unit.
b. Off
Press [SKIP REV] (53) key and [SKIP FWD] (52) key of the
remote control unit at the tilt servo on or the tilt neutral.
(23) Screen Display On
1. Press [DISPLAY] (43) key of the remote control unit.
2. Display on/off switches every time [PROGRAM] (4C) key of the
remote control unit is pressed.
• When [DISPLAY] key is pressed in the display on, change the
part number indication of the microprocessor and revision
indication.
• Initial state is screen display on and it becomes the part number
indication of the microprocessor.
(24) Screen Display Off
1. Press [AUDIO] (1E) key of the remote control unit.
2. Display on/off switches every time [PROGRAM] (4C) key of the
remote control unit is pressed.
(25) Background Color Switching
1. Change the background color (eight colors) prepared for in
advance every time [2/R] (49) key of the remote control unit is
pressed in order.
[Blue→Green→Light blue→Red→Purple→Yellow→
Gray→Black→Blue ....]
2. Change the background color (eight colors) prepared for in
advance every time [1/L] (4B) key of the remote control unit is
pressed in order.
[Blue→Black→Gray→Yellow→Purple→Red→
Light blue→Green→Blue ....]
(26) Video Output Switching
1. It becomes component output when pressing [DIGITAL EFFECT]
(5C) key of the remote control unit.
2. It becomes composite output when pressing [STILL WITH
SOUND] (5B) key of the remote control unit.
(18) Tilt Down
A manual moves in the going down direction when [SKIP REV]
(53) key of the remote control unit is pressed during the play at the
time of tilt off.
7
Page 74
2.4 EXPANSION FUNCTION 1
Set the reception mode of expansion function by pressing [TEST]
(5E) key of the test mode remote control unit, then expansion function
is able to execute by pressing the key of [0] to [9].
Indication for the most significant digit becomes "T" during the
reception mode of expansion function. (This mode can on and off
with toggle.)
(1) LD On
Turn the laser diode to on by pressing [TEST] and [1] keys in order.
(2) Focus On
Focus locks by pressing [TEST] and [2] keys in order.
2.5 EXPANSION FUNCTION 2
Set the reception mode of expansion function 2 by pressing [HILITE/
INTRO] (55) key of the remote control unit, then expansion function
2 is able to execute by pressing the key of [0] to [9].
(1) Forced DVD Setting
In the checker mode, set up the condition that DVD is attached
forcibly except for the result of disc distinction by pressing [HILITE/
INTRO] and [1] keys in order.
In the no checker mode (normal test mode), once execute the setting
but abandon it soon.
Therefore, perform the disc distinction again for the safety when
rising up the player in this condition.
(3) Focus Sweep
Repeat focus sweep by pressing [TEST] and [3] keys in order.
(4) Spindle FG Servo
Rising up the spindle and FG servo becomes on by pressing [TEST]
and [5] keys in order.
(5) AGC On/Off
Switch the AGC on and off with toggle by pressing [TEST] and [7]
keys in order.
(6) Jitter Value Indication.
It becomes the jitter-value indication mode by pressing [TEST] and
[DIG/ANA] keys in order.
(7) DSP coefficient indication of FTS system.
Set up the address (four digits) of the coefficient that it wants to see
by the point of search address input, then real time indicates the
coefficient in OSD by pressing [TEST] and [9] keys in order.
(8) CD Error Rate Indication
Indicate the value in OSD after measuring is completed by pressing
[TEST] and [0] keys in order after set up the measuring time (1 to 8
seconds) by the point of search address input.
(2) Forced CD Setting
In the checker mode, set up the condition that CD is attached forcibly
except for the result of disc distinction by pressing [HILITE/INTRO]
and [3] keys in order.
In the no checker mode (normal test mode), once execute the setting
but abandon it soon.
Therefore, perform the disc distinction again for the safety when
rising up the player in this condition.
(3) Execute The Disk Distinction
In the checker mode, execute the disc distinction result by pressing
[HILITE/INTRO] and [0] keys in order.
2.6 List of Test Mode Function
Contents of CommandCondition
OpenSTOPREPEAT AA8-48
CloseOPENREPEAT AA8-48
StopPLAYREPEAT BA8-44
Play (DVD is only tracing.)STOPTV/LDPA8-0F
Play (DVD is with decode.)STOPPLAYA8-17
Pause onPLAYCXA8-0E
Pause on/offPLAY/PAUSEPAUSEA8-18
Search address input (0 to 9)0 to 9A8-00 to 09
∗Use for other numerical value input
8
Key Name ofMode of
Remote Control UnitRemote Control Unit
Page 75
Contents of CommandCondition
Search address input (A to F)During address inputPGM+1 to 6
Screen indication on/Switching of the first screen and second screenOSD Off/OnDISPLAYA8-43
Screen indication offOSD : OnAUDIOA8-1E
Screen indication on/offPROGRAMA8-4C
Switching of ID display methods (decimal/hexadecimal)DIG/ANAA8-0C
DISC type designationSTOPHILITE/INTROA8-5A
• Forced designation to DVD+1 +A8-01
• Forced designation to CD+3 +A8-03
• Request for Disk sensing+0 +A8-00
Tray close of disk sense inhibitionChecker modeREPEAT AA8-48
Background color (eight colors) switching2/RA8-49
Background color (eight colors) switching (reverse toggle)1/LA8-4B
Video : component outputDIGITAL EFFECTA8-5C
Video : composite outputSTILL WITH SOUNDA8-5B
Key Name ofMode of
Remote Control UnitRemote Control Unit
Shuttle REVA8-2C to 2F
Shuttle FWDA8-28 to 2B
SKIP FWDA8-52
9
Page 76
Special Mention Item
(1) Indications for the spindle status are as follows:
(2) The movement of loading in/out starts from the tray open status.
After that, this function is executed unless a play and close
operation are done.
(4) If you turn the power on while short-circuiting the short-circuit
terminal at the side of the system controller, the player will
forcibly enter the test mode. If the FL controller is set to Checker
mode, disc sensing will not be started, even if a disc is loaded.
Disc sensing will also not be performed if the tray is opend/
closed by your pressing [REPEAT A] key while in Checker
mode.
However, disc sensing will be started if the [OPEN/CLOSE]
key on the player or on the remote control unit is pressed.
(3) There are three methods for entering a search address:
Absolute address designation
→ Searching for the address entered (indication for the most
significant digit :>)
Additional input
→ Searching for the address with the current ID number plus
an entered number
(indication for the most significant digit :+)
Subtractive input
→ Searching for the address with the current ID number minus
an entered number(indication for the most significant digit :–)
The above modes can be changed by pressing [10] key.
Note : A number for addition or subtraction must be entered in
hexadecimal.
(5) If disc-type designation is forcibly executed during a mode other
than Checker mode, the system controller will abandon disctype designation after setting the mechanism controller.
Therefore, after startup of the player, disc sensing will be
performed again for safety.
If disc-type designation is forcibly executed during Checker
mode, as disc-type designation is not abandoned, playback will
be immediately started.
(6) A background color change in order of blue → green → light
blue → red → purple → yellow → gray → black → with the [2/
R] key.
It changes in order of gray → yellow → purple → red → light
blue → green → blue → black → in the case of the [1/L] key.
(7) In case of PD0260A∗, tilt servo on function may not move with
DVD.
2.7 Test Mode Screen Display (The Second Generation)
Consecutive double-OSD display is supported during test mode. The screen is composed 10 lines with a maximum of 32 characters per line.
It can't be used with the debugging display mode together.
• Screen Composition
Character in bold : Item name
: Information display
Address
Tilt error value, Tilt servo status
Tracking status
Spindle status
AGC setting
FTS servo IC information
Remote control code
Key code
Mechanical position value
Slider position
Output video system
AV1 classification and
Flash ROM size
FL controller version
Region setting for the player
C1 error value of CD and DVD
Internal operation mode of
the mechanism control
Disc judgment
Pickup
Caution :
The first screen and second screen switch by
pressing [DISPLAY] key of the remote control
unit.
It is only a version display part on the lower
right of the screen those contents of display
change.
ATB : ON/OFF information display and AGC
manual establishment display deleted with the
second generation.
10
Flash ROM version
System controller revision
DVD mechanism controller revision
AV-1 chip version
First screen display
FL controller version
GUI-ROM number
Part No. of flash ROM and system controller
Part No. of DVD mechanism controller
Second screen display (at lower right portion of the screen)
Page 77
• Description of Each Item on the Display
(1) Address indication
The address being traced is displayed in number.
DVD: ID indication (hexadecimal number, 8 digits)
[∗∗∗∗∗∗∗∗]
CD: A-TIME (min. sec.)[
(Note : For DVDs, decimal-number indication is possible.)
(2) Code indication of the remote control unit [R-∗∗∗∗]
The code for the key pressed on the remote control unit, which is
received by the FL controller, is displayed while the key is pressed.
In the case of the double code, the second code will be displayed.
∗∗∗∗]
(11) FTS servo IC information
Indications for the following two types of information can be
switched:
DSP coefficient indication[KS-[∗∗∗∗] ∗∗∗∗]
Displays the address (four digits) of the specified coefficient
and the setting value (four digits) with [TEST] and [9] keys.
Jitter value indication[JT-[]∗∗∗∗]
Displays the jitter value (four digits) with [TEST] and [DIG/
ANA] keys.
(12) Error rate indication
C1 error value of CD[ER-C1 ∗∗∗∗ ]
C1 error value of DVD[ER-∗∗∗∗∗∗∗∗]
(3) Key code indication for the main unit [K-∗∗]
The code for the key pressed on the main unit, which is received by
the system controller, is displayed while the key is pressed.
(4) Tilt error value, Tilt servo status [TILT-∗:∗∗∗]
Tilt error value :[0] to [F]
Tilt servo status :
Tilt neutral[N]
Tilt servo on[ON]
Tilt servo off[OFF]
CD TOC area[IN ]
CD active area[CD ]
Side B inside[B IN]
(9) AGC setting [AGC-∗∗]
AGC on[ON]
AGC off[OFF]
(13) Internal operation mode of mechanism controller
[MM-∗∗:∗∗]
Internal mechanism mode (2 digits) and internal mechanism step (2
digits) of the mechanism controller
Note : For details, see the specifications of the mechanism controller.
(14) Disk sensing [DSC-∗∗∗]
The type of discs loaded is displayed.
[DVD], [CD ], [VCD], [ ]
(15) Pickup [PU-∗∗∗]
The pickup being operating is displayed.
DVD[DVD]
(16) Destination setting of the FL controller
[F:∗∗∗/∗∗∗]
Three characters in front represent the type of model:
505: DV-P2E
Three characters that follow represent the destination code.
WY: /WY
(17) Region setting of the player [REG:∗]
Setting value [1] to [6]
(18) Version of the flash ROM [V:∗.∗∗]
(19) Revision of the system controller [S:∗.∗∗∗/∗.∗∗]
Revision number of the external ROM part (flash ROM) of the
system controller<Front>
Revision of the internal ROM part of the system controller
<Rear>
(10) Output video system [V-∗∗∗∗]
NTSC system[NTSC]
PAL system[PAL ]
Auto-setting[AUTO]
11
Page 78
(20) Revision of the DVD mechanism controller
[M:∗.∗∗∗/∗.∗∗∗]
Revision number of the external ROM part (flash ROM) of the
DVD mechanism controller<Front>
Revision of the internal ROM (core part) of the DVD mechanism
controller<Rear>
(21) Version of the AV-1 chip [AV:∗.∗]
(22) Version of the FL controller [F:∗.∗]
Using the Function in Test Mode (The Remote
Control Keys to be Used are Indicated in Brackets)
(1) Set the CD to trace (playback) state.
(2) Set the player to Number input mode by pressing [+10] and
enter the measurement time in a range of 1 to 5 (sec.).
(3) Start measurement by pressing [TEST] + [0]. The SubQ counter
stops during measurement, but this is not a malfunction. When
the specified measurement time has elapsed, the result is
indicated to the right of “ER C1 –” on the screen.
If you skip step 2, the measurement time is set to 5 (sec).
The error rate of CDs can be measured and the value is displayed in
decimal and indicates the number of C1 errors (including the
corrected ones) counted during the specified measurement time.
An indeterminate measurement result may be caused by a dirty disc,
decentering, surface deflection, birefringence (double reflection),
or a pickup problem (dirty lens, etc.), misadjustments of the pickup,
improper automatic adjustment, or incomplete adjustments. On the
manufacturing line, the value is used for yes/no decision of pickups.
Normally, for a measurement for 5 seconds, the value may be less
than 10 with a clean disc and less than 100 with a disc with some
damage.
2.8.2 Jitter Value
Overview
The jitter values of DVDs and CDs, which show a voltage in threedigit decimal as
“0278” means 2.78 V. The larger the value, the worse the jitter.
The worst value is 3.25 V. When playing a DVD or a video CD
with which the jitter value is extremely high, mosaics may be seen.
As with the error rate, the jitter depends on the disc and pickup.
The jitter value to be displayed has no close correlation with a jitter
measuring device, and is to be regarded just for reference.
Reference :When the jitter value is 2.9 V or more with a DVD, or
Using the Function in Test Mode (The Remote
Control Keys to be Used are Indicated in Brackets)
(1) Set the DVD or CD to trace (playback) state with AGC OFF.
(2) Press [TEST] and [DIGITAL/ANALOG].
The current jitter value appears to the right of “JT:” on
the display. The jitter value keeps changing unless any additional
key operation is made.
Note : Although a value may be displayed on the screen even with
AGC ON,
The jitter value with AFB ON cannot be displayed (see the
next section). The jitter value with AFB ON can be obtained
only by directly measuring the voltage at the JV connector
(pin 94) of the servo DSP (LC78650).
. V, can be displayed. For example, the indication
3.0 V or more with a CD (or a video CD), it may cause
a problem (mosaic, audio distortion, etc.) in playback.
this is NOT a jitter value.
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2.8.3 Startup Sequence
The basic flow is shown below.
(1) Closes the tray.
(2) Detects the peak.
(3) Distinguishes the disc.
(4) SGC
(5) Turns on the focus servo.
(6) Starts the spindle rotation.
(7) ATB
(8) Measures the MIRR modulation degree.
(9) Turns on the tracking servo.
(10) Turns on the slider servo.
(11) Turns on the spindle servo.
(12) Focus AGC
(13) Tracking AGC
(14) AFB
(15) Plays AGC (for CDs)
(16) Plays back.
Using the Function in Test Mode
This function is not assigned to any remote control keys. Only an
open/close operation can trigger the function.
2.8.6 SGC
Overview
This is a new function to maintain the sine wave related to focus
errors to a certain size so that the sine wave shows 1.8 V for the Pto-P value.
This operation is performed each time after judging disc presence
and distinction in the normal startup process and in Test mode, as
well. The operation is achieved by switching the FE gain inside the
RF IC (LA9700) by using the voltage at the SGC connector (pin 22)
of the RF IC.
Using the Function in Test Mode
This function is not assigned to any remote control keys. Only an
open/close operation can trigger the function.
∗ For a 2-layer DVD, steps (7) through (14 ) are repeated for each
layer.
∗ When starting up with [TV/LDP] in Test mode, all the steps (1)
to (16) are performed for a DVD, and steps (1) to (8) are performed
for a CD.
2.8.4 Peak Detection
Overview
This is a new function to measure the size and location of the sine
wave related to focus errors at the beginning. The measurement is
performed in the normal startup process and in Test mode, as well.
If the sine wave is small, the OE IC gain is switched. Only the
judgment for NO DISC is accomplished at this time. The operation
is in effect as for judgment for DISC .
Using the Function in Test Mode
This function is not assigned to any remote control keys. Only an
open/close operation can trigger the function.
2.8.5 Disc Distinction
Overview
This function is almost the same as that with the first-generation
models. The only difference is as follows: If an error occurs in the
startup sequence and playback cannot be started, startup is retried
after forcibly switching the disc distinction from DVD to CD or
vice verse by a backup process. If startup fails again, it is canceled,
and an error is generated. The types of error that triggers the backup
process for disc distinction are discussed in the next section.
2.8.7 Measurement of MIRR Modulation
Degree
Overview
The slice voltage of the RF signal is measured and used in the
calculation to generate the MIRR signal. This operation is made in
synchronization with ATB ON/OFF in normal startup and in Test
mode, as well.
2.8.8 AFB (Auto Focus Bias) Function
Overview
This function supports DVDs as well as CDs. The operation is
executed only once (once for each layer for a 2-layer DVD) after
the focus and tracking AGC at startup. The operation is accomplished
not by centering the focus servo to Vref (2.5 V), but by gradually
changing the center value for the optimum jitter value. Thus,
performance with an improper or dirty disc (by fingerprints, etc.),
or the temperature characteristics (at 0°C, 35°C, etc.) will be
improved.
OverviewUsing the Function in Test mode
(the Remote Control Keys to be Used are
Indicated in Brackets)
As the function is to be synchronized with AGC, turn on and off
AFB by pressing [TEST] + [7]. The jitter value measurement cannot
be made with AFB ON.
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2.8.9 PLAY AGC
Overview
The SGC voltage is adjusted during playback according to the RF
signal level. (For details on SGC, see section 2.8.6.)
Only for CDs, this adjustment is made only once immediately after
AFB during startup. In Test mode, it synchronizes with AGC ON/
OFF. The operation is achieved through adjustment in the Servo
DSP (LC78650), and the SGC voltage is output via AUX0 (pin 44).
Using the Function in Test Mode
(the Remote Control Keys to be Used are Indicated
in Brackets)
As the function is to be synchronized with AGC, turn on and off
AFB by pressing [TEST] + [7].
2.9 Additional Descriptions of Error
Generation
This section describes the major errors of the mechanism-control
computer.
(1) DISC Distinction Error (Error 38)
The most common error. The tracking overcurrent error (Error c3),
Defocus error (Error 33), spindle errors (Errors 41 to 4b), auto
sequence errors (Errors 51 to 55) and code misread errors (71 to 74)
often lead to this error.
(2) Search Errors (Errors 11, 12, 19)
Almost all cases where playback suddenly stops may involve these
errors. They may be generated because of defects on the disc . As
with the code misread errors below, they can also be generated by a
dirty disc or bad jitters.
(5) Automatic Sequence Errors (Errors 51 to 55)
If any automatic sequence (auto execution command) of the servo
DSP is not completed, these errors are generated. The causes differ
among error numbers. They may be caused by abnormalities in the
communication line between the mechanism-control computer
(PD4889A) and the servo DSP or instability of the XABUSY
connector (pin 38) of the mechanism-control computer.
(6) DSP Communication Errors (Errors a1 to a6)
These errors will be generated if the mechanism-control computer
cannot properly communicate with the servo DSP. They may be
caused by instability of the XCBUSY connector (pin 8) of the
mechanism-control computer, instability of the communication line
between the mechanism-control computer and the servo DSP, or a
defect in the servo DSP.
(7) DVD Block Noise, etc.
Block noise and momentary picture freeze (∗) with a DVD are not
regarded as errors, but the causes of these symptoms in the Servo
system may be:
(1) A search takes a long time (leading to a search error if it worsens).
(2) Codes cannot be read clearly (leading to a code misread error if
it worsens).
If the value to the right in the “ER:
on the screen by pressing the ESC and DISP keys of the remote
control in Test mode is greater than 5, the cause may be (1). If
the value is less then 3, the cause may be (2).
(∗) With a specific 2-layer disc with which playback continues from
layer 1 to 2 or vice versa, the picture may be seen momentarily
stop. This may be attributed to the performance of the player.
Players of other manufacturers have the same symptoms to
varying degrees.
: e–” indication displayed
(3) Code Misread Errors (Errors 71 to 74)
Almost all cases where the inserted disc does not start or immediately
stops playing may involve these errors. They may be generated
because of a dirty disc or bad jitters. A bad jitter may be caused by
a dirty disc, decentering, surface deflection, birefringence (double
reflection), or a pickup problem (dirty lens, etc.), misadjustments of
the pickup, improper automatic adjustment, or incomplete
adjustments.
(4) Spindle Errors (Errors 48, 49)
An FG transition timeout (Error 48) may be generated because of
instability of the FG signal or unavailability of spindle drive voltage.
A PLL transition timeout (Error 49) can be generated with a dirty
disc.
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3. IC INFORMATION
• The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.