Pioneer CRT3452 Service Manual page 80

1
-
Outline
[Stage 4] is used for measuring a servo system. (Tracking close)
A
-
Operation Flow of [Stage 4]
Stage 4 Tracking Close Mode
Return to Return to
Stage 1. Stage 2.
40020000 40050000
B
Test Start Servo
10940000 Initialization
20060000
To Stage 2
Test Start
-
Execution of Test Execution
•
Tracking servo system measurement/Go to the next stage: Execute [40280000] and [40140000] in this order.
C
-
Contents of Test
Command Test name
number
40020000 Return to Stage 1
40050000 Return to Stage 2
40130000 S curve mode OFF Turns off the S curve confirmation
40140000 Tracking close
40280000 TB automatic
adjustment
D
40100000 Carriage move to
outer circumference. circumference.
40110000 Carriage move to
inner circumference circumference.
40160000 Disc type
confirmation
40240000 Automatic
adjustment value
display
E
↓
40040000 Replayed status
display
F
80
1
2
Stage 4
∗∗ Be sure to execute the [40800000] TB
(tracking balance) automatic adjustment.
[40140000] may not be able to be executed
normally.
S Curve Tracking
Mode OFF Close
40130000 40140000
Disc Type
Confirmation
40160000
RF Automatic
Adjustment
50250000
To Stage 5
Test contents
Execute test contents: Press the DISC key. Selection switching: Pressing the
Return to command number display:
Re-press the DISC key.
Returns to Stage 1.
Returns to Stage 2.
mode.
Turns on the tracking servo.
Automatically executes a tracking
balance adjustment.
Moves the carriage to the outer
Moves the carriage to the inner
A disc type selected for
[disc type (2007000)] can be
checked.
Displays an automatic adjustment
result of a servo system.
Displays a replayed status.
XDV-M8357ZT/UC
2
3
From Stage 3
Focus Close
30080000
TB Automatic Carriage Move to
Adjustment Outer Circumference
40280000 40100000
Automatic Adjustment
Replayed
Value Display
Status Display
40240000
40040000
Test contents selection item setting Return value
TRACK UP/DOWN key
Toggle-selects an adjustment
value to be displayed.
Display at selection
"0"[40240XXX]
"1"[40241XXX]
"2"[40242XXX]
3
4
[40100000] and [40110000] move
while the execution key (DISC key) is
being pressed. Both are valid
when the tracking servo is OFF
(opens).
Carriage Move to
Inner Circumference
40110000
00000000
00000000
00006500
00000000
00000000
42100000
42110000
00000000(at CD selection)
00000001
(at DVD1 layer selection)
00000002
(at DVD2 layer selection)
00000003(Reserved)
Refer to the appended table.
00000000(at servo OFF)
01010101
(Servo intitialization state)
02020202(at focus servo ON)
ID No. (at DVD replay)
MSF No. (at CD replay)
4