Pioneer SC430, Service Manual

Page: 78 / 98

78
FX-MG8156ZT,MG8156ZT-91,MG8317ZT,MG8317ZT-91
[MSG]
Power Off
[5]
Focus Close/S-curve/
F. EQ Measurement
[TYPE]
Focus Mode Select
[3]
Tracking Servo
Close
[MSG]
Power ON
(T.OFFSET adjustment required)
00 00
[5]
Power ON
(T.OFFSET adjustment not required)
[3]
Mechanism Test Mode
Initial State
[TYPE]
New Test Mode
[MSG]
Power Off
[3]
Tracking Close
(AGC, Applicable Servo)
[TYPE]
Tracking Close
(No AGC, Applicable Servo)
[5]
Auto Adjustment Display
/Rough Servo
[4]
Tracking Balance
Adjustment
[5]
AGC
[TYPE]
CRG/TR Jump Count
Select
[SEEK UP]
CRG+/TR Jump+
[SEEK DOWN]
CRG–/TR Jump–
[6]
SPINDLE
Uniform/
Double Switching
[MSG]
Power Off
[3]
AGC/F.BIAS
Display Switching
or
[SEEK UP]
CRG+
[SEEK DOWN]
CRG-
[SEEK UP]
CRG+
[SEEK DOWN]
CRG-
[4]
Trackig Open
[4]
Trackig Open
*1
*6
*5
*3
*2
*2
*4
*1) Switching must take place in the following sequence.
MIN SEC
00
00
( ) MIN SEC
99
99
S.Curve Check
MIN SEC
01 01
Focus EQ Measurement. Focus Close
MIN SEC
02 02
*2)
→ → → → →
9X(8X):91(81)
4 TR
92(82)
10 TR
93(83)
32 TR
94(84)
100 TR
95(85)
CRG Move
96(86)
*4)
→ → →
F.AGC Gain T.AGC Gain F. BIAS Setting
(AGC Gain = (Current value/Initial value) x 20)
→ → →
→ →
Single TR /4TR / 10TR / 32TR / 100TR
Single TR
*3) Switching must take place in the following sequence.
It applies to the CRG Move and 100TR Jump alone.
Min/Sec (or Track No.)
*5) Switching must take place in the following sequence.
F.Cancel Display
*6) Switching must take place in the following sequence.
T.Offset Display T.Bal Display Rough Servo.
(F.Bias value, F.Cancel value, T.Offset value, T.Bal value
= (Upper 8 bits of the setting (7F[H] to 80[H] + 128)/4
= 63[D] to 32[D] to 00[D]).
[Key]
[MSG]
[SEEK UP]
[SEEK DOWN]
[3]
[4]
[5]
[6]
[TYPE]
[2]
Operation
Test Mode
New Test Mode
Power ON/OFF
CRG+/TR Jump+
(Toward the outer tracks)
Tracking Close/AGC gain,
F.Bias adjustment value display selection
Auto Tracking Balance adjustment/
Tracking Open
Focus Close, S.Curve, F.EQ measurement/
Rough Servo/AGC
Focus Open
Focus Mode select/Tracking Close/
CRG•TR Jump selection
CRG-/TR Jump-
(Toward the inner tracks)
Error occurrence time/
Cause display selection
Track+/FF
Track-/REV
Mode
RAMDOM
Auto/Manual selection
DISC UP
DISC UP
[EJECT]
[LOAD]
DISC Eject
DISC Eject
DISC Load
DISC Load
Source CD
Test Mode In
[DISC]
TRK MIN SEC
[SEEK UP] + [AM]
[Key]
Contents
Display
Diag. Mode In
[1] + [6] + [DISC] 3 times
PBUS TEST
Diag. off
[DISC] 3sec
TRK MIN SEC
00
99 99
TRK MIN SEC
99 72 0*
TRK MIN SEC
**
TRK MIN SEC
91 91
TRK MIN SEC
91 0X 0X
TRK MIN SEC
0X
00 00
TRK MIN
SEC
00
99 99
TRK MIN SEC
99
or
00 00
TRK MIN SEC
00
99 99
TRK MIN SEC
99
or
00 00
TRK MIN SEC
00
99 99
TRK MIN SEC
99
TRK MIN SEC
*7
*7
XX XX
TRK MIN SEC
XX
XX XX
TRK MIN
SEC
XX
?? ??
TRK MIN SEC
??
or
8X 8X
TRK MIN SEC
8X
9X 9X
TRK MIN SEC
9X
or
8X 8X
TRK MIN SEC
8X
9X 9X
TRK MIN SEC
9X
8X 8X
TRK MIN
SEC
8X
TRK MIN
SEC
?? ??
TRK MIN
SEC
?? XX XX
TRK MIN
SEC
XX
XX XX
TRK MIN SEC
XX XX XX
TRK MIN SEC
XX
XX
TRK MIN
SEC
XX
or
8X 8X
TRK MIN SEC
8X
9X 9X
TRK MIN
SEC
9X
XX XX
TRK MIN SEC
XX
or
8X 8X
TRK MIN SEC
8X
9X 9X
TRK MIN SEC
9X
[MSG]
Power Off
TRK MIN SEC
[1]
DISC DOWN
DISC DOWN
B0H
B1H
B2H
B3H
B4H
B5H
B6H
B8H
A8H
A9H
D1-D6
61-66
*7) No sound is reproduced even if Tracking Closes, because the
STS IC is not controlled during the test mode.
•
•
•
For all TR jumps (except for 100TR jump), the track jump operation continues even after the key is
released. For the CRG Move and 100TR jump, the tracking closes at the same time when the key is released.
With the Power Off/On, the Jump Mode is reset to the Single TR(91).
To exit from the test mode, reset the unit. (All modes are completely reset about 2 minutes after the Power is turned off.)
Note: • If [SEEK UP] or [SEEK DOWN] key is pressed during Focus search, turn off the power
immediately to prevent the actuator's damage caused by the lens stuck.
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CD Player Flow Chart