Pioneer DEH-M8047ZT/UC Service Manual page 51

1
- Flow Chart
A
[Key]
Contents
Display
B
Power ON
(T.OFFSET adjustment required)
TRK
[1]
Power Off
TRK MIN SEC
C
[1]
Power Off Tracking Close
(AGC, Applicable Servo)
SEC TRK
TRK MIN
[1]
Power Off
TRK MIN SEC
D
[1]
Power Off
TRK MIN SEC
*1) →
TYP -6dB
TRK MIN SEC
TRK MIN SEC
06
06
*2) →
Focus Close
S.Curve Check
TRK MIN SEC
TRK MIN SEC
00 00 00
01 01
MIN SEC
)
(TRK
99
99
99
→
*3)
F.Offset Display RF Offset Display
E
( F.Cancel value
= (Upper 8 bits of the setting (7F[H] to 80[H] + 128)/4
= 63[D] to 32[D] to 00[D]).
*4) Single TR /4TR / 10TR / 32TR / 100TR
→ →
*5) Single TR 4 TR 10 TR
92(82) 93(83)
9X(8X):91(81)
*6) Only for the CRG Move and 100TR modes
→
*7) Track No. / Min / Sec
F.AGC Gain
(F.T. AGC Gain = (Current value/Initial value) x 20)
*8) CRG motor voltage : 2 [ V ]
*9)The first press displays the RF AGC coefficient. The second one or after performs the rough servo and RF AGC adjustments, and then displays the RF AGC coefficient.
In all TR Jump modes except for 100TR, track jump operation continues even after the key is released.
•
F
In the CRG Move and 100TR Jump modes, the tracking servo loop closes at the same time when the key is released.
When the power is turned off and on, the jump mode, the RF AMP gain
•
setting, and the auto adjustment values are reset to the Single TR (91),0dB, and the factory setting respectively.
Note: When you pressed the [TUNE UP] or [TUNE DOWN] key during the Focus Search, you must turn the power off immediately
(otherwise, the lens can stick resulting in actuator damages).
48
1
2
[1]+[6]+[DISC]3times
Diag Mode In
[DISC]+[TUNE UP]
Test Mode In
PBUS TEST
[DISC] 3sec
Diag off
[DISC]
Source CD
MIN SEC
TRK
[1] [4]
Power ON
(T.OFFSET adjustment not required)
SEC MIN SEC
MIN TRK
00 00 99 99
00
[6]
[4]
Focus Close/S-curve/ *2
Focus Mode Select
F, F0 Measurement
SEC SEC
TRK MIN TRK MIN
91 91 91 0x 0x 0x
[2] [6]
Tracking Close
(No AGC, Applicable Servo)
MIN SEC SEC
TRK MIN
xx xx xx xx xx
xx
[2] [4]
F,T,RF AGC F,T AGC and
*7
RF AGC
Display Switching
TRK MIN SEC TRK MIN SEC
?? ?? ?? xx xx xx
→
-12dB
TRK MIN SEC
06 12 12 12
→
LD Off
TRK MIN SEC
01 02 02 02
→ →
T.Bal Display Rough Servo.
→ → →
32 TR 100 TR CRG Move
96(86)
94(84) 95(85)
→ →
T.AGC Gain RF AGC Gain
2
3
[3]
RF AMP Gain Select *1
TRK MIN SEC
99 00 00 00
[2] [TUNE UP]
Tracking Servo
CRG+
Close
TRK MIN SEC TRK MIN SEC
00 00 00 00 00 00
or
or
SEC TRK MIN SEC
TRK MIN
99 99 99 99 99 99
[4] [TUNE UP]
Rough Servo and RF AGC/
CRG+
*9
RF AGC Factor Display
TRK MIN SEC TRK
?? ?? ??
or
TRK
[6] [TUNE UP]
*4
CRG/TR Jump Count
CRG+/TR Jump+
*5
Select
TRK MIN SEC TRK MIN SEC
xx xx xx xx xx xx
[Key] Operation
Test Mode
[1]
Power ON/OFF
CRG+/TR Jump+
[TUNE UP]
(Toward outer perimeter)
CRG-/TR Jump-
[TUNE DOWN]
(Toward inner perimeter)
[2] Tracking close and AGC and Applicable
servo / AGC , AGC display switching
RF gain select / Offset adjustment display/
[3]
Tracking balance adjustment / Tracking open
[4] Focus Close, S.Curve /
Rough Servo/ RF AGC / F,T, RF AGC
Focus mode select / Tracking close /
[6]
CRG . TR jump select
[TEXT] Focus open
[5]
Jump off
DEH-M8037ZT/UC
3
4
[TUNE DOWN]
Auto Adjustment Display
CRG-
Select
TRK MIN SEC
00 00 00 TRK MIN
or ?? ??
TRK MIN SEC
99 99 99
[TUNE DOWN]
Tracking Balance
CRG-
Adjustment
SEC SEC TRK
MIN TRK MIN
8x 8x 8x 8x 8x 8x
or
MIN SEC TRK MIN SEC
9x 9x 9x 9x 9x 9x
[TUNE DOWN]
[3]
*4
Trackig Open
CRG– /TR Jump–
TRK MIN SEC TRK MIN SEC
xx xx xx 8x 8x 8x
or
TRK MIN SEC
9x 9x 9x
*6
[3]
Trackig Open
TRK MIN SEC
8x 8x 8x
or
TRK MIN SEC
9x 9x 9x
4
[3]
*3
SEC
??
[3]
MIN SEC
8x 8x 8x