Pioneer DEH-P900R9050 Service Manual page 55

- Flow Chart
4
Sourse CD
Power ON
(Adjustment for T.Offset)
TRK MIN SEC
00 00 00
Display
Power OFF
BAND
Focus Close/
S Curve Check
TRK MIN SEC
91 91 91
Display
Power OFF
BAND
T.Close and
F,T AGC and
RF AGC and
Fit Servo
Power OFF
BAND
F, T, RF AGC/
F.Bias Display Select
Power OFF
BAND
TYP +6dB
*1
Display 06 06 06
Focus Close
*2
Display
00 00 00
(99 99 99)
*3 F.Offset Display
F.Cancel Value = {Top Rank 8bit of Set Value (7F [H] to 80 [H] ) + 128} / 4
= 63 [D] to (32 [D] ) to 00 [D]
*4 Single TR/32TR/100TR
*5 Single TR
Display 9x(8x):91(81)
*6 CRG Move, 100TR Jump Only
*7 TRK, MIN, SEC
(F,T.AGC Gain = (Present Value/Initial Value) ¥ 20)
*8 Voltage of CRG Motor = 2 [V]
6
Test Mode In
Reset
SOURCE
BAND
3
Power ON
(Not adjustment for T.Offset)
TRK MIN SEC
99 99 99
Display
3 6
*2
Focus Mode
Select
<Tracking Servo Close>
TRK MIN SEC
0x 0x 0x
Display
1 6
T. Close and
RF AGC Coefficient Display/
Fit Servo
Rough Servo and RF AGC
1 3
*7
F, T AGC and
RF AGC
+12dB
12 12 12
S Curve Check
01 01 01
RF.Offset Display F.Cansel Display
32TRK 100TRK CRG Move
92(82) 93(83) 94(84)
F.AGC Gain T.AGC Gain RF AGC Gain
2
*1
RF AMP Gain Select
TRK MIN SEC
GG GG GG
]
1
*8
CRG+
TRK MIN SEC TRK MIN SEC
00 00 00 00 00 00
or or
TRK MIN SEC TRK MIN SEC
99 99 99 99 99 99
]
3
CRG+
TRK MIN SEC
8x 8x 8x
Display
or
TRK MIN SEC
9x 9x 9x
6 ]
*5 *4
CRG-/TR Jump-
CRG/TR Jump NO. CRG+/TR Jump+
Select
Display
DEH-P900R,P9050
New test mode
6
[
2
*8 *3
Auto Adjustment
CRG-
Display Select
TRK MIN SEC
00 00 00
or
TRK MIN SEC
99 99 99
[
2
T.Balance
CRG-
Adjustment
TRK MIN SEC
8x 8x 8x
or
TRK MIN SEC
9x 9x 9x
Tracking
Open
[
2
*4
*6
TRK MIN SEC
8x 8x 8x
Display
or
2 TRK MIN SEC
9x 9x 9x
Tracking
Open
TRK MIN SEC
8x 8x 8x
or
TRK MIN SEC
9x 9x 9x
55