10-7
10-7
+
-
VDD
2x
4x
1x
V/I
V/I
Vgap
D3 (CD10)
D4 (CD10)
SLIDE
R2 (CD10)
3DTC-mainboard
DISC
_
D5
+
D2
D3
D4
D3
D2
D4
HF-Amplifier & Laser power control
ESD sensitive line!
ESD sensitive line!
TRACK
FOCUS
+
+
_
D5
to 7800/pin63
T+
F+
INNERSW.
FOCUS
D1 (CD10)
+
FOCUS
+
CD Drive
+
VCC
D3
_
D4
D2
LD
GND
TRA
CK
R1 (CD10)
D3
Motor Driver
MON
D2 (CD10)
D5
GND
D4
TRACK
part 1
DISC
_
_
VREF
F-
SLIDE
Servo Driver
T-
_
D1
D1
180p
D1
DISC
D2
SLIDE
2821
3836
4K7
3835
4K7
3851
2K7
220p
2816
TDA7073A
7802
2R2
3887
2843
4u7
1K
3855
2865
47n
2856
270p
4K7
3890
+5V
220p
2813
2863
47u
220p
2810
3891
10n
2862
100K
10K
3808
+5V
3879
6K8
10K
4K7
3833
3871
4K7
3884
2839
4u7
10K
3818
18K
3817
3877
33K
10K
3810
10K
3813
3809
22K
3807
22K
2822
220p
3846
4K7
PDZ-3.3B
6812
2834
47n
2836
4n7
3821
10K
0u47
2864
3885
100K
47K
3878
100n
2861
180p
2815
3820
56K
56K
3831
2832
1n5
2855
2n2
2846
68R
3829
4R7
3862
220p
2812
180p
2828
100R
3864
3870
470p
47K
LD
1
MON
4
PWRON
LDON
from part2 7800/pin64
7
10
RFEQO
RFFB 9
RGADJ 14
VCC2
13
VCCL
2
2814
TZA1024/TZA1025
7801
CDRW
11
CFIL
3
CMFB 8
DIN
5
EQSEL
12
GND
6
2811
330p
3859
+10V
4R7
12
1
2
5
3,4,8
7803
TDA7073A
14,15
10,11
6
7
16
13
9
3892
82K
10
11
12
13
14
15
2
3
4
5
6
7
8
9
+3.3V
FO
1800
FMZ-ST
1
4u7
2830
2829
220p
10n
2859
270p
2848
3861
15K
3856
10K
3882
100K
3869
33K
2R2
3888
RA
M2
M1
SL
2R2
3873
2851
47u
+10V
2R2
3899
68R
3830
PH-S
1801
6
5
4
3
2
1
EQSEL
from par
t3 7814/pin11
R
W
/D
A
from par
t2 7800/pin61
Innersw
VrefCD10
Vref
Vref
Vref
+
-
+
-
VDD
12
1
2
5
3,4,8
14,15
10,11
6
7
16
13
9
+
-
T
O
SER
V
OPOCESSOR
7800 on P
A
R
T
2
FR
OM SIGNALPOCESSOR
7800 on P
A
R
T
2
Σ
(D2-D4) = Audio signal
VrefCD10
7806
BC847B
3811
82K
3812
10K
5V
1.9V
1.6V
4.7V
5V
4.7V
5V
1.6V
1.6V
1.6V
1.6V
10V
10V
0.3V
5.1V
0.3V
4.9V
4.6V
1.6V
1.6V
4.8V
1V
0V
0.8V
4.7V
0.2V
0.9V
1.6V
1.7V
2.9V
2.1V
3.0V
U >400mV
->Laser damaged !
Focus search
Service step 2
2V
+
-
1s
3V
0V
0V
A
B
3V
0V
3V
0V
CD_R
W = 3V / CD_D
A = 0V
3DTC Mainboard Sheet1 2001-02-01 (non CDR Version)
TB = 0.5
µ
s/div
800mVpp
EYE-PATTERN
to 7800 on part 2
HF
1
2
3
4
5
6
7
8
9
10
7
8
9
10
A
B
C
D
E
E
F
G
H
I
I
1
2
3
4
5
6
F
G
H
A
B
C
D
. . . V DC voltages measured in
PLAY MODE
with following conditions:
"+10V" = 10V
"+5V" = 5V
EVM
V
3872
1K
3876
1K
2852
47n
Vref
+3servo
2860
47u
+3,3V
+5V
+3,3V
+5V
+10V
+10V
33R
3886
from par
t 2
5V
5V
10V
10V
VrefCD10
VrefCD10
1.6V
1.6V
3,3V
3,3V
3,2V
1,6V
1800
C1
1801
I1
2810
A5
2811
A4
2812
A4
2813
A5
2814
B4
2815
A4
2816
B5
2821
B4
2822
B5
2828
C4
2829
C5
2830
C2
2832
D5
2834
E4
2836
D6
2839
E8
2843
E5
2846
F4
2848
F5
2851
F4
2852
B8
2855
G4
2856
G5
2859
H5
2860
B9
2861
H4
2862
H5
2863
H4
2864
I4
2865
I5
3807
A3
3808
A4
3809
A3
3810
A4
3813
A4
3817
B4
3818
B4
3820
B4
3821
B4
3829
C2
3830
C2
3831
B4
3833
B4
3835
D4
3836
C4
3846
F8
3851
C4
3855
D8
3856
D8
3859
E4
3861
D4
3862
E5
3864
E8
3869
F5
3870
F6
3871
F5
3872
B9
3873
F4
3876
B9
3877
G5
3878
G6
3879
G5
3882
H5
3884
H5
3885
H6
3886
A10
3887
H4
3888
H5
3890
I5
3891
I6
3892
I5
3899
F5
6812
F8
7801
D6
7802
G3
7803
I3
220n
VAM2201
Содержание MC-77
Страница 10: ...2 6 Technical Remarks ...
Страница 15: ...4 1 4 1 SET BLOCK DIAGRAM MC 77 dd wk0210 DIGITAL AMP 6Ω 70W ...
Страница 42: ...9 10 Technical Remarks ...
Страница 45: ...10 3 WIRING Module WIRING CD Drive ...