10-7
10-7
5V
1.9V
1.6V
1V
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 s ep 2
2V
-
1s
CD
R
W = 3V / CD
D
A = 0V
3V
0V
3V
0V
3V
0V
3V
0V
. . . V DC voltages measured in
PLAY MODE
with following conditions:
"+10V" = 10V
"+5V" = 5V
EVM
V
1,6V
SPEEDSEL
from par
t3 7813/pin7
3CDC-LC Herman Mainboard Sheet1 2001-07-26 (CDR Version)
TB = 0.5
µ
s/div
800mVpp
EYE-PATTERN
1800
C1
1801
G1
2800
C4
2801
C5
2802
B4
2803
B5
2804
D6
2805
B5
2806
A5
2807
A4
2808
A5
2809
I5
2810
A4
2811
A5
2814
G5
2815
D5
2817
E5
2819
C2
2827
B4
2828
A13
2830
H6
2831
E4
2832
I6
2835
I5
2836
E8
2839
G5
2840
H5
2841
F6
2842
F5
2844
G6
2846
H5
2848
D9
2849
E11
2850
D14
2851
E9
2859
D12
2878
D10
2884
C11
2885
C9
2886
C9
2887
E12
3700
D11
3702
C9
3703
D13
3720
C10
3721
C10
3722
D12
3724
C11
3725
C11
3726
C11
3727
C12
3728
D9
3729
C12
3735
E11
3777
D10
3778
E10
3779
D10
3780
E10
3781
D13
3782
E12
3800
B4
3801
B4
3802
B4
3803
B4
3805
A4
3806
B4
3807
A4
3808
A4
3811
B4
3815
E5
3820
D4
3821
C4
3822
C4
3824
D8
3829
E4
3830
D4
3831
F8
3833
A3
3834
A3
3835
G5
3836
H6
3837
I5
3838
I5
3839
H6
3841
H5
3842
F6
3843
F6
3844
F5
3845
G6
3846
G6
3847
G5
3848
I6
3850
I5
3852
H5
3854
E8
3856
C2
3857
C2
3863
A13
3866
D8
3868
A4
3869
A4
3872
E5
3873
G2
3874
H2
7801
D6
7803
E3
7804
E8
7806
E5
7817
C10
7819
E11
7820
D11
7821
C12
7822
C13
7823
C13
7824
E10
BC847B
7804
SINGLE & DOUBLE Speed = 3V
Q
U
AD speed = 0V
DOUBLE Speed = 3V
QUAD Speed = 0V
QUAD Speed only
Single Speed
= 3V
Double Speed = 0V
Quad Speed
= 1,5V
100K
3831
for double speed versions
a wire bridge is stuffed instead of this circuitry
100n
2849
1u
2885
68p
2859
120p
2884
470p
2850
1n
2887
10n
2886
3720
5K6
3729
1K2
3721
22K
3725
330R
3700
47K
3735
22K
3702
68R
3724
2K7
3703
3K3
3722
3K9
3726
270R
3781
560R
3727
1K
to 7800 on part 2
HF
SPEEDSEL
from part3 7813/pin7
+10V
7817
BFS20
7821
BFS20
7823
BFS20
7822
BF550
7820
BC847B
7819
BC847B
3777
39K
3728
1K
3779
820R
3778
22K
3780
470R
7824
BFS20
3737
330K
3768
330K
100n
2848
3782
33K
blocked at Quad Speed
conductive at Double Speed
Signal flow Double Speed
Signal flow Quad Speed
HF-Amplifier
for quad speed versions only
SINGLE = 3V
DOUBLE Speed = 0V
3752
68R
3749
68R
2x
4x
1x
V/I
V/I
Vgap
D3 (CD10)
D4 (CD10)
R2 (CD10)
3CDC-LC
D5
D2
D3
D4
D3
D2
D4
HF-Amplifier & Laser power control
ESD sensitive line!
ESD sensitive line!
+
+
D5
to 7800/pin63
T+
F+
INNERSW.
FOCUS
D1 (CD10)
CD Drive
VCC
D3
D4
D2
LD
GND
TRA
CK
R1 (CD10)
D3
MON
D2 (CD10)
D5
GND
D4
part 1
DISC
_
_
VREF
F-
SLIDE
T-
D1
D1
180p
D1
D2
2802
3821
4K7
3820
4K7
3822
2K7
220p
2805
2817
4u7
1K
3824
+5V
220p
2806
220p
2811
10K
3808
+5V
10K
3801
2836
4u7
10K
3806
27K
3811
10K
3807
10K
3805
3834
22K
3833
22K
2803
220p
2831
47n
2804
4n7
3803
10K
180p
2810
3802
56K
56K
3800
2815
220n
68R
3856
4R7
3815
220p
2808
180p
2800
100R
3854
470p
LD
1
MON
4
PWRON
LDON
from part2 7800/pin64
7
10
RFEQO
RFFB
9
RGADJ
14
VCC2
13
VCCL
2
2827
TZA1024/TZA1025
7801
CDRW
11
CFIL
3
CMFB
8
DIN
5
EQSEL
12
GND
6
2807
330p
3829
4R7
10
11
12
13
14
15
2
3
4
5
6
7
8
9
+3.3V
1800
FMZ-ST
1
4u7
2819
2801
220p
3830
15K
3866
10K
68R
3857
PH-S
1801
6
5
4
3
2
1
R
W/D
A
from par
t2 7800/pin61
Innersw
VrefCD10
T
O SER
V
OPOCESSOR
7800 on P
AR
T2
FR
OM SIGNALPOCESSOR
7800 on P
AR
T2
Σ
(D2-D4) = Audio signal
VrefCD10
FO
RA
M1
SL
3848
100K
3850
18K
3838
10K
18p
2809
Vref
Vref
Vref IN
3839
47K
5
4
32
33
23
24
13
14
25
26
35
27
28
29
30
6 7 8 9 10 11 12
3841
27K
220n
2840
Vref
Vref
+10V
+3Servo
Vref
3836*
270K
+3.3V
3842
47K
3843
47K
3844
82K
220p
2842
220p
2841
Vref
Vref
3845
47K
3846
47K
3837
10K
LDON
3852
1K
17
3
34
1
2
19
21
22
15
20
16
3847
56K
270p
2814
220p
2844
Vref
Vref
Servo Driver
M63000
7803
Motor Driver
VCC
VCC
REG. Vref
36
18
NC
Standby
2839
47u
2846*
47u
DISC-
TRACK-
FOC-
FOC+
TRACK+
TRACK+
FOC-
FOC+
TRACK-
DISC+
SLIDE-
SLIDE+
DISC-
DISC+
SLIDE+
SLIDE-
31
REG
+
-
+
+
+
+
-
-
-
-
* marked components only forseen
+3servo
2828
47u
+3,3V
+5V
+3,3V
+5V
+10V
+10V
33R
3863
from par
t 2
5V
5V
10V
10V
VrefCD10
VrefCD10
1.6V
1.6V
3,3V
3,3V
3,2V
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
7
8
9
10
A
B
C
D
E
E
F
G
H
1
2
3
4
5
6
F
G
H
A
B
C
D
I
I
7806
BC847B
3794
82K
3872
4k7
EQSEL
from par
t2 7800/pin62
3835 +t
°
PTH8
6810
1N4003
3874 1R
3873
1R