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Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
Schaltbild Servo-Teil
Circuit Diagram Servo Part
1
2
3
4
5
SERVO PART
A
2902
Photodiode-array
10n
3905
3903
D1
D2
0R05
120k
R1
R2
B
D3
1800
10FM1.0BT
Laser
1
T801
+3.5
12
Monitor
2
T802
Vref
3
T803
+REF
C
4
T804
+
+Vreverse
5
T805
R2
R2
BC848
T806
D1
6
7901
3901
D1
12k%
7
T807
D
D2
L
DA
L
D2
8
T808
R1
R1
9
T809
D3
L
D3
10
T810
E
L
F
Supply voltages
Explanation of abbreviations:
+A .....battery or ext. DC
% ......Tolerance of resistor is only 2%
+S .....switched +A
+uP ....3.5V (switched by low supply voltage
DC VOLTAGES MEASURED IN
shut-off circuit)
G
PLAY MODE - 1kHz 0dB LEVEL
+3.5 ...stabilized voltage of DC/DC converter
(SUPPLIED BY MAINS ADAPTOR)
EVM
+1.2 ...Referenze-voltage (only if power on)
V
+6 .....ext. DC
H
I
+A
J
SD
K
+3.5V DC/DC Converter
L
+3.5
3,6V
M
N
Supply: +3,5
1
2
3
4
5
2 - 3
6
7
8
9
10
+3.5
eye-pattern
HF Amplifier
C
LS
0V
13
12
Adj
HG
14
11
Vg
Vrf
15
10
1
L
Lo
Vrfe
Hf
1V
16
9
H = Laser on
Mi
Vddl
2,5V
17
8
Vdd
3,5V
18
LDon
7
3,6V
3805
I2
O2
19
6
L
I5
O5
0V
R2
20
5
3806
3807
I1
O1
0V
D1
21
4
10k
3808
10k
I3
O3
0V
D2
22
3
I6
O6
R1
23
2
0V
I4
O4
0V
D3
24
1
DA
DA
DA
DA
TDA1302
7800
+3.5
T866
1,8V
Track-
7950
MPC1715FB
44
43
Vc
VLG
1
Hin1
H-Bridge-
motor-
Track+
2
Hout1A
driver 1
2952
3952
39R
2u2
5950
3
DCout1
CL
Vin
saw
100u
4
Vin
2953
5951
5
DCout2
Vc
VLG
100u
2u2
6
Gnd1,2
7
Hout2A
Focus+
H-Bridge-
motor-
8
Hin2
driver 2
Focus-
9
Hout2B
CL
Vin
saw
2925
10
Vout
CL
saw
1n
6,4V
11
COMP
3925
6,2V
7922
1k
BC807-40
11
3,7V
Deadtime-
5920
control
47u
11
12
13
0,7V
1us/div
3926
0,6V
1M
3927
2927
470
1n
0,6V
6
7
8
9
10
CDP 200
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
11
12
13
14
+3.5
3,6V
> 800 mVpp
7801
TDA1301T
VDD
1
Reset
uPROCESSOR
T891
CONTROL
3,6V
Laser
SIDA
2
INTERFACE
TB=0,5 us/DIV
On/Off
SICL
3
2821
2V
4
SILD
Vref
150n
GEN.
3803
0V
DA
D1
5
Slide
10k
3804
0V
D2
6
Focus
10k
D3
0V
7
Track
10k
8
Vref
DA
0V
9
D4
10k
VDD
R1
0V
10
R2
0V
11
3809
3,6V
12
+3.5
4R7
XTAL
VDD
0,4V
DIVIDER
13
OSCILLATOR
14
DIGITAL
3827
SERVOPROCESSOR
0 R
DA
DA
DA
DA
DA HF
Laser Power
+3.5
Control
T860
T859
T867
3,6V
+3.5
3953
7951
47k
BC858
2,9V
2,9V
3,5V
Laser_in
T861
42
41
40
39
38
37
36
35
34
1,8V
7902
BC848C
Lim1,3
VLG
Vc
1,2V
+1.2
Lim1,3
4-STAGE
H-Bridge-
Hin3
33
PWM-SERVODRIVER
motor-
2,5V
T897
driver 3
32
2949
Hout3A
VG
Vin
CL
saw
2u2
H-Bridge motor driver 4
DCout3
31
5953
2955
VLG
Lim2,4
CL
Vin
Vc
saw
VG
VG
100u
47u
30
+A
Abs.-
Vin
Pre-
PWM
2954
Lim2,4
DCout4
29
5952
driver
100u
4u7
Amp.
28
Gnd3,4
VG
Hout4A
27
Sldm-
Hin4
26
Pre-
driver
Hout4B
25
Sldm+
Vin
VG
POWER CONTROL
24
0V
Power
switch
+uP
3450
CL
0,6V
saw
Sawtooth
100k
Sync
23
Vin
Oscillator
Clock
0V
7450
Oscillator
BC848
REG.
Charge-
pump
FOR_CPU
driver
VREF
VG
Cg
Vreg
Cosc
14
15
16
17
18
19
20
21
22
3,3V
0,7V
0,6V
3,8V
6,4V
1,2V
12,1V
BAT54S
+A
T836
+1.2
6951
+S
Supply: +S, +1,2
11
12
13
14
GRUNDIG Service
2 - 4
15
16
17
18
19
+3.5
+3.5
2
3
4
3,6V
28
3823
T893
27
100
26
25
3813
3814
5
PDM
2k2
2k2
24
23
6
T868
22
3815
3816
21
+3.5
2k2
2k2
+uP
20
3,6V
+A
19
16,9344MHz
+3.5
3826
18
3817
3818
1M
+1.2
2k2
2k2
17
7
+S
T869
T892
16
3825
0V
15
10k
2826
T871
100p
OTD
6
7
Track_in
Focus_in
Slide_in
Pow-on
5
Vreg
Discmotor control
+A
+3.5
+3.5
7961
7960
BC807-40
6960
BC807-40
BAT54C
7965
7964
2966
BC848
BC848
10n
3963
3962
1k
1k
7963
7962
BC817-40
BC817-40
T811
T812
T813
T814
Sldm-
T815
10
Sldm+
T816
T817
Track-
During focus search
8
T818
Focus+
9
8
+
2V
-
T819
Focus-
1s
T820
Track+
15
16
17
18
19
CDP 200
20
21
1800 B 2
T861 H13
1950 N20
T866 G 9
2465 M11
T867 G11
2800 D 3
T868 C16
2801 E 9
T869 D15
2802 E 9
T871 E15
A
2803 E10
T891 B13
2804 E10
T892 D16
2805 E10
T893 B17
2806 E11
T897 I14
2807 E11
2808 E11
LS
2809 E12
FROM/TO SIGNAL
2810 E13
Hf
2812 D16
PROCESSING PART
2813 C17
CLK16
2814 C18
2815 D17
B
2816 D18
SDA
2817 D17
2818 D18
SCL
2820 B13
2821 B13
SLD
2826 E16
2901 D 3
PoRes
2902 A 5
2910 H14
OTD
2920 J 4
C
2921 J 5
Pow-on
2922 M 5
FROM/TO SUPPLY
2923 M 5
Vreg
2924 M 6
CONTROL PART
2925 K 7
+uP
2927 M 9
2935 K 8
2949 I14
+A
2950 G 9
2951 H 8
+3
2952 I 8
D
2953 J 8
+1
2954 J14
2955 J14
+S
2956 J 8
2957 M11
GND
2958 M12
2959 N11
2960 M12
2961 M13
2963 M10
2965 I19
E
2966 J18
3450 L14
3.5V
3800 C 3
3803 C11
3804 C10
3805 C10
Tb 0.5us
3806 D10
3807 D10
3808 D 9
3809 D12
F
3811 E13
3813 C17
3.5V
slide not moving
3814 C18
3815 C17
3816 C18
TB 0.5us/DIV
3817 D17
3818 D18
slide out
3819 B16
3.5V
3820 B17
3821 B17
3822 A 8
G
3823 B16
slide in
3824 A12
3.5V
3825 E16
3826 D16
3827 E12
3900 C 4
3901 D 5
3902 D 4
3903 B 5
3905 B 4
3910 G14
H
3911 H14
3912 H14
3922 M 4
3923 M 4
3924 M 6
3925 L 7
3926 M 9
3927 M10
3933 M 4
3950 G 8
I
3951 G 8
3952 I 9
3953 G13
3960 H19
3961 I19
3962 J19
3963 J16
3964 I16
3965 H16
DMot4
3966 I16
3967 I19
J
FROM SIGNAL
DMot3
5920 L 5
5950 J 9
PROCESSING PART
5951 J 9
DMot2
5952 J14
5953 J14
DMot1
6920 M 6
6951 N12
6960 I18
6962 J18
6963 J17
7450 L14
K
TO SIGNAL
7800 E 7
Innersw
7801 B13
PROCESSING PART
7901 D 4
7902 H14
CDM12.3
7922 L 6
DISC DRIVE
7950 H 9
7951 G13
1
7960 I18
Inner-
7961 I17
switch
7962 J18
2
L
7963 J17
7964 I16
3
7965 I19
T801 B 2
Disc-
T802 C 2
motor
4
T803 C 2
T804 C 2
T805 C 2
5
T806 D 2
Slide-
T807 D 2
motor
T808 D 2
6
M
T809 D 2
T810 E 2
7
T811 L20
T812 L20
T813 L20
8
T814 L20
T815 M20
Focus
9
T816 M20
T817 M20
Track
T818 M20
10
T819 N20
N
T820 N20
T836 N11
1950
T859 G10
T860 G12
10FM1.0BT
20
21
GRUNDIG Service
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