Philips FW-V787/21M - 3 CDC-LC Circuit Diagram Part 1; CD Drive and Servo Driver Circuits; Motor Driver and HF Circuitry; Signal Processor and Microcontroller Interface

10-710-7
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
TRACK
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
1K3824
+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
LD1
MON4
PWRON
LDON
from part2 7800/pin64
7
10
RFEQO
RFFB
9
RGADJ
14
VCC2 13
VCCL2
2827
TZA1024/TZA10257801
CDRW 11
CFIL3
CMFB
8
DIN5
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
RW/DA
from part2 7800/pin61
Innersw
VrefCD10
TO SERVOPOCESSOR
7800 on PART2
FROM SIGNALPOCESSOR
7800 on PART2
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
6789101112
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
M630007803
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 part 2
5V
5V
10V
10V
VrefCD10 VrefCD10
1.6V
1.6V
3,3V
3,3V
3,2V
11 12 13 14
1234567891011121314
78910
A
B
C
D
E E
F
G
H
123456
F
G
H
A
B
C
D
I I
7806
BC847B
3794
82K
3872
4k7
EQSEL
from part2 7800/pin62
3835
1R
6810
1N4003
3874
1R
3873
1R
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 step 2
2V
+
-
1s
CD_RW = 3V / CD_DA = 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
3CDC-LC Herman Mainboard Sheet1 2001-10-15 (non CDR Version)
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
2848 H5
2859 D13
2860 A9
2884 D11
2885 C9
2886 C10
2887 C11
3700 D13
3702 C9
3703 D12
3704 C13
3709 C14
3710 D14
3720 C10
3721 D10
3722 C11
3724 C12
3725 D11
3726 C12
3727 C11
3728 D10
3729 D11
3735 B9
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
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
3886 A10
4801 E8
6811 C11
6812 C12
7801 D6
7803 E3
7806 E5
7820 C10
7821 C13
7822 C12
7823 C13
TB = 0.5µs/div
800mVpp
EYE-PATTERN
to 7800 on part 2
HF
HF_DETECT
to 7800/pin34
on part 2
100n
2885
3720
150K
3728
100K
3735
100R
3721
2K2
+5V
7820
BC847B
7823
BC847B
7821
BC847B
7822
BF550
3703
1K
3710
10K
3700
100K
3729
1K
3725
470R
3702
10K
3722
2K2
3724
100K
3709
4K7
3726
100R
3727
2K2
3704
100K
100n
2886
1n
2887
1n
2884
220n
2859
6811
BAS85
6812
BAS32L
HF-Detector
3V
VAM2201