Philips FW-V28 Service Manual page 56

10-8
SERVO CIRCUIT
1450 D28 1800 J 2 1800 H 2 1801 C 2 1805 C24 1805 K24
1800 D 2 1800 K 2 1801 A 2 1802 E28 1805 C24 1805 E24
1800 G 2 1800 H 2 1801 A 2 1803 E26 1805 C24 1805 E24
1800 F 2 1800 I 2 1801 B 2 1804 F26 1805 K24 1805 E24
1800 D 2 1800 H 2 1801 B 2 1805 B24 1805 K24 1805 I24
1800 J 2 1800 G 2 1801 C 2 1805 B24 1805 K24 1805 I24
1 2 3 4
+9V!
1801 1
3800
A
PGND!
1801 2
HOMESW! 12V
2800
7800 A 100n
5
TDA7073A
PGND! PGND!
1801 4 13
MOT-
5.6V
1
2802
1n
B
1801 3 2
MOT+
16
6.1V
14
PGND! 7800 B
TDA7073A
1801 6 2.4V
SLE-
12 7
2803
C
1n
1801 5 6
SLE+
5.8V 2.4V
9
10
PGND! 7810 B
DGND!
TDA7073A
1800 1 2.4V
RAD-
D
5.8V
12 7
2817 2808
5n6 5n6
1800 4 6
RAD+
5.8V 2.4V
9
10
PGND!
+9V!
E
3810
2810
12V
100n
7810 A
F 5
TDA7073A
PGND! PGND!
1800 3 13
FOC- 2.4V
5.4V
1
2812
10n
1800 2 16 2
FOC+
6.2V 2.4V
G
14
PGND!
1800 11
1800 8
H
1800 12
1800 10
I
1800 9
1800 5
J
AGND!
1800 6
LASER!
1800 7
K
+9V!
L
7840 B
TDA7073A
5.8V
1841
12
TRAY
5.8V
M MOTOR
1840
9
PGND!
7840 A
5.8V TDA7073A
1843
N
13
CAROUSEL
5.8V
MOTOR
1842
16
PGND!
O
1 2 3 4
PCS 103 701
1805 I24 1811 G28 21 G27 2805 B 5 2813 F 5 2821 K 6 2827 M13 2843 M 5 2860 A16 2866 D14 2872 F15
1806 A27 1850 N15 2800 A 4 2806 B 5 2814 F 6 2822 L 8 2828 G27 2844 N 5 2861 A16 2867 D13 2873 G15
1807 A27 1851 J21 2801 A 5 2808 D 4 2816 G 5 2823 L 9 2829 G27 2850 J16 2862 A18 2868 D13 2874 I18
1808 D27 1852 K21 2802 B 4 2810 F 4 2817 D 4 2824 L10 2840 L 5 2851 J23 2863 D15 2869 E15 2875 I19
1809 F27 1853 L21 2803 C 4 2811 F 4 2818 E 5 2825 M12 2841 L 6 2852 J16 2864 D14 2870 E15 2876 J11
1810 I18 20 E27 2804 C 4 2812 F 4 2820 G 6 2826 M12 2842 M 5 2853 K23 2865 D14 2871 E15 2877 A21
5 6 7 8 9 10 11
2801
47u/25V
3802
0.3V
47k
3801
3803
47k
0.3V
2805 2806
100n 100n
PGND! PGND!
3804
3805
22k
2804
100n
3816
3819 3817
12k 12k
2818
VddD!
330p
DGND!
3814
2813 2814
2811 3813
100n 22u
47u
PGND! PGND!
+5V!
PGND!
3820
3811
DALLAS
3809 3812
12k 12k
4.7V
2816 2820 7820
18
100n TDA1300
VDD
DGND! AGND! O6 2
23 I6
I6!
6
O5 5
20 I5
I5!
5
O4 1
24 I4
I4!
4
O3 3
22 I3
I3!
3
O2 6
19 I2
2
AGND!
AGND!
O1 4
21 I1
I1!
1
150k/300k -U
0.4V
+ +
VRFE 9
RFE!
I/V
2876
*
11 HG 180p
ON/
AGND!
OFF
3821 LDON 7
16 LO
4.1V 4.2V
2R2
2821 8 VDDL
+5V!
47u/10V
IADJ
17 MI -
+5V!
X
AGND!
SUBSTRATE!
IREF
14 ADJ +5V!
+5V!
VGAP +5V!
C LS VRF GND
3822
3828
13 12 10 15 3826
3824
3840
2822 2824
AGND! 1n 2.6V
AGND! 2823
0.4V 1n 4.5V
12V
2840 7821
2841 AGND! 1.7V 1.3V
47u/25V 1n BC547B
100n
1.0V
5 +5V!
PGND! PGND!
7 3842 3825 3827
100k
0V
3841 3823
2842 2843
22n 10u/10V
AGND! AGND! AGND!
6 3843
100k
0V
14
3847
1 4.8V
100k
2844 3846
22n
3848 During PLAY MODE
2
100k
4.8V
10
DC Voltage During CD PLAY MODE
5 6 7 8 9 10 11
10-8
2878 A21 2884 E23 2892 B23 3804 C 4 3811 G 4 3819 D 5 3825 M10 3831 M13 3838 I14 3847 N 5 3854 J20
2879 A22 2885 E27 2893 C23 3805 C 5 3812 G 5 3820 F 9 3826 L11 3832 L13 3840 L 4 3848 N 5 3855 J22
2880 A22 2886 H26 3800 A 3 3806 F27 3813 F 6 3821 J 6 3827 M11 3833 K14 3841 M 6 3850 I17 3856 J22
2881 E22 2887 D28 3801 B 4 3807 H27 3814 E 6 3822 L 7 3828 L11 3835 J14 3842 M 6 3851 N16 3857 J22
2882 E23 2890 B23 3802 B 5 3809 G 4 3816 D 5 3823 M10 3829 K12 3836 I14 3843 M 6 3852 J20 3858 L23
2883 E23 2891 C23 3803 B 5 3810 E 3 3817 D 5 3824 L10 3830 M12 3837 I14 3846 N 5 3853 J20 3859 K24
12 13 14 15 16 17 18
+5V!
3860
4.7V 3872
47E
2860 2862
2861
100n 9015 100n
22u/16v *
7860
AGND! AGND!
SAA7378
34 MOT2 VDDA1 VDDA2
MOTOR
33 MOT1
CONTROL
28 SL
OUTPUT
26 RA
STAGE
FO
27
8 R1
9 R2
RAM
ADDRESSER
3862 5 D3
10k
3863
7 D4
10k
ADC SRAM
4 D2
3 D1
3864 1.3V
2868 2867 2866 2865 2864 2863 10 IREFT
330k
220p 220p 220p 220p 220p 220p EFM
AGND! 6 VRL DEMOD
AGND! AGND! AGND! AGND! AGND! AGND!
1.3V
AGND!
11 VRH VREF
GEN DIGITAL
PLL
2869
2.5V
14 ISLICE
22n
AGND! 3865
2870 3866 FRONT
15 HFIN END
1k
2.5V
2n7
2871
17 HFREF
47p
18 IREF
2.5V
2872
22n
AGND!
4.6V
LDON! 64 LDON
VddD!
4.7V 58 STATUS DECODE
MICRO
PROCESS
3867
INTERFACE
6860
RESET! 57 RESET
BAW62 2873
100n
51 SDA
INTERF
52 SCL
DGND! &
53 RAB
CONTROL
54 SILD
3838
SDA!
+5Va! 22k
+5V!
3837 X-tal 8.4672MHz
CLK!
+5Va! 22k
3836
3850 2874
RAB!
+5Va! 22k 22p
3835
+5Va!
SILD!
*
+5Va! 22k 4.7V AGND!
2852 2850
100n
10u/10V
DGND! DGND!
DGND!
1.3V 38 6 17 28 39
1.4V
VCC nc1 nc2 nc3 nc4
40 P1-0
41 P1-1
+5V!
42 P1-2
43 P1-3
3833
3829
PORT1 PORT3
44 P1-4
HF DETECTOR
1 P1-5
4.7V
7822 0.0V 2 P1-6
7823
BC557B
BC547B 3 P1-7
6876 3832
100k CPU
BAW62 0.6V
5 P3-0
2825 2826 2827 P3-1
7
3830 3831
100n 100n 22n
8 P3-2
PORT2
AGND!
P3-3
9
AGND! AGND! AGND! AGND! PORT4
29 EA
+5Va!
26 PSEN
27 ALE
14
XTAL2
1850 3851
12MHz
1 3 15 XTAL1
PORT2
2
DGND!
GND
4 16
DGND!
12 13 14 15 16 17 18
3860 A18 3866 E15 3874 E21 3880 O20 7800 C 4 7823 L13 9002 M26 9012 M28 9022 O20 9048 K28
3861 A20 3867 G14 3875 E22 6850 L23 7810 F 3 7840 N 4 9003 N26 9013 N28 9029 N28
3862 C13 3869 H19 3876 E21 6860 G14 7810 D 4 7840 L 4 9004 N26 9015 A18 9038 O28
3863 C12 3870 I18 3877 N20 6875 K10 7820 G 7 7850 J18 9005 O26 9016 N20 9041 K26
3864 D16 3872 A18 3878 N20 6876 L11 7821 L10 7860 B17 9006 L28 9017 N20 9045 K28
3865 E16 3873 E22 3879 O20 7800 A 3 7822 L11 9001 L26 9009 M28 9018 O20 9046 K26
19 20 21 22 23 24 25
+5V!
4.7V
3861
4.7V
CD7 VddD!
*
2877 2878 2879
AGND! 2880
100n 100n 100n
22u/10V
DGND! DGND! DGND! DGND!
VDD1P VDD2P VDD3C
55
NC1
+5V!
4.8V
1 1805
1
VSSA1
AGND! 2890 2892 2
1805
12
VSSA2 47u/10V 100n
*
AGND! 3 1805
VSS1 32 DGND!
DGND!
PGND! PGND! 4 1805
VSS2 39
DGND!
DGND!
12V
VSS4 56
5 1805
DGND!
16
VSSA3 +9V! 2891 2893
AGND! 100u 100n
49
VSS3 *
DGND!
PGND! PGND!
SBSY 35
SFSY 36
SUBCODE
PEAK
PROCESSOR SUB 38
DETECT
RCK 37
3876
SCLK 48 I2S_SCLK! 10 1805
100R
SERIAL 3875 11 1805
WCLK 46 I2S_WCLK!
100R
DATA 3874 12 1805
DATA 45 I2S_DATA!
100R
INTERFACE
3873
MISC 44 MISC!
100R
2881 2882 2883 2884
100p 1n 100p 100p
ERROR
CORRECTOR
CFLG 61 1CFLG!
DGND! DGND! DGND! DGND!
AUDIO
FLAGS
C2FAIL 60
PROCESSOR
EBU DOBM 31
INTERFACE
KILL
43
KILL
V1 62 HOMESW!
HOMESW!
4.8V
V2 63
VERSATILE
INTERFACE V3 42
TIMING TEST
V4 41
V5 40
3869
AGND!
AGND!
3870 DGND! 13 1805
DGND!
1M
1810 14 1805
1 3 15 1805
DGND!
DGND!
2875
2
22p
AGND!
AGND!
+5V! +5V! +5V!
7850
+5V! +5V! +5V! +5V!
OM5284EB05
3852 3853 3854
2851
10u
1851
P2-0 18
CDM_UP!
* * *
7 1805
P2-1 19 CDM_UP
DISC_1!
DGND!
8 1805
P2-2 20 TRAYSW!
1852
9 1805
P2-3 21
3859
DRST! 6 1805
P2-4 22
Disc1 470R
P2-5 23 DGND!
1853 3858
P2-6 24
Tray
P2-7 25
DGND!
P0-0 37
DGND!
UP
P0-1 36
P0-2 35
P0-3 34
P0-4 33
P0-5 32
P0-6 31
P0-7 30
*
9016
P3-4 10 3877
470R
P3-5 11 DGND!
* 9017
3878
P3-6 12
470R
3879
P3-7 13
470R * Provision
*
9018
*
9022
3880
470R
19 20 21 22 23 24 25
10-8
26 27 28
1806
A
+5V 1
+5V
2 1807
GND 3 7 +5V
GND 4 6 GND
5 5 +9V
+9V
DRST DRST B
6 4
DSA_ACK DSA_ACK
7 3
DSA_DATA
8 2 DSA_DATA
DSA_STB 9 1 DSA_STB
1808
I2S_SCLK 10 4 C
I2S_SCLK
WCLK 3
11 WCLK
DATA
12 2 DATA
*
GND
13 1 GND
2887
* 1808
GND 14 1
100p
* 1450
GND 15 D
*
DGND!
1803
YKC21-3415 20 1802
T 1 1
E
S 2 2
2885
MT
DGND!
10n
DGND!
1809
F
1804
1 3806
1k
L
2828 21 1811
2n2 1 1
4 2 2
G
3 3
DGND!
5
2829
2n2
3807
R 2
1k
3
H
*
Provision for sets with audio o/p
DGND!
I
J
9041 9045
K
DGND! DGND! DGND! DGND!
9046 9048
DGND! DGND! DGND! DGND!
9006
L
DGND! DGND!
9001
9009
AGND!
DGND!
DGND! DGND!
M
9002 9012
DGND! PGND! PGND! PGND!
9003 9013
N
DGND! DGND! DGND! DGND!
9004 9029
DGND! DGND! DGND! DGND!
9005 9038
O
DGND! DGND! AGND! AGND!
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