Philips FW-C870/19 Service Manual page 61

1800 D1 2801 C5 2805 B5 2809 H4 2813 G3 2818 B11 2822 F9 2826 G12
1801 G1 2802 C4 2806 B5 2810 A4 2815 D5 2819 A13 2823 F10 2828 B14
1810 C10 2803 C5 2807 A4 2811 A5 2816 B12 2820 A13 2824 F10 2833 C10
2800 C4 2804 E10 2808 A5 2812 I3 2817 I3 2821 I4 2825 F10 2834 C10
1 2 3
3CDC-LC
part 1
D1 3833
22K
A
3834
D5
22K
B
3811
D4
27K
3802
D3
+5V
56K
C
D2
3800
56K
2849
5V
CD Drive
4u7
VAM2201
1800
GND 3821
1
D5 D3
D3
2 4K7
D3
3820
D D5 3 D2
D4
4K7
D2
4
VCC
3822
D4
1,6V
5
D1 VREF VrefCD10
2K7
LD 6 1,9V
3870
MON 7
D4 8 100R
D1 9
7806
E D2
10
TCA0372
GND
11
T+ 12
4,6V 1
COMMON
F- 13 FOCUS-
F+ 14
COMMON
15 TRACK-
T-
F
4,8V
3
Focus search
Service step 2
+
2V 7807
-
TCA0372
1s
4,5V
3
G
1801
4,4V
1 SLIDE+ 1
+
SLIDE
2
COMMON
-
DISC-
3
-
H
DISC
4 DISC+
7808
+
TCA0372
5
Innersw
Inner Switch
to 7877/63
6
5,7V 3
PH-S
I
6,2V
1
1 2 3
2835 B13 2839 H3 2843 G3 2847 F3 2851 B11 2859 I4 2884 E7 2891 F4 3728 E14
2836 I4 2840 H4 2844 F5 2848 F4 2855 B4 2866 F4 2885 F9 2892 D5 3752 F3
2837 A13 2841 F5 2845 G4 2849 C2 2856 D14 2869 E4 2887 B10 3709 C14 3753 F3
2838 E8 2842 E4 2846 G4 2850 D14 2857 H4 2879 H5 2888 E5 3727 B12 3754 F3
4 5 6 7
3808
10K
3807
10K
3805
10K
3806
10K
3803
10K
3801
10K
Laser power control / HF-Amplifier
7801
TZA1024 / TZA1025
3V 7
CMFB
2x
PWRON
6 RFFB
GND
2815
0,8V 5 DIN 4x RFEQO
220n
CDRW
ESD sensitive lines!
1x
0,2V 4 MON EQSEL
3869
2892 3
CFIL VCC2
U >400mV
->Laser damaged ! 1V
4R7 4n7 RGADJ
V/I
3815
4,7V 2 VCCL
+5V
2,1V 1 LD
4R7 V/I
+C2
11,6V
1,6V
2 7
Vref
+3,3V
3843 3842
8
4
1,6V 2K7 10K
1,6V
6
Vref
3846 3845
5
1,6V 2K7
10K
+C5
11,6V
EYE-PATTERN
1,6V
2 6
Vref
5
4
1,6V
TB = 0,5µs/div
1,6V
7
Vref
3849 3848
8
1,6V
18K 18K
3V
+C1
11,6V
0V
2 6 1,6V
Vref
3839
5
4
1,6V
27k
3V
A
7 1,6V
0V
Vref
0V B
3840
8
1,6V 27k
4 5 6 7
3767 E9 3774 G12 3802 C4 3806 B4 3811 B4 3816 I3 3820 D3 3824 E8
3768 A4 3775 I3 3803 C4 3807 A4 3812 I3 3817 A14 3821 D3 3825 F10
3769 A4 3800 C4 3804 C14 3808 A4 3813 I3 3818 F3 3822 D3 3826 F9
3773 G3 3801 C4 3805 B4 3810 G3 3815 E5 3819 D14 3823 E8 3827 E10
8 9 10
R2 (CD10)
R1 (CD10)
+3,3V
D4 (CD10)
D3 (CD10) 3,2V
D2 (CD10)
VDDA2
TF01
16 CRIN
1,6V
D1 (CD10)
1810
1,6V 15 CROUT
14 VSSA2
13 R2
1,6V
8 1,6V
VrefCD10
1,6V 12 R1
3866 HFOUT
9 0,9V
10K
10 1,6V 1,6V 11 D4
11 0V
10
1,6V D3
0V
12
13 3V 9
1,6V D2
14
8 D1
1,6V
3853
VrefCD10
1,6V 7 VRIN
470R
3827
VrefCD10
0,8V 6 IREF
1,6V
27K
3897 3824
3894
3,2V 5 VDDA1
+3,3V
100R 1K
100R
4 VSSA1
3 ISLICE
1,7V
HFIN 1,7V 2 HFIN
2822 3825
2n2 1K
1,7V 1 HFREF
2824
47n
LDON
3V
for CD_DA : 0V +3servo
for CD_RW : 3V
0V
Innersw
800mVpp
from 1801
FOCUS
TRACK
SLIDE
DISC MOTOR 1
DISC MOTOR 2
8 9 10
3828 G10 3833 A3 3837 B14 3841 G3 3845 F5 3849 H5 3856 C2 3866 D8
3829 F3 3834 A3 3838 B14 3842 E5 3846 F5 3850 I3 3857 C2 3867 B11
3830 G3 3835 H3 3839 I5 3843 E5 3847 H3 3852 A14 3862 B10 3869 D4
3832 D15 3836 H3 3840 I5 3844 I3 3848 H5 3853 E9 3863 B14 3870 E3
11 12 13
3852
11,6V
+C1
2R2
3896
11,6V
+C2
to part 2 2R2
7805
3817
11,6V
+C5
LN LP RN RP
2R2
5V
+3,3V +5V
3,3V
+3,3V
3,2V
+3servo
1,6V
Vref
2851
2818 2816
1n5
220u 1n5
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
VSSD1
SER. DATA
BITSTREAM DAC
VERSAT. V2|V3
INTERFACE KILL
INTERF.
WCLI
SER. DATA
LOOPBACK
Signal Processor INTERF.
SCLI
7877
SAA7324 / SAA7325
RESETn
PRE-
PROCESSING
ADC
SDA
CONTROL AUDIO
FUNCTION PROCESSOR SCL
RAB
SILD
VREF GEN.
STATUS
EFM
SRAM
TEST3
DEMOD
ADDR
FRONT
RCK
END ERROR PEAK
DIG.
CORR. DET.
PLL
SUB
EBU SFSY
MOTOR OUTPUT
INTERF.
CONTROL STAGES
VERSATILE
SBSY
INTERFACE
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
2826
for CD TEXT only
3,2V +3servo
47u
V EVM
#.... for provision only
11 12 13
3873 D14 3895 G12 4812 F8 7808 H4
3889 D14 3896 A14 7801 E7 7877 D12
3892 E14 3897 E7 7806 E4
3894 E9 4811 F8 7807 G4
14 15
11,6V
+10V
A
5V
+5V
3,3V
+3,3V
3863
100R
3837
33R for digital out version B
1K
KILL_L
+3,3V
33
for basic version
C
34
KILL_R
for Coax out versions
35
+3,3V
SDI 36
2850
1n
37
3819
PORE
470R
38 3,4V D
2856
27p
39
SDA
3873 470R
3889
40
SICL
470R
41
3892
42
SILD
470R
E
43
3728
0V
44
4K7
45
RCK
46
SUB
47
SFSY
F
48
SBSY
11,3 MHz
CL11
G
to dig. out circuitry
DOBM
on part 2
PIN50 EBUGND
H
I
. . . V DC voltages measured in
PLAY MODE
with following conditions:
"+10V" = 11,6V
"+5V" = 5V
3CDC LC-MB sh1, 260400
14 15