Philips FW-V787/21M Service Manual page 63

1800 C1 2803 B5 2808 A5 2815 D5 2830
1801 G1 2804 D6 2809 I5 2817 E5 2831
2800 C4 2805 B5 2810 A4 2819 C2 2832
2801 C5 2806 A5 2811 A5 2827 B4 2835
2802 B4 2807 A4 2814 G5 2828 A13 2836
1 2 3
D1
3CDC-LC
part 1
D5
A
D4
B
D3
D2
4u7
CD Drive
2819
C
D4
VAM2201
1800
GND
1
D5
D3 2 D3
D3
D5 3
D4
D2
VCC 4
VREF 5 D2
D1
VrefCD10
D
LD 6 5V
MON 7 1.6V
1.9V
D4 8
D1 9
D2
10
GND 11
T+
12 TRACK+
E F-
13 FOC-
F+
14 FOC+
15 TRACK-
T-
7803
FMZ-ST
FOC- 23
Focus search
Service step 2
F
+
2V
-
FOC+ 24
1s
TRACK+ 13
TRACK- 14
G
25
1801
26
1
27
Innersw
to 7800/pin63
INNERSW. 28
2
29
3873
DISC+
3
30
+
DISC 1R
31
4 DISC-
_
35
SLIDE-
5
_ 3874 1R
5
SLIDE
SLIDE+
6 DISC+
+
H
PH-S
DISC- 4
SLIDE- 32
SLIDE+ 33
I
6 7 8 9 10 11 12
1 2 3
10-7
H6 2839 G5 2848 H5 2886 C10 3704 C13
E4 2840 H5 2859 D13 2887 C11 3709 C14
I6 2841 F6 2860 A9 3700 D13 3710 D14
I5 2842 F5 2884 D11 3702 C9 3720 C10
E8 2844 G6 2885 C9 3703 D12 3721 D10
4 5 6
3833 3808
R2 (CD10)
22K 10K
3834
3807 R1 (CD10)
22K 10K
3805
D4 (CD10)
10K
3811 3806
D3 (CD10)
27K 10K
3802 3803
D2 (CD10)
56K 10K
3800 3801 D1 (CD10)
56K 10K
3822
2K7
HF-Amplifier & Laser power control
3821
7801
7
2.9V
4K7 LDON
PWRON
from part2 7800/pin64
6
GND
3820
Σ (D2-D4) = Audio signal 2815
5 DIN
0.8V
220n
4K7
3830
0.2V 4 MON
ESD sensitive line!
15K
2804 1V 3 CFIL
U >400mV
->Laser damaged !
4n7
3815
2 VCCL
4.7V
+5V
4R7 1
2.1V LD
3829
ESD sensitive line!
4R7
3872
BC847B
7806 4k7
M63000
Vref Vref
Servo Driver
-
3843 3842
19
+
47K 47K
21
-
+
22
Vref Vref
+
3846 3845
15
47K 47K
-
20
VCC 6810
3835
17
VCC +10V
16
1R
REG. Vref
1N4003
3852
36
Standby LDON
1K
Motor Driver
Vref Vref
18
NC
+
3839
3
47K
-
Vref Vref
-
3848
34
100K
+
3837
1 Vref IN
+3Servo
REG
10K
2
1,6V
Vref
4 5 6
3722 C11 3728 D10 3802 B4 3808 A4 3822
3724 C12 3729 D11 3803 B4 3811 B4 3824
3725 D11 3735 B9 3805 A4 3815 E5 3829
3726 C12 3800 B4 3806 B4 3820 D4 3830
3727 C11 3801 B4 3807 A4 3821 C4 3833
7 8 9
3735
+5V
100R
3702
10K
VrefCD10
TZA1024/TZA1025
3824 1K
CMFB
8
2x
1.6V
3866
RFFB 9
0.9V
10K
4x RFEQO
10
1.7V
CDRW 11
1x
EQSEL 12 3V
3.0V
VCC2 13
RGADJ 14
V/I
V/I
+3.3V
FO
3V
0V
RA
3V
0V
+3.3V
M1
3V
0V
SL
3V
0V
* marked components only forseen
7 8 9
10-7
C4 3834 A3 3839 H6 3845 G6 3852 H5
D8 3835 G5 3841 H5 3846 G6 3854 E8
E4 3836 H6 3842 F6 3847 G5 3856 C2
D4 3837 I5 3843 F6 3848 I6 3857 C2
A3 3838 I5 3844 F5 3850 I5 3863 A13
10 11 12
10V
+10V
5V
+5V
3,3V
+3,3V
3,2V
+3servo
1.6V
VrefCD10
HF-Detector
7820
BC847B
7822
7823
2886 2887
BF550
BC847B
6812
3727
100n 1n
2K2
BAS32L
HF
to 7800 on part 2
EYE-PATTERN
800mVpp
TB = 0.5µs/div
10 11 12
3866 D8 3874 H2 7801 D6 7822 C12
3868 A4 3886 A10 7803 E3 7823 C13
3869 A4 4801 E8 7806 E5
3872 E5 6811 C11 7820 C10
3873 G2 6812 C12 7821 C13
13 14
10V
+10V
5V
+5V
3,3V A
+3,3V
3863
33R
1.6V
VrefCD10
B
7821
C
BC847B
HF_DETECT
3704
to 7800/pin34
on part 2
100K
D
E
F
G
H
. . . V DC voltages measured in
PLAY MODE
with following conditions: I
V EVM
"+10V" = 10V
"+5V" = 5V
3CDC-LC Herman Mainboard Sheet1 2001-10-15 (non CDR Version)
13 14