Philips FW-V320/21M Service Manual page 65

1800 C1 2803 B5 2808 A5 2815 D5 2830 H6
1801 G1 2804 D6 2809 I5 2817 E5 2831 E4
2800 C4 2805 B5 2810 A4 2819 C2 2832 I6
2801 C5 2806 A5 2811 A5 2827 B4 2835 I5
2802 B4 2807 A4 2814 G5 2828 A13 2836 E8
1 2 3
D1
3CDC-LC
part 1
D5
A
D4
B
D3
D2
4u7
CD Drive
2819
C
D4
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 s ep 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
5 SLIDE-
_ 3874 1R
5
SLIDE
SLIDE+
6 DISC+
+
H
PH-S
DISC-
4
SLIDE- 32
33
SLIDE+
I
6 7 8 9 10 11 12
1 2 3
10-7
2839 G5 2846 H5 2859 D12 2887 E12 3721 C10
2840 H5 2848 D9 2878 D10 3700 D11 3722 D12
2841 F6 2849 E11 2884 C11 3702 C9 3724 C11
2842 F5 2850 D14 2885 C9 3703 D13 3725 C11
2844 G6 2851 E9 2886 C9 3720 C10 3726 C11
4 5 6
3833 3808
R2 (CD10)
22K
10K
3834 3807
R1 (CD10)
22K 10K
3805
D4 (CD10)
10K
3806
3811
D3 (CD10)
27K 10K
3803
3802
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
4K7 220n
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 3835 +t° 6810
17
+10V
VCC
16
REG. Vref PTH8
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
3727 C12 3778 E10 3800 B4 3806 B4 3820
3728 D9 3779 D10 3801 B4 3807 A4 3821
3729 C12 3780 E10 3802 B4 3808 A4 3822
3735 E11 3781 D13 3803 B4 3811 B4 3824
3777 D10 3782 E12 3805 A4 3815 E5 3829
7 8 9
3749 3752 3702
+10V
68R 68R 68R
VrefCD10
TZA1024/TZA1025
3824 1K
CMFB
8
2x
Signal flow Quad Speed
1.6V
3866
RFFB 9
0.9V
10K
4x RFEQO Signal flow Double Speed
10
1.7V
CDRW 11
1x
EQSEL 12
3.0V
VCC2 13
RGADJ 14
V/I
Single Speed = 3V
V/I
Double Speed = 0V
Quad Speed = 1,5V
+3.3V
7804
BC847B
FO
3V
0V
RA
3V
QUAD Speed only
0V
+3.3V
M1
3V
0V
SL
3V
0V
* marked components only forseen
7 8 9
10-7
D4 3830 D4 3836 H6 3842 F6 3847 G5 3856
C4 3831 F8 3837 I5 3843 F6 3848 I6 3857
C4 3833 A3 3838 I5 3844 F5 3850 I5 3863
D8 3834 A3 3839 H6 3845 G6 3852 H5 3866
E4 3835 G5 3841 H5 3846 G6 3854 E8 3868
10 11 12
10V
+10V
5V
+5V
3,3V
+3,3V
3,2V
+3servo
1.6V
VrefCD10
HF-Amplifier
for quad speed versions only
7817
BFS20
7821
BFS20
3725 3726
330R 270R
2884 3727
120p
7820
BC847B
conductive at Double Speed
blocked at Quad Speed
7824
2849 2887
BFS20
100n
7819
BC847B
SPEEDSEL
from part3 7813/pin7
DOUBLE Speed = 3V
QUAD Speed = 0V
10 11 12
C2 3869 A4 7803 E3 7820 D11
C2 3872 E5 7804 E8 7821 C12
A13 3873 G2 7806 E5 7822 C13
D8 3874 H2 7817 C10 7823 C13
A4 7801 D6 7819 E11 7824 E10
13 14
10V
+10V
5V
+5V
3,3V
A
+3,3V
3863
33R
1.6V
VrefCD10
B
7822
BF550 C
7823
BFS20
1K 3781 2850
560R
470p
D
HF
to 7800 on part 2
1n
E
for double speed versions
a wire bridge is stuffed instead of this circuitry
EYE-PATTERN
F
800mVpp
TB = 0.5µs/div
G
H
. . . V DC voltages measured in
PLAY MODE
I
with following conditions:
V EVM
"+10V" = 10V
"+5V" = 5V
3CDC-LC Herman Mainboard Sheet1 2001-07-26 (CDR Version)
13 14