3Cdc-Lc - Philips FW-V720 Service Manual

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1800 C1 2803 B5 2808 A5 2815
1801 G1 2804 D6 2809 I5 2817
2800 C4 2805 B5 2810 A4 2819
2801 C5 2806 A5 2811 A5 2827
2802 B4 2807 A4 2814 G5 2828
1 2

3CDC-LC

part 1
A
B
4u7
CD Drive
2819
C
VAM2201
1800
GND
1
D5
D3 2
D3
D5 3
D4
D2 VCC
4
VREF 5
D1
VrefCD10
D LD 5V
6
MON 7
1.6V
1.9V
D4 8
D1 9
D2 10
GND
11
T+
12 TRACK+
E F-
13
FOC-
F+
14
FOC+
T- 15 TRACK-
FMZ-ST
FOC-
Focus search
Service step 2
F
+
2V
-
FOC+
1s
TRACK+
TRACK-
G
1801
1
Innersw
to 7800/pin63
INNERSW.
2
DISC+
3
+
DISC
4 DISC-
_
SLIDE-
_ 5
DISC+
SLIDE
6 SLIDE+
+
H
PH-S
DISC-
SLIDE-
SLIDE+
I
1 2
10-7
D5 2830 H6 2839 G5 2848 H5 2885 C9 3703
E5 2831 E4 2840 H5 2852 B12 2886 C10 3704
C2 2832 I6 2841 F6 2859 D13 2887 C11 3709
B4 2835 I5 2842 F5 2860 A9 3700 D13 3710
A13 2836 E8 2844 G6 2884 D11 3702 C9 3720
3 4 5
3833 3808
D1
22K 10K
3834
3807
D5
22K 10K
3805
10K
D4 3811 3806
27K 10K
3802 3803
D3
56K 10K
D2 3800 3801
56K 10K
3822
D4
2K7
HF-Amplifier & Laser power control
3821
D3
2.9V
4K7 LDON
from part2 7800/pin64
3820
Σ (D2-D4) = Audio signal 2815
D2 0.8V
4K7 220n
3830
0.2V
ESD sensitive line!
100R
2804
U >400mV
->Laser damaged !
4n7
3815
4.7V
+5V
4R7
2.1V
3829
ESD sensitive line!
4R7
3872
BC847B
7806
10K
7803 M63000
Vref Vref
Servo Driver
23
-
19
+
21
-
24
+
22
Vref Vref
13
+
15
14
-
20
6811*
25 VCC +t°
3835*
17
VCC
26
16
PTH8
REG. Vref BAS216
27
28
3852
29
36
Standby LDON
30
1K
Motor Driver
31
Vref Vref
35
18
NC
5
+
3
4
-
Vref Vref
32
-
34
33
+
3837
1 Vref IN
+3Servo
REG
10K
6 7 8 9 10 11 12
2
Vref
3 4 5
D12 3721 D10 3727 C11 3801 B4 3807 A4
C13 3722 C11 3728 D10 3802 B4 3808 A4
C14 3724 C12 3729 D11 3803 B4 3811 B4
D14 3725 D11 3735 B9 3805 A4 3815 E5
C10 3726 C12 3800 B4 3806 B4 3820 D4
6 7 8
R2 (CD10)
R1 (CD10)
D4 (CD10)
D3 (CD10)
D2 (CD10)
+5V
D1 (CD10)
VrefCD10
7801 TZA1024/TZA1025
7
3824 1K
CMFB
8
2x
PWRON
1.6V
3866
6 RFFB
9
GND
0.9V
10K
5 DIN 4x RFEQO 10
1.7V
CDRW 11
1x
4 MON EQSEL 12
3.0V
1V 3 CFIL VCC2 13
RGADJ 14
V/I
2 VCCL
1 LD
V/I
+3.3V
3843 3842
FO
47K 47K
3V
0V
3846 3845
RA
47K 47K
3V
+10V
0V
+3.3V
3839
M1
27K
3V
0V
3848
SL
100K
3V
0V
* marked components only forseen
6 7 8
Published in Heiloo, Holland.
10-7
3821 C4 3833 A3 3838 I5 3844 F5 3850 I5
3822 C4 3834 A3 3839 H6 3845 G6 3852 H5
3824 D8 3835 G5 3841 H5 3846 G6 3854 E8
3829 E4 3836 H6 3842 F6 3847 G5 3856 C2
3830 D4 3837 I5 3843 F6 3848 I6 3857 C2
9 10 11 12
+10V
+3,3V
+3servo
VrefCD10
HF-Detector
3735
100R
7820
BC847B
7823
3702 2886 2887
BC847B
10K
100n 3727 1n
2K2
HF
to 7800 on part 2
EYE-PATTERN
800mVpp
TB = 0.5µs/div
9 10 11 12
1/3/16
3863 A13 3876 B13 7801 D6 7823 C13
3866 D8 3886 A10 7803 E3
3868 A4 4801 E8 7820 C10
3869 A4 6811 C11 7821 C13
3872 A13 6812 C12 7822 C12
13 14
10V
10V
+10V
5V
5V
+5V +5V
3,3V
3,3V A
+3,3V
3,2V 3863
33R
1,6V 3872
Vref
1K
1.6V
1.6V
VrefCD10
B
7822
7821
C
BF550
BC847B
HF_DETECT
6812
3704 to 7800/pin34
on part 2
100K
BAS216
D
E
F
G
H
. . . V DC voltages measured in
PLAY MODE
I
with following conditions:
V EVM
"+10V" = 10V
"+5V" = 5V
3CDC-LC Herman Mainboard Sheet1 2000-09-08 (non CDR Version)
13 14