3Dtc-Mainboard - Philips mc77 Service Manual

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1800 C1 2813 A5 2822 B5 2834
1801 I1 2814 B4 2828 C4 2836
2810 A5 2815 A4 2829 C5 2839
2811 A4 2816 B5 2830 C2 2843
2812 A4 2821 B4 2832 D5 2846
1 2

3DTC-mainboard

part 1
A
B
4u7
CD Drive
2830
C
VAM2201
1800
GND 1
D5
D3
2
D3
D5 3
D4
D2
VCC 4
VREF 5
D1
VrefCD10
D
LD 6 5V
MON 7
1.6V
D4 8 1.9V
9
D1
D2 10
GND
11
T+
12
E F-
13
F+
14
T- 15
FMZ-ST
F
G
H
1801
1
Innersw
to 7800/pin63
INNERSW. 2
3
+
DISC
4
_
_ 5
SLIDE
6
+
I
PH-S
1 2
10-7
E4 2848 F5 2859 H5 2864 I4 3810 A4
D6 2851 F4 2860 B9 2865 I5 3813 A4
E8 2852 B8 2861 H4 3807 A3 3817 B4
E5 2855 G4 2862 H5 3808 A4 3818 B4
F4 2856 G5 2863 H4 3809 A3 3820 B4
3 4 5
3807
D1 3808
22K 10K
3809 3810
D5
22K
10K
3813
10K
3818
D4 3817
18K 10K
3820 3821
D3
56K 10K
D2 3831 3833
56K 10K
3851
D4
2K7
3836
D3
4K7 LDON
from part2 7800/pin64
3835
Σ (D2-D4) = Audio signal 2832
D2
4K7 220n
3861
ESD sensitive line!
15K
2836
U >400mV
->Laser damaged !
4n7
3862
Focus search
+5V
Service step 2
4R7
+
- 2V
1s
3859
ESD sensitive line!
4R7
3812
BC847B
7806
10K
Servo Driver
16
4.7V
3869
1
1.6V
+
+
33K
FOCUS 14,15
FOCUS
2 1.6V
-
Vref
_
13
5V
3873 3899
10V
5
+10V
VDD
2R2 2R2
4.7V 12
3877
_ 6
+
1.6V
33K
10,11
TRACK
TRACK
7
+ 1.6V
-
Vref
5V 9
3,4,8
7802 TDA7073A
3V
0V
0V
Motor Driver
5.1V + 16
100K
1 0.3V
+
3882
DISC 14,15
DISC
2 0.3V
-
_
4.6V 13
3888
3887
10V
5
+10V
VDD
2R2
2R2
4.9V 12
_
6
Vref
+
1.6V
SLIDE 10,11
SLIDE
3892
7
1.6V
-
+ 9
4.8V
82K
3,4,8
7803 TDA7073A
3 4 5
11/03/2012
3821 B4 3835 D4 3856 D8
3869 F5 3876
3829 C2 3836 C4 3859 E4 3870 F6 3877
3830 C2 3846 F8 3861 D4 3871 F5 3878
3831 B4 3851 C4 3862 E5 3872 B9 3879
3833 B4 3855 D8 3864 E8 3873 F4 3882
6 7 8
R2 (CD10)
10V
+10V
5V
+5V
R1 (CD10)
3,3V
+3,3V
3,2V
+3servo
D4 (CD10)
1,6V
Vref
D3 (CD10)
1.6V
VrefCD10
D2 (CD10)
EYE-PATTERN
D1 (CD10)
TB = 0.5µs/div
HF-Amplifier & Laser power control
VrefCD10
7801 TZA1024/TZA1025
2.9V 7
3855 1K
CMFB
8
2x
PWRON
1.6V
3856
6 RFFB 9
GND
HF
0.9V
to 7800 on part 2
10K
5 DIN 4x RFEQO
0.8V 10
1.7V
CDRW 11
1x
0.2V 4 MON EQSEL 12 0V
1V 3 CFIL VCC2 13 3.0V
14
RGADJ
V/I
2 VCCL
4.7V
1 LD
2.1V V/I
+3.3V
3870
FO
47K
3V
0V
3878
RA
47K
A
B
M2
100K
M1
3885
100K
SL
3891
3V
0V
6 7 8
World of free manuals
10-7
B9 3884 H5 3890 I5 7801 D6
G5 3885 H6 3891 I6 7802 G3
G6 3886 A10 3892 I5 7803 I3
G5 3887 H4 3899 F5
H5 3888 H5 6812 F8
9 10
10V
+10V
5V
+5V
3,3V A
+3,3V
3886
33R
3872
1K
1.6V
VrefCD10
B
800mVpp
C
D
E
F
G
H
. . . V DC voltages measured in
PLAY MODE
I
with following conditions:
V
EVM
"+10V" = 10V
"+5V" = 5V
3DTC Mainboard Sheet1 2001-02-01 (non CDR Version)
9 10
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