Philips mc77 Service Manual page 51

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1802 B6 2819 B6 2842 B4 2850
1803 F14 2820 B6 2845 A4 2853
2817 C7 2831 G5 2847 B4 2854
2818 C7 2833 G5 2849 A3 2858
1 2
3DTC-mainboard VrefCD10
part 2
A
EYE-PATTERN
HF
800mVpp
B
TB = 0.5µs/div
LDON
to part1 7801/pin7
Innersw
from 1801
C
RW/DA
to part1 7801/pin11
M2
M1
3883
D
+3.3V
10R
SL
FO
RA
E
+3servo
3.2V
F
G
H
I
. . . V DC voltages measured in
PLAY MODE
with following conditions:
V EVM
"+10V" = 10V
"+5V" = 5V
1 2
10-9
A3 2866 C12 2885 C10 2889 C10 2893
B3 2867 C12 2886 B9 2890 D10 2894
B3 2868 D12 2887 C9 2891 B8 2895
D3 2869 D12 2888 D9 2892 D11 3702
3 4 5
3863
470R
+3.3V
2849
2850 3875
2n2
2n2 1K
PHOTO DIODES
22K
CD DRIVE on PART1
3874
2842
2847
47n
2853
4u7
47p
+3.3V
1.7V 1.7V 1.7V 3.2V 0.8V 1.6V 1.6V 1.6V 1.6V 1.6V
1 2 3 4 5 6 7 8 9 10 11
64
V1 ANALOG / DIGITAL
63
3.2V CONVERTER
FRONTEND
62 V5
Signal Processor
V4
61
SAA7324/SAA7325
PRE-
7800
60 MOTO2
PROCESSING
DIG.
MOTO1 PLL
59
CONTROL
FUNCTION
58 VSSD3
VDDD2C
57
AUDIO
3.2V PROCESSOR
56 SL
FO
55
54 RA
CFLG
53
PEAK
52 VDDD1P
DET.
DOEM
DOBM 51
SUBCODE MICROCONTROLLER
VSSD2
50 PROCESSOR INTERFACE
CL11|4
49
48 47 46 45 44 43 42 41 40 39 38
2833 2831
27p 1n
RESET
from shift register7814
on part 3
DOBM
3 4 5
11/03/2012
B12 3703 C12 3735 F11 3756 C9 3760 B9
C7 3719 D12 3743 I11 3757 C9 3761 B9
D7 3720 D12 3754 G13 3758 D9 3762 B9
C12 3733 F11 3755 B8 3759 D9 3763 B9
6 7 8
2819 2820
33p 33p
3755 3755
1802 +5V +5V
100R 100R
TF01
+3.3V
2891 2891
1.6V 1.6V 1.6V 1.6V
220u 220u
12 13 14 15 16
17
2817
3.2V
100n
TIMING
3757 3757
LN LN LN
18
22K 22K
3756 3756
LP LP
LP
19
22K 22K
VNEG
20
VPOS 21
3V
3759 3759
RN RN RN
22
22K 22K
3758 3758
RP RP
RP 23
22K 22K
SELPLL
24
3V
TEST1 25
CL16
26 +3.3V
DATA 27
WCLK 28
SCLK 29
EF
30
SERIAL DATA
TEST2
31
LOOPBACK
INTERFACE
32
KILL
37 36 35 34 33
HF Detect
3854
+3.3V
10K
6 7 8
World of free manuals
10-9
3764 C11 3841 I11 3853 A4 3860 G5
3765 D11 3844 F5 3854 G6 3863 A4
3814 B7 3845 F5 3857 G5 3865 G4
3816 D7 3849 G5 3858 G5 3866 B4
9 10 11
2,25V 2,25V
Active Low-Pass Filter Active Low-Pass Filter
4,5V 4,5V
7816-B 7816-B
8 8
6 6 TDA1308T TDA1308T
2V 2V
3702 3702
7 7 2,3V 2,3V
LEFT LEFT
5 5 100R 100R
2V 2V
4 4
GNDA GNDA
7816-A 7816-A
2V 2V 2 2 TDA1308T TDA1308T
3719 3719
RIGHT RIGHT 1 1 2,3V 2,3V
3 3 100R 100R
2V 2V
GNDA GNDA
3733
voltage stab.
33R
+3.3V 7811
3.3V
4.2V
BC847B
3735
4.1V
100R
PDZ-3.9B
+5V
+10V
3743
DOBM
470R
9 10 11
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3867 A4 3883 D2 7816-A D11
3874 B3 6801 F10 7816-B C10
3875 A3 7800 C4
3881 B3 7811 F10
12 13 14
A
B
47n 47n
2893 2893
GNDA GNDA
2866 2866
10u 10u
C
GNDA GNDA
2868 2868
10u 10u
D
GNDA GNDA
E
F
1803
19
LEFT
18
GNDA
ANALOG AUDIO
17
RIGHT
16
+5V
15
GND
G
14
+A
13
SW_INFO SW_INFO
communication with
12
Shift Register SHR_DATA
SHR_DATA
on part 3
11
SHR_CL
SHR_CL
RAB 10
RAB
SDA
9
DATA
SILD
8
SILD
H
7
GND
SICL
6
SICL
5
GND
4
Not Connected
EBU
3
EBU
2
EBU_GND
1
GND
I
FE-ST-VK-N
3DTC Mainboard Sheet2 2001-10-09 (Basic Version)
12 13 14