Philips MCW770 Service Manual page 44

1 2 3
5DTC CD BOARD
A
B
C
PHOTODIODES A..F
D
Laser power control
CD Drive
U >250mV
->Laser damaged !
Sanyo DA12T3
1800
E
VREF 16
VrefCD10
VCC 15 +5V_HF
+5V_HF
E 14
E
E 13
D
D
B
A 12
A
C A
D
11
B
B
F
C 10
C
3,9V
F
9
F
F
3,3V
8
GND
7879
7 3866 BC807-40
LD
2V
6
4R7
GND
ESD sensitive lines!
5
MON 3872
4 2K7
F+
3
T+
G
2 T-
7802
1
F- MM1469PH 22 21
Vcc Vcc
Focus search
F+
26
24
-
+ F-
2V 27
- +
25
1s
V
REF
H
T-
17
19
-
T+
18
+
20
V
REF
1
-
M SLIDE
2 +
V
REF
I
11
-
M DISC
12 +
10
V
3846 REF
Driver
7
+5V Mute
1K
V
REF
Motor Driver
23
- +
J 5
+ -
6
...V DC voltages measured in
PLAY MODE 16
with following conditions: 14 +
V EVM
15
"+A" = 12V -
"+5V" = 5V
8,13,29,30
1 2 3
10-6
4 5 6
3801 3807
E
39K 10K
3802 3808
F
39K 10K
3803 3809
D
47K
3804 3810
C
47K 10K
3811
3805
A
47K 10K
3806 3812
B
10K
47K
3813
D
2K2
C 3814
2K2
B 3816
2K2
A 3815
EYE-PATTERN
3820 2K2
+5V
4R7 +3.3V
TB = 0.5µs/div
4,6V
7811-A
3 0,17V
8 HF-Amplifier
LM358D
3823 1
+5V_HF
3V
1K LD
2 0,17V ON
From 7800
4
pin64
+8V
7876
BC847B
3901
1,8V
Σ (A-D)
560R
Vref
3918
10K
3848 3847
FO
2881
FOCUS
220R 820R
560p
Vref
3919
15K
3852 3851
RA
TRACK 5001
220R 820R
3856
SL
3
SLIDE M1 M2
2K7
4
Vref
CH-A
7811-B CH-B
5 3836
9
LM358D
1,2V accelerates
7 100K
disc
1,7V
3859 3860
6
brakes
1,2V
100K 12K
disc
3855
39K
2840
Vref
33n
4 5 6
7 8 9 10
R2 (CD10)
R1 (CD10)
D4 (CD10)
10K
D3 (CD10)
D2 (CD10)
3833
3,2V
+3.3V
120R
For sets with
DIGITAL OUT only
D1 (CD10)
2822
1n5
17 18 19
1810
VDDA2
CST
16
8M467 CRIN
15
CROUT
D
14 VSSA2
R2
13
R2
R1
12
R1
D4
11 D4
ADC
D3
10
D3
D2
9
D2
800mVpp
D1
8 D1
3893
VREF GEN.
VrefCD10
7
VRIN
470R
3895
6
IREF
27K
3896
+3.3V
5 VDDA1
100R
END
4
VSSA1 FRONT
3
ISLICE
2813 3898
HFIN 2 HFIN
4n7 220R
2,4V INTERFACE
2883 VERSATILE
3903 3904
1
HFREF
470n 3K3 3K3
LD ON
64 63 62
LD
1,2V ON
470R to 3826,3827
3899
3906
2,6V
CD_DA: 0V / CD_RW: 3V
2K7
0,65V
3923
7878
+3.3V
BC847B
7877 10K
Sanyo
BC847B Mitsumi
DA12T3
MCD2
Drive detection
8V
+8V
During speed up During brake
3V 0V
5V
3V
+5V
0V
0V 0V
3,3V
+3.3V
2,9V
+3servo
1,45V
Vref
1,65V
VrefCD10
7 8 9 10
10-6
11 12 13
3912
6,1V
+8V
220R
3925 3873 7810-B
2,4V 8
LM358DT
6
100R
33K
7 3V
LEFT CHANNEL
3926 3874
5
2,4V
4
100R 33K
Active Low Pass
3927 3864 7810-A
2,4V
LM358DT
2
100R 33K
1 3V
RIGHT CHANNEL
3928 3867
3
2,4V
100R 33K
+3.3V
3889
Digital MP3 Data
470R
3890
470R
3878
2823
2825
470R
1n5
220u
20 21 22 23 24 25 26 27 28 29 30 31 32
KILL
33
VSSD1
INTERFACE
BITSTREAM DAC INTERF.
SER. DATA KILL
VERSAT. 34
V2|V3
WCLI 35
Signal Processor
INTERF.
Digital Audio Data
LOOPBACK
36
SDI
SER. DATA
37
SCLI
PROCESSING
38
PRE- SAA7325 RESET
7800
39
SDA
FUNCTION PROCESSOR
CONTROL AUDIO
40
SCL
RAB 41
42
SILD
43
STATUS
DEMOD
SRAM
EFM
ADDR
TEST3 44
CORR. DET.
PLL 45
RCK
ERROR PEAK
DIG.
46
SUB
INTERF.
CONTROL STAGES
EBU
SFSY 47
MOTOR OUTPUT
48
SBSY
CL11|4
61 60 59 58 57 56 55 54 53 52 51 50 49
2886 3838
100n
470R
+3servo
2831
3V
47u
For sets with DIGITAL OUT only
0V
+3.3V
M2 M1 SL FO RA
L7805
7801
12V
OUT IN
+5V
7875
3880
BC847B 4,9V
33R
+3.3V
100R
3881
3844
150R
11 12 13
14 15
2826
3865 2851 47n
LEFT
A
180R 10u
to / from
MP3 Board
1820
1
GND
uP CLK
2
B
DSP_CLK
uP DATA
3871 2846 3
RIGHT DSP_DATA
uP FRAME
4
180R 10u
DSP_FRAME
5
SPDIF_GND
SPDIF
6
SPDIF
PORE
7
CD_IIS_DATA CD10_RESET
SILD 8
SILD
IIS_WCLK
RAB
9
RAB
C
SICL
10
IIS_SCLK
SICL
SDA
11
SDA
12
GND
+3.3V +3.3V
IIS_SCLK 13
IIS_SCLK
14
GND
IIS_WCLK
15
Inner switch
IIS_WCLK
detection
AU_IIS_DATA
16
AU_IIS_DATA
D
CD_IIS_DATA
17
3831 CD_IIS_DATA
IIS_WCLK
18
GND
3916 AU IIS DATA
19
+5V +5V
20
3832 GND
IIS_SCLK
21
GND
3837
PORE
2827
1n E
3910
SDA
2828
27p
3839
SICL
3849
RAB
3845
SILD
470R (8x)
F
to / from
5DTC Control Board
1823
Tray_IRQ
8
Tray_IRQ
Tray_I2C_SCL
7
Tray_I2C_SCL
Tray_I2C_SDA
6
Tray_I2C_SDA
uC_RESET
5 G
uC_RESET
4
GND
3
+A
2
+5V +A
SPDIF
1
GND
to / from
Audio / Combi Board
1824 1824 H
LEFT
1
LEFT
2
Analog Audio
GND A
RIGHT
3
RIGHT
+5V 4
+5V
5
GND
+A
6
+A
Tray_I2C_SDA
7
Tray_I2C_SDA
I
Tray_I2C_SCL
8
2
Tray_I C_SCL
Tray_IRQ
9
Tray_IRQ
uC_RESET
10
uC_RESET
uP_FRAME
11
uP_FRAME
uP_CLK
12
uP_CLK
13
GND
uP_DATA
14
uP_DATA J
15
GND
5DTC CD Board MP3 Version 20040616
14 15