Control Part - Philips AX7201 Service Manual

1800 C1 2804 B4 2810 C2 2816 E3 2822 D5 2828 E3
1801 B12 2805 B5 2811 C6 2817 D3 2823 E2 2829 E3
2800 A10 2806 B5 2812 C13 2818 D4 2824 E3 2831 F10
2801 A2 2807 B11 2813 C15 2819 D4 2825 E3 2832 F7
2802 B6 2808 B5 2814 C15 2820 D4 2826 E5 2833 F9
2803 B4 2809 B5 2815 D11 2821 D5 2827 E7 2834 F9
1 2 3
FROM CONTROL PART
3841
10K
3800
A
FROM/TO
3801 8K2
CD-DRIVE
+DRIVE
KSM1000
FROM PSM CONTROL
2801 10R
(see Control Part)
3802
1800
22u 6.3V
1K2
18 17
E 16
2858 3805
VCC 15
GND 14
47p 1K2
PD2 13
2859
3806
LD+ 12
3810
GND 11
47p 1K2
VR 10
100R
3811
B MD
9
PD1
8
1K2
VC 7
3812
F 6
3819
GND 5
8K2
F+ 4
22R
3
T-
T+ 2
VREF
1
F-
FLZ
F+
GAIN
T+
C
T-
F-
7801
AN8399SA
D
only for provision
+2.6V
2857
7810
3201 3p3
BC857BW
4R7
2856
+HF
5800
6.3V 47u +2.6V 3820
BLM11A601
2K2
E
3822
470R
3815
0,1V 3853 +2.6V
GCTL
22K
10K
HF-equalization vs speed
1x RFEQ=H, 3XEQ=H
2x RFEQ=L, 3XEQ=H
3x RFEQ=L, 3XEQ=L
3854
0V
BC847BW
F 7809
10K
7804
0,1V
9 PDVIN
NC3
10
2,2V
+2.6V
11 LDOFF
5803
1,8V
12 LDIOUT
BLM11P300SPT
5802
2,6V
X2
VCC
13
BLM11A601
1V
G
14 RG2
NC4
15
0,7V
16 RG1
H
# .... for provision only
% ... tolerance 1%
1 2 3
4-2
2835 F13 2841 F8 2847 B4 2853 F7 2859 B2 3801 A2
2836 F15 2842 F9 2848 B3 2854 E6 2860 F6 3802 A2
2837 F15 2843 G4 2849 A2 2855 G1 2861 E4 3803 A4
2838 F8 2844 G1 2850 D3 2856 E1 2862 F1 3804 B4
2839 F8 2845 H2 2851 G8 2857 D3 3201 D1 3805 B2
2840 F8 2846 G4 2852 F6 2858 B2 3800 A2 3806 B2
4 5 6
HF-GAIN&APC CONTROL
HIGH Z = 0dB for CDDA
GCTL HIGH = +12dB for CDRW
LOW = OFF
3840
+2.6V
1,3V SLPSW
10K
FROM PSM CONTROL
VREF
2803 2805
470p 10n
2808 +1.8V
3808
SPout
27K VREF
2804 6.3V 22u
SLD+
330p
SLD-
TR+
TR-
FO+
FO-
+2.6V
100n
2811
4807
4808
AGC 3TENV BDO OFTR
0V
VREF
2821 2822
10n 10n
+HF
+2.6V 3857 3838
2826 2R2 56K
3821
680R
2828 270p
VREF
33p 2861
2829 33p
7805-B
68p
6 3 BC847BS ADPVcc
7811
7805-A
2 BC847BW
5
BC847BS
68K
1,3V
1 4
3823
3816
+2.6V
VREF
22K
3843
SM8613A +2.6V LDRCTL
10K
(1=PLAY,0=SKIP/SEARCH)
GND
8
CHG_PWM
NC2
7
FROM CONTROL PART
LD_PULSE
0V
UP 7402 / PIN62
FLOCK 6
0,3V
DUTYADJ 5
0V
PCK 4
MUTE 3
NC1
2
0,8V
LDISET 1
+2.6V
4 5 6
3807 B5 3813 B5 3819 B1 3825 F9 3833 G4 3840 A4
3808 B4 3814 C15 3820 E3 3826 E15 3834 F4 3841 A3
3809 B4 3815 E3 3821 E5 3827 F8 3836 G2 3842 E5
3810 B1 3816 F5 3822 E3 3828 F8 3837 G4 3843 F5
3811 B2 3817 C11 3823 F6 3829 F7 3838 E6 3844 G7
3812 B2 3818 E3 3824 E7 3830 F8 3839 B4 3845 H7
7 8 9
7802
MN662786SB
ANTISHOCK MEMORY CONTROLLER
21 DVDD2
1,6V
22 SPOUT
0,6V
23 TRVP
0V
IPFLAG
24 TRVM
SMCK
0V
PWMSEL
25 TRP
0V
26 TRM
0V
27 FOP
0V
28 FOM
0V
29 IOVDD1
2,6V
30 TBAL
1,3V
31 FBAL
1,3V
DIGITAL ATTENUATION
32 FE
1,3V
SOFT MUTING
33 TE
DIGITAL FILTER
1,3V
4X OVERSAMP.
34 RFENV
1,3V
35 OFT
0V
36 NRFDET
0V
37 BDO
0V
38 LDON
2,6V
39 ARF
1,3V
40 IREF
1,7V
4815
3824
100K +3.0V
3849
15R
+2.6V A A A
7807
5801
3,5V BC807-25W(COL)
+DRIVE
+3.3V
TO 3801
BLM11A601
SLPSW
2,9V
TO 7801
3846 3856 3847
0V
+2.6V
100K 100K 33K
0V
6 3
3851
2 7808-A 0,6V 5 7808-B
> 800 mVpp
0,6V BC847BS BC847BS
220K
1 4
7 8 9
4-2
3846 H8 3852 E1 4801 A12 4814 C11 6800 A11 7805-A E4
3847 H9 3853 E1 4807 C6 4815 E9 7800 C13 7805-B E4
3848 H6 3854 F1 4808 C6 5800 E2 7801 D2 7807 G7
3849 F9 3855 F5 4810 D2 5801 G8 7802 A11 7808-A H7
3850 A11 3856 H8 4812 A12 5802 G1 7803 E13 7808-B H9
3851 H7 3857 E6 4813 E2 5803 G2 7804 G4 7809 F1
10 11 12
+2.6V +3.3VSW
2,6V
3850
10R
DRAM supply
4801 3,3V
4812 2,6V
6800 2,1V
EXT2 80
1,6V
DVDD1 79
+1.8V
DVSS1 78
X1 77
1801
X2 76
FSEL
2,6V
NTEST 75
+2.6V
CSTCV 16M93
SBCK 74
SUBC 73
2,6V
NCLDCK 72
PMCK
PMCK 71
SPbrk
SPPOL 70
3817
NRST 69 M_nRST
10K
STAT 68 STAT
DMUTE 67
SMCK 66
PWMSEL 65
BLKCK
BLKCK 64
MLD
MLD 63
MDATA
MDATA 62
MCLK
MCLK 61
RIGHT
LEFT
moves outside
eye-pattern signal
3V
not moving
0
TB=0.5µs
10 11 12
7810 D1
7811 E5
13 14 15
A
B
DRAM 16 MBit
3814
10R
C
D
DRAM 16 MBit
E
3826
10R
F
only for provision
FROM/TO CONTROL PART
FROM/TO CONTROL PART G
H
DC Voltages measured in
PLAY-mode, set supplied
V EVM
moves inside
via mains adapter
13 14 15