Circuit Diagram - Karaoke Part - Philips FW-C330 Service Manual

CIRCUIT DIAGRAM - KARAOKE PART

1800 A1 2428 A8 2803 B3 2806 B5 2809 E3
1801 B9 2801 B2 2804 A4 2807 A5 2810 E3
1802 B8 2802 B3 2805 B5 2808 A6 2811 E4
1 2
+KAR
A
1800
TC38 GND_A
4
2
5800
7
22u
1
6
B 3
5
MIC
MIC
C
D
E
BC847B
7802
BC847B
GND_A
1 2
6-3
2812 E5 2815 E7 2818 E7 3801 A2 3804 A4 3807 B4
2813 E5 2816 E7 3423 A9 3802 B2 3805 A3 3808 B5
2814 E6 2817 E7 3800 A2 3803 B3 3806 B4 3809 A5
3 4
SIMPLE KARAOKE
+KAR
2804
3805
1M
470n
4.5V
3803 2802
7800
BC847B
10K
100n
0.7V
0V
2803
1n
GND_A
MIC
VCD
+KAR
6800
3815
7803
150K
1N4148
GND_A GND_A
3 4
3810 A5 3813 C7 3816 E4 3819 E5 3822 E7
3811 B5 3814 E3 3817 E5 3820 E6 3823 D7
3812 B6 3815 E3 3818 E5 3821 E6 3824 E7
5 6
+KAR
7.8V
2808
3810
MIC GND_A
1M
1u
6.6V
2805 3808
7801
BC847B
470R
470n
1.2V
0V
3807 GND_A
RK09D
20K
GND_A
+KAR
2811
3818
3816 1M
100n
5.2V
2812
1K 3820
7804
BC847B
10K 1.2V
1u
0.1V
GND_A
5 6
6-3
5800 B2 7411 A9 7802 E2 7805 E7
6800 E4 7800 B4 7803 E2
6801 E4 7801 B6 7804 E5
7 8
3813
11.9V
7.8V +KAR
470R
GND_A
+KAR
2817
2.3V
680p
2818
3822
1M
100n
2815
3821
7805
BC847B
10K
1u
0.7V
0V
GND_A
7 8
9
MIC DETECT
0V MicDet
(TO SH 130-1)
3423
7411 A
BC847B
10K
0.7V
D
TO COMBI
B
1801
1802
1 1
MIC_DET
2 2
+12V_A
3 3
MIC_SK
4 4
GND A
5 C
MIC_VCD
FE-ST-VK-N FE-ST-VK-N
D
E
SEE VARIANTS TABLE
9