Karaoke Part - Circuit Diagram - Philips MCM8/21 Service Manual

KARAOKE BOARD - CIRCUIT DIAGRAM (For MCD9 only)
1800 B1 2801 C7 2804 B6 2807 C4
1801 B9 2802 B6 2805 B5 2808 B4
2800 B7 2803 C6 2806 A5 2809 B3
1 2
ONLY USED FOR MCD9 VERSION
A
MIC IN
Vref
Mic
1800 4
2
7
1
Mic
B 6
3815
3
5
1K2
TC38-103-61
Mic
C
D
BC847B
BC847B
7803
Mic
E
Note : Some values may varies, see respective parts list for correct value.
1 2
6-13
2810 B3 2813 D5 2816 E3 2819 E6 3802 A3
2811 B2 2814 E4 2817 E2 3800 B5 3803 B9
2812 B2 2815 D4 2818 E7 3801 A3 3804 B8
3 4
+12V_A +12V_A
3802 3801
6K8 4K7
3814
12K
Mic
2812
3
8
100p
5800 2809
3813 3812
2
22u 4
2K2 5K6
22u 50V
Vref
Mic
MIC-ALC
+12V_A
3821
560R 2815
100n
7802
3820 6800
150K
1SS355
Mic
3 4
3805 C7 3808 B6 3811 B4 3814 A2
3806 B6 3809 C6 3812 B3 3815 B1
3807 C6 3810 C4 3813 B2 3816 D5
5 6
Microphone
2806
470n
Mic
7800-A
NJM4560M
2805
1
22u 50V 3800 Vref
3806
20K
12K
2 2804
Mic
22u 50V
Vref 3809
Mic
3810
6K8
270K
2807
47p
3817
1M
BC847B
7801
2813
1u0
Vref
5 6
6-13
3817 D4 3820 D3 3823 E7 6800 D3 7800-B B7
3818 E4 3821 D3 3824 E7 6801 E4 7801 D4
3819 D4 3822 E3 5800 B3 7800-A B4 7802 D2
7 8
+12V_A
+12V_A
5 7800-B
8
NJM4560M
2800 3804
7
1K0
22u 50V
6
4
Mic
2801
470p
3805
Mic
6K8
+12V_A
Mic
7 8
7803 D2
9
A
TO DAC
B
1801
1
MIC_DET
3803
2
+12V
470R
3
MIC_OUT
4
GND_MIC
Mic FE-ST-VK-N
C
D
E
8239_210_97974_01...for 3529 pt4 dd wk0409
9