Memorex MVD4540B Service Manual page 56

A B
8
7
6
5
4
3
2
CAUTION: DIGITAL TRANSISTOR
1
A B
G-15
C
OPERATION/DISPLAY SCHEMATIC DIAGRAM
SEG1 SW
Q664
KRC103SRTK
R674
0 1.9
1G SW 180
Q665
2.0
KTA1504S_Y_RTK
5.2 1.7
SEG2 SW
Q663
4.9
KRC103SRTK
R673
0 0.4
SEG3 SW
180
Q662
4.0
KRC103SRTK
0 0.4
2G SW
Q661
4.0
KTA1504S_Y_RTK
5.2 1.7
4.9
KRC103SRTK
0
R683
560
CAUTION: DIGITAL TRANSISTOR NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
C
D E
(VCR PCB)
V651 CO2D0M3-A
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
R672 R662
180 180
R663
5G SW
SEG4 SW 180
Q651
Q660
KTA1504S_Y_RTK
R670
1.1 1.3
SEG8 SW
SEG5 SW
180
Q655
Q658
4.0 4.9
KRC103SRTK KRC103SRTK
R668 R665
0 1.0 3.5 0
SEG7 SW
3G SW
180 180
Q656
Q659
3.0 0
KTA1504S_Y_RTK KRC103SRTK
R666
5.2 1.7 3.1 0
SEG6 SW
4G SW
180
Q657
Q654
4.9
0
KRC103SRTK KTA1504S_Y_RTK
R667
0 0.4 1.7 5.2
180
4.0 4.9
DVD LED SW
0
Q666
KRA103SRTK
5.2 5.2
W802
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
F G
SEG10 SW
Q652
KRC103SRTK
0.9 0
SEG9 SW
Q653
4.0
KRC103SRTK
0.4 0
4.0
5.2
OS651
PIC-37043LO-H
4.9
REM_IN
Vout 1
0
GND 2
R651
5.1 AT+5.2V
B+ 3
100 1/4W
GND
D656
1N4005-EIC
AT+5.2V
KEY-A
R657 R658 R659
KEY-B
2.7K 1.8K 1.5K
AUDIO SIGNAL(REC)
RECORD COLOR SIGNAL
RECORD LUMINANCE SIGNAL
F G
H
8
7
FROM/TO SYSCON
DVD_LED
VCR_LED
1G/VCR/T-REC_LED
2G/DUB/REC_LED
3G/TV/VCR_LED
4G/VSC_LED
5G/CS/BS_LED
SEG_1
6
SEG_2
SEG_3
SEG_4
SEG_5
SEG_6
SEG_7
SEG_8
SEG_9
SEG_10
REM_IN
KEY-B
KEY-A
5
4
FROM POWER
LEM_VCC
AT+5.2V
GND
3
2
PCB010
VMC300
1
H
G-16