Operation - Durabrand DBV4403 Service Manual

A B
8
7
REW/REV
SW607_3
SKQNAED010
PLAY
SW606_3
SKQNAED010
6
FF/CUE
SW605_3
SKQNAED010
REC/OTR
SW604_3
SKQNAED010
5
STOP/EJECT
SW603_3
SKQNAED010
POWER
SW608_3
SKQNAED010
CH DOWN CH UP
4
SW602_3 SW601_3
SKQNAED010 SKQNAED010
3
2
1
A B
G-7
C D
OPERATION SCHEMATIC DIAGRAM
CP601 CD651 CP651
B2013H02-3P A2001WV2-3P
CU230701
KEY-A
KEY-A 3 3
KEY-B 2 2
KEY-B
1 1 GND
GND
PCB270
VEA958
NOTE:
THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
C D
E
(SYSCON PCB)
560 1/4W
W838 W857
OS651
PIC-37043LO
Vout 1
GND 2
W840
B+ 3
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
E
F G
R658
1G/TV/VCR_LED
R659
2G/T-REC_LED
560 1/4W
R660
3G/REC_LED
560 1/4W R657
560 1/4W
REM_IN
(SYS_GND)
KEY-B
KEY-A
F G
H
8
7
6
FROM/TO SYSCON/SERVO
1G/TV/VCR_LED
2G/T-REC_LED
3G/REC_LED
REM_IN
5
KEY-B
KEY-A
FROM POWER
P.CON+5V
4
AT+5.2V
GND
3
2
PCB010
VMA224
1
H
G-8