Akai DVP-4930-KDSM Service Manual
DVD PLAYER
Model:
DVP4930KDSM
SERVICE MANUAL
www.akai.ru
AKAI DV-P4930KDSM
Laser,,
Power connection
Sunplus
8202D
Different signals on
memory card
MPEG BOARD
Photoelectricity
Connection
Fouse loop
principal axis
Central processing unit
Focus, principal
axis drive,
serv,SA5888
DV+5V+/-12V
SA5888
video frequency
signal from
SPHE8202
5.1 Audio signal
from Audio D/A
(R.L.
SR.SL.CN.SW CE
2826
Different signals in
USB
alternating current
REGION FOR POWER SUPPLY
~220V
Power Switch
High voltage
commute,
filtration
low-tension
Diode commute
+12V -12V +5V
VIPER22A,
431
PANEL
LED display Power input 5V
Button on panel
Circuitry for LED display
Digital Signal from MPEG Board,
DATA, STBCK , BCLCK
PORTS AND FUNCTIONS ON MPEG BOARD
4P-USB
7P-Connect with
5.1Ch
6P-MPEG board
power supply
4558
CE2826
24P-different
signals solved by
lens
6P-ports for
principal axis and
servo
5P-ports for
open/close door
SUNPLIS8202D
Software
24C02
MEMORY
SA5
888
16P-memo
ry port
6P-panel
Port
transformer
POWER BOARD
No voltage output
Check the different
voltage ports working
or not.
No
Test 22UF/400V
capacitance, to check its
voltage working or not
No
Is it 220V Power board
have natural voltage?
No Yes
Inspect power
cable and power
switch
No Yes
Replace defective
material
Fuse or filter defective
Inspect Power supply
Yes
Some parts components or filter
defective
Test VIPER22A5-8 to check is it
working or not
No Yes
Circuitry defective, please
inspect 431,VIPER22A
etc
high frequency
defective
wave or not
not
L/R Without voice
Use oscillograph check
4558(1)(7),check is
there wave or not?
No
Check 4558(2)(6) have
No
Check CE2826 （ 25 ）
（26） have wave or
No
Check CE 2826 3.3V
Voltage
Yes
Check
CE2826(5)(6)(7)
have wave or not
Sunplus8202D
defective
AUDIO OUTPUT
Check circuit
4558 Defective
Check power
Capacitance between CE2826 and
4558 defective
Check power supply
CE 2826N defective
Loading...