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DVD PLAYER
Model:
DVP4930KDSM
SERVICE MANUAL
www.akai.ru
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AKAI DV-P4930KDSM
MPEG BOARD
Laser,, Power connection
Photoelectricity DV+5V+/-12V
Connection
SA5888
Central processing unit
Sunplus8202D
video frequency
signal from
SPHE8202
5.1 Audio signal
Fouse loop from Audio D/A
(R.L.
principal axis SR.SL.CN.SW CE
2826
Focus, principal Different signals in
axis drive, USB
serv,SA5888
Different signals on
memory card
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REGION FOR POWER SUPPLY
~220V
Power Switch
VIPER22A,
High voltage
commute,
filtration
431
low-tension
alternating current
Diode commute
+12V -12V +5V
PANEL
LED display Power input 5V
Circuitry for LED display
Button on panel Digital Signal from MPEG Board,
DATA, STBCK , BCLCK
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PORTS AND FUNCTIONS ON MPEG BOARD
7P-Connect with
5.1Ch
4558
6P-MPEG board
power supply CE2826
24P-different Software
signals solved by SUNPLIS8202D
lens
6P-ports for
principal axis and
servo 24C02
5P-ports for MEMORY
open/close door SA5
888
16P-memo
ry port
6P-panel 4P-USB
Port
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POWER BOARD
No voltage output
Check the different Some parts components or filter
voltage ports working defective
or not. Yes
No
Test 22UF/400V
capacitance, to check its Test VIPER22A5-8 to check is it
voltage working or not Yes working or not
No No Yes
Is it 220V Power board
have natural voltage? high frequency transformer
Circuitry defective, please defective
inspect 431,VIPER22A
etc
No Yes
Fuse or filter defective
Inspect power
cable and power
switch
No Yes
Replace defective Inspect Power supply
material
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AUDIO OUTPUT
L/R Without voice
Check circuit
Use oscillograph check
4558(1)(7),check is
there wave or not?
No 4558 Defective
Check 4558(2)(6) have
wave or not Check power
No
Capacitance between CE2826 and
Check CE2826 25 4558 defective
26 have wave or
not
No
Check power supply
Check CE 2826 3.3V
Voltage
Yes
Check
CE 2826N defective
CE2826(5)(6)(7)
have wave or not
Sunplus8202D
defective
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MPEG BOARD
No Disc
No
Clean Lens or change lens
Whether lens is ok
Defective
Check +5V power supply
circuit
Ok
Change 24P pair cables
No
Check 24P cables and the plug
for connection working or not
Ok
SA5888 defective
No
Check SA5888
Ok
Sunplus8202D defective
KARAOKE
KRK without sound YES CE 2826 Defective
If have KRK signal ,check YES Capacitance or resistance
CE2826(17)(18) with defective
oscillograph have wave or not
Circuit defective
If have KRK signal, ,check YES
CE2826(1)(7) with oscillograph
have wave or not
Change MIC output
Check Mic working or not
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SD CARD
Memory no function
Yes
No
Check SD card Plug defective or memory
connection defective
Yes
Check F1 inductance No
with 3.3V power Check power supply circuit
supply or not
Yes
Inspect Q3,Q4,A5 audion No
and capacitance and Replace defective component
resistance
Yes
Check 24P cables or No
cables plug working or Cables or plug defective
not
USB FUNCTION
USB no function
Check USB card No Plug defective or USB defective
connection
Yes
Check EC3 with 5V No Check power supply circuit
power supply or not
Yes
Check 4P cables or cables No Cables or plug defective
plug working or not
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VIDEO
No video output
Check Q11 with
ithoscillograph,to Yes C24, C23, C25 short
check whether circuit, L18 open circuit
have wave or not
No
Inspect
Sunplus8202D(193 Inspect circuit between
Yes Sunplus8202D(193) to Q11,to
) to check have
1.2V voltage or not check whether short circuit or
open circuit
No
Sunplus8202D
defective
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1 Top cabinet
2 Mic input
3 Power cable
4 Decoder board
5 Decoder board
6 Bottom board
7 Rubber column
8 MIC Board accessory
9 Rubber column
10 Sanyo Lens
11 USB board
12 Front panel
13 CD tray
14 USB port
15 SD port
16 Power button
17 Power button
18 LED display
19 Power switch
20 Bracket of front panel
21 Power board
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Troubleshooting
No power
Insert AC power plug into the power output
No picture
Make sure the equipment is connected power
Make sure that the input model for TV is Video (AV).
No sound
Make sure the equipment is connected power
Distorted sound
Make sure that the input model for TV and stereo system are correct.
No fast
Forward or fast reverse some discs may have sections that prohibit fast
forward or fast reverse
No operations
Can be performed with
The remote controller
Point the remote control unit at the remote control sensor and operate.
Check the batteries are installed with the correct polarities.
No button operation
Set the POWER button to OFF and then back to ON.
Alternatively, turn off the power, disconnect power plug and then reconnect
it.
No Angle change
This function is dependent on software availability. Even if a disc has a
number of angles recorded, the angles may be recorded for specific scenes
only
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AKAI DV-P4930KDSM
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5 4 3 2 1
CN1
1 L2 FB CN6
close to P+12V
DVCC3 2 L5 FB DVCC3
P-12V 1 P+5V
PLL3.3V 3 CN11
P+5V A+5V
8202 PLL +3.3V L8 FB GND 2 V_V_SYNC 2 L28 FB
4 P+5V 3 V_H_SYNC 2 1
Servo analog +5V L19 FB R82 2.2 5 L1 FB
USB+5V 4 VGND 2 GND
R2 2.2 6
EC16 BC26 BC29 L7 NC GND UART debug Card board power
DVCC3
EC4 BC9 BC13 BC11 BC8 POWER
100u/16V 0.1u 0.1u
470u/16V 0.1u 330p 33p 0.1u
RFGND
RFGND RFGND DVCC CN8
GND
D 1 GND D
RF3.3V CN7
RF +3.3V 2 CARD_WP 2
M+5V
7
5
3
1
Servo MOTOR +5V 1 VGND 3 MS_CLK 2
V_H_SYNC
2 V_H_SYNC 2 4 MS_BS 2
L10 FB RN1 V_V_SYNC
3 V_V_SYNC 2 5 GND
BC27 1K(8P4R)
4 DIS_MODE 5 6 MS_D0 2
BC12
5 SIG_MODE 5 7 MS_D1 2
0.1u CN9
8
6
4
2
6 VGND 8 MS_D2 2
0.1u 1 L22 FB
IR_IN 2 7 CVB1_O 5 9 GND
2 8 R/V_O 5 10 GND
RFGND 3 L23 FB
DVCC 9 G/Y_O 5 11 MS_D3 2
MGND 4 L24 FB
VFD_CLK 2 10 B/U_O 5 12 CARD_SENSE2 2
5 L25 FB
VFD_STB 2 11 AFL 6 13 CARD_SENSE1 2
APLLVCC3 6 L26 FB
VFD_DATA 2 12 VGND 14 CARD_RST 2
DVCC
System +5V 13 AFR 6 15 GND
R111 33 IR/VFD C49 C55 C61 C63
3 mA 16 GND
L14 FB SCART
BC40 33p 33p 33p 33p CARD
EC5 BC5
0.1u
100u/16V 0.1u
GND
GND
GND P+5V
VVCC3
V+5V L21 FB
Video buffer +5V
L3 FB EC25 BC36 R59 R67 R56 R48 R46 R51
260mA F1 4.7K 4.7K 220 220 4.7K 4.7K
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EC2 BC2 220u/16V 100p CN10 FUSE(1206,500mA) P+5V
1 2 CN5
1 USB+5V
220u/16V 0.1u R119 22 1
2 R113 22 USB_DM 2
3 USB_DP 2 2
VGND 3 Q12
4 GND
4 GAME_D0 2 2
VGND USB EC29 C69 C72 5 GAME_CLK
USB_PLL3.3 GAME_D1 2
C R114 R117 6 Q13 2N3906 C
100u/16V NC NC 15K 15K
GAME_LATCH 2
+5AVAA L27 FB GAME
GND 2N3906
L20 FB EC24 BC39 GND GND GND
EC17 100u/16V 0.1u GND GND
GND
100u/16V
GND
AGND
AV3 AV4
VCC3A
Internal DA +3.3V
L31 12 6 COAX COAX 3 AC_C 3
3 6 AC_C 3
R/V_O 1 ASW 1
5 R/V_O 1 6 ASW 1
EC42 BC64
220u/16V 0.1u
P+12V AVCC12
R69 33 2 2
DA_GND 2 2
EC1 EC14
100u/16V 100u/16V 6 AFR AFR 6 6 ASR ASR 6
B/U_O 6 AFR 6
5 B/U_O 4 4 6 AFR 4 4
GND AGND
5 5 5 5
P-12V AVCC-12
R66 33 6 AFL AFL 9 ASL 9
B 9 6 ASL 9 B
G/Y_O 7 AFL 7
5 G/Y_O 7 6 AFL 7
EC3 EC13
100u/16V 100u/16V L29 FB
SD_VCC3
GND AGND P+5V DVCC3 8 8
U2 AMS1085 TO-252 8 8
3 2 L30 FB