30
7.6.
No Output Sound
DVD/CD Play
USB Play
Bluetooth Play
Tuner Mode
HDMI Output
AV Output
Press Power Button
of Unit or Remote Control
to Turn ON the Unit
Check
Main PCB
NG
Press Play
FL Display "Track & Count"
NG
Output Sound
No Problem
Found
OK
OK
OK
DVD/CD Mode
Check CD Mechanism /
Traverse Unit
Press Power Button
of Unit or Remote Control
to Turn ON the Unit
Check Main PCB and
USB P.C.B connection
NG
Insert USB Thumdrive
FL Display "USB"
Press "Play"
NG
Output Sound
No Problem
Found
OK
K
O
K
O
USB Mode
Check USB device
Press Power Button
of Unit or Remote Control
to Turn ON the Unit
Check BT P.C.B on
Main PCB
NG
Press Play
FL Display "BLUETOOTH"
NG
Output Sound
No Problem
Found
OK
OK
OK
Bluetooth Mode
Re-connect Bluetooth
into the Device
Press Power Button
of Unit or Remote Control
to Turn ON the Unit
Check IC52 on
Main PCB
NG
Search for Tuner Signal
NG
Output Sound
No Problem
Found
OK
OK
OK
FM/AM Mode
Check FM Antenna
Wire Connection
Plug 1 side HDMI terminal of
HDMI cable to VKX65/25 HDMI
output jack & plug the other
side HDMI terminal of HDMI
cable to HDMI Jack's TV
searching for video
& audio data
Note :
1. VKX65/25 in any mode
2. TV in HDMI mode
OK
NG
PW_+5VDVD
[refer to check point ]
10
NG
Change Back-End
PCB
OK
Output Video &
Sound
Note :
1. Choose "TV mode" at TV to make
sound come out from TV
2. Choose "Home Theater Mode" to
make sound come out from VKX65/25
speaker
Plug 1 side HDMI terminal of
HDMI cable to VKX65/25 HDMI
output jack & plug the other
side HDMI terminal of HDMI
cable to HDMI Jack's TV
Note :
1. VKX65/25 in any mode
2. TV in AV mode
searching for video
& audio data
OK
NG
PW_+5VDVD
[refer to check point ]
10
NG
Change Back-End
PCB
OK
Output Video &
Sound
Note :
1. Choose "TV mode" at TV to make
sound come out from TV
2. Choose "Home Theater Mode" to
make sound come out from VKX65/25
speaker
Checking Points:
1) IC4001 (DSP IC) pin 4 (I/P) & pin 27
-
30 (O/P) PWM signal
2) IC4001 (DSP IC) pin 41/42 for OSC signal
3) IC4803 pin 43 (BCK), 44 (WCK), 45 (SCDO)
4) IC6000 (Power Amplifier) I/P (pin5,6,14,15) and O/P pins (32,35,39,40)
5) IC6000 pin 30/31/36/37 for
+
32V, pin 1/2/22 for
+
12V
Summary of Contents for SA-VKX25EE
Page 5: ...5 1 4 Caution For AC Cord For GS only Figure 1 3 ...
Page 12: ...12 5 Location of Controls and Components 5 1 Remote Control Key Button Operation ...
Page 13: ...13 5 2 Main Unit Key Button Operation ...
Page 14: ...14 6 Service Mode 6 1 Service Mode Table 6 2 Sales Demonstration Lock Function ...
Page 19: ...19 6 5 Self Diagnostic Mode 6 5 1 Self Diagnostic Mode Table 1 For DVD Module ...
Page 20: ...20 6 5 2 Self Diagnostic Mode Table 2 For DVD Module ...
Page 21: ...21 6 5 3 Self Diagnostic Mode Table 3 For DVD Module ...
Page 33: ...33 BACK END PCB 7 5 9 FP8101 Pin 5 Pin 7 Pin 9 Pin 11 5V 10 11 ...
Page 35: ...35 8 3 Main Components and P C B Locations ...
Page 44: ...44 ...
Page 54: ...54 ...
Page 56: ...56 ...
Page 78: ...78 ...
Page 86: ...86 ...
Page 90: ...90 ...