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Model
DVP-NW50
Pages
65
Size
7.83 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD
File
dvp-nw50.pdf
Date

Sony DVP-NW50 Service Manual ▷ View online

17
DVP-NW50
SECTION 4
CONFIRMATION OF NETWORK SETTING
1.
Confirmation of LAN Setup of the InWall
Unit 
*
1
 *1 InWall Unit:
• DVP-NW50, AC-NW50
1-1. Use the LAN Setup Diagnostics function of the
InWall Unit.
1. Turn the power on.
The HOME menu appears.
2. Press the “V” SELECT on the HOME Menu, then press the
“SETUP” SELECT.
The Setup Menu appears.
3. Press the “V” SELECT repeatedly until “LAN” appears on
the front panel display.
4. Press the “LAN” SELECT.
The LAN setup Menu appears.
5. Press the “DIAGNOSIS” SELECT.
In ten and several seconds after “DIAGNOSIS” is selected
(display remains unchanged), result of “DIAGNOSIS” is
displayed. Confirm that result of “DIAGNOSIS” is OK.
If it shows NG (No Good), take a remedial action as described
below.
   (1) IP Assign
OK  IP address is assigned correctly.
NG  Illegal address has been assigned.
[Remedial action to take when result of “DIAGNOSIS”
shows NG (No Good)]
Compare the specific InWall Unit with other InWall Units that
are known-to-be-good within the same LAN.
If the other InWall Units that are known-to-be-good within
the same LAN work normally, the Ethernet-related parts of
the NG Unit are suspected to be defective.
   (2) IP Conflict
OK  IP address has no conflict.
NG  Two or more Units are using the same IP address.
[Remedial action to take when result of “DIAGNOSIS”
shows NG (No Good)]
If result of “DIAGNOSIS” shows NG, the IP address of the NG
Unit has conflict with the IP address of other Units or other
equipment.
   To resolve IP address conflict:
1. Set IP ADDRESS Settings of all InWall Units to Auto.
2. When the network equipment that are connected to the same
network as the NG InWall Unit, need to set their IP addresses
statically, perform the followings (such as printer etc.):
If IP address can be changed from the network equipment:
Change the IP address of the network equipment so that the
IP address stays within the static IP region.
If IP address cannot be changed from the network equipment:
Change the Automatic Assignment Region of the router side
by changing the Starting IP Address value and the Maximum
number value of DHCP of the router side so that it does not
have conflict with the InWall Unit.
   (3) Cable Connect
OK  Ethernet cable is inserted normally.
NG  Ethernet cable is not inserted normally.
[Remedial action to take when result of “DIAGNOSIS”
shows NG (No Good)]
Disconnection, un-insertion or loose connection of the Ethernet
cable is probable.
Reconfirm the wiring.
The straight cable of 100 Mbps must be used.
IF result of the LAN Setup Diagnostics function shows OK,
You need not to perform the remaining sections that follow.
18
DVP-NW50
1-2. Verify the LAN Setup of the InWall Unit.
1. Turn the power on.
The HOME menu appears.
2. Press the “V” SELECT on the HOME Menu, then press the
“SETUP” SELECT.
The Setup Menu appears.
3. Press the “V” SELECT repeatedly until “LAN” appears on
the front panel display.
4. Press the “LAN” SELECT.
The LAN setup Menu appears.
5. Press the “IP ADDRESS” SELECT.
The IP address setup Menu appears.
• AUTO: You can acquire the IP address automatically.
Normally, select this setting.
Displayed IP ADDRESS is confirmed.
   [At the use of a Broadband router]
(IP address) 192.168.aaa.bbb 
*
2
(Subnet mask) 255.255.255.000
    *2
The DHCP function of the router side must be effective.
The value of aaa.bbb is decided on the InWall Unit side
automatically.
It doesn’t conflict with another unit similarly set as AUTO
if correctly connected and set.
   [At the use of HUB]
(IP address) 169.254.xxx.yyy 
*
3
(Subnet mask) 255.255.000.000
*3 The value of xxx.yyy is decided on the unit side
automatically.
It doesn’t conflict with another unit similarly set as AUTO
if correctly connected and set.
6. Press “AUTO” or “STATIC” SELECT.
• STATIC: You can set up the IP address manually.
Because some knowledge of networking is required
to use this setting, we recommend you normally to
select “AUTO.”
Set IP ADDRESS is confirmed.
   [At the use of a Broadband router]
(IP address) 192.168.aaa.bbb 
*
4
(Subnet mask) 255.255.255.000
*4 The DHCP function of the router side must be effective.
The value of aaa.bbb is decided on the unit side
automatically.
It doesn’t compete with another unit similarly set as AUTO
if correctly connected and set.
   [At the use of HUB]
Not use with STATIC. Please go with AUTO.
t
 (IP address)
t
 (Subnet mask)
t
 (IP address)
t
 (Subnet mask)
19
DVP-NW50
2.
Confirmation of wiring environment
2-1. Network Wiring patterns
A. Broadband router (4, 8 or 16 port: built-in type) is used.
B. Broadband router + Switching HUB (4, 8 or 16 ports etc.) is
used.
C. Switching HUB is used.
2-2. At the Broadband router use (type A and B)
Confirmation of the Broadband router setup
(Refer to the manual of the router for details.)
 1. Confirmation of the WAN side setup (the Internet side)
• IP Address, Subnet Mask, Gateway
It follows the instruction of the Internet provider.
(Normally, Auto is selected.)
• DNS
It follows the instruction of the Internet provider.
(Normally, Auto is selected.)
 2. Confirmation of the LAN side setup (the InWall network side)
• IP Address, Subnet Mask
The followings are recommended unless otherwise specified.
- IP Address : 192.168.xxx.001 (xxx: It depends on the
router. It is fixation/changeable.)
- Subnet Mask: 255.255.255.000
• DHCP
DHCP should be set to “Valid” unless otherwise specified.
It is one example of the setting related to DHCP
- Starting IP Address : 192.168.xxx.020
- Max number of DHCP  : 100
In this case, the area from 192.168.xxx.002 to 192.168.xxx.019
can be used as the fixed IP region.
The IP Address from 192.168.xxx.020 up to 100 maximum
becomes the automatic assignment region.
2-3. At the both the broadband router and the hub are
used (type B)
[Router setup]
Refer to the above description.
[Hub setup and connection]
Verify connection between router and hub. (For details of connection,
refer to Operating Instruction of the respective equipment)
The connection methods between router and hub are different
depending on the hub type.
1. When a hub has the UpLink dedicated terminal:
Connect a hub to a router using the dedicated terminal. In this
connection configuration, leave the neighboring ports of the
dedicated terminal the blank (unconnected) ports to which any
equipment should not be connected.
(For details, refer to Operating Instruction.)
 2. When a hub has the UpLink ON/OFF selector switch:
Set the UpLink ON/OFF selector switch to ON, and connect a
hub to a router.
3. When a hub does not have the UpLink function:
      Connect a hub to a router using a [Cross-cable] (sex inverted
cable).
(This connection is not recommended because this connection
becomes an exceptional connection since almost all other
connections are performed using the straight cables.)
2-4. Broadband router and hub specifications
Both must support 100 Mbps. (Cables must support 100 Mbps too.)
If a hub that supports only 10BaseT is used, noise occurs in the
playback sound during streaming.
2-5. Verification of the connected equipment
Verify what types of equipment are connected to the LAN other
than the InWall Unit.
PC with [Utility for InWall Unit]
(The InWall system supports only a single unit.)
If any network equipment as listed below, of other types than the
InWall Unit is connected in  the same LAN, 100% guarantee of the
InWall Unit network operation becomes difficult.
Network AV players
PC in which server software controlling contents of the above
players is installed.
20
DVP-NW50
DVD SECTION
AUTO SERVO ADJUSTMENT
After parts related to the servo circuit (RF amplifier , servo control
(U2), motor driver (U4), EEPROM (U6) so on) are replaced, re-
adjusting the servo circuit is necessary.
1. RFOP Level /RF Waveform Check
[TEST DISC]
Use the following test disc on test mode.
TDV-520CSO (DVD-V SL) : Part No. J-2501-236-A
PATD-012 (CD)
: Part No. 4-225-203-01
TCD-W082L (CD-RW)
: Part No. J-2502-063-2
TDV-540C (DVD DL)
: Part No. J-2501-235-A
Connection:
Procedure:
1. Connect an oscilloscope to TP18 (RFOP) and GND on the
DVD SERVO board.
2. Turn the power on.
3. Set the test disc on the tray and press  H  button to playback
the number two track.
4. Confirm that oscilloscope waveform is clear and check RFAC
signal level is correct or not.
Note:
A clear RFAC signal waveform means that the shape “
◊” can be
clearly distinguished at the center of the waveform.
5. Procedure 4 is repeatedly confirmed from procedure 1 with
each TEST DISC.
Note:
TEST DISC (TDV-540CSO), playback the number thirty two track,
too.
SECTION  5
ELECTRICAL ADJSTMENTS
+
TP18 (RFOP)
GND
oscilloscope 
DVD SERVO board
RFAC signal waveform
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level: 0.9 
±
 0.25 Vp-p 
2. Iop (CD) Check
[TEST DISC]
PATD-012(CD)  :Part No. 4-225-203-01
Connection:
Procedure:
1. Connect an digital voltmeter across R38 (10 
Ω) on  the DVD
SERVO board.
2. Turn the power on.
3. Put the test disc (PATD-012) into playback the number two
track.
4. Measure the voltage across  R38 (10 
Ω) on the DVD SERVO
board.
5. Confirm the Iop value is less than 75 mA.
Iop value (mA) = The voltage across R38 (10 
Ω)/10 Ω
3. Iop (DVD) Check
[TEST DISC]
TDV-520SCO (DVD)  :Part No. J-2501-236-A
Connection:
Procedure:
1. Take note of the Iop value that is printed in the bottom of the
label on the rear of the optical pick up.
[D***C***] The last three digits after the character “D”
indicates the Iop value.
2. Connect an digital voltmeter across R37 (10 
Ω) on the DVD
SERVO board
3. Turn the power on.
4. Put the test disc (TDV-520SCO) into playback the number
two track.
5. Measure the voltage across  R37 (10 
Ω) on the DVD SERVO
board.
6. Confirm that the measured value is within specified range of
± 4 mA.
Iop value (mA) = The voltage across R37 (10 
Ω)/10 Ω
digital voltmeter 
R38
DVD SERVO board
+
digital voltmeter 
R37
+
digital voltmeter 
DVD SERVO board
51.9 mA
IDP200A
1154181
D519C674
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