Sony DVP-NS305 / DVP-NS310 / DVP-NS315 / DVP-NS405 / DVP-NS410 / DVP-NS415 / HT-1700D Service Manual ▷ View online
6-16
2-3-4. Communication Monitoring Display
The communication state is monitored and displayed while the
key name on the main unit and the remote commander is displayed.
When the communication to the System Controller failed, VIDEO
CD, DVD, and CD segments turn on.
The communication state is monitored and displayed while the
key name on the main unit and the remote commander is displayed.
When the communication to the System Controller failed, VIDEO
CD, DVD, and CD segments turn on.
2-3-5. FLD Anode Test Display and SHUTTLE Click
Operation Test
2-3-5-1. Transition Keys in Self Check Mode
•
Operation Test
2-3-5-1. Transition Keys in Self Check Mode
•
5
key on the remote commander
• SHUTTLE on the remote commander during Anode Test display
(This unit does not provide JOG/SHUTTLE, and therefore use
another DVD remote commander having the JOG/SHUTTLE)
another DVD remote commander having the JOG/SHUTTLE)
2-3-5-2. Operation and Display
The Self Check Mode transits to this mode when
The Self Check Mode transits to this mode when
5
key is en-
tered. This tests whether each segment turns on individually. Only
the first segment of each grid of FLD turns on, and each time the
SHUTTLE is entered, the segment of each grid is switched in or-
der. When SHUTTLE input is clockwise, the segment switches in
1 – 2 – 3 direction, or counterclockwise it switches in 3 – 2 – 1
direction.
the first segment of each grid of FLD turns on, and each time the
SHUTTLE is entered, the segment of each grid is switched in or-
der. When SHUTTLE input is clockwise, the segment switches in
1 – 2 – 3 direction, or counterclockwise it switches in 3 – 2 – 1
direction.
• Display at the start of Anode Test
• Communication error display
(at no input of key and remote commander)
(at no input of key and remote commander)
• Communication error display
(at code display without input of the remote commander)
(at code display without input of the remote commander)
r (Input in CW direction)
6-17
2-3-6. FLD Grid Test Display and SHUTTLE Click Opera-
tion Test
2-3-6-1. Transition Keys in Self Check Mode
•
tion Test
2-3-6-1. Transition Keys in Self Check Mode
•
$
key on the remote commander
• SHUTTLE on the remote commander during Grid Test display
(This unit does not provide JOG/SHUTTLE, and therefore use an-
other DVD remote commander having the JOG/SHUTTLE)
other DVD remote commander having the JOG/SHUTTLE)
2-3-6-2. Operation and Display
The Self Check Mode transits to this mode when
The Self Check Mode transits to this mode when
$
key is entered.
This tests whether each grid turns on individually. The first grid only
of FLD turns on and other grids turn off. Each time the SHUTTLE is
entered, the grid is switched in order. When SHUTTLE input is clock-
wise, the grid switches in 1 – 2 – 3 direction, or counterclockwise it
switches in 3 – 2 – 1 direction.
of FLD turns on and other grids turn off. Each time the SHUTTLE is
entered, the grid is switched in order. When SHUTTLE input is clock-
wise, the grid switches in 1 – 2 – 3 direction, or counterclockwise it
switches in 3 – 2 – 1 direction.
• Display at the start of Grid Test
r (Input in CW direction)
2-3-7. LED Test Display
2-3-7-1. Transition Keys in Self Check Mode
•
2-3-7-1. Transition Keys in Self Check Mode
•
4
key on the remote commander
• SHUTTLE on the remote commander during Grid Test display
(This model does not provide JOG/SHUTTLE, and therefore use
another DVD remote commander having the JOG/SHUTTLE)
another DVD remote commander having the JOG/SHUTTLE)
2-3-7-2. Operation and Display
LED is switched in order by the input of JOG/SHUTTLE on the re-
mote commander. Also, LED ON/OFF is switched by the input of
same key as the function that turns on the LED concerned.
LED is switched in order by the input of JOG/SHUTTLE on the re-
mote commander. Also, LED ON/OFF is switched by the input of
same key as the function that turns on the LED concerned.
• FLD display during LED Test
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ANODE CONNECTION
( 7G-1G)
1G
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6-19
6-11. TROUBLESHOOTING
6-11-1. Cannot Enter Test Mode
You cannot enter the Test mode when either button has been pressed
by any reason with the board assembled in the front panel. In this
state, the power does not turn on even under normal condition (the
unit is kept in standby state), and also no button is active and the
remote commander is not accepted. In this case, disconnect the
MB-103 board and AV-61 board, and with the SELF CHECK (pin
0
by any reason with the board assembled in the front panel. In this
state, the power does not turn on even under normal condition (the
unit is kept in standby state), and also no button is active and the
remote commander is not accepted. In this case, disconnect the
MB-103 board and AV-61 board, and with the SELF CHECK (pin
0
) of IF CON (IC404) on the IF-89 board kept in low state, sup-
ply AC, and the IF CON self-diagnosis mode will be forcibly acti-
vated. The IF CON (IC404) checks the SELF CHECK port only
after the power on reset (only at AC supply, not in standby state).
If any button is pressed, its name is displayed on the fluorescent
display tube. But, if other than “NOTHING” is displayed though
no button is pressed, it means that any button has been pressed.
vated. The IF CON (IC404) checks the SELF CHECK port only
after the power on reset (only at AC supply, not in standby state).
If any button is pressed, its name is displayed on the fluorescent
display tube. But, if other than “NOTHING” is displayed though
no button is pressed, it means that any button has been pressed.
6-11-2. Faults in Test Mode (MB-103 board)
1. The test mode menu is not displayed.
1-1. Board visual check
1-1. Board visual check
Check that the ICs of SYSCON (IC104), ROM (IC106 or
IC107), AVD (IC403), ARP & SERVO (IC301) are working
correctly.
Check that outside appearance of the ICs is normal.
Check that IC pins are not short-circuited.
Check that there is no soldering error.
Check that outside appearance of the capacitors and resistors
is normal.
IC107), AVD (IC403), ARP & SERVO (IC301) are working
correctly.
Check that outside appearance of the ICs is normal.
Check that IC pins are not short-circuited.
Check that there is no soldering error.
Check that outside appearance of the capacitors and resistors
is normal.
1-2. Power supply voltage check
Check the power voltage of the power connector (CN102).
Check the power voltage of SYSCON (IC104).
Check the power voltage of ROM (IC106 or IC107).
Check the power voltage of AVD (IC403).
Check the power voltage of ARP & SERVO (IC301).
If the power voltage has any abnormality
Check the power voltage of SYSCON (IC104).
Check the power voltage of ROM (IC106 or IC107).
Check the power voltage of AVD (IC403).
Check the power voltage of ARP & SERVO (IC301).
If the power voltage has any abnormality
t
Check that the power supply lines are not shorted.
Check that there is no soldering error.
Check that there is no soldering error.
If any abnormality cannot be found still
t
Check that each IC is working normally.
1-3. Clock signal check
Measure the clock signal frequency at CPUCK (CL101) of
SYSCON (IC104) with an oscilloscope.
If the 8.25 MHz signal appears.
SYSCON (IC104) with an oscilloscope.
If the 8.25 MHz signal appears.
t Check the machine ac-
cording to section 1-3-1
If the 33 MHz signal appears.
If the 33 MHz signal appears.
t Check the machine accord-
ing to section 1-3-2.
If other frequencies are output.
If other frequencies are output.
R110 and R113 have defective soldering, X101 crystal os-
cillator is defective.
cillator is defective.
If the measurement point is fixed to either “H” or “L”.
t
Observe XFRRST (pin-uh) of SYSCON (IC104) with an
oscilloscope.
If the measurement point is “L”, check the following items.
oscilloscope.
If the measurement point is “L”, check the following items.
If the IC has defective soldering, if the IC is short-circuited.
If the measurement point is “H”,
If the measurement point is “H”,
t Component X101 or SYSCON (IC104) is defective.
1-3-1. When the 8.25 MHz signal appears at CPUCK
• Check the XRD, XWRH and CS0X signal.
• Check the XRD, XWRH and CS0X signal.
Observe XRD (pin-u;), XWRH (pin-ua), and CS0X (pin-tk)
of SYSCON (IC104) with an oscilloscope.
If these pins are fixed to either “L” (0V) or “H” (3.3V), or if
these pins stay in the center voltage, check the followings.
of SYSCON (IC104) with an oscilloscope.
If these pins are fixed to either “L” (0V) or “H” (3.3V), or if
these pins stay in the center voltage, check the followings.
Check if the signal line does not have the defective solder-
ing.
Check if the signal line is short-circuited with other signal
lines.
If you cannot find any problem
ing.
Check if the signal line is short-circuited with other signal
lines.
If you cannot find any problem
t SYSCON (IC104) is
defective.
• HA [0 to 21] signal and HD [0 to 15] signal check
Observe HA [0 to 21] (pins-<z/x to <z/. , <zzz to <zz, , <zx/ , 1 to 5)
of SYSCON (IC104) and HD [0 to 15] (pins-ig to <z// ) with
an oscilloscope.
If these pins are fixed to either “L” (0V) or “H” (3.3V), or if
the HA pin stays in the center voltage, check the followings.
(HD stays in the center voltage when it is normal.)
of SYSCON (IC104) and HD [0 to 15] (pins-ig to <z// ) with
an oscilloscope.
If these pins are fixed to either “L” (0V) or “H” (3.3V), or if
the HA pin stays in the center voltage, check the followings.
(HD stays in the center voltage when it is normal.)
t Check if the signal line does not have the defective
soldering, or is short-circuited with other signal line or
SYSCON (IC104) is defective.
soldering, or is short-circuited with other signal line or
SYSCON (IC104) is defective.
• Reset signal check
Check if XFRRST (pin-uh) of SYSCON (IC104) normal or
not.
The signal starts up at the same time as Vcc
not.
The signal starts up at the same time as Vcc
t Defective
soldering.
If the trouble does not apply to any of the above-described phe-
nomenon, SYSCON (IC104) or ROM (IC106 or IC107) is defec-
tive.
nomenon, SYSCON (IC104) or ROM (IC106 or IC107) is defec-
tive.
Click on the first or last page to see other DVP-NS305 / DVP-NS310 / DVP-NS315 / DVP-NS405 / DVP-NS410 / DVP-NS415 / HT-1700D service manuals if exist.