Sony DVP-NS300 Service Manual ▷ View online
6-19
6-19 E
3. Specific item failed in Diag All Check
A mounting failure of IC or faulty IC for that item is doubtful.
If “1901NG” is displayed, a loose connection of CN801, mount-
ing failure of AUDIO DSP (IC701), or faulty IC is doubtful.
If “1901NG” is displayed, a loose connection of CN801, mount-
ing failure of AUDIO DSP (IC701), or faulty IC is doubtful.
4. Picture and sound are not outputted
Check the CN801 for connection, and the flat cable for damage or
loose connection.
loose connection.
5. Picture is outputted, but sound is not outputted
A mounting failure of AUDIO DSP (IC801) or AUDIO DAC
(IC802, IC803), power supply failure, or faulty IC is doubtful.
(IC802, IC803), power supply failure, or faulty IC is doubtful.
6. Sound is outputted, but picture is not outputted
Using an oscilloscope, measure the yd, yh, yl, uf, uj, and i;
pins of AVD (IC503) to check if analog signals are outputted re-
spectively. If not outputted, a soldering failure of that line, a short
with other line, missing capacitor or resistor, or faulty AVD is
doubtful.
pins of AVD (IC503) to check if analog signals are outputted re-
spectively. If not outputted, a soldering failure of that line, a short
with other line, missing capacitor or resistor, or faulty AVD is
doubtful.
6-11-3. Drive Auto Adjustment stops by an error
Faulty analog circuits of ARP&SERVO (IC302) or faulty periph-
eral circuits of DIGITAL SERVO (IC202) on the MB-98 board,
faulty optical pickup, or loose connection of flat cable is doubtful.
eral circuits of DIGITAL SERVO (IC202) on the MB-98 board,
faulty optical pickup, or loose connection of flat cable is doubtful.
6-11-4. Power is Supplied but Unstable
If Syscon Diagnosis completed successfully, basically the boards
other than MB-98 board, connection, optical pickup, or mechani-
cal deck will be faulty.
other than MB-98 board, connection, optical pickup, or mechani-
cal deck will be faulty.
1. Red LED does not light when AC is supplied
Check if the specified voltage is outputted from the EVER
–
11 V
(3 pin), EVER +3.3 V (qa pin), and EVER +11 V (qd pin) of
CN201 or CN920 in the power supply block. If not outputted, the
power supply block will be faulty.
CN201 or CN920 in the power supply block. If not outputted, the
power supply block will be faulty.
2. At
[POWER]
button ON, LED does not light in green
even once, but kept in red (standby state)
Check if the specified voltage is outputted from the EVER
–
11 V
(3 pin), EVER +3.3 V (qa pin), and EVER +11 V (qd pin) of
CN201 or CN920 in the power supply block. If not outputted, the
power supply block will be faulty.
Check the P-CONT (2 pin) of CN401 on the IF-80 board if it
becomes “H”. If not “H”, a soldering failure of that line, a short
with other line, missing capacitor or resistor, faulty AVD (IC503),
loose connection between power supply block and IF-80 board,
loose connection of connectors, faulty power supply block, or faulty
IF-80 board is doubtful.
CN201 or CN920 in the power supply block. If not outputted, the
power supply block will be faulty.
Check the P-CONT (2 pin) of CN401 on the IF-80 board if it
becomes “H”. If not “H”, a soldering failure of that line, a short
with other line, missing capacitor or resistor, faulty AVD (IC503),
loose connection between power supply block and IF-80 board,
loose connection of connectors, faulty power supply block, or faulty
IF-80 board is doubtful.
3. At
[POWER]
button ON, LED lights in green but
returns to red (standby state) after several seconds
(e.g. it returns to standby state after “SONY DVD”
was displayed)
(e.g. it returns to standby state after “SONY DVD”
was displayed)
There is no regularity between faulty parts and timing when the
set returns to the standby state).
Check if the specified voltage is outputted from the power supply
block. If not outputted, the power supply block will be faulty.
Check the XFRRST (9 pin) of CN101 on the MB-98 board if it is
fixed to “L”, or the XIBUSY (0 pin), XIFCS (qa pin), SI0 (qs
pin), SO0 (qd pin) and SC0 (qf pin) of CN101 if they are fixed to
“L” or “H”.
If fixed to “L” or “H”, a soldering failure of that line, a short with
other line, missing capacitor or resistor, or faulty AVD (IC503) is
doubtful.
If not fixed to “L” or “H”, loose connection between power sup-
ply block and IF-80 board or between IF-80 board and MB-98
board, loose connection of connectors, or faulty IF-80 board is
doubtful.
set returns to the standby state).
Check if the specified voltage is outputted from the power supply
block. If not outputted, the power supply block will be faulty.
Check the XFRRST (9 pin) of CN101 on the MB-98 board if it is
fixed to “L”, or the XIBUSY (0 pin), XIFCS (qa pin), SI0 (qs
pin), SO0 (qd pin) and SC0 (qf pin) of CN101 if they are fixed to
“L” or “H”.
If fixed to “L” or “H”, a soldering failure of that line, a short with
other line, missing capacitor or resistor, or faulty AVD (IC503) is
doubtful.
If not fixed to “L” or “H”, loose connection between power sup-
ply block and IF-80 board or between IF-80 board and MB-98
board, loose connection of connectors, or faulty IF-80 board is
doubtful.
4. At
[POWER]
button ON, LED lights in green but
fluorescent display tube does not light
Loose connection between power supply block and IF-80 board,
loose connection of connectors, or faulty IF-80board is doubtful.
loose connection of connectors, or faulty IF-80board is doubtful.
5. Picture and sound are not outputted
Loose connection between power supply block and IF-80 board
or between IF-80 and AV-56 board or between AV-56 board and
MB-98 board, loose connection of connectors, or faulty AV-56
board is doubtful.
or between IF-80 and AV-56 board or between AV-56 board and
MB-98 board, loose connection of connectors, or faulty AV-56
board is doubtful.
6. Picture is out outputted correctly
A mounting failure of BNR (IC601) on the MB-98 board, or faulty
AVD (IC503) or ARP&SERVO (IC302), or faulty 27 MHz output
(frequency, waveform) from 27-1OUT (3 pin) of PLL (IC102) is
doubtful.
AVD (IC503) or ARP&SERVO (IC302), or faulty 27 MHz output
(frequency, waveform) from 27-1OUT (3 pin) of PLL (IC102) is
doubtful.
6-11-5. Power is not Supplied
1. Red LED does not light when AC is supplied
The power (EVER +3.3 V) is not supplied to the IF CON (IC404)
on the IF-80 board.
The X401 does not oscillate.
on the IF-80 board.
The X401 does not oscillate.
2. At
[POWER]
button ON, LED is kept in red
(standby state)
Any button has been pressed.
The voltage at PONCHK (e; pin) of the IF CON (IC404) on the
IF-80 board exceeds 0.5 V.
The voltage at PONCHK (e; pin) of the IF CON (IC404) on the
IF-80 board exceeds 0.5 V.
3. At
[POWER]
button ON, LED lights in green but
returns to red (standby state) after several seconds
The PONCHK (e; pin) of the IF CON (IC404) on the IF-80 board
is abnormal (slow rising from 0.5 V to more than 1.5 V, or voltage
not rising to more than 1.5 V).
The SYSTEM CONTROL (IC103) on the MB-98 board is faulty.
is abnormal (slow rising from 0.5 V to more than 1.5 V, or voltage
not rising to more than 1.5 V).
The SYSTEM CONTROL (IC103) on the MB-98 board is faulty.
7-1
7-1. POWER SUPPLY CHECK
1. HS13S0E/HS13S0F/HS13S0U/TOP-244U Boards
Mode
E-E
Instrument
Digital voltmeter
EVER +3.3 V Check
Test point
CN201 pin qa
Specification
3.5 ± 0.2 Vdc
SW +3.3 V Check
Test point
CN201 pin 8
Specification
3.3 ± 0.2 Vdc
+5 V Check
Test point
CN201 pin qs
Specification
5.0 ± 0.3 Vdc
SW +11 V Check
Test point
CN201 pin 6, 7
Specification
11.5 Vdc
EVER +11 V Check
Test point
CN201 pin qd
Specification
11.0 ± 1.0 Vdc
EVER –11 V Check
Test point
CN201 pin 3
Specification
–11.0 ± 1.0 Vdc
Checking method:
1) Confirm that each voltage satisfies the specification.
1) Confirm that each voltage satisfies the specification.
SECTION 7
ELECTRICAL ADJUSTMENT
DVP-NS300
In making adjustment, refer to 7-3. Adjustment
Related Parts Arrangement.
Related Parts Arrangement.
Note:
During diagnostic check, the characters and color bars can
be seen only with the NTSC monitor. Therefore, for diag-
nostic check, use the monitor that supports both NTSC and
PAL modes.
Use the reference disc for PAL for check, and use the refer-
ence disc for NTSC for adjustment.
be seen only with the NTSC monitor. Therefore, for diag-
nostic check, use the monitor that supports both NTSC and
PAL modes.
Use the reference disc for PAL for check, and use the refer-
ence disc for NTSC for adjustment.
This section describes procedures and instructions necessary for
adjusting electrical circuits in this set.
adjusting electrical circuits in this set.
Instruments required:
1) Color monitor TV
2) Oscilloscope 1 or 2 phenomena, band width over 100 MHz,
2) Oscilloscope 1 or 2 phenomena, band width over 100 MHz,
with delay mode
3) Frequency counter (over 8 digits)
4) Digital voltmeter
5) Standard commander (RMT-D126A/D126E/D126P)
6) DVD reference disc
4) Digital voltmeter
5) Standard commander (RMT-D126A/D126E/D126P)
6) DVD reference disc
HLX-501 (J-6090-071-A) (dual layer) (NTSC)
HLX-503 (J-6090-069-A) (single layer) (NTSC)
HLX-504 (J-6090-088-A) (single layer) (NTSC)
HLX-505 (J-6090-089-A) (dual layer) (NTSC)
HLX-506 (J-6090-077-A) (single layer) (PAL)
HLX-507 (J-6090-078-A)(dual layer) (PAL)
HLX-503 (J-6090-069-A) (single layer) (NTSC)
HLX-504 (J-6090-088-A) (single layer) (NTSC)
HLX-505 (J-6090-089-A) (dual layer) (NTSC)
HLX-506 (J-6090-077-A) (single layer) (PAL)
HLX-507 (J-6090-078-A)(dual layer) (PAL)
7) SACD reference disc
HLXA-509 (J-6090-090-A)
8) Extention Cable (J-6090-107-A)
Abbreviation:
RUS
: Russian
+1.0
–1.5
–1.5
7-2
3. Checking S Video Output S-C
<Purpose>
This checks whether the S-C satisfies the NTSC/PAL Standard. If
it is not correct, the colors will be too dark or light.
This checks whether the S-C satisfies the NTSC/PAL Standard. If
it is not correct, the colors will be too dark or light.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
S VIDEO OUT (S-C) connector
(75
(75
Ω
terminated)
Instrument
Oscilloscope
Specification
A = 286 ± 30 mVp-p (NTSC)
A = 300 ± 100 mVp-p (PAL)
A = 300 ± 100 mVp-p (PAL)
Checking method:
1) In the test mode initial menu “6” Video Level Adjustment, set
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the S-C burst is “A”.
Figure 7-3
4. Checking Component Video Output Y
(Except AEP, UK, RUS Model)
<Purpose>
This checks component video output Y. If it is incorrect, correct
brightness will not be attained when connected to, for instance,
projector.
This checks component video output Y. If it is incorrect, correct
brightness will not be attained when connected to, for instance,
projector.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
COMPONENT VIDEO OUT (Y)
connector (75
connector (75
Ω
terminated)
Instrument
Oscilloscope
Specification
1.0 ± 0.05 Vp-p
Checking method:
1) In the test mode initial menu “6” Video Level Adjustment, set
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the Y level is 1.0 ± 0.05 Vp-p.
Figure 7-4
7-2. ADJUSTMENT OF VIDEO SYSTEM
1. Video Level Adjustment (MB-98 BOARD)
<Purpose>
This adjustment is made to satisfy the NTSC/PAL standard, and if
not adjusted correctly, the brightness will be too large or small.
This adjustment is made to satisfy the NTSC/PAL standard, and if
not adjusted correctly, the brightness will be too large or small.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
LINE OUT (VIDEO) connector
(75
(75
Ω
terminated)
Instrument
Oscilloscope
Adjusting element
RV501
Specification
1.0 Vp-p
Adjusting method:
1) In the test mode initial menu “6” Video Level Adjustment, set
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Adjust the RV501 to attain 1.0 Vp-p.
Figure 7-1
2. Checking S Video Output S-Y
<Purpose>
Check S-terminal video output. If it is incorrect, pictures will not
be displayed correctly in spite of connection to the TV with a S-
terminal cable.
Check S-terminal video output. If it is incorrect, pictures will not
be displayed correctly in spite of connection to the TV with a S-
terminal cable.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
S VIDEO OUT (S-Y) connector
(75
(75
Ω
terminated)
Instrument
Oscilloscope
Specification
1.0 ± 0.05 Vp-p
Checking method:
1) In the test mode initial menu “6” Video Level Adjustment, set
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the S-Y level is 1.0 ± 0.05 Vp-p.
Figure 7-2
+0.04
–0.02
–0.02
+0.04
–0.02
–0.02
1.0 Vp-p
+0.04
–0.02
–0.02
A
1.0 ± 0.05 Vp-p
1.0 ± 0.05 Vp-p
7-3
7. Checking RGB Output R (AEP, UK, RUS Model)
<Purpose>
This checks RGB output R. If it is incorrect, pictures will not be
displayed correctly in spite of connection to the TV with an EURO
AV connecting cord.
This checks RGB output R. If it is incorrect, pictures will not be
displayed correctly in spite of connection to the TV with an EURO
AV connecting cord.
Mode
In test mode,
Push
Push
[0]
for Syscon Diagnosis and
push
[7]
for Video and push
[5]
for
RGB out
Signal
Color bars
Test point
LINE 1 (RGB)-TV connector
pin qg (75
pin qg (75
Ω
terminated)
Instrument
Oscilloscope
Specification
700 ± 50 mVp-p
Checking method:
1) Confirm that the R level is 700 ± 50 mVp-p.
1) Confirm that the R level is 700 ± 50 mVp-p.
Figure 7-7
8. Checking RGB Output G (AEP, UK, RUS Model)
<Purpose>
This checks RGB output G. If it is incorrect, pictures will not be
displayed correctly in spite of connection to the TV with an EURO
AV connecting cord.
This checks RGB output G. If it is incorrect, pictures will not be
displayed correctly in spite of connection to the TV with an EURO
AV connecting cord.
Mode
In test mode,
Push
Push
[0]
for Syscon Diagnosis and
push
[7]
for Video and push
[5]
for
RGB out
Signal
Color bars
Test point
LINE 1 (RGB)-TV connector
pin qa (75
pin qa (75
Ω
terminated)
Instrument
Oscilloscope
Specification
700 ± 50 mVp-p
Checking method:
1) Confirm that the G level is 700 ± 50 mVp-p.
1) Confirm that the G level is 700 ± 50 mVp-p.
Figure 7-8
5. Checking Component Video Output B-Y
(Except AEP, UK, RUS Model)
<Purpose>
This checks component video output B-Y. If it is incorrect, cor-
rect colors will not be displayed when connected to, for instance,
projector.
This checks component video output B-Y. If it is incorrect, cor-
rect colors will not be displayed when connected to, for instance,
projector.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
COMPONENT VIDEO OUT (P
B
)
connector (75
Ω
terminated)
Instrument
Oscilloscope
Specification
700 ± 50 mVp-p
Checking method:
1) In the test mode initial menu “6” Video Level Adjustment, set
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the B-Y level is 700 ± 50 mVp-p.
Figure 7-5
6. Checking Component Video Output R-Y
(Except AEP, UK, RUS Model)
<Purpose>
This checks component video output R-Y. If it is incorrect, cor-
rect colors will not be displayed when connected to, for instance,
projector.
This checks component video output R-Y. If it is incorrect, cor-
rect colors will not be displayed when connected to, for instance,
projector.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
COMPONENT VIDEO OUT (P
R
)
connector (75
Ω
terminated)
Instrument
Oscilloscope
Specification
700 ± 50 mVp-p
Checking method:
1) In the test mode initial menu “6” Video Level Adjustment, set
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the R-Y level is 700 ± 50 mVp-p.
Figure 7-6
700 ± 50 mVp-p
700 ± 50 mVp-p
700 ± 50 mVp-p
700 ± 50 mVp-p
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