Sony DVP-PQ2 (serv.man2) Service Manual ▷ View online
6-13
6. Picture is output but audio is not output.
Check the audio data output (at pins-wf, wk, and wl) of AVD
(IC403)
(IC403)
The audio data is not output.
t AVD (IC403) or audio
DAC (IC601) mount is defective or power supply is de-
fective or AVD (IC403) or audio DAC (IC601) is defec-
tive.
fective or AVD (IC403) or audio DAC (IC601) is defec-
tive.
PLL (IC103) 512fs output check
If the frequency or waveform has abnormality.
t The sig-
nal line has defective soldering or the signal line is short-
circuited with other signal lines or PLL (IC103) is defec-
tive.
circuited with other signal lines or PLL (IC103) is defec-
tive.
7. Audio is output but picture is not output.
Observe pins-ej, ek, el, rs, rd and rf of VDAL (IC504)
with an oscilloscope.
If the analog signal is not output.
with an oscilloscope.
If the analog signal is not output.
t The signal line has the
defective soldering or is short-circuited or parts are defective
or VDAL (IC504) is defective.
or VDAL (IC504) is defective.
6-9-2. Drive Auto Adjustment stops due to error.
The ARP & SERVO (IC301) analog circuit of MB-103 board is
defective or RF-Amp (IC201) or M-Driver (IC202) peripheral cir-
cuit is defective or optical pickup block is defective or flat cable
connection is defective
defective or RF-Amp (IC201) or M-Driver (IC202) peripheral cir-
cuit is defective or optical pickup block is defective or flat cable
connection is defective
6-9-3. The product itself is defective.
• If MB-108 does not have any problem,
The board other than MB-108 board is defective or connec-
tion is defective or optical pickup block is defective or mecha-
nism deck is defective
tion is defective or optical pickup block is defective or mecha-
nism deck is defective
6-9-4. Others
• The disc does not rotate even the lid is closed.
t CN950 on
SW406 board is disconnected
• Sometimes playback dose not work.
t FFC loose connection
between CN101 on MB-108 board and CN807 on IF-106 board
1. Power LED does not light after transmitting the
"POWER" on command.
• Check the EVER 3.3V (pin-4), at J2 of the power supply block.
t If voltage is abnormal. t The power supply block is defective.
• Check the P–CONT (pin-1), at CN801 of the IF-106 board.
t
The signal line has the defective soldering or it is short circuited
with other signal lines or capaciton or resistor is defective or
IFCON is defective or connection between the SW-407 board
and the IF-106 board is defective, or connector installation is
defective, or Rest IC is defective.
with other signal lines or capaciton or resistor is defective or
IFCON is defective or connection between the SW-407 board
and the IF-106 board is defective, or connector installation is
defective, or Rest IC is defective.
2. Check PONCHK (pin-9
9
9
9
9
) of IFCON (IC804) on the IF-
106 board.
If it is 0.5 V or more.
t The power supply is defective, or IF-
106 board is defective.
3. Power LED becomes OFF in at once through Power
LED lights in Green once when the POWER button is
pressed.
pressed.
3-1. Check J2 voltage of the power supply block when
the LED lights in green.
If voltage is abnormal.
t The power supply block is defec-
tive, or the IF-106 board is defective, or MB-108 is defective
3-2. Check XFRRST (pin-8
8
8
8
8
) at CN101 on the MB-108
board.
If it is fixed to “L”.
t The signal line has defective solder-
ing, or is short-circuited with other signal lines, or parts are
defective.
defective.
3-3. Check IFBSY (pin-5
5
5
5
5
), XIFCS (pin-6
6
6
6
6
), SI0 (pin-4
4
4
4
4
),
SO0 (pin-1
1
1
1
1
) and SC0 (pin-3
3
3
3
3
) at CN101
If they are fixed to “H” or “L”.
t The signal line has defective soldering, or is short-cir-
cuited with other signal line, or parts are defective, or
SYSCON (IC104) is defective
If they change between “L/H”.
Connector installation is defective, or the IF-95 board is de-
fective, or SYSCON (IC104) is defective.
If they stay in the center voltage.
Poor connection of flexible wiring board such as it is inserted
in an angle diagonally, or defective soldering, or is short-cir-
cuited with other signal line.
t The signal line has defective soldering, or is short-cir-
cuited with other signal line, or parts are defective, or
SYSCON (IC104) is defective
If they change between “L/H”.
Connector installation is defective, or the IF-95 board is de-
fective, or SYSCON (IC104) is defective.
If they stay in the center voltage.
Poor connection of flexible wiring board such as it is inserted
in an angle diagonally, or defective soldering, or is short-cir-
cuited with other signal line.
3-4. Check PONCHK (pin-9
9
9
9
9
) of IFCON (IC804) on the
IF-106 board.
If rise-up time from 0.5 V to 1.5 V or more takes longer time,
or it does not exceed 1.5 V or more.
or it does not exceed 1.5 V or more.
t The IF board is defec-
tive.
4. Both picture and audio are not output.
Connection between the power supply block and the IF-106
board is defective, or connection between the IF-106 board
and the AV-77 board is defective, or connection between the
AV-77 board and the MB-108 board is defective, or connec-
tor installation is defective, or AV-77 board is defective.
board is defective, or connection between the IF-106 board
and the AV-77 board is defective, or connection between the
AV-77 board and the MB-108 board is defective, or connec-
tor installation is defective, or AV-77 board is defective.
5. Picture is not normal. (Block noise or others appear.)
The MB-108 board AVD (IC403) or SDRAM (IC404, IC405)
is defective, or ARP & SERVO (IC301) is defective.
is defective, or ARP & SERVO (IC301) is defective.
7-1
7-1. POWER SUPPLY CHECK
1. SWITCHING REGULATOR
DPSN-20CP (US, CND, MX)
DPSN-20CP-2 (UK, E)
DPSN-20CP-2 (UK, E)
Mode
E-E
Instrument
Digital voltmeter
EVER +3.3 V Check
Test point
J2 pin 9
Specification
3.5 ± 0.2 Vdc
SW +3.3 V Check
Test point
J2 pin 6
Specification
3.3 ± 0.2 Vdc
+5 V Check
Test point
J2 pin q;
Specification
5.0 ± 0.3 Vdc
SW +11 V Check
Test point
J2 pin 4, 5
Specification
11.0 ± 1.0 Vdc
+11 V (AUDIO) Check
Test point
J2 pin qa
Specification
11.0 ± 1.0 Vdc
Checking method:
1) Confirm that each voltage satisfies the specification.
1) Confirm that each voltage satisfies the specification.
! Caution
Never touch the heat sink that is the primary part. It is feared that
you may get an electric shock.
you may get an electric shock.
SECTION 7
ELECTRICAL ADJUSTMENT
DVP-PQ2
In making adjustment, refer to 7-4. 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.
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,
1) Color monitor TV
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-D148A)
6) DVD reference disc
4) Digital voltmeter
5) Standard commander (RMT-D148A)
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
US
: United States model
CND : Canadian model
MX : Mexican model
AE1 : AEP model
AE2 : AEP model
UK
MX : Mexican model
AE1 : AEP model
AE2 : AEP model
UK
: United Kingdom model
7-2
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.
<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.
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
1.00 ± 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 1.00 ± 0.05 Vp-p.
Figure 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.
<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.
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
7-2. ADJUSTMENT OF VIDEO SYSTEM
1. Video Level Adjustment (MB-108 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.
<Purpose>
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
VIDEO OUT connector
(75
(75
Ω terminated)
Instrument
Oscilloscope
Adjusting element
RV401
Specification
1.00 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 RV401 to attain 1.00 Vp-p.
Figure 7-1
+0.04
–0.02
–0.02
A
+0.04
–0.02
–0.02
1.00 Vp-p
+0.04
–0.02
–0.02
1.00 ± 0.05 Vp-p
7-3
7-3. ADJUSTMENT RELATED PARTS ARRANGEMENT
+
VIDEO LEVEL ADJ
IC403
CN201
11
3
RV401
MB-108 BOARD (Side A)
POWER BOARD (Side A)
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