Sony DVP-CX875P Service Manual ▷ View online
6-22
a
f
h
g
e
r
p
n
s
c
col
m
d
Dp
j
k
b
16G
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
P17
P18
ANODE CONNECTION
( 15G~1G )
( 5G,3G )
( 15G,14G,12G~2G )
12G
11G
VCD
DVD
SACD
CD
MP 3
AUDIO
VIDEO
ALL DISCS
SHUFFLE
PROGRESSIVE
REPEAT
1
B
A-
PGM
;
Digital
2G
3G
4G
7G
6G
5G
8G
9G
10G
14G
15G
-
col
col
1G
-
-
-
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
Dp
-
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
Dp
-
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
Dp
Dp
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
-
Dp
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
Dp
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
Dp
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
Dp
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
Dp
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
Dp
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
Dp
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
Dp
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
Dp
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
Dp
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
-
Dp
a
h
j
k
b
f
m
s
g
c
e
n
p
r
d
-
GROUP
MULTI
TITLE
CHAP INDEX
ANGLE
NTSC
DISC
HOUR
MIN
-
-
-
-
-
-
SEC
11G
12G
13G
TRACK
GROUP
TITLE
10G
TRACK
CHAP
9G
DISC
MULTI
8G
INDEX
7G
ANGLE
6G
NTSC
5G
HOUR
4G
3G
MIN
2G
1G
SEC
PROGRESSIVE
VCD
ALL DISCS
SHUFFLE
VIDEO
AUDIO
MP 3
REPEAT 1
PGM A- B
PGM A- B
Digital
;
DVD
CD
SACD
16G
15G
14G
13G
6-23
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-107 board with the SELF CHECK (pin 0) of IF CON (IC106)
on the FR-189 board kept in low state, supply AC, and the IF CON
self-diagnosis mode will be forcibly activated. The IF CON (IC106)
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.
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-107 board with the SELF CHECK (pin 0) of IF CON (IC106)
on the FR-189 board kept in low state, supply AC, and the IF CON
self-diagnosis mode will be forcibly activated. The IF CON (IC106)
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-107 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 (CN101).
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 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 (CL102) of
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. t Check the machine accord-
ing to section 1-3-2.
If other frequencies are output.
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. t Check the machine accord-
ing to section 1-3-2.
If other frequencies are output.
R106 and R107 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 t SYSCON (IC104) is
defective.
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 t Defective
soldering.
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.
6-24
1-3-2.
When the 33 MHz signal appears at CPUCK
• WAIT signal check
Observe XWAIT (pin-yj) of SYSCON (IC104) with an os-
cilloscope.
If it is fixed to “L” (0V). t Observe CS2X to CS5X (pins-
y;
cilloscope.
If it is fixed to “L” (0V). t Observe CS2X to CS5X (pins-
y;
to yd).
If CS2X or CS3X is “L”. t AVD (IC403) has defective sol-
dering or AVD is defective.
If CS4x or CS5X is “L”. t ARP & SERVO (IC301) has
defective soldering or ARP & SERVO is defective.
If any one of the above is not “L”. t XWAIT or CSnX is
short-circuited or has the defective soldering or AVD (IC403)
is defective or ARP & SERVO (IC301) is defective.
Center voltage t The XWAIT line has defective soldering
or is short-circuited or AVD (IC403) is defective or ARP &
SERVO (IC301) is defective or SYSCON (IC104) is defec-
tive.
dering or AVD is defective.
If CS4x or CS5X is “L”. t ARP & SERVO (IC301) has
defective soldering or ARP & SERVO is defective.
If any one of the above is not “L”. t XWAIT or CSnX is
short-circuited or has the defective soldering or AVD (IC403)
is defective or ARP & SERVO (IC301) is defective.
Center voltage t The XWAIT line has defective soldering
or is short-circuited or AVD (IC403) is defective or ARP &
SERVO (IC301) is defective or SYSCON (IC104) is defec-
tive.
• CSnX signal check
Observe CS0X to CS5X (pins-tk to yd) of SYSCON (IC104)
with an oscilloscope.
If they are fixed to “L” (0V) or if to center voltage t Check
that the ICs do not have the defective soldering or is short-
circuited with the other signal lines or SYSCON (IC104) is
defective.
with an oscilloscope.
If they are fixed to “L” (0V) or if to center voltage t Check
that the ICs do not have the defective soldering or is short-
circuited with the other signal lines or SYSCON (IC104) is
defective.
CS0X: ROM (IC106 or IC107)
CS2X, CS3X: AVD (IC403)
CS4X, CS5X: ARP & SERVO (IC301)
CS2X, CS3X: AVD (IC403)
CS4X, CS5X: ARP & SERVO (IC301)
If the trouble symptom does not apply to any of the above phe-
nomenon, SYSCON (IC104) or ROM (IC106 or IC107) is defec-
tive.
nomenon, SYSCON (IC104) or ROM (IC106 or IC107) is defec-
tive.
2. Test mode menu is displayed but the machine stops
when menu is selected
2-1. AVD (IC403) check
when menu is selected
2-1. AVD (IC403) check
Observe SDCLKO (pin-<zxm ) of AVD (IC403) with an oscillo-
scope.
95 MHz t No problem
27 MHz t Observe the XRST, HA, HD, XRD, XWRH INT
and CS signal waveform at the respective pins of AVDEC,
AVD (IC403) is defective.
If the signal is other than the above frequencies t AVD
(IC403) 27MHz signal line (CLKI (pin-<zb, ), SCLKIN (pin-
<zn/
scope.
95 MHz t No problem
27 MHz t Observe the XRST, HA, HD, XRD, XWRH INT
and CS signal waveform at the respective pins of AVDEC,
AVD (IC403) is defective.
If the signal is other than the above frequencies t AVD
(IC403) 27MHz signal line (CLKI (pin-<zb, ), SCLKIN (pin-
<zn/
)) is short-circuited, IC mount is defective, AVD (IC403) is
defective, PLL (IC103) is defective.
2-2. INT signal check
Observe INT0 to 2 (pins-qh to qk) of SYSCON (IC104) with
an oscilloscope.
If they are fixed to “L” (0V) or fixed to the center voltage t
Check that the ICs do not have the defective soldering, or are
short-circuited, SYSCON (IC104) is defective, or the follow-
ing ICs are not defective.
an oscilloscope.
If they are fixed to “L” (0V) or fixed to the center voltage t
Check that the ICs do not have the defective soldering, or are
short-circuited, SYSCON (IC104) is defective, or the follow-
ing ICs are not defective.
INT0: AVD (IC403)
INT1, INT2: ARP & SERVO (IC301)
INT1, INT2: ARP & SERVO (IC301)
2-3. If any abnormality cannot be confirmed by the
above-described checks, check the CS signal that
is currently output.
is currently output.
The CS signal other than CS0X is being output. t IC mount
is defective or the IC is defective depending on the moving
CS signal.
is defective or the IC is defective depending on the moving
CS signal.
CS2X, CS3X: AVD (IC403)
CS4X, CS5X: ARP & SERVO (IC301)
CS4X, CS5X: ARP & SERVO (IC301)
If the trouble is not applicable to any of the above phenomenon,
SYSCON (IC104) or ROM (IC106 or IC107) is defective.
SYSCON (IC104) or ROM (IC106 or IC107) is defective.
3. If the message “SDSP No Ack” appears after the menu
is displayed.
3-1. ARP & SERVO clock signal check
Check frequency of CLKIN (pin-<zb/ )
33 MHz t Normal
Frequency other than 33 MHz t CLKIN is short-circuited
or defective soldering or PLL (IC103) is defective or ARP &
SERVO (IC301) is defective
33 MHz t Normal
Frequency other than 33 MHz t CLKIN is short-circuited
or defective soldering or PLL (IC103) is defective or ARP &
SERVO (IC301) is defective
3-2. ARP & SERVO (IC301) PLL oscillation check
Observe PLCKO (pin-ij) of ARP & SERVO (IC301) with an
oscilloscope.
If the pin is fixed to either “L” (0V) or “H” (3.3V).
oscilloscope.
If the pin is fixed to either “L” (0V) or “H” (3.3V).
If XRST if fixed to “L”. XRST has the defective solder-
ing, In all other cases. ARP & SERVO (IC301) is defec-
tive
ing, In all other cases. ARP & SERVO (IC301) is defec-
tive
If it is oscillating.
HA [0 to 7] are HD [8 to 15] are short-circuited, check
XSDSPIT and XSDSPCS or ARP & SERVO (IC301) is
defective.
XSDSPIT and XSDSPCS or ARP & SERVO (IC301) is
defective.
4. If trouble occurs at the specific item of the “Diag All
Check”.
IC mount of the NG item is defective or IC is defective.
5. Picture and audio are not output.
Check connection of CN601, CN501
Check for the defective connection of flat cable and check of
damage of the flat cable.
Check for the defective connection of flat cable and check of
damage of the flat cable.
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 (IC503) mount is defective or power supply is defec-
tive or AVD (IC403) or audio DAC (IC503) is defective.
DAC (IC503) mount is defective or power supply is defec-
tive or AVD (IC403) or audio DAC (IC503) is defective.
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.
nal line has defective soldering or the signal line is short-
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 VDAC (IC604)
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 VDAC (IC604) is defective.
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 VDAC (IC604) is defective.
6-11-3. Drive Auto Adjustment stops due to error.
The ARP & SERVO (IC301) analog circuit of MB-107 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
6-11-4. The product itself is defective.
• If MB-107 does not have any problem,
• If MB-107 does not have any problem,
The board other than MB-107 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
1. Power LED does not light in Red when the AC power
is turned on.
Check the EVER –11V (pin-1), EVER+5V (pin-5), EVER
+11V (pin-4) voltage of the power supply block CN201.
If voltage is abnormal. t The power supply block is defec-
tive.
+11V (pin-4) voltage of the power supply block CN201.
If voltage is abnormal. t The power supply block is defec-
tive.
6-25
6-25 E
2. Power LED does not light in green after transmitting
the POWER on command. It remains lighting in red (in
the STANDBY mode).
the STANDBY mode).
2-1. Check the EVER -11V (pin-
1
), EVER+5V (pin-
5
),
EVER+11V (pin-
4
) voltage at CN201 of the power
supply block/
If voltage is abnormal. t The power supply block is defec-
tive.
tive.
2-2. Check if the fuse on the power block has blown of
not.
not.
If the fuse has blown t Replace the fuse.
2-3. Check the P-CONT (pin-
9
) at CN103 of the FR-189
board and P-CONT (pin-
6
) at CN301 of the AI-25
board when the POWER button is pressed.
If it remains at “L”,
t The signal line has the defective soldering or it is short-
circuited with other signal lines or capacitor or resistor is de-
fective or IFCON is defective or connection between the power
supply block and the AI-25 board is defective, or connector
installation is defective, or the power supply block is defec-
tive.
t The signal line has the defective soldering or it is short-
circuited with other signal lines or capacitor or resistor is de-
fective or IFCON is defective or connection between the power
supply block and the AI-25 board is defective, or connector
installation is defective, or the power supply block is defec-
tive.
2-4. Check if the button is kept depressed in the IFCON
self mode.
If the button is kept depressed. t The front panel is defec-
tive, or FR-189 board is defective.
tive, or FR-189 board is defective.
2-5. Check PONCHK (pin-
e;
) of IFCON (IC106) on the FR-
189 board.
If it is 0.5 V or more. t The power supply is defective, or
FR-189 board is defective.
FR-189 board is defective.
3. Power LED becomes red (STANDBY mode) in at once
through Power LED lights in Green once when the
POWER button is pressed.
POWER button is pressed.
3-1. Check CN201 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 FR-189 board is defective, or MB-107 is defective
tive, or the FR-189 board is defective, or MB-107 is defective
3-2. Check XFRRST (pin-
2
) at CN103 on the MB-107
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.
ing, or is short-circuited with other signal lines, or parts are
defective.
3-3. Check IFBSY (pin-
3
), XIFCS (pin-
4
), SI0 (pin-
5
),
SO0 (pin-
6
) and SC0 (pin-
7
) at CN103
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 FR-189 board is
defective, 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 FR-189 board is
defective, 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-
e;
) of IFCON (IC106) on the
FR-189 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. t The FR board is de-
fective.
or it does not exceed 1.5 V or more. t The FR board is de-
fective.
4. The LED lights in green but the FL display does not
light when the POWER button is pressed.
Connection between the power supply block and the AI-25
board is defective, or connector installation is defective, or
the FR-189 board is defective.
board is defective, or connector installation is defective, or
the FR-189 board is defective.
5. Both picture and audio are not output.
Connection(s) between the power supply block and the AI-25
board, the AI-25 board and the FR-189 board, the AI-25 board
and AV-66/VD-33 boards, AV-66/VD-33 boards and MB-107
board is/are defective, or connector installation is defective,
or AV-66 and/or VD-33 is/are defective.
board, the AI-25 board and the FR-189 board, the AI-25 board
and AV-66/VD-33 boards, AV-66/VD-33 boards and MB-107
board is/are defective, or connector installation is defective,
or AV-66 and/or VD-33 is/are defective.
6. Picture is not normal. (Block noise or others appear.)
The MB-107 board AVD (IC403) or SDRAM (IC404, IC405)
is defective, or ARP & SERVO (IC301) is defective.
is defective, or ARP & SERVO (IC301) is defective.
Click on the first or last page to see other DVP-CX875P service manuals if exist.