DOWNLOAD Sony DVP-F41MS Service Manual ↓ Size: 6.71 MB | Pages: 95 in PDF or view online for FREE

Model
DVP-F41MS
Pages
95
Size
6.71 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD
File
dvp-f41ms.pdf
Date

Sony DVP-F41MS Service Manual ▷ View online

6-14
a
f
h
g
e
r
p
n
s
c
m
d
Dp ( 2G~7G )
j
k
b
8G
7G
6G
5G
4G
3G
2G
1G
a
a
a
a
a
a
a
h
h
h
h
h
h
h
j
j
j
j
j
j
j
k
k
k
k
k
k
k
b
b
b
b
b
b
b
f
f
f
f
f
f
f
m
m
m
m
m
m
m
s
s
s
s
s
s
s
g
g
g
g
g
g
g
c
c
c
c
c
c
c
e
e
e
e
e
e
e
n
n
n
n
n
n
n
p
p
p
p
p
p
p
r
r
r
r
r
r
r
d
d
d
d
d
d
d
Dp
Dp
Dp
Dp
Dp
Dp
-
-
-
-
-
-
-
-
-
-
-
-
-
-
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
P17
P18
( 2G~8G )
( 2G~8G )
( Grid )
( Anode )
1G
5G
6G
7G
8G
3G
4G
2G
6-15
5. Grid check (
 button: Grid check mode)
This check mode makes it turn on one grid of the arbitrary grids
of fluorescent display at a time. (All anodes of applicable grid are
turned on.) During this check mode, grid of one somewhere
surely lights up. The 
[CLICK SHUTTLE]
 of remote commander
is used for movement of grid. However, since there is no
[CLICK SHUTTLE]
 in remote commander of supplied accessory,
it can correspond by the remote commander for DVD with
[CLICK SHUTTLE]
.
6. Anode check (
 button: Anode check mode)
This check mode makes it turn on one anode of the arbitrary
anodes of fluorescent display at a time. (Applicable anodes of all
grids are turned on.) If 
[CLICK SHUTTLE]
 is rotated clockwise,
the check will begin from P1 and will move with P2, P3 .... After
the check of the last anode finishes, it returns to P1. During this
check mode, one anode in all grids surely lights up.
The 
[CLICK SHUTTLE]
 of remote commander is used for
movement of anode. However, since there is no
[CLICK SHUTTLE]
 in remote commander of supplied accessory,
it can correspond by the remote commander for DVD with
[CLICK SHUTTLE]
.
7. LED control
Whenever 
[EJECT]
 button is pressed, SUROUND LED (D406)
repeats on and off.
6-11. TROUBLESHOOTING
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 set is kept in standby state), and also no button is
active and the remote commander is not accepted.
2. Power is not Supplied
1
Red LED does not light when AC is supplied (standby)
The power (EVER +5 V) is not supplied.
The X401 does not oscillate.
FTC connecting between FL-123A and MB-99A boards is
faulty.
2
At 
[POWER]
 button ON, LED is kept in red (standby state)
Any button has been pressed.
The voltage at PONCHK (30 pin) of the IF CON exceeds 0.1
V.
3
At 
[POWER]
 button ON, LED lights in green but returns to
red (standby state) after several seconds
The PONCHK (30 pin) of the IF CON is abnormal (slow
rising from 0.1 V to more than 1.5 V, or voltage not rising to
more than 1.5 V).
The SYSTEM CONTROL is faulty.
6-15 E
7-1
SECTION 7
ELECTRICAL ADJUSTMENT
DVP-F41MS
In making adjustment, refer to 7-4. Adjustment
Related Parts Arrangement.
Note:
During diagnostic check, the characters and color bars
can be seen only with the NTSC monitor. Therefore, for
diagnostic check, use the monitor that supports both
NTSC and PAL modes.
Use the reference disc for PAL for check, and use the
reference disc for NTSC for adjustment.
This section describes procedures and instructions necessary for
adjusting electrical circuits in this set.
Instruments required:
1)
Color monitor TV
2)
Single or dual trace oscilloscope, 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
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)
7)
SACD reference disc
HLXA-509 (J-6090-090-A)
8)
Extension Cable (J-6090-107-A)
7-1. POWER SUPPLY CHECK
1. MB-99A Boards
Mode
E-E
Instrument
Digital voltmeter
1
 EVER +3.3 V Check
Test point
JL708
Specification
3.3 
± 0.1 Vdc
2
 SW +3.3 V Check
Test point
JL710
Specification
3.3 
± 0.2 Vdc
3
 +5 V Check
Test point
JL709
Specification
5.0 
± 0.3 Vdc
4
 SW +11 V Check
Test point
JL706, JL707
Specification
10.5 
± 0.5 Vdc
5
 EVER +5 V Check
Test point
JL711
Specification
5.0 
± 0.2 Vdc
6
 SW –11 V Check
Test point
JL705
Specification
–11.0 
± 1.0 Vdc
7
 +1.8 V Check
Test point
JL713
Specification
1.8 
± 0.1 Vdc
Checking method:
1)
Confirm that each voltage satisfies the specification.
A
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.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
S VIDEO OUT (S-C) connector
(75 
Ω terminated)
Instrument
Oscilloscope
Specification
A = 286 
± 30 mVp-p (NTSC)
A = 300 
± 100 mVp-p (PAL)
Checking method:
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” meets the specification.
Figure 7-3
7-3. ADJUSTMENT RELATED PARTS
ARRANGEMENT
MB-99A BOARD (SIDE A)
7-2. ADJUSTMENT OF VIDEO SYSTEM
1. Video Level Adjustment (MB-99A 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.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
LINE OUT (VIDEO) connector
(75 
Ω terminated)
Instrument
Oscilloscope
Adjusting element
RV501
Specification
1.0
+0.04
 Vp-p
–0.02
Adjusting method:
1)
In the test mode initial menu “6” Video Level Adjustment,
set so that color bars are generated.
2)
Adjust the level to 1.0
+0.04
 Vp-p by RV501.
–0.02
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 an S-
terminal cable.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
S VIDEO OUT (S-Y) 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 so that color bars are generated.
2)
Confirm that the S-Y level is 1.0 
± 0.05 Vp-p.
Figure 7-2
1.0      Vp-p
+0.04
–0.02
1.0
±0.05Vp-p
RV501
V-ADJ
7-2 E
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