Sony DVP-NS777P Service Manual ▷ View online
SERVICE MANUAL
Chinese Model
CD/DVD PLAYER
DVP-NS777P
RMT-D166P
SPECIFICATIONS
System
Laser: Semiconductor laser
Signal format system: NTSC/PAL (See
Signal format system: NTSC/PAL (See
page 1-3)
Audio characteristics
Frequency response: DVD VIDEO (PCM
96 kHz): 2 Hz to 44 kHz (
±1.0 dB)/DVD
VIDEO (PCM 48 kHz): 2 Hz to 22 kHz
(
(
±0.5 dB)/CD: 2 Hz to 20 kHz (±0.5 dB)
Signal-to-noise ratio (S/N ratio): 115 dB
(LINE OUT L/R (AUDIO) jacks only)
Harmonic distortion: 0.003 %
Dynamic range: DVD VIDEO: 103 dB/CD:
Dynamic range: DVD VIDEO: 103 dB/CD:
99 dB
Wow and flutter: Less than detected value
(
±0.001% W PEAK)
Outputs
(Jack name: Jack type/Output level/Load
impedance)
LINE OUT (AUDIO): Phono jack/2 Vrms/
10 kilohms
DIGITAL OUT (OPTICAL): Optical
output jack/–18 dBm (wave length
660 nm)
660 nm)
DIGITAL OUT (COAXIAL): Phono jack/
0.5 Vp-p/75 ohms
LINE OUT (VIDEO): Phono jack/1.0 Vp-p/
75 ohms
S VIDEO OUT: 4-pin mini DIN/Y:
1.0 Vp-p, C: 0.3 Vp-p (PAL), 0.286 Vp-p
(NTSC)/75 ohms
(NTSC)/75 ohms
COMPONENT VIDEO OUT (Y, P
B
/C
B
,
P
R
/C
R
): Phono jack/Y: 1.0 Vp-p, P
B
/C
B
,
P
R
/
C
R
: 0.7 Vp-p/75 ohms
General
Power requirements:
220 – 240 V AC, 50/60 Hz
Power consumption: 11 W
Dimensions (approx.):
Dimensions (approx.):
430
× 55.5 × 239.3 mm
(width/height/depth) incl. projecting
parts
parts
Mass (approx.): 2 kg
Operating temperature: 5
Operating temperature: 5
°C to 35 °C
Operating humidity: 25 % to 80 %
Supplied accessories
• Audio/Video cord (pinplug × 3 y
pinplug
× 3) (1)
Specifications and design are subject to
change without notice.
change without notice.
• Remote commander (remote) (1)
• Plug adapter
• R6 (size AA) batteries (2)
– 2 –
SAFETY CHECK-OUT
1. Check the area of your repair for unsoldered or poorly-sol-
dered connections. Check the entire board surface for solder
splashes and bridges.
splashes and bridges.
2. Check the interboard wiring to ensure that no wires are
“pinched” or contact high-wattage resistors.
3. Look for unauthorized replacement parts, particularly transis-
tors, that were installed during a previous repair. Point them
out to the customer and recommend their replacement.
out to the customer and recommend their replacement.
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
safety checks before releasing the set to the customer:
4. Look for parts which, though functioning, show obvious signs
of deterioration. Point them out to the customer and recom-
mend their replacement.
mend their replacement.
5. Check the B+ voltage to see it is at the values specified.
WARNING!!
WHEN SERVICING, DO NOT APPROACH THE LASER
EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS
NECESSARY TO CONFIRM LASER BEAM EMISSION,
BE SURE TO OBSERVE FROM A DISTANCE OF
MORE THAN 25 cm FROM THE SURFACE OF THE
OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK.
EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS
NECESSARY TO CONFIRM LASER BEAM EMISSION,
BE SURE TO OBSERVE FROM A DISTANCE OF
MORE THAN 25 cm FROM THE SURFACE OF THE
OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
other than those specified herein may result in hazardous ra-
diation exposure.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED
LINE WITH MARK
0
ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
CAUTION:
The use of optical instrument with this product will increase eye
hazard.
hazard.
Unleaded solder
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40
• Unleaded solder melts at a temperature about 40
°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow) than
ordinary solder so use caution not to let solder bridges occur
such as on IC pins, etc.
ordinary solder so use caution not to let solder bridges occur
such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
also be added to ordinary solder.
– 3 –
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
1.
GENERAL
................................................................... 1-1
2.
DISASSEMBLY
2-1.
Upper Case ................................................................... 2-1
2-2.
Front Panel Assembly ................................................... 2-1
2-3.
Loading Assembly ......................................................... 2-2
2-4.
Optical Device (KHM-310BAA) ..................................... 2-3
2-5.
DC Motor and MS-203 Board ....................................... 2-4
2-6.
MV-044 Board ................................................................ 2-4
2-7.
Switching Regulator ...................................................... 2-5
2-8.
Internal Views ................................................................ 2-6
2-9.
Circuit Boards Location ................................................. 2-7
3.
BLOCK DIAGRAMS
3-1.
Overall Block Diagram ................................................... 3-1
3-2.
RF/Servo Block Diagram ............................................... 3-3
3-3.
System Control/Signal Processor Block Diagram ........ 3-5
3-4.
Video Block Diagram ..................................................... 3-7
3-5.
Audio Block Diagram ..................................................... 3-9
3-6.
Interface Control Block Diagram ................................... 3-11
3-7.
Power 1 Block Diagram ................................................. 3-13
3-8.
Power 2 Block Diagram ................................................. 3-15
4.
PRINTED WIRING BOARDS AND SCHEMATIC
DIAGRAMS
DIAGRAMS
4-1.
Frame Schematic Diagram ............................................ 4-3
4-2.
Printed Wiring Boards and Schematic Diagrams ......... 4-5
MV-044 (RF AMP, SIGNAL PROCESS, SERVO,
MOTOR DRIVE, AVDEC, VIDEO, AUDIO,
PS THROUGH) Printed Wiring Board ........................... 4-5
MV-044 (RF AMP, SERVO, MOTOR DRIVE)
Schematic Diagram ....................................................... 4-9
MV-044 (SIGNAL PROCESS, SERVO DSP, AVDEC)
Schematic Diagram ....................................................... 4-11
MV-044 (VIDEO AMP) Schematic Diagram .................. 4-13
MV-044 (AUDIO AMP) Schematic Diagram .................. 4-15
MV-044 (PS THROUGH) Schematic Diagram .............. 4-17
IF-113 (INTERFACE CONTROL)
Printed Wiring Board ..................................................... 4-21
IF-113 (INTERFACE CONTROL)
Schematic Diagram ....................................................... 4-23
MS-203 (LOADING MOTOR) Printed Wiring Board
and Schematic Diagram ................................................ 4-25
POWER SUPPLY BLOCK (SRV1501WW)
(SWITCHING REGULATOR) Printed Wiring Board ..... 4-27
POWER SUPPLY BLOCK (SRV1501WW)
(SWITCHING REGULATOR) Schematic Diagram ....... 4-29
MV-044 (RF AMP, SIGNAL PROCESS, SERVO,
MOTOR DRIVE, AVDEC, VIDEO, AUDIO,
PS THROUGH) Printed Wiring Board ........................... 4-5
MV-044 (RF AMP, SERVO, MOTOR DRIVE)
Schematic Diagram ....................................................... 4-9
MV-044 (SIGNAL PROCESS, SERVO DSP, AVDEC)
Schematic Diagram ....................................................... 4-11
MV-044 (VIDEO AMP) Schematic Diagram .................. 4-13
MV-044 (AUDIO AMP) Schematic Diagram .................. 4-15
MV-044 (PS THROUGH) Schematic Diagram .............. 4-17
IF-113 (INTERFACE CONTROL)
Printed Wiring Board ..................................................... 4-21
IF-113 (INTERFACE CONTROL)
Schematic Diagram ....................................................... 4-23
MS-203 (LOADING MOTOR) Printed Wiring Board
and Schematic Diagram ................................................ 4-25
POWER SUPPLY BLOCK (SRV1501WW)
(SWITCHING REGULATOR) Printed Wiring Board ..... 4-27
POWER SUPPLY BLOCK (SRV1501WW)
(SWITCHING REGULATOR) Schematic Diagram ....... 4-29
5.
IC PIN FUNCTION DESCRIPTION
5-1.
System Control Pin Function
(MV-044 Board IC201) .................................................. 5-1
(MV-044 Board IC201) .................................................. 5-1
6.
TEST MODE
6-1.
General Description ...................................................... 6-1
6-2.
Starting Test Mode ........................................................ 6-1
6-3.
Drive Manual Operation ................................................ 6-1
6-4.
Mirror Time Adjustment ................................................. 6-1
6-5.
Executing Iop Measurement ......................................... 6-3
6-6.
IF CON Self Diagnostic Function .................................. 6-4
7.
ELECTRICAL ADJUSTMENT
7-1.
Power Supply Check ..................................................... 7-1
1.
Power Supply Block (SRV1501WW)
(Switching Regulator) .................................................... 7-1
(Switching Regulator) .................................................... 7-1
7-2.
Adjustment of Video System ......................................... 7-2
1.
Checking Video Output Level ........................................ 7-2
2.
Checking Progressive Video Output Level ................... 7-2
3.
Checking S Video Output S-Y ....................................... 7-2
4.
Checking S Video Output S-C ....................................... 7-2
5.
Checking Component Video Output Y .......................... 7-3
6.
Checking Component Video Output B-Y ...................... 7-3
7.
Checking Component Video Output R-Y ...................... 7-3
8.
REPAIR PARTS LIST
8-1.
Exploded Views ............................................................. 8-1
8-1-1. Main Section ............................................................. 8-1
8-1-2. Mechanism Deck Section ........................................ 8-2
8-1-2. Mechanism Deck Section ........................................ 8-2
8-2.
Electrical Parts List ....................................................... 8-3
– 4 –
SERVICE NOTE
1. DISC REMOVAL PROCEDURE (at POWER OFF)
1) Open dust cover to access to a hole insert a tapering driver into the aperture of the unit bottom, and move the lever of chuck can in the
direction of the arrow A. (See Fig. 1)
2) Draw out the tray in the direction of the arrow B, and remove a disc. (See Fig. 1)
Fig. 1.
2. Caution Point on the PWB IF-113
CAUTION
When handling IF-113 PWB avoid contact with the sharp metal
edge on the top side of Vacuum Fluorescent Display (ND401).
edge on the top side of Vacuum Fluorescent Display (ND401).
Tray
The lever of a zipper cam
A
B
Hold