Sony DVP-NC685V Service Manual ▷ View online
SERVICE MANUAL
US Model
CD/DVD PLAYER
DVP-NC685V
RMT-D159A
SPECIFICATIONS
System
Laser: Semiconductor laser
Signal format system: NTSC
Signal format system: NTSC
Audio characteristics
Frequency response: DVD VIDEO (PCM
96 kHz): 2 Hz to 44 kHz (44 kHz: –2 dB
±1 dB)/Super Audio CD: 2 Hz to
100 kHz (50 kHz: –3 dB
±1 dB)/Super Audio CD: 2 Hz to
100 kHz (50 kHz: –3 dB
±1 dB)/CD:
2 Hz to 20 kHz (
±0.5 dB)
Signal-to-noise ratio (S/N ratio): 115 dB
(LINE OUT L/R (AUDIO) 1/2 jacks
only)
only)
Harmonic distortion: 0.003 %
Dynamic range: DVD VIDEO/Super Audio
Dynamic range: DVD VIDEO/Super Audio
CD: 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) 1/2: 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
5.1CH OUTPUT: Phono jack/2 Vrms/
10 kilohms
COMPONENT VIDEO OUT(Y, P
B
, P
R
):
Phono jack/Y: 1.0 Vp-p/P
B
, P
R
:
interlace*=0.648 Vp-p, progressive or
interlace**=0.7 Vp-p/75 ohms
interlace**=0.7 Vp-p/75 ohms
*
BLACK LEVEL is ON
** BLACK LEVEL is OFF
LINE OUT (VIDEO) 1/2: Phono jack/
LINE OUT (VIDEO) 1/2: Phono jack/
1.0 Vp-p/75 ohms
S VIDEO OUT 1/2: 4-pin mini DIN/Y:
1.0 Vp-p, C: 0.286 Vp-p/75 ohms
General
Power requirements:
120 V AC, 60 Hz
Power consumption:
19 W
Dimensions (approx.):
430
× 95.5 × 409 mm (17 × 3
6
/
8
× 16
1
/
8
in.) (width/height/depth) incl. projecting
parts
parts
Mass (approx.): 5.0 kg (11
1
/
32
lb)
Operating temperature: 5
°C to 35 °C
(41
°
F to 95
°
F)
Operating humidity: 25 % to 80 %
Supplied accessories
Specifications and design are subject to
change without notice.
change without notice.
Check that you have the following items:
• Audio/video cord
• Audio/video cord
(pinplug
× 3 y pinplug × 3) (1)
• Remote commander (remote) (1)
• Size AA (R6) batteries (2)
• Size AA (R6) batteries (2)
– 2 –
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.
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
µ
F
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground
and from all exposed metal parts to any exposed metal part having
a return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
a return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers' instructions to use these
instruments.
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indica-
tion is 0.75V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2V AC range are suit-
able. (See Fig. A)
tion is 0.75V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2V AC range are suit-
able. (See Fig. A)
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.
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 line cord for cracks and abrasion. Recommend the
replacement of any such line cord to the customer.
6. Check the B+ voltage to see it is at the values specified.
7. Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
Check leakage as described below.
SAFETY CHECK-OUT
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:
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
Service Note ............................................................................ 4
1.
GENERAL
About This Manual ........................................................ 1-1
This Player Can Play the Following Discs .................... 1-1
Notes About the Discs ................................................... 1-1
Index to Parts and Controls .......................................... 1-1
Guide to the Control Menu Display ............................... 1-2
Hookups ........................................................................ 1-3
Playing Discs ................................................................. 1-7
Searching for a Scene ................................................... 1-10
Viewing Information About the Disc .............................. 1-11
Sound Adjustments ....................................................... 1-12
Enjoying Movies ............................................................ 1-14
Using Various Additional Functions .............................. 1-15
Settings and Adjustments ............................................. 1-17
Additional Information ................................................... 1-19
Language Code List ...................................................... 1-20
This Player Can Play the Following Discs .................... 1-1
Notes About the Discs ................................................... 1-1
Index to Parts and Controls .......................................... 1-1
Guide to the Control Menu Display ............................... 1-2
Hookups ........................................................................ 1-3
Playing Discs ................................................................. 1-7
Searching for a Scene ................................................... 1-10
Viewing Information About the Disc .............................. 1-11
Sound Adjustments ....................................................... 1-12
Enjoying Movies ............................................................ 1-14
Using Various Additional Functions .............................. 1-15
Settings and Adjustments ............................................. 1-17
Additional Information ................................................... 1-19
Language Code List ...................................................... 1-20
2.
DISASSEMBLY
2-1.
Disassembly .................................................................. 2-1
2-2.
Upper Case ................................................................... 2-2
2-3.
Power Block ................................................................... 2-2
2-4.
DV-35 Board .................................................................. 2-3
2-5.
Rear Panel Section ....................................................... 2-3
2-6.
AV-74 Board .................................................................. 2-4
2-7.
MB-110 Board ............................................................... 2-4
2-8.
Front Panel Section ....................................................... 2-5
2-9.
Table Assembly ............................................................. 2-5
2-10. Loading Motor Assembly ............................................... 2-6
2-11. Optical Pick-up .............................................................. 2-6
2-12. Internal Views ................................................................ 2-7
2-13. Circuit Boards Location ................................................. 2-8
2-11. Optical Pick-up .............................................................. 2-6
2-12. Internal Views ................................................................ 2-7
2-13. Circuit Boards Location ................................................. 2-8
3.
BLOCK DIAGRAMS
3-1.
Overall Block Diagram ................................................... 3-1
3-2.
RF/Servo Block Diagram ............................................... 3-3
3-3.
Signal Processor Block Diagram .................................. 3-5
3-4.
System Control Block Diagram ..................................... 3-7
3-5.
Video (1) Block Diagram ............................................... 3-9
3-6.
Video (2) Block Diagram ............................................... 3-11
3-7.
Audio (1) Block Diagram ............................................... 3-13
3-8.
Audio (2) Block Diagram ............................................... 3-15
3-9.
Interface Control Block Diagram ................................... 3-17
3-10. Power (1) Block Diagram .............................................. 3-19
3-11. Power (2) Block Diagram .............................................. 3-21
3-11. Power (2) Block Diagram .............................................. 3-21
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
MB-110 (RF AMP, SERVO) Schematic Diagram .......... 4-9
MB-110 (ARP, SERVO DSP) Schematic Diagram ........ 4-11
MB-110 (AV DECODER) Schematic Diagram .............. 4-13
MB-110 (MOTOR DRIVE) Schematic Diagram ............ 4-15
MB-110 (SYSTEM CONTROL) Schematic Diagram .... 4-17
MB-110 (CLOCK GENERATOR)
Schematic Diagram ....................................................... 4-19
MB-110 (I/P CONVERTER) Schematic Diagram ......... 4-21
MB-110 (VIDEO ENCODER) Schematic Diagram ....... 4-23
MB-110 (AUDIO DSP) Schematic Diagram .................. 4-25
MB-110 (8ch DAC) Schematic Diagram ....................... 4-27
MB-110 (RELAY) Schematic Diagram .......................... 4-29
MB-110 (SACD DECODER) Schematic Diagram ........ 4-31
MB-110 (ARP, SERVO DSP) Schematic Diagram ........ 4-11
MB-110 (AV DECODER) Schematic Diagram .............. 4-13
MB-110 (MOTOR DRIVE) Schematic Diagram ............ 4-15
MB-110 (SYSTEM CONTROL) Schematic Diagram .... 4-17
MB-110 (CLOCK GENERATOR)
Schematic Diagram ....................................................... 4-19
MB-110 (I/P CONVERTER) Schematic Diagram ......... 4-21
MB-110 (VIDEO ENCODER) Schematic Diagram ....... 4-23
MB-110 (AUDIO DSP) Schematic Diagram .................. 4-25
MB-110 (8ch DAC) Schematic Diagram ....................... 4-27
MB-110 (RELAY) Schematic Diagram .......................... 4-29
MB-110 (SACD DECODER) Schematic Diagram ........ 4-31
AV-74 Printed Wiring Board .......................................... 4-33
AV-74 (VIDEO BUFFER) Schematic Diagram .............. 4-37
AV-74 (5.1CH AUDIO AMP) Schematic Diagram ......... 4-39
AV-74 (AUDIO AMP) Schematic Diagram .................... 4-41
FR-201 (FUNCTION SWITCH)
Printed Wiring Board and Schematic Diagram ............. 4-43
IF-103 Printed Wiring Board ......................................... 4-45
IF-103 (IF CON) Schematic Diagram ........................... 4-49
DV-35 Printed Wiring Board .......................................... 4-51
DV-35 (CONNECTOR) Schematic Diagram ................. 4-53
SW-396 (FUNCTION SWITCH)
Printed Wiring Board and Schematic Diagram ............. 4-55
PL-33 (LED)
Printed Wiring Board and Schematic Diagram ............. 4-57
MD-94 (MD INTERFACE), SE-130 (SENSOR)
Printed Wiring Boards and Schematic Diagram ........... 4-59
AV-74 (VIDEO BUFFER) Schematic Diagram .............. 4-37
AV-74 (5.1CH AUDIO AMP) Schematic Diagram ......... 4-39
AV-74 (AUDIO AMP) Schematic Diagram .................... 4-41
FR-201 (FUNCTION SWITCH)
Printed Wiring Board and Schematic Diagram ............. 4-43
IF-103 Printed Wiring Board ......................................... 4-45
IF-103 (IF CON) Schematic Diagram ........................... 4-49
DV-35 Printed Wiring Board .......................................... 4-51
DV-35 (CONNECTOR) Schematic Diagram ................. 4-53
SW-396 (FUNCTION SWITCH)
Printed Wiring Board and Schematic Diagram ............. 4-55
PL-33 (LED)
Printed Wiring Board and Schematic Diagram ............. 4-57
MD-94 (MD INTERFACE), SE-130 (SENSOR)
Printed Wiring Boards and Schematic Diagram ........... 4-59
5.
IC PIN FUNCTION DESCRIPTION
5-1.
System Control Pin Function
(MB-110 Board IC104) .................................................. 5-1
(MB-110 Board IC104) .................................................. 5-1
6.
TEST MODE
6-1.
General Description ...................................................... 6-1
6-2.
Starting Test Mode ........................................................ 6-1
6-3.
Syscon Diagnosis .......................................................... 6-1
6-4.
Drive Auto Adjustment .................................................. 6-5
6-5.
Drive Manual Operation ................................................ 6-7
6-6.
Mecha Test Mode .......................................................... 6-11
6-7.
Emergency History ........................................................ 6-11
6-8.
Version Information ....................................................... 6-11
6-9.
Video Level Adjustment ................................................ 6-11
6-10. IF CON Self Diagnostic Function .................................. 6-12
6-11. Troubleshooting ............................................................. 6-19
6-12. Mechanism Test Mode Adjustment ............................... 6-22
6-11. Troubleshooting ............................................................. 6-19
6-12. Mechanism Test Mode Adjustment ............................... 6-22
7.
ELECTRICAL ADJUSTMENT
7-1.
Power Supply Check ..................................................... 7-1
1.
SRV1439UC Board ....................................................... 7-1
7-2.
Adjustment of Video System ......................................... 7-2
1.
Video Level Adjustment (MB-110 Board) ..................... 7-2
2.
Progressive Video Output Level Adjustment
(MB-110 Board) ............................................................. 7-2
(MB-110 Board) ............................................................. 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
7-3.
Adjustment Related Parts Arrangement ....................... 7-4
8.
REPAIR PARTS LIST
8-1.
Exploded Views ............................................................. 8-1
8-1-1. Overall Section ......................................................... 8-1
8-1-2. Front Panel Section .................................................. 8-2
8-1-3. Loading Section ....................................................... 8-3
8-1-4. Chassis Section ....................................................... 8-4
8-1-2. Front Panel Section .................................................. 8-2
8-1-3. Loading Section ....................................................... 8-3
8-1-4. Chassis Section ....................................................... 8-4
8-2.
Electrical Parts List ....................................................... 8-5
– 4 –
C
B
A
Table Ass’y
Plate (guide)
Plate (guide)
Flexible flat cable
(FMS-18: CN002)
(FMS-18: CN002)
A
Two tapping screws
Two tapping screws
Three screws (B3)
SERVICE NOTE
1.
NOTE ON REMOVING THE UPPER CASE
1) Remove the four tapping screws and three screws. (See Fig. 1)
2) Open the sides of case. (See Fig. 1)
3) Remove the upper case in the direction of the arrow A.
2) Open the sides of case. (See Fig. 1)
3) Remove the upper case in the direction of the arrow A.
Fig. 1
Fig. 2
Fig. 3
Fig. 4
2.
DISC REMOVAL PROCEDURE
1) Insert a flat-head (-) screwdriver into a hole at the bottom, and
rotate the cam gear in the direction of the arrow A. (See Fig.2)
3.
NOTE ON REMOVING THE TABLE ASS’Y
1) Remove the two screws. (See Fig. 3)
2) Remove the two Plates (guide) in the direction of the arrows
A
and B.
3) Remove the Table ass’y in the direction of the arrow C.
4) Remove the Flexible flat cable (See Fig. 4).
4) Remove the Flexible flat cable (See Fig. 4).
A
Cam gear
Hole
Table
Screw
(M2.6
(M2.6
×
8)
Screw
(M2.6
(M2.6
×
8)