DVP-CX995V - Sony DVD Service Manual (repair manual)

US Model

Canadian Model

2005F05-1
© 2007.06

Model Name Using Similar Mechanism

NEW

CD/DVD Mechanism Type

CDM62-DVBU65

Base Unit Name

DVBU65

Optical Traverse Unit Name

DBU-3

 * Manufactured under license from Dolby 

Laboratories. “Dolby,” “Pro Logic,” and the 
double-D symbol are trademarks of Dolby 
Laboratories.

** “DTS” and “DTS Digital Surround” are 

registered trademarks of Digital Theater 
Systems, Inc.

Laser: Semiconductor laser

λ = 780 nm for CD

λ = 650 nm for Super Audio CD and 
DVD
Emission duration: continuous

Signal format system: NTSC

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), CD: 

2 Hz to 20 kHz (

±0.5 dB)

Signal-to-noise ratio (S/N ratio): 115 dB 

(LINE OUT AUDIO L/R 1/2 jacks only)

Harmonic distortion: 0.003 %
Dynamic range: DVD VIDEO/Super Audio 

CD: 103 dB, CD: 99 dB

Wow and flutter: Less than detected value 

(

±0.001% W PEAK)

(Jack name: Jack type/Output level/Load 

impedance)

LINE OUT AUDIO L/R 1/2: Phono jack/

2 Vrms/10 kilohms

DIGITAL OUT (OPTICAL): Optical 

output jack/–18 dBm (wave length: 
660 nm)

DIGITAL OUT (COAXIAL): Phono jack/

0.5 Vp-p/75 ohms

HDMI OUTPUT: TypeA (19 pin)
5.1CH OUTPUT: Phono jack/2 Vrms/

10 kilohms

Phono jack/Y: 1.0 Vp-p/P

B

/C

B

, P

R

/C

R

:

interlace

1)

 = 0.648 Vp-p, progressive or 

interlace

2)

  = 0.7 Vp-p/75 ohms 

1) BLACK LEVEL (COMPONENT 
OUT) is ON 
2) BLACK LEVEL (COMPONENT 
OUT) is OFF

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

120 V AC, 60 Hz

Power consumption: 25 W
Dimensions (approx.): 430 

× 189 × 545 mm 

(17 

× 7 

1

/

2

 

× 21

1

/

2

 in.) (width/height/depth) 

incl. projecting parts

Mass (approx.): 8.6 kg (18 lb 15 oz)
Operating temperature: 5

°C to 35 °C 

(41

°

F to 95

°

F)

Operating humidity: 25 % to 80 %

• Audio/video cord 

(pinplug

× 3 y pinplug × 3) (1)

Specifications and design are subject to 
change without notice.

• Remote commander (remote) (1)

• Size AA (R6) batteries (2)

2

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

• Keep the temperature of the soldering iron around 270 ˚C

during repairing.

• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering

or unsoldering.

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.

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)

Unleaded solder has the following characteristics.

• 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 ˚C.
Caution: The printed pattern (copper foil) may peel away if

the heated tip is applied for too long, so be careful!

• Strong viscosity

Unleaded solder is more viscou-s (sticky, less prone to flow)

than 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.

 0

0

After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.

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.

1. A commercial leakage tester, such as the Simpson 229 or RCA

WT-540A. Follow the manufacturers’ instructions to use these
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” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable.  (See
Fig. A)

1.5 k

Ω

0.15 

µ

F

AC
voltmeter
(0.75 V)

To Exposed Metal
Parts on Set

Earth Ground

0

3

...............................................

4

...................................................................

9

3-1.

Disassembly Flow ........................................................... 10

3-2.

Case ................................................................................. 11

3-3.

MB Board ........................................................................ 11

3-4.

AV Board ......................................................................... 12

3-5.

Bracket (L)/(R) ................................................................ 12

3-6.

Front Panel Section ......................................................... 13

3-7.

Cover (PT)/(CDM) .......................................................... 13

3-8.

DVBU65 Assy ................................................................. 14

3-9.

Switching Regulator ........................................................ 14

3-10. Table (400) Assy .............................................................. 15
3-11. Door Assy, Base (Door) Assy .......................................... 15
3-12. DC Motor (Door) (M603) ............................................... 16
3-13. Holder (Table Sensor 400) ............................................... 16
3-14. D. SENS OUT Board, D. SENS IN Board ...................... 17
3-15. Pop-up (400) Assy ........................................................... 17
3-16. DOOR SW Board ............................................................ 18
3-17. LOCK SW Board, LOADING SW Board ...................... 19
3-18. CD/DVD Mechanism Deck Block

(CDM62-DVBU65) ......................................................... 20

3-19. Motor (400) Assy (Loading) (M602)/(Table) (M601),

LOADING MOTOR Board ............................................. 20

3-20. Optical Traverse Unit (DBU-3) ....................................... 21

.............................................................. 22

....................... 32

......................... 33

7-1.

Block Diagram – SERVO Section – ................................ 38

7-2.

Block Diagram – AUDIO Section – ................................ 39

7-3.

Block Diagram – VIDEO Section – ................................ 40

7-4.

Block Diagram
– PANEL, TABLE, POWER SUPPLY Section – ............ 41

7-5.

Printed Wiring Board – RF TRANSLATION Board – ... 43

7-6.

Printed Wiring Board – MB Board (Side A) – ................ 44

7-7.

Printed Wiring Board – MB Board (Side B) – ................ 45

7-8.

Schematic Diagram – MB Section (1/7) – ...................... 46

7-9.

Schematic Diagram – MB Section (2/7) – ...................... 47

7-10. Schematic Diagram – MB Section (3/7) – ...................... 48
7-11. Schematic Diagram – MB Section (4/7) – ...................... 49
7-12. Schematic Diagram – MB Section (5/7) – ...................... 50
7-13. Schematic Diagram – MB Section (6/7) – ...................... 51
7-14. Schematic Diagram – MB Section (7/7) – ...................... 52
7-15. Schematic Diagram – AV Board (1/5) – .......................... 53
7-16. Schematic Diagram – AV Board (2/5) – .......................... 54
7-17. Schematic Diagram – AV Board (3/5) – .......................... 55
7-18. Schematic Diagram – AV Board (4/5) – .......................... 56
7-19. Schematic Diagram – AV Board (5/5) – .......................... 57
7-20. Printed Wiring Board

– AV Board (Component Side) – ..................................... 58

7-21. Printed Wiring Board

– AV Board (Conductor Side) – ....................................... 59

7-22. Printed Wiring Boards – TABLE Section – ..................... 60
7-23. Schematic Diagram – TABLE Section – ......................... 61
7-24. Printed Wiring Board – DRIVER Board – ...................... 62
7-25. Schematic Diagram – DRIVER Board – ......................... 63
7-26. Printed Wiring Board – PANEL-L Board – ..................... 64
7-27. Schematic Diagram – PANEL-L Board – ....................... 65

7-28. Printed Wiring Boards – PANEL-R Section – ................. 66
7-29. Schematic Diagram – PANEL-R Section – ..................... 67

8-1.

Overall Section ................................................................ 90

8-2.

Front Panel Section ......................................................... 91

8-3.

Power Block Section ....................................................... 92

8-4.

Table Section ................................................................... 93

8-5.

Chassis Section ................................................................ 94

8-6.

Base (Door) Section ........................................................ 95

8-7.

CD/DVD Mechanism Deck Section-1
(Pop-up Block) ................................................................ 96

8-8.

CD/DVD Mechanism Deck Section-2
(Pulley Block) .................................................................. 97

8-9.

CD/DVD Mechanism Deck Section-3
(Lever, Holder Block) ...................................................... 98

8-10. CD/DVD Mechanism Deck Section-4

(Gear, Motor Block) ........................................................ 99

8-11. Base Unit Section (DVBU65) ........................................ 100

............................... 101

4

The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.

The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

New part of flash memory (IC202) on the MB board cannot be
used. Therefore, if the mounted MB board (A-1132-163-A) is
replaced, exchange new flash memory with that used before the
replacement.

When replacing the mounted MB board (A-1132-163-A), since the
adjustment value is not set up correctly, “Drive Auto Adjustment”
in the Test Mode can’t be performed.
In this case, initialize memory in the following procedures.

1. Connect a video monitor to VIDEO LINE OUT jack (J103).
2. Press the [TOP MENU], [CLEAR],

I/

1

keys on the remote

commander (RM-ASP001) in this order with standby status
to enter the Test Mode, then “DIAG START” will be displayed
on the fluorescent indicator tube and the Test Mode Menu
screen will be displayed on the video monitor.

3. Press the [2] key on the remote commander to select the “2.

Drive Manual Operation”.

4. Press the [6] key on the remote commander to select the “6.

Memory Check”.

5. Press the [CLEAR] key on the remote commander to initialize

the memory.

Refer to page 22 for detail of the Test Mode.

When the AV board is replaced by a repair for a fee, throw away the
AV board after obtaining consent of not returning of the AV board
to the customer. When throwing away the AV board, be sure to throw
away after destroying IC600 physically with the hammer etc.

1. Press the

I/

1

button to turn the power on.

2. Press two buttons of

x

and [OPEN/CLOSE] on the main unit

for 5 seconds or more.

The setting method and the releasing method are the same operation.