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SERVICE MANUAL
E Model
Chinese Model
D-VE45
PORTABLE VIDEO CD PLAYER
Ver 1.0 2001.07
9-873-215-01
2001G0400-1
© 2001.7
Sony Corporation
Personal Audio Company
Shinagawa Tec Service Manual Production Group
Model Name Using Similar Mechanism
D-E220/E225/E226CK
CD Mechanism Type
CDM-3123EBA
Optical Pick-up Name
DAX-23E
System
Compact disc digital audio/video system
Laser diode properties
Material: GaAlAs
Wavelength:
= 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW (This output
is the value measured at a distance of 200 mm
from the objective lens surface on the optical
pick-up block with 7 mm aperture.)
Error correction
Sony Super Strategy Cross Interleave Reed
Solomon Code
D-A conversion
1-bit quartz time-axis control
Channel number
2 channels
Frequency response
20 - 20,000 Hz +1/2 dB
(measured by JEITA CP-307)
Output (at 4.5 V input level)
Audio output
Output level 0.7 V rms at 47 kilohms
Recommended load impedance over 10
kilohms
Video output
Output level 1 Vp-p at 75 ohms
Recommended load impedance 75 ohms
Headphones (stereo minijack)
Approx. 5 mW + Approx. 5 mW at 16 ohms
SPECIFICATIONS
Power requirements
For the area code of the model you purchased, check
the upper left side of the bar code on the package.
· Two LR6 (size AA) batteries: 3 V DC
· AC power adaptor (DC IN 4.5 V jack):
E13 model: 220 - 230 V, 50/60 Hz
CH model: 220 V, 50 Hz
HK model: 220 V, 50/60 Hz
Battery life * (approx. hours)
(When you use the VIDEO CD player on a flat and
stable surface.)
Playing time varies depending on how the CD
player is used.
VIDEO CD
Audio CD
ESP
ESP
ON
OFF
Two Sony alkaline
2
30
24
batteries LR6SG
* Measured value by the standard of JEITA (Japan
Electronics and Information Technology
Industries Association).
Operating temperature
5°C - 35°C (41°F - 95°F)
Dimensions (w/h/d)
(excluding projecting parts and controls)
Approx. 152.4
× 25.4 × 152.4 mm
Mass (excluding accessories)
Approx. 226 g
Design and specifications are subject to change
without notice.
Supplied accessories
AC power adaptor AC-E455F (1) (E13, EA)
AC power adaptor AC-E455 (1) (CH, HK)
AV cable (1)
Wireless remote commander RMT-DV11 (1)
Earphones MDR-E805LP (1)
Stand (1)
AC plug adaptor (1) (EA)
· Abbreviation
CH
: Chinese model
EA
: Saudi Arabia model
E13
: AC 220 - 230V area in E model
HK
: Hong Kong model
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Flexible Circuit Board Repairing
· 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.
Notes on Chip Component Replacement
· Never reuse a disconnected chip component.
· Notice that the minus side of a tantalum capacitor may be
damaged by heat.
TABLE OF CONTENTS
1. SERVICE NOTE ................................................................. 3
2. GENERAL
Getting Started ......................................................................... 4
3. DISASSEMBLY
3-1. Lid Sub Assy, Upper ........................................................... 6
3-2. Cabinet (Front) Assy ........................................................... 6
3-3. Main Board, MD Assy ........................................................ 7
3-4. Optical Pick-up, Motor ....................................................... 7
4. ELECTRICAL ADJUSTMENTS
4-1. Precautions for Check ......................................................... 8
4-2. Focus Bias Check ................................................................ 8
5. DIAGRAMS
5-1. IC Pin Descriptions ............................................................. 9
5-2. Block Diagram CD Section ........................................... 15
5-3. Block Diagram Video Section ....................................... 16
5-4. Block Diagram Audio Section ...................................... 17
5-5. Block Diagram Power Supply Section .......................... 18
5-6. Printed Wiring Boards Main Section ............................ 20
5-7. Schematic Diagram Main Section (1/3) ........................ 22
5-8. Schematic Diagram Main Section (2/3) ........................ 23
5-9. Schematic Diagram Main Section (3/3) ........................ 24
5-10. IC Block Diagrams ............................................................ 25
6. EXPLODED VIEWS
6-1. Cabinet (Front) Section ..................................................... 28
6-2. Cabinet (Rear) Section ...................................................... 29
6-3. CD Mechanism Deck Section (CDM-3123EBA) ............. 30
6-4. Stand (Set) Section ............................................................ 31
7. ELECTRICAL PARTS LIST ......................................... 32
D-VE45
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 PUBLISHED BY SONY.
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D-VE45
S801
(OPEN)
S801
MAIN BOARD (SIDE B)
TAP802
MAIN BOARD (SIDE A)
SECTION 1
SERVICE NOTE
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electro-
static breakdown because of the potential difference generated by
the charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown 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.
Precautions for Checking Emission of Laser Diode
Laser light of the equipment is focused by the object lens in the
optical pick-up so that the light focuses on the reflection surface
of the disc. Therefore, be sure to keep your eyes more then 30 cm
apart from the object lens when you check the emission of laser
diode.
Before Replacing the Optical Pick-Up Block
Please be sure to check throughly the parameters as par the "Opti-
cal Pick-Up Block Checking Procedures" (Part No.: 9-960-027-
11) issued separately before replacing the optical pick-up block.
Note and specifications required to check are given below.
· FOK output : IC601 eg pin
When checking FOK, remove the lead wire to disc motor.
· RF signal P-to-P value : 0.6 ± 0.2 Vp-p
· The repairing grating holder is impossible.
Laser Diode Checking Methods
During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper lid is closed while turning ON
the S801. (push switch type)
The following two checking methods for the laser diode are
operable.
· Method:
Emission of the laser diode is visually checked.
1. Open the upper lid.
2. With a disc not set, turn on the S801 with a screwdriver having a
thin tip as shown in Fig.1.
or TAP802 is shorted as shown in Fig.2.
Note: Do not push the detection lever strongly, or it may be bent
or damaged.
3. Press the N > button.
4. Observing the objective lens, check that the laser diode emits
light.
When the laser diode does not emit light, automatic power
control circuit or optical pick-up is faulty.
In this operation, the objective lens will move up and down 5
times along with inward motion for the focus search.
Fig. 2
Fig. 1
detection lever
detection lever
main board
S801
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D-VE45
SECTION 2
GENERAL
This section is extracted
from instruction manual.
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D-VE45