Sony D-E800, D-E805, D-E705, Discman ESP2 D-E700, Discman ESP2 D-E705 Service Manual
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MICROFILM
SERVICE MANUAL
COMPACT DISC COMPACT PLAYER
US Model
Canadian Model
AEP Model
UK Model
E Model
Austr alian Model
Chinese Model
D-E705/E805
Tourist Model
D-E700/E800
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM-2911DBA
Optical Pick-Up Name DAX-11D
SPECIFICATIONS
D-E700/E705/E800/E805
Photo: D-E705
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: λ = 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 optial 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
Frequency response
20 – 20,000 Hz dB (measured by EIAJ CP-307)
Output (at 4.5 V input level)
Headphones (stereo minijack)
15 mW + 15 mW at 16 ohms
Line output (stereo minijack)
Output level 0.7 V rms at 47 kilohms
Recommended load impedance over 10 kilohms
Optical digital output (optical output connector)
Output level: –21 to –15 dBm
Wavelength: 630 – 690 nm at peak level
General
Power requirements
For the area code of the model you purchased, check the upper left
side of the bar code on the package.
• Two Sony NH-DM2AA Rechargeable batteries: 2.4 V DC
• Two LR6 (size AA) batteries: 3 V DC
• AC power adaptor (DC IN 4.5 V jack):
US, Canadian, E92 model: 120 V, 60 Hz
AEP, French, East European, E13, Chinese model: 220 – 230 V,
50/60 Hz
UK model: 230 – 240 V, 50 Hz
Australian model: 240 V, 50 Hz
Tourist, E33 model: 100 – 240 V, 50/60 Hz
Hong Kong model: 220 V, 50/60 Hz
• Sony DCC-E245 car battery cord for use on car battery: 4.5 V DC
Dimensions (w/h/d) (without projecting parts and controls)
D-E700/E705:
Approx. 131.8 × 23.9 × 142.0 mm
(51/4 × 31/32 × 55/8 in.)
D-E800/E805:
Approx. 131.8 × 23.7 × 142.0 mm
(51/4 × 15/16 × 55/8 in.)
Mass (without rechargeable batteries)
Approx. 210 g (7.4 oz)
Operating temperature
5˚C – 35˚C (41˚F – 95˚F)
+1
–2
– 2 –
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE !
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED
LINE WITH MARK ! 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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
Supplied accessories
For the area code of the model you purchased, check the upper left side
of the bar code on the package.
D-E700/E705
AC power adaptor (1)
Headphones (1)*
1
Earphones with remote control (1)*
2
Rechargeable batteries (2)*
3
Connecting cord (Phono plug × 2 ↔ stereo miniplug) (1)*
4
AC plug adaptor (1)*
5
Battery carryng case (1)*
3
Carrying case (1)
*1Supplied with US model
*2Not supplied with US model
*3Not supplied with US and Canadian models
*4Not supplied with AEP, French, East European, UK and Tourist
models
*5Supplied with Tourist, E33, E13 and Chinese models
D-E800/E805
AC power adaptor (1)
Headphones with remote control (1)*
1
Earphones with remote control (1)*
2
Rechargeable batteries (2)
Connecting cord (Phono plug × 2 ↔ stereo miniplug) (1)*
3
AC plug adaptor (1)*
4
Battery carryng case (1)
Carrying case (1)
*1Supplied with US model
*2Not supplied with US model
*3Not supplied with AEP, UK, French and Tourist models
*4Supplied with Tourist, E33, E13 and Chinese models
Design and specifications are subject to change without notice.
• Abbreviation
E13: 220 – 230 V AC area
E33: 100 – 240 V AC area
E92: 120 V AC area
TABLE OF CONTENTS
1. GENERAL ................................................................... 3
2. SERVICE NOTE ........................................................ 6
3. DISASSEMBLY ......................................................... 7
4. SERVICE MODE...................................................... 8
5. ELECTRICAL ADJUSTMENTS......................... 9
6. DIAGRAMS
6-1. Block Diagram ................................................................ 12
6-2. Printed Wiring Boards..................................................... 14
6-3. Schematic Diagram ......................................................... 17
6-4. IC Pin Function Description ........................................... 29
7. EXPLODED VIEWS ................................................ 31
8. ELECTRICAL PARTS LIST ............................... 34
– 3 –
SECTION 1
GENERAL
This section is extracted from
instruction manual.
– 4 –
– 5 –
– 6 –
SECTION 2
SERVICE NOTE
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic 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.
NOTES ON LASER DIODE EMISSION CHECK
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 objectiv e lens.
Befor Replacing the Optical Pick-Up Block
Please be sure to check thoroughly the parameters as par the “Optical 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: IC501 !™ pin
When checking FOK, remov the lead wire to disc motor.
• S curve P-to-P value: 0.6 - 1.8 Vp-p IC501 #¡ pin
When checking S curve P-to-P value, remove the lead wire to
disc motor.
• RF signal P-to-P value: 0.8 - 1.2 Vp-p
• Traverse signal P-to-P value: 1.2 Vp-p
• The repairing grating holder is impossible.
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.
Laser Diode Checking Methods
During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper panel is closed while turning
ON the S801 (push switch type).
The following two checking methods for the laser diode are operable.
• Method (In the service mode or normal operation):
Emission of the laser diode is visually checked.
1. Open the upper lid.
2. Push the S801 as shown in Fig. 1.
3. Press the ^ key.
4. Check the object lens for confirming normal emission of the
laser diode. If not emitting, there is a trouble in the automatic
power control circuit or the optical pick-up.
During normal operation, the laser diode is turned ON about
2.5 seconds for focus searching.
S801
Fig. 1 Method to push the S801
– 7 –
CABINET (LOWER)
INSTALLATION MAIN BOARD
On installation MAIN board adjust the
S301, 803, 804, and knob (H-R, AVLS).
Note: Follow the disassembly procedure in the numerical order given.
SECTION 3
DISASSEMBLY
1
five screws
(2
×
8)
5
cabinet (lower)
4
two claws
4
two claws
2
Open the battery case lid.
3
two claws
S804
S301
S803
Note:Take care not to allow the rechargeable
battery detection plate to ride on the mold
of the bottom plate.
MAIN board
knob (AVLS)
knob (H-R)
– 8 –
Service Mode (Service program)
The equipment is provided with a service program built in the
microcomputer, like conventional models.
Service program operation methods are described in the following.
SECTION 4
SERVICE MODE
Descriptions in [ ] indicate major operations in the service
mode. For more informatrion, see Step 2.
Fig. 1 Layout of each key
• Step 1 (Service mode setting methods)
1. Turn OFF the HOLD switch with external power supply disconnected (power is not applied to the set).
2. Solder across the TEST terminals (TAP802) (pin %¢, IC801
(TEST) is grounded).
3. Connect an external power supply.
Thus, the set is switched to the service mode.
• Step 2 (Operation in the service mode)
1. Once the service mode is effected, the LCD displays 5 indications each of which is repeatedly displayed.
However , the following operations can be acti vated ev en if LCD
indication is effected.
2. By pressing the + or = key, the optical pick-up is movable inwardly or outwardly . Howev er, if this is acti vated, tracking servo and sled servo are turned OFF, so it can be turned
ON by pressing the PLAY MODE key if required.
3. By pressing the REPEAT/ENTER key, the tracking gain-up
mode becomes active.
4. By pressing the ^ key , focus is turned ON from focus searching while entering CLV-S (draw-in mode).
Without disc, focus searching is repeated continuously.
5. By pressing the PLAY MODE key, tracking servo, sled servo
and CLV-A (servo in PLAY) are turned ON.
6. When 4. an 5. are performed, playing begins. No muting is
ON in the service mode.
7. By pressing the p key, all servos (focus, tracking and sled)
are turned OFF . Ho we v er, the disc motor revolves for a while
by inertia.
• Step 3 (Resetting of service mode)
1. Be sure to disconnect the external power supply and remove
the solder bridge at the TEST terminals connected before in
setting.
2. The set thus becomes available for normal operation.
Fig. 2 Location of Test terminal
– MAIN BOARD– (Side A)
=
(FR)
+
(FF)
^
(PLAY/PAUSE)
p
(STOP)
[
All servos are turned OFF
]
Tracking servo and sled
servo are turned ON
PLAY MODE
REPEAT/ENTER
Tracking gain-up mode
while pressing
Focus is tuned ON to
effect draw-in mode
The optical pick-up
is moved outwardly
The optical pick-up
is moved inwardly
HOLD OFF
n
ON
Be sure to turn OFF
the HOLD switch
(If ON, all the LCD
indication and
LED are light up)
– 9 –
SECTION 5
ELECTRICAL ADJUSTMENTS
Precautions for Adjustment
1. Before beginning adjustment, set the equipment to service
mode.
After the completion of adjustment, be sure to reset the service mode.
For more information, see “Service Mode (service program) ”
on page 8.
2. Perform adjustments in the order given.
3. Use YEDS-18 disc (P art No.: 3-702-101-01) unless otherwise
indicated.
4. Power supply voltage requirement: DC2.5 V in battery terminal
VOLUME knob : Minimum
RESUME switch : OFF
ESP switch : OFF
AVLS switch : NORMAL
HOLD switch : OFF
Before Beginning Adjustment
Set the equipment to service mode (See page 8) and check the
following. If there is an error, repair the equipment.
• Checking of the sled motor
1. Open the upper panel.
2. Press the + and = keys and check that the optical pickup can move smoothly without sluggishness or abnormal noise
in innermost periphery n outermost periphery n innermost
periphery
+ :The optical pick-up moves outwardly.
= :The optical pick-up moves inwardly.
• Checking of focus searching
1. Open the upper panel.
2. Press the ^ key. (Focus searching operation is activated
continuously.)
3. Check the object lens of the optical pick-up for smooth up/
down motion without sluggishness or abnormal noise.
4. Press the p key.
Check that focus searching operation is deactivated. If not,
again press the p key slightly longer.
VCC Adjustment
Adjustment Procedure:
1. Set the equipment to service mode stop state. (See page 8.)
2. Connect the digital voltmeter to TP401 (VCC) of the MAIN
board.
3. Adjust R V401 on the MAIN board so that the reading on digital voltmeter goes 2.75± 0.05 V.
4. After the completion of adjustment, reset service mode. (See
page 8.)
Adjustment Location: MAIN board (See page 11)
digital voltmeter
(DC range)
MAIN board
TP401 (VCC)
(See page 11)
+
–
oscilloscope
(AC range)
+
–
MAIN board
TP522 (RFO)
TP520 (VC)
(See page 11)
2 k
Ω
Focus bias Check
Condition:
• Hold the set in horizontal state.
Check Procedure:
1. Set the equipment to service mode stop state. (See page 8.)
2. Connect the oscilloscope to the test point TP522 (RFO) of the
MAIN board.
3. Move the optical pick-up to the center by pressing the +
and = keys.
4. Put the disc (YEDS-18).
5. Press the ^ key.
From focus searching, focus is turned ON while entering
CLV drawing-in mode. Tracking and sled are turned OFF.
6. Press the PLA Y MODE key . (Both tracking and sled are turned
ON.)
7. Check the oscilloscope waveform is as shown below.
A good eye pattern means that the diamond shape (≈) in the
center of the waveform can be clearly distinguished.
RF SIGNAL REFERENCE W AVEFORM (EYE PA TTERN)
VOLT/DIV : 200 mV (With the 10:1 probe in use)
TIME/DIV : 500 ns
To watch the eye pattern, set the oscilloscope to AC range and
increase the vertical sensitivity of the oscilloscope for easy watching.
8. Stop revolving of the disc motor by pressing the p key.
9. After the completion of adjustment, reset service mode. (See
page 8.)
Check Location: MAIN Board (See page 11.)
RF level
1.0 ± 0.2
V
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