Sony MZE-35 Service manual
MZ-E35
SERVICE MANUAL
US and foreign patents licensed from Dolby
Laboratories Licensing Corporation.
SPECIFICATIONS
US Model
AEP Model
UK Model
E Model
Model Name Using Similar Mechanism NEW
MD Mechanism Type MT-MZE35-140
Optical Pick-up Type ODX-1B
MICROFILM
PORTABLE MINIDISC PLAYER
TABLE OF CONTENTS
SERVICING NOTES
1. GENERAL ................................................................... 3
2. DISASSEMBLY ......................................................... 5
3. TEST MODE.............................................................. 8
4. ELECTRICAL ADJUSTMENTS......................... 11
5. DIAGRAMS
5-1. Block Diagram ................................................................ 13
5-2. Printed Wiring Board
(US, Hong Kong Model)................................................. 15
5-3. Printed Wiring Board
(AEP, UK, E, French Model) .......................................... 19
5-4. Schematic Diagram ......................................................... 21
5-5. IC Pin Function Description ........................................... 30
6. EXPLODED VIEWS ................................................33
7. ELECTRICAL PARTS LIST ............................... 35
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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
This MiniDisc player is classified as a CLASS 1
LASER product.
The CLASS 1 LASER PRODUCT label is located
on the bottom exterior.
– 2 –
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.
SECTION 1
GENERAL
This section is extracted from
instruction manual.
– 3 –
– 4 –
SECTION 3
TEST MODE
General
• In the TEST mode, this set provides the Auto mode in which
both CD and MO are adjusted automatically. In the Auto mode,
whether a disc is CD or MO is discriminated, then each
adjsutment is automatically executed sequentially. If a fault is
found, it is displayed. Also, in the Servo mode, eac h item can be
adjusted automatically.
Entering TEST Mode
Bridge the T AP801 (TEST) on MAIN boar d (connect IC801 #™ to
GND), and turn the power on.
Then, press ( key and the TEST mode is activated.
Releasing TEST Mode
Turn the power off, and remove the bridge from TAP801 (TEST)
on MAIN board.
Operation in TEST Mode
In the TEST mode, the LCD display is as shown below:
300
Main unit LCD
300 V3.000
Remote controller LCD
• ROM version display → All ON → All OFF are repeated.
• To hold the display for confirmation, press the PLAY MODE
key.
ROM version
display (Ver3.00
or Ver3.20)
Configuration of TEST Mode
The TEST mode configuration of this set is as follows:
+key
p
key
–key
p
key
Display in TEST Mode
AUTO Mode
(Auto?)
MANUAL
Mode
(Manu?)
(
key
(Start?)
p
key
(
key
p
key
SERVO Mode
0 0 0
+,
–
key
AUDIO Mode
1 0 0
+,
–
key
POWER Mode
( ) for Remote controller LCD display
3 0 0
SERVO Mode
• Enter the TEST mode, press VOL − key and ( key to select
the SERVO mode.
• When the second digit of mode number is not 0 and the first
digit is 0 (010, 020, 030, etc.), the optical pickup moves to outside track or inside track with + key or = key respectively.
• To select other modes, refer to the TEST mode configuration.
1. Configuration of SERVO Mode
SERVO Mode
(
key
0 0 0
key
–
+,
p
key
OFFSET Adj.
(
0 1 0
Each time (key is pressed,
011-013
are switched. (For each
p
key
mode, see relevant table)
p
key
LASER
POWER Adj.
(
0 2 0
Each time
ed,
p
key
+,–key +,–key
p
key
MO Adj.
021-024
are switched. (For each
mode, see relevant table)
(
0 3 0
Each time
ed,
p
key
031-039
are switched. (For each
mode, see relevant table)
123
key
key
key
modes
(
key
(
key is press-
modes
(
key
(
key is press-
modes
(
key
– 8 –
(To page 9 )
(To page 8 )
2. Description of Each Mode
123
p
key
LOW REF CD Adj.
0 4 0
p
+,–key+,–key+,–key+,–key
p
key
CD Adj.
Each time (key is
pressed,
modes are switched.
key
(For each mode, see
relevant table)
0 5 0
Each time (key is
pressed,
p
p
key
SLED Move
0 6 0
p
p
key
AUTO Adj.
modes are switched.
key
(For each mode, see
relevant table)
Each time (key is
pressed,
modes are switched.
key
(For each mode, see
relevant table)
0 7 0
p
key
p
key
NV
0 9 0
Each time (key is
pressed,
p
+,–key
Return to OFFSET Adj.
modes are switched.
key
(For each mode, see
relevant table)
(
key
041-048
(
key
(
key
051-058
(
key
(
key
061
and
062
(
key
(
key
Each time (key is
pressed,
modes are switched.
(For each mode, see
relevant table)
(
071-074
key
(
key
091-093
(
key
(
010
)
010 Offset Adjustment
Mode Description
011 Focus error offset
012 Tracking error offset
013 All servo ON
020 Laser Power Adjustment
Mode Description
021 MO power A
022 MO power E
023 CDL power
024 CD power
030 MO Adjustment
Mode Description
031 MO EF balance (MO traverse)
032 MO EF gain
033 MO ABCD gain
034 MO focus gain
035 MO tracking gain
036 MO RF gain
037 MO ADIP gain
038 MO focus bias E
039 MO focus bias A
040 Low Reflection CD Adjustment
Mode Description
041
042 Low reflection CD EF gain
043 Low reflection CD ABCD gain
044 Low reflection CD focus gain
045 Low reflection CD tracking gain
046 Low reflection CD RF offset
047 Low reflection CD RF gain
048 Low reflection CD focus bias
Low reflection CD EF balance
(CD traverse)
050 CD Adjustment
Mode Description
051 CD EF balance
052 CD EF gain
053
054 CD focus gain
055 CD tracking gain
056 CD RF offset
057 CD RF gain
058 CD focus bias
CD ABCD gain
(CD RF level check)
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