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Extracted text from sony mz n 710 service manual (Ocr-read)
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MZ-N710
Modulation systemEFM (Eight to Fourteen Modulation)Frequency response20 to 20,000 Hz Β± 3 dBInputs 1) MIC: stereo mini-jack
(minimum input level 0.12 mV)
Line in:
stereo mini-jack for analog input
(minimum input level 49 mV)
optical (digital) mini-jack for optical
(digital) input
Outputsi: stereo mini-jackMaximum output level1.2 mW + 1.2 mW; load impedance
16 -¦ (European models)
5 mW + 5 mW; load impedance
16 -¦ (Other models)
The recorder:
Nickel metal hydride rechargeable battery
NH-10WM 1.2V 900 mAh (MIN) Ni-MH
LR6 (size AA) alkaline battery
Battery charging stand:
AC power adaptor DC 3V
DimensionsApprox. 81.0 Γ 74.4 Γ 20.0 mm (w/h/d)
(31/4 Γ 3 Γ 13/16 in.) Mas
Supplied accessoriessApprox. 108 g (3.8 oz) the recorder only1)The LINE IN (OPTICAL) jack is used to
connect either a digital (optical) cable or a line
(analog) cable.
2)The i jack connects either headphones/
earphones or a line cable.
3)Measured in accordance with JEITA.
US and foreign patents licensed from Dolby
Laboratories.
Design and specifications are subject to change
without notice.
Optical cable (1)
CD-ROM (SonicStage Ver. 1.5) (1)*
Carrying pouch or carrying case with a belt clip (1)
-Do
Design and apecifications are subject to change
without notice. not play a CD-ROM on an audio CD play
AC p ower a daptor (1)
Battery charging stand (1)
Headphones/earphones with
a remote control (1)NH-10WM Nickel metal
hydride rechargeable
battery (1)
Dedicated USB cable (1)
Battery carrying case (1) Dry battery case (1)When to replace the batteries
When the dry battery or rechargeable
battery is weak, flashing r or LOW
BATT appears in the display. Replace the
dry battery or charge the rechargeable
battery.
The battery level indicator is approximate.
It may be more or less than the indication
depending on the operating condition.
NoteStop the recorder before replacing battery.
Battery life
The battery life may be shorter due to
operating conditions, the temperature of
the location, or alkaline dry battery you
use.
When recording (Unit: approx.hours)(JEITA 1))
1)Measured in accordance with the JEITA (Japan
Electronics and Information Technology
Industries Association) standard.
Batteries SP
StereoLP2
StereoLP4
Stereo
Nickel metal
hydride
rechargeable
battery
2)
2)When using a 100% fully charged nickel metal
hydride rechargeable battery (NH-10WM).
7.5 9.5 13
LR6 Sony
alkaline dry
battery
3)
3)When using a Sony LR6 (SG) STAMINA
alkaline dry battery (produced in Japan).
12.5 16 19
Nickel metal
hydride
rechargeable
battery
+ One LR626 34 41
When playing (Unit: approx.hours)(JEITA)
Batteries SP
StereoLP2
StereoLP4
Stereo
Nickel metal
hydride
rechargeable
battery19.5 23 27
LR6 Sony
alkaline dry
battery42 48 56
Nickel metal
hydride
rechargeable
battery
+ One LR663 70 85
Power requirementsSony AC Power Adaptor connected at the DC
IN 3V jack:
120 V AC, 60 Hz (Models forMexico,
Taiwan)
230 V AC, 50/60 Hz (Models for continental
Europe, Singapore and Thailand)
240 V AC, 50 Hz (Model for Australia)
220 V AC, 50 Hz (Model for China)
230 - 240 V AC, 50 Hz (Models for U.K. and
Hong Kong)
220 V AC, 50 Hz (Model for Argentine)
100 - 240 V AC, 50/60 Hz (Other models) and
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.
Ver 1.1 2003.02
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MZ-N710
TABLE OF CONTENTS
1. SERVICING NOTES
............................................... 4
2. GENERAL ................................................................... 5
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 6
3-2. Case (Lower) ................................................................... 7
3-3. MAIN Board, Battery Case ............................................ 7
3-4. Panel (Upper) Section ..................................................... 8
3-5. LCD Module, Panel Upper Block .................................. 8
3-6. Mechanism Deck (MT-MZN710-177) ........................... 9
3-7. OP Service Assy (LCX-5R) ............................................ 10
3-8. Holder Assy ..................................................................... 11
3-9. DC Motor (Sled) (M602) ................................................ 11
3-10. DC Motor (Over Write Head Up/Down) (M603),
DC SSM18B Motor (Spindle) (M601) ........................... 12
4. TEST MODE .............................................................. 13
5. ELECTRICAL ADJUSTMENTS ......................... 18
6. DIAGRAMS
6-1. Block Diagram ................................................................ 37
6-2. Note for Printed Wiring Board and
Schematic Diagrams ....................................................... 38
6-3. Printed Wiring Board
- MAIN Board (Side A) -............................................. 39
6-4. Printed Wiring Board
- MAIN Board (Side B) -............................................. 40
6-5. Schematic Diagram - MAIN Board (1/4) -.................. 41
6-6. Schematic Diagram - MAIN Board (2/4) -.................. 42
6-7. Schematic Diagram - MAIN Board (3/4) -.................. 43
6-8. Schematic Diagram - MAIN Board (4/4) -.................. 44
6-9. IC Pin Function Description ........................................... 50
7. EXPLODED VIEWS
7-1. Case Section .................................................................... 56
7-2. Chassis Section ............................................................... 57
7-3. MAIN Board Section ...................................................... 58
7-4. Mechanism Deck Section-1 (MT-MZN710-177) ........... 59
7-5. Mechanism Deck Section-2 (MT-MZN710-177) ........... 60
8. ELECTRICAL PARTS LIST ............................... 61 CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
Notes on chip component replacement
-Never reuse a disconnected chip component.
-Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
-Keep the temperature of the soldering iron around 270 ΛC dur-
ing 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.
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)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
-Unleaded solder melts at a temperature about 40 ΛC 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 ΛC .
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 viscous (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.
On power sources
-Use house current, nickel metal hydride
rechargeable battery, LR6 (size AA) battery,
or car battery.
-
For use in your house: For the supplied battery
charging stand, use the AC power adaptor
supplied with this recorder. Do not use any other
AC power adaptor since it may cause the recorder
to malfunction.
-Connect the AC power adaptor to an easily
accessible AC outlet. Should you notice an
abnormality in the AC power adaptor,
disconnect it from the AC outlet immediately.
-The recorder is not disconnected from the AC
power source (mains) as long as it is
connected to the wall outlet, even if the
recorder itself has been turned off.
-If you are not going to use this recorder for a
long time, be sure to disconnect the power
supply (AC power adaptor, dry battery,
rechargeable battery, or car battery cord). To
remove the AC power adaptor from the wall
outlet, grasp the adaptor plug itself; never pull
the cord.
Polarity of the
plug