Sony MZB-10 Service manual
MZ-B10
SERVICE MANUAL
Ver. 1.3 2005.09
US and foreign patents licensed from Dolby
Laboratories.
US Model
AEP Model
Tourist Model
Model Name Using Similar Mechanism NEW
Mechanism Type
Optical Pick-up Name
MT-MZN710-177
MT-MZN710-177G
LCX-5R
LCX-5RG
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: λ = 790 nm
Emission duration: continuous
Laser output: less than 44.6 µW
(This output is the value measured at a distan ce
of 200 mm from the lens surface on the optica l
pick-up block with 7 mm aperture.)
Recording and playback time
When using MDW-80
Maximum 160 min. in monaural.
Maximum 320 min. in LP4 stereo
Revolutions
350 rpm to 2,800 rpm (CLV)
Error correction
ACIRC (Advanced Cross Interleave Reed
Solomon Code)
Sampling frequency
44.1 kHz
Sampling rate converter
Input: 32 kHz/44.1 kHz/48 kHz
Coding
ATRAC (Adaptive TRansform Acoustic
Coding)
ATRAC3 — LP2/LP4
SPECIFICATIONS
Modulation system
EFM (Eight to Fourteen Modulation)
Speakers (two units)
28 mm (11/8 in.) dia. per unit
Frequency response (digital/analog
input)
20 to 20,000 Hz ± 3 dB
Inputs
Microphone: stereo mini-jack
(minimum input level 0.25 mV)
1)
:
Line in
stereo mini-jack for analog input
(minimum input level 39 mV)
optical (digital) mini-jack for optical
(digital) input
Outputs
i: stereo mini-jack (dedicated remote control
jack)
Maximum output (DC)
Headphones/earphones: 5 mW + 5 mW (16
)
Ω
Speakers (monaural): 140 mW (70 mW × 2)
General
Power requirements
AC power adaptor DC 3V
LR6 (size AA) alka line dry batter y
2)
Dimensions
Approx. 117.2 × 23.0 × 74.4 mm (w/ h/d)
5
(4
/8 × 29/32 × 3 in.) not incl. projecting parts
and controls.
Mass
Approx. 150 g (5.3 oz) (main unit only)
1)
The LINE IN (OPTICAL) jack is used to
connect either a digit al (optical) c able or a line
(analog) cable.
2)
Measured in accordance with JEITA.
Supplied
Headphones/earphones (1)
Headphones/earphones (1)
Carrying pouch (1)
Handstrap (1)
Clamp filter for the AC power adaptor (1)
Attach the clamp filter when using the optional
AC pow er adaptor.
LR6 (size AA) alkaline dry
batteries (2) (World model only)
Design and specifications are subject to change
without notice.
2)
accessories
– Continued on next page –
9-877-031-04 Sony Corporation
2005I16-1 Personal Communications Business Division
C 2005.09 Published by Sony Engineering Corporation
PORTABLE MINIDISC RECORDER
MZ-B10
Battery life
The battery life may be shorter due to operating
conditions and the temperature of the loca tion.
When recording
Recording mode Approx. hours
SP 24
LP2 34
LP4 48
MONO 34
1)
When using a Sony LR6 (SG) “STAMINA”
alkaline dry batteries (produced in Japan) and
“PowerMode” is set to “NORMAL”
(page 40). Se tting “PowerM ode” to “QUICK”
result in a shorter battery life (page 40).
2)
When recorded with the built-in microphone.
3)
Measured in accordance with the JEITA
(Japan Electronics and Information
Technology Industries Associa tion) standard.
When playing
Recording
mode
SP 45 90
LP2 50 100
LP4 55 110
MONO 50 100
1)
When using a Sony LR6 (SG) “STAMINA”
alkaline dry batterie s (produced in Japan) and
“PowerMode” is set to “NORMAL” (page 40).
2)
Measured in accordance with the JEITA
(Japan Electronics and Information
Technology Industries Associa tion) standard.
3)
When played using the built-in speaker.
4)
When played using headphones/earphone s.
Notes
Stop the recorder before replacing batteries.
An optional AC power adaptor is
recommended for long recording.
1)2)
(Unit: approx.hours)(JEITA3))
1)
(Unit: approx.hours)(JEITA2))
3)
Speaker
Headphones/
earphones
4)
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
On power sources
•
Use house current, LR6 (size AA) battery.
•
For use in your house: 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.
Polarity of the
plug
• 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 wa ll 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).
remove the AC power adaptor from the wall
outlet, grasp the adaptor plug itself; never pull
the cord.
To
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.
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.
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 MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the leadfree 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 ˚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 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.
2
TABLE OF CONTENTS
1. SERVICING NOTES...................................................... 4
2. GENERAL .......................................................................... 5
3. DISASSEMBLY
3-1. Disassembly Flow........................................................ 6
3-2. Case (Lower) Assy....................................................... 7
3-3. Speaker Assy................................................................ 7
3-4. MAIN Board ................................................................8
3-5. Electret Condenser Microphone (MIC901) ................ 8
3-6. Set Chassis Assy, Case (Spk) Assy ............................9
3-7. Case (Upper) Assy....................................................... 9
3-8. LCD Module .............................................................. 10
3-9. Rec Button Assy ........................................................ 10
3-10. Mechanism Deck (MT-MZN710-177)...................... 11
3-11. Gear (SA), OP Service Assy (LCX-5R) ................... 12
3-12. Holder Assy ............................................................... 13
3-13. DC Motor (Sled) (M602) .......................................... 13
3-14. DC Motor (Over Write Head Up/Down) (M603),
DC SSM18B Motor (Spindle) (M601) .....................14
MZ-B10
4. TEST MODE .................................................................. 15
5. ELECTRICAL ADJUSTMENTS ............................. 20
6. DIAGRAMS
6-1. Block Diagram ......................................................... 35
6-2. Note For Printed Wiring Board
And Schematic Diagrams .......................................... 36
6-3. Printed Wiring Board – MAIN Board (Side A) – .... 37
6-4. Printed Wiring Board – MAIN Board (Side B) –.... 38
6-5. Schematic Diagram – MAIN Board (1/4) –............. 39
6-6. Schematic Diagram – MAIN Board (2/4) –............. 40
6-7. Schematic Diagram – MAIN Board (3/4) –............. 41
6-8. Schematic Diagram – MAIN Board (4/4) –............. 42
6-9. IC Pin Function Description...................................... 47
7. EXPLODED VIEWS
7-1. Lower Case Section ................................................... 53
7-2. Upper Chassis Section ............................................... 54
7-3. Chassis Section .......................................................... 55
7-4. Mechanism Deck Section-1
7-5. Mechanism Deck Section-2
(MT-MZN710-177).......
(MT-MZN710-177).......
56
57
8. ELECTRICAL PARTS LIST....................................... 58
3
MZ-B10
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
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.
NOTES ON LASER DIODE EMISSION CHECK
Never look into the laser diode emission from right above when
checking it for adjustment. It is feared that you will lose your sight.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
(LCX-5R)
The laser diode in the optical pick-up block may suffer electrostatic break-down easily. When handling it, perform soldering
bridge to the laser-tap on the flexible board. Also perform measures against electrostatic break-down sufficiently before the operation. The flexible board is easily damaged and should be handled
with care.
• In performing the repair with the power supplied to the set, removing the MAIN board causes the set to be disabled.
In such a case, make a solder bridge to short SL802 (OPEN
CLOSE) on the MAIN board in advance.
– MAIN Board (Side B) –
*
IC801
CSP(Chip Size Package)
SL802
(OPEN/CLOSE)
SL802
(OPEN/CLOSE)
• Handle the FLEXIBLE board (over write head) with care, as it
has been soldered directly to the MAIN board.
In repairing the component side of MAIN board, connect the
FLEXIBLE board (over write head) and the MAIN board with
the lead wires in advance.
laser-tap
OPTICAL PICK-UP FLEXIBLE BOARD
flexible board
(over write head)
case (upper) assy
MAIN board
•This set requires the patch data in the nonvolatile memory
(IC802) to be rewritten, when the nonvolatile memory was replaced. (See page 30)
4
Looking at the controls
Front of the recorder
1
2435
6789 q;
A Display window
B MENU/ENTER button
You c a n u se vari o u s sett ings using
menu items.
C SPEED CONTROL +, – button
Use this button to increase or decrease
the playback speed.
D Built-in microphon e
E Speakers
F REC MODE button
Use this button to select 2 times
normal (LP2 or monaural) or 4 times
(LP4) the normal (SP) recording time.
G GROUP button
This button is used when cueing to a
group or erasing a group.
•
H x STOP button
qg qhqjqk ql w;
•
INPLAY (play) button
The
N
dot.
J REC button
•
K
.
AMS (searc h /AMS) buttons
L TRACK MARK button
Use this button to add track marks
automatically or to divide a track into
separate tracks.
•
MXPAUSE button
N REC indicator
Lights up while recording.
O i (headphon es/earphones) jack
Connect headphones or earphones to
this jack.
qa qsqd qf
•
PLAY button has a tactile
REVIEW • AMS,
SECTION 2
GENERAL
•
CUE
>
9
P MIC (PLUG IN POWER) jack
Connect an optional stereo
microphone to this jack to record.
The MIC (PLUG IN POWER) jack
has a tactile dot.
Q LINE IN (OPTICAL) jack
Connect an optional optica l or line
cable to this jack t o reco rd f rom a CD,
etc.
Back of the recorder
2134
A Battery compartment
Insert two alkaline dry batteries (s ize
AA) here.
B ERASE button
During playback, press this button to
erase the track.
10
MZ-B10
This section is extracted
from instruction manual.
R VOL control
The VOL control has a tactile dot.
S HOLD switch
Slide the switch in the direction of the
arrow (a yellow mark appears) to
disable the button s on the re co rde r. To
prevent the buttons from being
accidentally operated when you carry
the recorder, use this function.
T OPEN switch
How to attach a hand strap
5
C ALL ERASE button
Press ERASE while pressing this
button to erase the contents of an
entire disc.
D DC IN 3V jack
When you connect an optional AC
power adaptor, connect it to this jack.
E Handstrap hole
The display window
12 3 4
9q; qa qs
A Play mode indication
Lights up when selecting specific play
mode.
B Disc indication
Shows that the disc is rotating for
recording, playing or editing an MD.
C Character inform ation display
Displays the disc and track names,
error messages, track numbers, etc.
D Group indication
Lights up while in group play. Flashes
while selecting a group.
E Battery level indication
F SOUND indication
Lights up when the sound mode
(SOUND 1, SOUND 2) is selected.
56 78
G Pause indication
H REC indication
I SYNC (synchro-recording) indication
J SP, LP2, LP4, MONO indication
Shows the recording mode while
recording and SP/LP mode of a track
while playing.
K REC REMAIN indication
Shows the remaining recordable time
in a disc while recordi ng or stopped.
L Time indication
Shows the elapsed time while
recording or playing.
11
5
MZ-B10
• This set can be disassembled in the order shown below.
3-1. Disassembly Flow
CASE (LOWER) ASSY
SECTION 3
DISASSEMBLY
SET
MAIN BOARDSPEAKER ASSY
ELECTRET CONDESER
MICROPHONE (MIC901)
SET CHASSIS ASSY,
CASE (SPK) ASSY
HOLDER ASSY
• In order to remove set chassis assy and case (spk) assy
please remove MAIN board ,speaker assy ,
electret condencer microphone and mechanism deck.
MECHANISM DECK
(MT-MZN710-177)
GEAR (SA),
OP SERVICE ASSY
(LCX-5R)
DC MOTOR
(SLED) (M602)
CASE (UPPER) ASSY
LCD MODULE
REC BUTTON ASSY
DC MOTOR (OVER
WRITE HEAD UP/DOWN)
(M603),
DC SSM18B MOTOR
(SPINDLE) (M601)
6
Note: Follow the disassembly procedure in the numerical order given.
MZ-B10
3-2. Case (Lower) Assy
Note: On installation, adjust the position of
both switch and knob (hold).
5
Remove the case (lower) in the
direction of the arrow.
4
screw (step)
3
screw
(M1.4)
1
three screws
(M1.4)
knob (hold)
switch
2
two screws
(M1.4)
3-3. Speaker Assy
1
Remove the
four solderings
white
blue
red
black
4
two tapping screws (B 2.0)
2
two tapping screws (B 2.0)
5
spk (B) assy
3
spk (A) assy
Note: On installation, lower case is made to
crawl on a speaker cable.
7
MZ-B10
3-4. MAIN Board
7
2
Remove the
two solderings
9
MAIN board
5
flexible board
(CN801)
two screws (M 1.4)
1
Remove the
four solderings
white
blue
red
black
3
Remove two solders of the
flexible board (over write head).
8
flexible board (optical pick-up)
(CN501)
6
flexible board (motor)
(CN701)
3-5. Electret Condenser Microphone (MIC901)
1
two tapping screws (M 1.7 x 3)
2
retainer plate (mic)
3
cushion (microphone)
4
electret condenser microphone (MIC901)
4
Remove the
soldering
8
3-6. Set Chassis Assy, Case (Spk) Assy
y
9
torsion spring
(pop up)
3
Slide the open slider in the direction of the arrow,
and open the case (upper) assy.
5
claw
7
6
set chassis assy
torsion spring (pop up)
2
flexible board
(CN801)
4
two screws
(M1.4)
8
case (upper) section
1
cushion (B1)
8
set chassis assy
1
screw (M 1.4)
7
spring (limiter)
6
compression spring (ground)
3
screw (M 1.4)
MZ-B10
3-7. Case (Upper) Assy
2
two screws (M 1.4)
4
spring (pop-L)
5
case (spk) ass
9
MZ-B10
)
3-8. LCD Module
7
REC button assy
3
claw
6
screw
4
two claws
2
two screws
5
LCD module
1
five screws
9
knob (open)
3-9. Rec Button Assy
3
button (rec)
4
compression spring (rec)
5
bracket assy (rec-B)
6
spring (lock)
8
two screws
2
claw
7
tension spring (release)
9
lever (shaft)
1
plunger solenoid
0
lever (rec-lock)
10
cover (rec)
qs
lever (rec)
8
tension spring (rec
qa
lever assy (release)
3-10. Mechanism Deck (MT-MZN710-177)
s
2
flexible board (motor)
(CN701)
4
flexible board (optical pick-up)
(CN501)
3
two step screws (MD)
5
mechanism deck
(MT-MZN710-177)
1
Remove the
two soldering
MZ-B10
11
MZ-B10
3-11. Gear (SA), OP Service Assy (LCX-5R)
2
1
washer (0.8-2.5)
3
screw (M1.4)
4
rack spring
gear (SA)
5
screw (M1.4)
6
thrust detent spring
8
Pull off lead screw.
7
B
OP service assy (LCX-5R)
over write head section
9
Opening the over write head
toward the direction
(LCX-5R) toward the direction
Note: Do not open the entire assy forcibly,
A
A
, remove the OP service assy
B
.
when opening the over write head.
12
3-12. Holder Assy
y
2
Open the holder assy.
1
convex portion
3
4
boss
MZ-B10
holder ass
3-13. DC Motor (Sled) (M602)
2
4
two screws (M1.4)
5
DC motor (sled) (M602)
washer (0.8-2.5)
3
gear (SA)
3
boss
1
Remove six solders
of the motor flexible board.
13
MZ-B10
3-14. DC Motor (Over Write Head Up/Down) (M603), DC SSM18B Motor (Spindle) (M601)
1
Remove six solders of the
motor flexible board.
2
tapping screw
3
motor cover
7
DC motor (over write head up/down)
(M603)
Note: Press-fit the gear (HA) up to the position of
the DC motor (over write head up/down)
(M603) as shown below.
8
three tapping screws
6
gear (HA)
4
gear (HB)
gear (HA)
3.15 mm
DC motor
(over write head up/down)
(M603)
9
DC SSM18B motor
(spindle) (M601)
5
gear (HC)
14
SECTION 4
V1.300
Microcomputer
version
display
All off
All lit
012
TEST MODE
MZ-B10
Outline
•This set provides the Overall adjustment mode that allows CD
and MO discs to be automatically adjusted when in the test mode.
In this overall adjustment mode, the disc is discriminated between CD and MO, and each adjustment is automatically executed in order. If a fault is found, the system displays its location. Also, the manual mode allo ws each indi vidual adjustment
to be automatically adjusted.
• Operation in the test mode is performed with the set. A key
having no particular description in the text, indicates a set key.
Setting Method of Test Mode
There are three different methods to set the test mode:
1 Short SL803 (TEST) on the MAIN board with a solder bridge
(connect pin <zx. of IC801 to the ground). Then, turn on the power .
– MAIN Board (Side B) –
Operation in Setting the Test Mode
• When the test mode becomes active, first the display check mode
is selected.
• Other mode can be selected from the display check mode.
•When the test mode is set, the LCD repeats the following display.
Set LCD display
All lit
All off
Microcomputer
version
display
SOUND 12
SYNC
MONO
888:88
LP24
SP
REC REMAIN
Ver 1.300
X
MIN
888
012
*
IC501
IC802
SL803
(TEST)
2 In the normal mode, turn on the
CSP(Chip Size Package)
[HOLD] switch. While press-
ing the [GROUP] key press the following order:
> t > t . t . t > t
. t > t . t X t X
3 In the normal mode, turn on the [HOLD] switch on the set.
While pressing the [GROUP] key on the set, press the keys
on the remote commander with the following order :
> t > t . t . t > t
. t > t . t X t X
Note: If electrical adjustment (CD and MO overall adjustment) has not
been finished completely, “ERROR” is displayed on LCD of the
set.
• When the X key is pressed and hold down, the display at that
time is held so that display can be checked.
Releasing the Test Mode
For test mode set with the method 1:
Turn off the power and open the solder bridge on SL803 (TEST)
on the MAIN board.
Note: Remove the solders completely. Remaining could be shorted with
the chassis, etc.
For test mode set with the method 2 or 3:
Turn off the power.
15
MZ-B10
Configuration of Test Mode
[Test Mode $Display Check Mode%]
Press the
or press the
>
[VOL +]
key,
key on the remote commander
[Manual Mode]
Press the
x
key
[Servo Adjustment]
[Audio Adjustment]
[Power Supply Adjustment]
[OP Alignment Adjustment]
Press the
or press the
.
[VOL -]
key,
key on the remote commander
[Overall Adjustment Mode]
Press the
x
Press the
or press the
[GROUP]
key
[DISPLAY]
[Electrical Offset Adjustment]
Power Supply Adjustment
Auto Item Feed
CD Overall Adjustment/
MO Overall Adjustment
key,
key on the remote commander
[Self-Diagnosis Result Display Mode]
Press the
x
key
Press the
N
or
REC
key
[Sound Skip Check Result Display Mode]
Press the
x
key
Press the
on the remote commander for several
seconds (about 3 seconds)
[TRACK MARK]
key, or press the
[DISPLAY]
key
[Key Check Mode]
The key check quits, or open the upper panel
Manual Mode
Mode to adjust or check the operation of the set by function.
Normally, the adjustment in this mode is not executed.
However, the Manual mode is used to clear the memory, power
supply adjustment, and laser power check before performing
automatic adjustments in the Overall Adjustment mode.
•Transition Method in Manual Mode
1. Set the test mode (see page 15).
2. Press the > or press the[VOL +] key on the remote commander activates the manual mode where the LCD display as
shown below.
Set LCD display
[Major item switching]
x
>
key
key
[Medium item switching]
x
>
key
key
[Minor item switching]
[SPEED CONTROL +] key:100th place
of item number increase.
[SPEED CONTROL --] key: 100th place
of item number decrease.
[SPEED CONTROL +]
of item number increase.
key: 10th place
[SPEED CONTROL --] key: 10th place
of item number decrease.
>
key: Unit place of item number
.
increase.
key:Unit place of item number
decrease.
[Adjusted value variation]
[SPEED CONTROL +] key: Increases
the adjusted value of the 1st digit
[SPEED CONTROL --] key: Decreases
the adjusted value of the 1st digit
[P MODE] key of
the remote commander:
Increase the adjusted value
of the 2nd digit
[SOUND] key of the remote commander:
Decrease the adjusted value
of the 2nd digit
[Adjusted value write]
X
key or
key of the remote commander:
When adjusted value is
changed:
Adjusted value is written.
When adjusted value is
not changed:
That item is adjusted
automatically.
[RAM monitor]
[TRACK MARK]
key or
[DISPLAY] key of the remote commander
for several seconds
Manual
0 00
3. During each test, the optical pick-up moves outward or inward while the
onds respectively.
4. Each test item is assigned with a 3-digit item number;
100th place is a major item, 10th place is a medium item, and
unit place is a minor item.
The values adjusted in the test mode are written to the nonvolatile memory (for the items where adjustment was made).
16
> or . key is pressed for several sec-
MZ-B10
5. The display changes a shown below each time the [DIS-
PLAY] key on the remote commander is pressed.
• Address & Adjusted Value Display
Set LCD display
C68S1B
011
• Jitter Value & Adjusted Value Display
Set LCD display
0FEJ1B
011
• Block Error Value & Adjusted Value Display
Set LCD display
063B1B
011
• ADIP Error Value & Adjusted Value Display
Set LCD display
081A1B
011
• Focus Drive Value & Adjusted Value Display
Set LCD display
adjusted value
item number
address
adjusted value
item number
jitter value
adjusted value
item number
block error value
adjusted value
item number
ADIP error value
Overall Adjustment Mode
Mode to adjust the servo automatically in all items.
Normally, automatic adjustment is executed in this mode at the
repair.
For further information, refer to “SECTION 5 ELECTRICAL
ADJUSTMENTS” (see page 20).
Self-Diagnosis Result Display Mode
This set uses the self-diagnostic function system in which if an
error occurred during the recording or playing, the mechanism
control block and the power supply control block in the
microcomputer detect it and record its cause as history in the
nonvolatile memory.
By checking this history in the test mode, you can analyze a fault
and determine its location.
Total recording time is recorded as a guideline of how long the
optical pick-up has been used, and by comparing it with the total
recording time at the time when an error occurred in the selfdiagnosis result display mode, you can determine when the error
occurred.
Clear both self-diagnosis history data and total recording time, if
the optical pick-up was replaced.
• Self-Diagnosis Result Display Mode Setting Method
1. Set the test mode (see page 15).
2. In the display check mode, pressing the [GROUP] key or pressing the [DISPLAY] ke y on the remote commander activ ates the
self-diagnosis result display mode where the LCD display as
shown below.
Set LCD display
1 0000
Total recording time
when error occurred
0XX
error display code
history code
3. Then, each time the > key is pressed, LCD display descends
by one as shown below. Also, the LCD display ascends by one
when the . key is pressed.
000F1B
011
• Item Title Display
Set LCD display
LrefPw
011
However in the power mode (item number 700’s), only the
item is displayed.
6. Quit the manual mode, and press the x key to return to the
test mode (display check mode).
adjusted value
item number
focus drive value
item title
item number
XX
: Error code
****
: Total recording time
1 ****
0XX
N ****
0XX
N1****
0XX
N2****
0XX
R_****
0XX
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MZ-B10
If the [GROUP] key or the [DISPLAY] key on the remote commander is pressed with this display , the LCD switches to the simple
display mode.
4. Quit the self-diagnosis result display mode, and press the x key
to return to the test mode (display check mode).
• Description of Error Indication Codes
Problem Indication code Meaning of code Simple display Description
No error 00 No error --- No error
01
Servo system error 02 High temperature Temp High temperature detected
03 Focus error Fcus Disordered focus or can not read an address
04 Spindle error Spdl Abnormal rotation of disc
11 TOC err or TOC Faulty TOC contents
TOC error 12 Data reading error Data data could not be read at SYNC
13 TOC address error Tadr TOC address data error
Power supply system error 22 Low battery LBat Momentary interruption detected
31 Offset error Ofst Offset error
32
Offset system error 33
34
35
36 Mirror error Mirr Mirror retry over
Illegal access target
address was specified
Focus error ABCD
offset error
Tracking error
Offset error
X1 tracking error
Offset error
MD DATA 2
disc error
Adrs Attempt to access an abnormal address
ABCD Focus error ABCD offset error
TE Tracking error Offset error
X1TE X1 tracking error Offset error
MD2 MD DATA 2 disc error
• Description of Indication History
History code number Description
1 The first error
N The last error
N1 One error before the last.
N2 Two errors before the last.
R_ Total recording time
Reset the Error Display Code
After servicing, reset the error display code.
• Setting Method of Reset the Error Display Code
1. Set the test mode (see page 15).
2. Pressing the
the remote commander activates the self-diagnosis result display mode.
3. To reset the error display code, press the X key (twice) when
the code is displayed (except “R_****”).
(All the data on the 1, N, N1, and N2 will be reset)
[GROUP] key or pressing the [DISPLAY] key on
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MZ-B10
Sound Skip Check Result Display Mode
This set can display the count of errors that occurred during the
recording/playing for checking.
• Setting Method of Sound Skip Check Result Display
Mode
1. Set the test mode (see page 15).
2. Press the N key or [REC] key, and the playing or recording
sound skip result display mode becomes active respectively
where the LCD displays the following.
Set LCD display
P**R**
Total count of record
000
3. When the
the LCD, and each time the > key is pressed, the display
item moves down by one as sho wn below . Also, if the . key
is pressed, the display item moves up by one, then if the [REC]
key is pressed, the display in the record mode appears.
When the [REC] key is pressed, total error count is displayed
on the LCD, and each time the > key is pressed, the display item moves down by one as shown below. Also, if
the . key is pressed, the display item moves up by one,
then if the N key is pressed, the display in the play mode
appears.
N key is pressed, total error count is displayed on
system errors (hex.)
Total count of play
system errors (hex.)
• Cause of Sound Skip Error
Cause of error Description of error
EIB Sound error correction error
Play
Record
4. To quit the sound skip check result display mode and to return
to the test mode (display check mode), press the x key.
• Setting Method of Key Check Mode
1. Set the test mode (see page 15).
2. Pressing the
Stat Decoder status error
Adrs Address access error
BEmp Buffer is empty
BOvr
Bful
Rtry Retry times over
[TRACK MARK] key acti va tes the key check mode.
Set LCD display
Buffer is full, and sounds were
dumped
Buffer capacity becomes less,
and forcible writing occurred
**
000
3. When each key on the set and on remote commander is pressed,
its name is displayed on the set LCD. (Operated position is
displayed for 4 seconds after the slide switch is operated.
Playing sound skip
result display
P**R**
EIB **
Stat**
Adrs**
BEmp**
Recording sound skip
result display
P**R**
0 00
0 00
BOvr**
0 00
0 00
Bful**
0 00 0 00
Rtry**
0 00
0 00
######
0 00
0 00
Example: When the > key on the set is pressed:
Set LCD display
FF **
000
4. When all the keys on the set and on the remote commander are
considered as OK, the following displays are shown.
Example: When the keys on the set are considered as OK:
Set LCD display
SET OK **
888
5. When the upper panel is opened, the key check mode quits
and the test mode (display check mode) comes back.
######
0 00
P**R**: Total play/record errors (hex.)
** : Counter of sound skip check each item (hex.)
######: 6-digit address where sound was skipped last (hex.)
19
MZ-B10
Ver 1.1 2003.06
SECTION 5
ELECTRICAL ADJUSTMENTS
Outline
• In this set, automatic adjustment of CD and MO can be performed by entering the test mode.
However, before starting automatic adjustment, the memory
clear, power supply adjustment, and laser power check must be
performed in the manual mode.
•A key having no particular description in the text, indicates a
set key.
Precautions for Adjustment
1. Adjustment must be done in the test mode only.
After adjusting, release the test mode.
2. Use the following tools and measuring instruments.
•Test CD disc TDYS-1
(Part No. : 4-963-646-01)
• SONY MO disc available on the market
• Digital voltmeter
• Laser power meter LPM-8001
(Part No. : J-2501-046-A)
•Thermometer (using the Temperature Correction)
3. Unless specified otherwise, supply DC 1.2V from the BATT
IN (TP601, TP602).
4. Switch position
HOLD switch ............................................... ON
Adjustment Sequence
1. NV Reset (item number: 021)
(EEPROM clear)
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2. Temperature Correction (item number: 015)
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3. Rewriting the NV values.
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4. Power Supply Manual Adjustment
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5. Laser Power Check
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6. CD Overall Adjustment (item number: 031)
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MO
Overall Adjustment (item number: 034)
7.
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8. RESUME Clear (item number 043)
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9. Rewriting the Patch Data
(at replacement of the nonvolatile memory)
Manual Mode
Overall Mode
Manual Mode
NV Reset
• Setting Method of NV Reset
1. Select the manual mode of the test mode, and set item number
021 NV Reset (see page 16).
Set LCD display
2. Press the X key.
Set LCD display
ResOK?
021
3. Press the
X key once more.
Set LCD display
Res***
021
NV reset (after several seconds)
Reset!
021
4. Press the x key to quit the manual mode, and
return to the test mode (display check mode).
Temparature Correction
• Adjustment Method of Temperature Correction
1. Select the manual mode of the test mode, and set the item number 015 (see page 16).
Set LCD display
SetTmp **
015
**
: Adjusted value
2. Measure the ambient temperature.
3. Adjust with [SPEED CONTROL +] or [SPEED CONTROL --]
key so that the adjusted value (hexadecimal value) becomes
the ambient temperature.
(Initial value : 19h = 25˚C, Adjusting range : 80h to 7fh
(–128˚C to +127˚C))
4. Press the X key
to write the adjusted value.
or press the key on the remote commander
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ResNV CC
021
MZ-B10
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Rewriting the NV values
Note : Modify four adjusted values through the following proce-
dure. Modifying the item number 863 and 864 is not necessary after version 1.600.
• Adjusted values modifying procedure
1. Select manual mode of the test mode, and set item number
860 (see page 16).
2. Press the > key to set item number 861.
Set LCD display
V1 num **
861
**
: Adjusted value
3. Adjust with the [SPEED CONTROL +] key (adjusted value
up) or [SPEED CONTROL
that the adjusted value becomes E3.
4. Press the X key on the set or the key on the remote
commander to write the adjusted value.
5. Press the > key to set item number 862.
Set LCD display
-
] key (adjusted value down) so
V1 dat **
862
**
: Adjusted value
6. Adjust with the [SPEED CONTROL +] key (adjusted value
up) or [SPEED CONTROL
that the adjusted value becomes 55.
7. Press the X key on the set or the key on the remote
commander to write the adjusted value.
8. Press the
> key to set item number 863.
Set LCD display
-
] key (adjusted value down) so
V2 num **
Power Supply Manual Adjustment
• Adjustment sequence
Adjustment must be done with the following steps.
1. VC1_LOW (PB) adjustment (item number : 741)
2. VC1_HIGH (REC) adjustment (item number : 742)
3. VC2_LOW adjustment (item number : 743)
4. VC2_HIGH adjustment (item number : 744)
5. REG1 adjustment (item number : 745)
6. REG3_LOW1 adjustment (item number : 747)
7. REG3_LOW2 adjustment (item number : 748)
8. REG3_HIGH adjustment (item number : 749)
9. VREC_LOW (X2 speed) adjustment (item number : 751)
10. VREC_MIDDLE (X4 speed)adjustment (item number : 752)
11. VREC_HIGH (HEAD MOTOR) adjustment (item number : 753)
• Setting Method of Power Supply Manual Adjustment
1. Make sure that the power supply voltage is 1.2V (BATT IN).
2. Select the manual mode of the test mode (see page 16).
3. Set item number.
Note1: BA TT- terminal is not GND when AC adaptor is used.
Note2: Power supply adjustment auto item feed mode (page 26) is
available to perform the temperature Correction and Power
Supply Adjustment without entering the manual mode.
• Adjustment Method of VC1_LOW (PB)
(item number: 741)
Set LCD display
VC1 L **
741
**
: Adjusted value
1. Connect a digital voltmeter to the TP1928 (VCO1) on the MAIN
board, and adjust [SPEED CONTROL +] key (voltage up) or
[SPEED CONTROL --] key (voltage down) so that the voltage
becomes 2.4 ± 0.05V.
863
**
: Adjusted value
9. Adjust with the [SPEED CONTROL +] key (adjusted value
up) or [SPEED CONTROL
that the adjusted value becomes 89.
10. Press the X key on the set or the key on the remote
commander to write the adjusted value.
11. Press the > key to set item number 864 .
Set LCD display
-
] key (adjusted value down) so
V2 dat **
864
**
: Adjusted value
12. Adjust with the [SPEED CONTROL +] key (adjusted value
up) or [SPEED CONTROL
that the adjusted value becomes 03.
13. Press the X key on the set or the key on the remote
commander to write the adjusted value.
-
] key (adjusted value down) so
digital
voltmete
MAIN board
TP1928 (VCO1)
TP1616 (GND)
2. Press the X key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location:MAIN board
(see page 25)
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MZ-B10
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REG1 **
745
Set LCD display
**
: Adjusted value
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• Adjustment Method of VC1_HIGH (REC)
(item number: 742)
Set LCD display
VC1 H **
742
**
: Adjusted value
1. Connect a digital voltmeter to the TP1928 (VCO1) on the
MAIN board, and adjust [SPEED CONTROL +] key (voltage
up) or
[SPEED CONTROL --] key (voltage down) so that the
voltage becomes 2.75 ± 0.05V.
digital
voltmete
MAIN board
TP1928 (VCO1)
TP1616 (GND)
2. Press the X key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location:MAIN board
(see page 25)
• Adjustment Method of VC2_LOW
(item number: 743)
Set LCD display
• Adjustment Method of VC2_HIGH
(item number: 744)
Set LCD display
VC2 Hi **
744
**
: Adjusted value
1. Connect a digital voltmeter to the TP1905 (VCOUT) on the
MAIN board, and adjust [SPEED CONTROL +] key (voltage
up) or [SPEED CONTROL --] key (voltage down) so that the
voltage becomes 2.30 ± 0.01V.
digital
voltmete
MAIN board
TP1905 (VCOUT)
TP1616 (GND)
2. Press the X key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location:MAIN board
(see page 25)
• Adjustment Method of REG1
(item number: 745)
VC2 Lo **
743
**
: Adjusted value
1. Connect a digital voltmeter to the TP1905 (VCOUT) on the
MAIN board, and adjust
up) or [SPEED CONTROL --] key (voltage down) so that the
voltage becomes 2.30 ± 0.01V.
MAIN board
TP1905 (VCOUT)
TP1616 (GND)
2. Press the X key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location:MAIN board
[SPEED CONTROL +] key (voltage
digital
voltmete
(see page 25)
1. Connect a digital voltmeter to the TP1909 (REGO1) on the
MAIN board, and adjust
up) or [SPEED CONTROL --] key (voltage down) so that the
voltage becomes 2.15 ± 0.01V.
MAIN board
TP1909 (REGO1)
TP1616 (GND)
2. Press the X key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location:MAIN board
[SPEED CONTROL +] key (voltage
digital
voltmete
(see page 25)
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MZ-B10
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• Adjustment Method of REG3_LOW1
(item number: 747)
Set LCD display
REG3L1 **
747
**
: Adjusted value
1. Connect a digital voltmeter to the TP1907 (REGO3) on the
MAIN board, and adjust [SPEED CONTROL +] key (voltage
up) or [SPEED CONTROL --] key (voltage down) so that the
voltage becomes 1.25 ± 0.01V.
digital
voltmete
MAIN board
TP1907 (REGO3)
TP1616 (GND)
2. Press the X key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location:MAIN board
(see page 25)
• Adjustment Method of REG3_HIGH
(item number: 749)
Set LCD display
REG3 H **
749
**
: Adjusted value
1. Connect a digital voltmeter to the TP1907 (REGO3) on the
MAIN board, and adjust [SPEED CONTROL +] key (voltage
up) or [SPEED CONTROL --] key (voltage down) so that the
voltage becomes 1.25 ± 0.01V.
MAIN board
TP1907 (REGO3)
TP1616 (GND)
2. Press the X key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location:MAIN board
digital
voltmete
(see page 25)
• Adjustment Method of REG3_LOW2
(item number: 748)
Set LCD display
REG3L2 **
748
**
: Adjusted value
1. Connect a digital voltmeter to the TP1907 (REGO3) on the
MAIN board, and adjust
up) or [SPEED CONTROL --] key (voltage down) so that the
voltage becomes 1.25 ± 0.01V.
MAIN board
TP1907 (REGO3)
TP1616 (GND)
2. Press the X key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location:MAIN board
[SPEED CONTROL +] key (voltage
digital
voltmete
(see page 25)
• Adjustment Method of VREC_LOW (X2 speed)
(item number: 751)
Set LCD display
VREC L **
751
**
: Adjusted value
1. Connect a digital voltmeter to the TP1620 (VREC) on the
MAIN board, and adjust
up) or [SPEED CONTROL --] key (voltage down) so that the
voltage becomes 1.10 ± 0.01V.
MAIN board
TP1620 (VREC)
TP1616 (GND)
2. Press the X key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location:MAIN board
[SPEED CONTROL +] key (voltage
digital
voltmete
(see page 25)
23
MZ-B10
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• Adjustment Method of VREC_MIDDLE (X4 speed)
(item number: 752)
Set LCD display
VREC M **
752
**
: Adjusted value
1. Connect a digital voltmeter to the TP1620 (VREC) on the
MAIN board, and adjust [SPEED CONTROL+] key (voltage
up) or [SPEED CONTROL --] key (voltage down) so that the
voltage becomes 1.10 ± 0.01V.
digital
voltmete
MAIN board
TP1620 (VREC)
TP1616 (GND)
2. Press the X key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location:MAIN board
(see page 25)
• Adjustment Method of VREC_HIGH (HEAD MOTOR)
(item number: 753)
Set LCD display
VREC H **
753
**
: Adjusted value
1. Connect a digital voltmeter to the TP1620 (VREC) on the
MAIN board, and adjust
up) or [SPEED CONTROL --] key (voltage down) so that the
voltage becomes 1.65 ± 0.01V.
MAIN board
TP1620 (VREC)
TP1616 (GND)
[SPEED CONTROL +] key (voltage
digital
voltmete
2. Press the X key on the set or the key on the remote
commander to write the adjusted value.
Adjustment and Connection Location:MAIN board
(see page 25)
24
Adjustment/checking and Connection Location:
IC801
IC802
IC501
IC601
IC701
IC901
IC301
IC302
MAIN BOARD
(SIDE B)
TP1322
TP1323
S804
(GND)
20
20
1
(VREC)
(REGO1)
(VCO1)
(REGO3)
(VCOUT)
48
49
1
64
33
32
17
16
R905
R925
1
10
TP1616 (GND)
TP1620 (VREC)
TP1909 (REGO1) TP1928 (VCO1) TP1907 (REGO3)
TP1905 (VCOUT)
MZ-B10
25
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