Sony MZ-E10 User Manual

MZ-E10
SERVICE MANUAL
Ver 1.0 2002.11
US and foreign patents licensed from Dolby Laboratories Licensing Corporation
SPECIFICATIONS
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 distance of 200 mm from the objective lens surface on the optical pick-up block with 7 mm aperture.
Revolutions
Approx. 300 rpm to 2,700 rpm
Error correction
ACIRC (Advanced Cross Interleave Reed Solomon Code)
Sampling frequency
44.1 kHz
Coding
ATRAC (Adaptive TRansform Acoustic Coding) ATRAC3: LP2/LP4
Modulation system
EFM (Eight to Fourteen Modulation)
Number of channels
2 stereo channels 1 monaural channel
Frequency response
20 to 20,000 Hz ± 3 dB
Outputs
Headphones/earphones: dedicated headphone/ remote control jack, output level 5 mW + 5 mW(US model) load impedance 16 ohms, 5 mW + 5 mW (Other models) load impedance 16 ohms
Power requirements
Lithium-ion rechargeable battery (Built-in: LIP- 3WMB, 3.7 V, 340 mAh, Li-ion) External power jack (for the battery charging stand): Power rating 6 V DC
US Model
Canadian Model
AEP Model
UK Model
E Model
Tourist Model
Model Name Using Similar Mechanism NEW
MD Mechanism Type MT-MZE10-184
Optical Pick-up Mechanism Type ABX-1ES
Battery life
Batteries SP Stereo LP2 LP4
Lithium-ion 23 33 40 built-in rechargeable battery
1)
Measured with the power save function on (see
“ Preserving battery power” ).
2)
Measured in accordance with the JEITA (Japan Electronics and Information Technology Industries Association) standard (using a Sony MDW-series Mini-disc).
3)
With a fully charged battery.
Note
The battery life may be shorter than that specified, depending on the operating conditions,the temperature of the location.
Dimensions
Approx. 81.9 x 72.2 x 9.9 mm (w/h/d) ( 3 1/4 x 2 7/8 x 13/32 in.) (not including projecting parts and controls)
Mass
Approx. 55 g (1.6 oz) (including the built-in rechargeable battery)
Supplied accessories
Headphones/earphones with a remote control (1) Battery charging stand (1) AC power adaptor (for the supplied battery charging stand) (1) Headphone adaptor (1) Carrying pouch (1)
Design and specifications are subject to change without notice.
1)
(Unit: Approx. hours) (JEITA2))
(normal) Stereo Stereo
3)
9-874-219-01
2002K0200-1
© 2002.11
PORTABLE MINIDISC PLAYER
Sony Corporation
Personal Audio Company Published by Sony Engineering Corporation
MZ-E10
CAUTION
Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer’s instruc­tions.
ADVARSEL!
Lithiumbatteri-Eksplosionsfare ved fejlagtig håndtering.
Udskiftning må kun ske med batteri
af samme fabrikat og type.
Levér det brugte batteri tilbage til leverandøren.
ADVARSEL
Eksplosjonsfare ved feilaktig skifte av batteri.
Benytt samme batteritype eller en tilsvarende type
anbefalt av apparatfabrikanten.
Brukte batterier kasseres i henhold til fabrikantens
instruksjoner.
VARNING
Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller en likvärdig typ som rekommenderas av apparattillverkaren. Kassera använt batteri enligt gällande föreskrifter.
VAROITUS
Paristo voi räjähtää, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hävitä käytetty paristo valmistajan ohjeiden mukaisesti.
CAUTION
Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
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.
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 PA RT NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ! LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
TABLE OF CONTENTS
Specifications ........................................................................... 1
1. SERVICING NOTE ...................................................... 3
2. GENERAL
Playing an MD ................................................................... 4
3. DISASSEMBLY
3-1. Panel assy (S), Upper ................................................. 5
3-2. Mechanism Deck (MT-MZE10-184) .......................... 5
3-3. Bracket assy ............................................................... 6
3-4. Power Board, Main Board .......................................... 6
3-5. Control Board ............................................................. 7
3-6. Optical Pick-up assy(ABX-1ES) ................................ 7
4. TEST MODE.................................................................. 8
5. ELECTRICAL ADJUSTMENTS ............................ 11
6. DIAGRAMS
6-1. Block Diagram .......................................................... 19
6-2. Printed Wiring Boards – Main Section (1/2) – ......... 20
6-3. Printed Wiring Boards – Main Section (2/2) – ......... 21
6-4. Schematic Diagram – Main Section (1/3) – ............. 22
6-5. Schematic Diagram – Main Section (2/3) – ............. 23
6-6. Schematic Diagram – Main Section (3/3) – ............. 24
6-7. IC Pin Function Descrintion ..................................... 26
6-8. IC Block Diagrams ................................................... 30
7. EXPLODED VIEWS
7-1. Main Section ............................................................. 33
7-2. Mechanism Deck Section (MT-MZE10-184) ........... 34
8. ELECTRICAL PARTS LIST................................... 35
r
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°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.
* Replacement of SN761058ZQL (IC501) and LC896442-VH4-
16-E (IC601) used in this set requires a special tool.
2
SECTION 1

SERVICING NOTE

When repairing this device with the power on, if you remove the main board, this device stops working. In this case, you work without the device stopping by fastening the hook of the Open/Close detection switch (S803).
Open/Close detection switch (S803)
MZ-E10
3
MZ-E10
4
The Player
1 2
9
8 7
1 i (Headphones/earphones) jack 2 GROUP button 3 “3-color info-LED” 4 HOLD (Locking the control) switch 5 5-way control key ( .
x•VOL +, –)
6 OPEN switch 7 BUILT-IN BATTERY switch (at the
bottom)
8 Terminals for charging stand (at the
bottom)
9 Hand strap hole
Use the hole to attach your strap
*N has a tactile dot .
The display window of the remote control
12 3456
7 9
1 Disc indication 2 Track number display 3 Character information display 4 Group play indication 5 Play mode indication 6 Virtual Surround/6-band equalizer
indications
7 Battery level indication 8 Bookmark indication 9 Alarm indication
The battery charging stand
> N
*
8
1 2
1 DC IN (6V jack) (at the bottom) 2 Terminals for charging
The headphones/earphones with a remote control
A
B
C
D
5
F
1 Headphones/earphones 2 Stereo mini plug 3 Control VOL +, –
Turn to adjust the volume .
4 x (stop) button 5 Jog lever (.•u/ENT•>) 6 (Group) +, – button 7 Clip 8 HOLD switch 9 Display window q; DISPLAY button qa P MODE / (play mode/repeat) button qs SOUND button
C D
E
6
7 8
9 q;
qa
qs
SECTION 2

GENERAL

This section is extracted from instruction manual.
Playing an MD
1
Insert an MD.
1 Slide OPEN to open the lid. 2 Insert an MD. 3 Close the lid.
3
2
1
Insert an MD with the label side facing up, pushing the MD to the direction of the arrow in the illustration.
2
Play an MD.
Bottom side of
VOL–
VOL+
x
Jog lever (.u/ENT• >)
1 Press the jog lever ( u) on the remote control. (Press towards > N on
the player.)
A short beep sounds in the headphones/earphones. The LED lights up.
2 Turn the control towards VOL + or – on the remote control to adjust the
volume. (Press towards VOL + or – on the player. )
The volume indicator appears in the display, allowing you to check the volume level.
To stop play, press
A long beep sounds in the headphones/earphones.
Playback starts from the point you last stopped playing. To start playback from the beginning of the disc, press and hold the jog lever (u) for 2 seconds or more on the remote control (Press and hold towards > N for 2 seconds or more on the player).
To
Pause
Cue to the current track or the previous track
Cue to the next track
Go backwards or forward while playing
Searching for a specific position while viewing a elapsed time (Time search)
Searching for a specific track while viewing track numbers or track names (Index search)
Cue to the beginning of every 10th track (only during playback of the disc with no group settings1))
Remove the MD
1)
For more details, see “Using the group function.”
2)
Once you open the lid, the point to start play will change to the beginning of the first track (except when the disc information has been stored in the personal disc memory).
About the “3-color info-LED”
The LED indicates the current operating mode, charging status, and battery condition. For details about the charging status, see “Getting started.” For details about the battery condition, see “When to recharge the built-in battery” on the back page.
LED color
Red Green
Orange
Operating status
Playing a disc with no group settings Playing a disc with group settings
Cueing to the another group (Group Skip)
x.
Do this (Beeps in the headphones/earphones)
Press the jog lever (u) on the remote control (continuous short beeps). Press the jog lever (u) again to resume play.
Slide the jog lever towards . on the remote control (three short beeps). (Press towards . on the player. )
Slide the jog lever towards > on the remote control (two short beeps). (Press towards > on the player.)
Slide and hold the jog lever towards . or > on the remote control. (Press and hold towards . or > on the player. )
While the player is paused, slide and hold the jog lever towards . or > on the remote control.
While the player is stopped, slide and hold the jog lever towards . or > on the remote control.
Press + or – button.
Press x, and then slide OPEN2).
the player
“3-color info-LED”
VOL +
VOL –
5-way control key
x> N.
SECTION 3
)
d

DISASSEMBLY

r
The equipment can be removed using the following procedure.
Bracket ASSY
MZ-E10
POWER board, MAIN board
Set
Note : Follow the disassembly procedure in the numerical order given.
Panel ASSY (S), upper
Mechsnism deck (MT-MZE10-184)

3-1. PANEL ASSY (S), UPPER

7
Panel ASSY (S), upper
2
Claw
Holder ASSY
Optical pick-up ASSY (ABX-1ES)
4
CONTROL board
1
Two screws (M1.4
3
Claw
5
Bracket ASSY

3-2. MECHANISM DECK (MT-MZE10-184)

5
Motor flexible board
(CN551)
1
Screw, step
6
6
Mechanism deck
(MT-MZE10-184)
4
OP flexible boar
(CN501)
3
2
Two claws
5
MZ-E10

3-3. BRACKET ASSY

9
Switch flexible board
(CN801)
8
7
Two screws (M1.4)
Sheet (blind)
6
Screw (M1.4)
0
Bracket ASSY
2
Plate, retainer

3-4. POWER BOARD, MAIN BOARD

3
Battery, lithium ion storage
5
Konb (power)
1
Case, battery
1
Screw (M1.4)
4
Lid (DC), battery case
3
2
Retainer, battery
4
POWER board
5
Power relay flexible board
(CN952, CN953)
7
6
MAIN board ASSY
6

3-5. CONTROL BOARD

4
Cover (control)
7
CONTROL board
6
Button (control)
Bracket ASSY
5
Switch flexible board
(CN801)
MZ-E10
2
3
Knob (open)
1

3-6. OPTICAL PICK-UP ASSY (ABX-1ES)

6
Optical pick-up ASSY
(ABX-1ES)
Remove three claws
Screw (M1.4)
5
3
Screw, tapping
4
Spring, thrust detent
1
Washer (0.8-2.5)
2
Gear (SA)
Mechanism deck (MT-MZE10-184)
7
MZ-E10
R
SECTION 4

TEST MODE

4-1. GENERAL
• When entered in the TEST MODE, this set provides the Overall Adjustment mode which allows CD and MO discs to be auto­matically adjusted. In the Overall Adjustment mode, the system discriminates between CD and MO discs, performs adjustments in sequence automatically, and displays the faulty location if any fault is found. In the Manual mode, selected adjustments can be performed automatically.
• The attached remote control is used to operate the TEST MODE. Unless otherwise specified in the text, the key means that on the remote control.
4-2. SETTING THE TEST MODE
4-2-1. How to set the TEST MODE
To set the TEST MODE, two methods are available. 1 Solder bridge and short TAP602 (TEST) on the main board.
Then turn on the power.
MAIN BOARD (SIDE A)
12 7
13
6
C953
FB601
E
IC951
Q951
TAP602
(TEST)
D951
R604
51
TAP602 SHORT: TEST MODE OPEN: NORMAL MODE
R623
C606
R620
C617C612C608
R607R622
C607
R621
R964
18
19 24
R965
1
C954
C957
C958
1
2
CN951
56
R959
C928
R958 R957
R961
R956
Remote control LCD
F
1SHUFPGM SOUND
u
000
V-SUR
All on
All off
001 V1.000
Microprocessor version display
• Press and hold down
key is being pressed.
4-2-3. How to release the TEST MODE
When method 1 was used: Turn off the power and open the solder bridge on TAP602 on the main board.
R627
Note: The solder should be removed clean. The remaining solder
may make a short with the chassis and other part.
When method 2 was used: Turn off the power. Note: If electrical adjustment (see page 11) has not been finished
completely, always start in the test mode.
4-3. TEST MODE STRUCTURE
Test Mode (Display Check Mode)
VOL + key
x
key
to hold the current display while the
Manual Mode
Servo Adjustment
8
2 In the normal mode, operate the keys on the set and those on the
remote control as specified below:
Turn on HOLD switch on the set. Holding down
x
(STOP)
key on the set, press the keys on the remote control in the following sequence:
t
>
t
>
>
t
t
.
t t
.
t
.
t
>
t
.
4-2-2. Operations when the TEST MODE is set
When the TEST MODE is entered, the system switches to the dis­play check mode within the TEST MODE. From this mode, the other Test modes can be accessed. When the TEST MODE is set, the LCD repeats a cycle of the fol­lowing displays:
8
Audio Adjustment
Power Supply Voltage Adjustment
Charge Adjustment
key
VOL
Overall Adjustment Mode
x
key
CD/MO Adjustment
Power Supply Voltage Adjustment
NV Initialize (Clear the Non-Volatile memory
+ key or DISPLAY key
(Press and hold down about for more than2 sec)
Terminate key checking or open the top panel.
Key Check Mode
MZ-E10
011 AAAS 3F
address
mode number
mode number
mode number
mode number
mode number
adjusted value
adjusted value
adjusted value
adjusted value
adjusted value
011 OFFJ 3F
jitter value
011 000B 3F
block error value
011 000A 3F
ADIP error value
011 000F 3F
Focus drive voltage value
• Address & Adjusted Value Display LCD display
011 Lrefpw 3F
Item title
mode number
adjusted value
• Item title Display LCD display
• Jitter Value & Adjusted Value Display LCD display
• Block Error Value & Adjusted Value Display LCD display
• ADIP Error Value & Adjusted Value Display LCD display
• Focus drive voltage value & Adjusted value LCD display
4-4. MANUAL MODE
4-4-1. Outline of the function
The Manual mode is designed to perform adjustments and operational checks on the set’s operation according to each individual function. The Manual mode is used to clear the memory before performing automatic adjustments in the Overall Adjustment mode.
4-4-2. How to set the Manual mode
1. Set the TEST MODE and press
mode.
Remote control LCD display
000 Manual
2. During each test, press and hold down
key for a while to move the optical pickup on the sled outer or inner perimeter.
3. Each test item is assigned with a three-digit item number. The 100th place is a major item, 10th place is a middle item, and unit place is a minor item.
Note: Changes in adjustment item settings are written into the
non-volatile memory.
Change Major
>
>
key
Item
Change Middle Item
Change Minor Item
+
VOL
VOL
x
keykey
+
VOL
VOL
x
key
>
key : Unit place of mode number
increase
.
key : Unit place of mode number
decrease
Change Adjustment Value
VOL +
key : 100th place of mode number
increase
key : 100th place of mode number
decrease
key : 10th place of mode number
increase
key : 10th place of mode number
decrease
key to set the Manual
key or
>
VOL
VOL
.
key : Up
+
key : Down
4. During each test mode, the display is changed from one to another each time DISPLAY key is pressed.
Write Adjustment Value
key : When adjusted value is changed :
Adjusted value is written. When adjusted value is not changed : That item is adjusted automatically.
Note: In the Power mode, the item title display is only displayed.
5. To terminate the Manual mode and return to the TEST MODE,
x
key.
press
4-5. OVERALL ADJUSTMENT MODE
4-5-1. Outline of the function
This mode is designed to adjust the servo system automatically by going through all the adjustment items. Usually, this mode is used to perform automatic adjustments when servicing the set.
For further information, refer to section 5. ELECTRICAL ADJUST­MENTS. (See page 11)
9
MZ-E10
4-6. KEY CHECK MODE
4-6-1. Outline of the function
This mode is used to check to make sure that each of the keys (including the slide switch) on the set operates normally.
4-6-2. Setting the Key Check mode
1. Set the TEST MODE. Press and hold down
(for more than 2 sec) to set the Key Check mode.
LCD display
DISPLAY
key
000 XX
2. When each key on the set and on remote control is pressed, its name is displayed on the LCD. (The operated position is dis­played for 4 sec after the slide switch is operated. If any other key is pressed during this display, the LCD switches to its name display)
Example: When
LCD display
key on the set is pressed:
>
000 FF XX
Example: When
LCD display
key on the remote control is pressed:
>
000 rFF XX
XX: AD value of the remote control key (hexadecimal 00 to FF)
3. When all the keys on the set and on the remote control are con­sidered as OK, the following displays are shown. (The key pressed to enter the Key Check mode has been checked even if it is not pressed in this mode)
Example: When the keys on the set are considered as OK:
LCD display
Example: When the keys on the remote control are considered
LCD display
SET OK XX
as OK:
4. When all the key have been checked or when the top panel is opened during this checking, the system terminates the Key Check mode and return to the TEST MODE.
Note: Slide switch can checked as OK by ON t OFF t ON
RMC OK XX
(or reverse) operation.
10
SECTION 5
862 88C6 FF
This section (data) flashes.
862 88C7 FF
This section (data) flashes.

ELECTRICAL ADJUSTMENTS

MZ-E10
5-1. GENERAL
In this set, CD and MO discs can be automatically adjusted by set­ting the Overall Adjustment mode within the TEST MODE, Before performing these automatic adjustments, it is necessary to clear the memory, adjust the power charge and temperature in the Manual mode.
5-2. NOTES FOR ADJUSTMENT
5-2-1. Jigs
• CD disc TDYS-1 (part code: 4-963-646-01)
• MO disc PTDM-1 (part code: J-2501-054-A) (recorded)
• Digital voltmeter
• Thermometer
5-2-2. Adjustment sequence
The adjustments should be always performed in the following sequence:
1 NV Initialize (Clear the Non-Volatile memory)
2 Power supply voltage adjustment
3 Charge adjustments
4 Temperature adjustment
5 Overall CD adjustments
6 Overall MO adjustments
7 RESUME clear
5-2-3. Power
In overall adjustment, the power is supplied from the internal bat­tery (Li-Ion) and the charging stand simultaneously. Turn S901 (BUILT-IN BATTERY) to ON. Note: Be sure to place the set horizontally on the overall adjustment.
Overall adjustment mode
Manual mode
Overall adjustment mode
Manual mode
5-3. NV Initialize (Clear the Non-volatile memory)
5-3-1. How to NV Initialize
1. Set the Test mode.
2. Press the
3. Press
LCD display
000 Res OK?
kye and set the Overall adjustment.
VOL –
key on the remote control.
5-3-2. Changing Adjustment values
Adjustment settings are cleared when NV initialize is performed. So right after performing NV initialize you must rewrite the correct data according to the microcomputer version.
• Adjustment value change method 1
• Adjustment value change method 2 (Perform after the 7 charging adjustment)
5-3-3 Adjustment value change method 1
(when using Version 1.000)
1. In test mode press the
mode.
2. Set 861 as the item number. LCD display
3. Press the key.
4. Press the
LCD display
5. Press the key, and set in Adjustment change mode.
861 VarB1k 00
>
862 VarWrt 00
VOL +
key and set 862 as the item number.
key and then switch to Manual
862 88C6 FF
This section (address) flashes.
6. Press the x key.
LCD display
7. Press the
flashing data section while referring to the adjustment data change list. LCD display
VOL +
and
VOL –
keys and set the value in the
862 88C6 3F
Data value.
8. Press the key. and the address section starts flashing.
9. Press the
LCD display
VOL +
key and set the next adjustment address.
4. Press key on the remote control again.
LCD display
000 Res ***
000 Reset
5. Press x key. to terminate the Manual mode and return to the
Overall adjustment mode.
Note: The power, charging and temperature adjustment settings are
not cleared during NV initialize.
862 88C7 FF
-
This section (address) flashes.
10.Press the x key.
LCD display
After initialize is completed.
11. Repeat the adjustments in items 6 - 9 and set up through address 88D3 while referring to the Adjustment Data Change List.
11
MZ-E10
12.Press the key. (Address section starts flashing.)
LCD display
862 88D3 FC
This section (address) flashes.
13.Press the key to return to Manual mode.
LCD display
14.Press the key and write in the correction data.
15. Press the
LCD display
862 VarWrt 00
key and 862 as the item number.
>
862 VarWrt 01
Data value.
16.Press the key, and set in Adjustment change mode.
LCD display
862 88C6 FF
17. Press the x key . (FF section (data) flashes)
18.Press the
flashing data section while referring to the adjustment data change list. LCD display
VOL +
and
This section (address) flashes.
VOL –
key and set the value in the
862 88C6 07
Data value.
19.Press the key, and the address section starts flashing.
20.Press the
LCD display
VOL +
key and set the next adjustment address.
862 88C7 FF
This section (address) flashes.
21. Press the x key . (FF section (data) flashes)
LCD display
22.Press the
flashing data section while referring to the adjustment data change list. LCD display
VOL +
862 88C7 8D
and
VOL –
Data value.
key and set the value in the
24.Press the
LCD display
key to return to Manual mode.
862 VarWrt 01
Data value.
25.Press the key and write in the correction data.
26.Turn off the power.
Note: Always turn off the power after changing the adjustment set-
tings.
Adjustment Data Change List If adjustment data is VarWrt is 00
Version 1.000
Address Adjustment Data
88C6 3F 88C7 03 88C8 D6 88C9 22 88CA C4 88CB 37 88CC C2 88CD 04 88CE E8 88CF 42 88D0 6E 88D1 FC 88D2 71 88D3 FC
5-4. POWER SUPPLY VOLTAGE ADJUSTMENTS
5-4-1. Adjustment sequence
The adjustments should be always performed in the following se­quence:
1 LEG1 adjustment (item No.:741)
r
2 VC1 adjustment (item No.:742)
r
3 VC2 adjustment (item No.:743)
r
4 Class-D power supply adjustment (item No.:744)
5-4-2. REG1 adjustment method
1. Supply power (DC 6.0 volts) from the charging terminal CN951.
2. Set the Test mode.
3. Set the overall adjustment mode and press
key, item No. will change to 741.
LCD display
4. Connect a digital voltmeter to TP908 (REG1) on the main
board and adjust
(voltage down)key on the remote control.
741 Reg1 XX
VOL +
If adjustment data is VarWrt is 01
Version 1.000
Address Adjustment Data
88C6 07 88C7 8D 88C8 FF
88C9 FF 88CA FF 88CB FF 88CC FF 88CD FF
88CE FF
88CF FF
88D0 FF
88D1 FF
88D2 FF
88D3 FF
P.MODE/F
(voltage up) key and
VOL –
23.Press the key, and the address section starts flashing.
12
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