Text preview for : sony_MZ-E800_service_manual.pdf part of Sony MZ-E800 MZ-E800 PORTABLE MINIDISC PLAYER -
Service Manual
Back to : sony_MZ-E800_service_manu | Home
MZ-E800
SERVICE MANUAL
Ver 1.1 2001.02
E Model Tourist Model
Photo: Silver type
US and foreign patents licensed from Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mechanism MD Mechanism Type Optical Pick-up Mechanism Type
NEW MT-MZE800-170 LCX-2E
SPECIFICATIONS
System
Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs Wavelength: = 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 600 rpm to 2250 rpm Error correction Advanced Cross Interleave Reed Solomon Code (ACIRC) Sampling frequency 44.1 kHz Coding Adaptive TRansform Acoustic Coding (ATRAC) 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 Wow and Flutter Below measurable limit Outputs Earphones: stereo mini-jack, maximum output level 5 mW + 5 mW, load impedance 16 ohms
General
Power requirements Nickel metal hydride rechargeable battery One NH-14WM (supplied): 1.2V, 1,400 mAh One LR6 (size AA) battery (not supplied) Sony AC Power Adaptor* (supplied) connected to the DC IN 3V jack Battery operation time
Battery life*
Batteries Ni-MH rechargeable battery (NH-14WM) One (size AA) alkaline battery** One (size AA) alkaline battery** and a Ni-MH rechargeable battery (NH-14WM)
Playback Approx. 24 hours*
Dimensions Approx. 79.5 × 76.7 × 17.0 mm (w/h/d) (not including projecting parts and controls) Mass Approx. 110g (the player only) Supplied accessories Earphones with a remote control (1) Charging stand (1) Nickel metal hydride rechargeable battery (1) AC power adaptor (1) Dry battery case (1) Rechargeable battery carrying case (1) Carrying pouch (1) Design and specifications are subject to change without notice.
Approx. 37 hours Approx. 64 hours
About power sources
· For use in your house or car: Use the supplied AC power adaptor or the DCC-E230 car battery cord (not supplied) to supply power to the player. Do not use any other power supply.
* With a fully charged battery ** When using a LR6 (SG) Sony "STAMINA" alkaline dry battery (produced in Japan).
Polarity of the plug
Note
The battery life may be shorter depending on operating conditions, the surrounding temperature, and the battery type.
PORTABLE MINIDISC PLAYER
9-927-939-12
2001B0500-1 C 2001.2
Sony Corporation
Audio Entertainment Group General Engineering Dept.
TABLE OF CONTENTS 1. 2. 3. 4. 5. 6. SERVICING NOTES ............................................... 3 GENERAL ................................................................... 6 DISASSEMBLY ......................................................... 7 TEST MODE .............................................................. 12 ELECTRICAL ADJUSTMENTS ......................... 17 DIAGRAMS
21 23 25 27 29 31 33 35 40
Features
· Compact body with newly developed head-loading system. Insert or eject an MD with the slightest touch of a finger. · Simple-to-charge folding standup battery charger Insert the MD player into the folding standup battery charger for simple, onestep charging. By connecting an optional car battery cord to the battery charger, you can listen to the player in the car without worrying about battery rundown. · LCD display built into player for easy viewing in the car An easy-to-see LCD display built into the player allows you to monitor track numbers when the remote control display is out of view. · Personalized sound through Digital Sound Preset functions You can store two sets of sound quality adjustments (made during playback) to two switches. · Small body almost the size of a MiniDisc jacket · Low power-consumption design for extended battery life. · Easy-to-operate earphones remote control with backlit LCD · Shock-resistant memory offsets up to 40 seconds of optical read errors.
6-1. Block Diagram MAIN Section (1/2) ......................... 6-2. Block Diagram MAIN Section (2/2) ......................... 6-3. Block Diagram DISPLAY/KEY CONTROL/ POWER SUPPLY Section ........................................... 6-4. Printed Wiring Board ...................................................... 6-5. Schematic Diagram MAIN Board (1/4) .................... 6-6. Schematic Diagram MAIN Board (2/4) .................... 6-7. Schematic Diagram MAIN Board (3/4) .................... 6-8. Schematic Diagram MAIN Board (4/4) .................... 6-9. IC Pin Function Description ...........................................
7. 8.
EXPLODED VIEWS ................................................ 47 ELECTRICAL PARTS LIST ............................... 50
CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. 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 MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
2
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-2E) 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.
MAIN board open/close detect switch (S809) tape
· 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, fix a convex part of the open/close detect switch (S809 on MAIN board) with a tape in advance.
mechanism deck section
· Replacement of CXD2661GA-2 (IC601) and CXR701080016GA (IC801) used in this set requires a special tool. Therefore, they cannot be replaced. · On the set having the microcomputer version 1.000, the NV reset failure will occur. Therefore, in executing the NV reset during electrical adjustment, follow the troubleshooting method of NV reset to perform the NV reset (see page 17).
laser-tap
OPTICAL PICK-UP FLEXIBLE BOARD
3
OPERATION OF MECHANISM
· When a disc is loaded. Open the shutter 1. (Fig. 1) j When a disc is inserted, the Eject lever 2 moves in arrow a direction and the holder Assy 3 is unlocked. (Fig. 1 - Fig. 4) j The slider 4 slides in arrow b direction, and the holder Assy 3 moves down to the MAIN board side (downward). (Fig. 4) j When a disc lowers, the open/close detect switch (S809) turns on. (Fig. 1) j The Wake-up mode becomes active and the power circuit starts to operate.
open/close detect switch (S809) eject lever 2
shutter 1 ON
a
Disc insertion.
Lock
(Fig. 1)
eject lever 2 slider 4
Disc insertion. (Fig. 2)
Unlock
eject lever 2
slider 4
b
Moving down to MAIN board side (downward). holder assy 3
b
(Fig. 3)
slider 4 (Fig. 4)
4
· When a disc is unloaded. Open the shutter 1. (Fig. 5) j The slider 2 slides in arrow a direction, and the holder Assy 3 moves up. (Fig. 6, Fig. 8) j When a disc rises, the open/close detect switch (S809) turns off. (Fig. 5) j The optical block 4 moves in arrow b direction (inward). (Fig. 5) j The disc 6 is pushed out by the Eject lever 5 and ejected from the holder Assy 3. (Fig. 7) j The Sleep mode becomes active and the power supply stops.
open/close detect switch (S809) eject lever 5
shutter 1
OFF
b
optical block 4
Disc ejection. 6 (Fig. 5)
a
Unlock
eject lever 5
slider 2
(Fig. 6)
Lock eject lever 5 slider 2
Disc ejection. 6
(Fig. 7)
UP holder assy 3
a
slider 2 (Fig. 8)
5
SECTION 2 GENERAL
This section is extracted from instruction manual.
Parts and controls
The earphones with a remote control
A
The Player
5
B G H I J
1 2
6
C D E F
7 3 8
4 9
1 2 3 4 5 6 7 i (earphones) jack DIGITAL SOUND PRESET switch VOL (volume) +/ button Battery compartment (at the bottom) Mini-disc loading shutter (EJECT) HOLD (Locking the control) switch AVLS (Automatic Volume Limiter System) NORM/LIMIT switch 8 Mini-disc control button 9 Terminals for charging stand (at the bottom) 1 Earphones Can be replaced with optional earphones. 2 Stereo mini plug 3 HOLD (Locking the control) switch 4 X (pause) button 5 PLAYMODE button 6 DISPLAY button 7 x (stop) button 8 Control To play, press towards N/> during stop. Press towards N/> during play to search the beginning of the succeeding track; hold in this position to fast-foward. Press towards .during play to search the beginning of the preceding track; hold in this position to rewind. 9 VOL (volume) +/ button q; Display window
6
SECTION 3 DISASSEMBLY
· This set can be disassemble in the order shown below.
Set
Panel Assy, Rear
Front Panel Section
Shutter Section
Display Panel, Liquid Crystal (LCD901)
MD Mechanism Deck (MT-MZE800-170)
Main Board
OP Service Assy (LCX-2E)
"Motor, DC SSM17A/C-NP (Spindle) (M901)", "Motor, DC (Sled) (M902)"
Holder Assy
Note: Follow the disassembly procedure in the numerical order given.
PANEL ASSY, REAR
Note: In removing or mounting the rear panel, insert a disc into the mechanism deck so as to keep the holder Assy in down position.
1 Open the battery case lid.
2 claw
3 lid, battery case
4 two MI screws (1.4)
holder assy LCD flexible board
5 panel assy, rear
Note: In mounting the rear panel assy, take care not to get entangled with the LCD flexible board.
4 two MI screws (1.4)
7
FRONT PANEL SECTION
Note on installation front panel section: When mounting, shift S806, S807, and S808 in the arrow B direction, then shift the knobs (AVLS), (BASS BOOST), and (HOLD) in the arrow C direction so as to adjust each knob and switch position. 1 Open the shutter block assy in the direction of arrow A. Note: Claws (4 pcs) are very fragile and require careful handling. two claws
4 front panel section
3 boss
A
2 convex portion of screw hole
B
S806 S808 S807
C
3 boss 2 convex portion of screw hole
knob (BASS BOOST) knob (HOLD) knob (AVLS) knob (AVLS) knob (HOLD) two claws knob (BASS BOOST)
SHUTTER SECTION
· LCD flexible board mounting method. Meeting with the screw holes (2 pcs) and claws (4 pcs), mount the LCD flexible board and bend it into S shape before the connector (CN801), and then fix with the sheet (flexible) as shown in the figure. · Torsion spring mounting method. Mount the torsion spring on the bracket (A), and hook the part a to the shutter leg, and then hook the part b to the bracket (A) as shown in the figure.
sheet (flexible) screw bracket (A)
b
a
6 screw, step 5 spring, torsion
spring, torsion
bracket (FPC)
4 sheet (FPC), adhesive Note: Do not apply an excessive force when removing an adhesive sheet (FPC) from the bracket (FPC).
3 four claws
2 LCD flexible board (CN801) 7 shutter section
6 screw, step 1 sheet (flexible)
8
DISPLAY PANEL, LIQUID CRYSTAL (LCD901)
2 shutter
4 display panel, liquid crystal (LCD901)
3 Open the two claws.
5 holder (LCD)
Note: Do not open the claws (2 pcs) forcibly, as they are very fragile.
1 two MI screws (1.4)
MD MECHANISM DECK (MT-MZE800-170)
· Torsion spring (holder) mounting method.
1. Pull the torsion spring (holder) in arrow A direction.
2. Hook the part a in arrow B direction.
spring (holder), torsion
A 5 Remove the torsion spring (holder) from the bracket (A).
a
B
spring (holder), torsion
spring (holder), torsion
spring (holder), torsion
4 screw (MD), step
9 MD mechanism deck (MT-MZE800-170)
bracket (A)
· Torsion spring (MD) mounting method.
D
d
1. Let the part b through in arrow C direction.
8 motor flexible board (CN551)
C
b
shaft
1 MI screw (1.4 x 1.4) 6 7 OP flexible board (CN501)
Note: Place the part b on the shaft of mechanism spring (MD), torsion deck.
c
2 bracket (FPC)
2. Hook the part shaft.
c
to the
3. Hook the part d in arrow D direction. shaft
3 spring (MD), torsion
spring (MD), torsion
9
MAIN BOARD
2 bracket (B) block assy
1 screw (1.4), MI
4 boss
5 bracket (A) 7 case, battery
Note: In disconnecting the solder on the terminal board (minus) side, take care not to allow the soldering iron to touch the open/close detect switch (S809). 6 Remove the two solders of battery terminal (plus) assy and terminal board (minus).
open/close detect switch (S809)
bracket (A)
b a
1 three screws (1.4), MI 8 MAIN board
A
3 three screws (1.4), MI
MAIN board Note: In mounting the bracket (A) on the MAIN board, let the part a through under the MAIN board in arrow A direction, and then insert the part b into the MAIN board.
OP SERVICE ASSY (LCX-2E)
3 two screws 5 bearing (N)
7 OP service assy (LCX-2E) 4
6 screw block assy, lead
1 washer (0.8-2.5)
2 gear (SA)
10
"MOTOR, DC SSM17A/C-NP (SPINDLE) (M901)", "MOTOR, DC (SLED) (M902)"
4 motor, DC (sled) (M902) 3 three screws (M1.4)
3 two screws (M1.4)
1 washer (0.8-2.5)
5 motor, DC SSM17A/C-NP (spindle) (M901)
2 gear (SA)
HOLDER ASSY
3 holder assy
2
1 washer (0.8-2.5)
11
SECTION 4 TEST MODE
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 discriminate 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 allows each individual adjustment to be automatically adjusted. · Operation in the test mode is performed with the remote commander. A key having no particular description in the text, indicates a remote commander key.
Operation in Setting the Test Mode
· When the test mode becomes active, first the display check mode is selected. (Press the x key once, when the display check mode is not active) · 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
Setting Method of Test Mode
There are two different methods to set the test mode: 1 Short TAP801 (TEST) on the MAIN board with a solder bridge (connect pin y; of IC801 to the ground). Then, turn on the power.
MAIN Board (Component Side)
888
All lit All off
100
Microcomputer version display
Remote commander LCD display
All lit
888
F1SHUF REC
u
All off Microcomputer version display
006 V1.000
· When the X key is pressed and hold down, the display at that time is held so that display can be checked. Caution: On the set having the microcomputer version 1.000, the NV reset failure will occur. Therefore, in executing the NV reset during electrical adjustment, follow the troubleshooting method of NV reset to perform the NV reset (see page 17).
Releasing the Test Mode
For test mode set with the method 1: Turn off the power and open the solder bridge on TAP801 (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: Turn off the power.
TAP801 (TEST)
R205
Note: If electrical adjustment (see page 17) has not been finished completely, always start in the test mode. (The set cannot start in normal mode)
C204 C811
R1
C521
1
8
IC802
+ C813
C522 4 5
02
R620 X801
0 6
4 150 151 3 140 141 142 136 138 139 134 135 137
1 1 152 2
58 57 56 54 51 48 44 42 39 36 33 60 59 55 53 50 47 45 41 38 35 32
2 In the normal mode, turn on the HOLD switch on the set. While pressing the x key on the set, press the following remote commander keys in the following order:
N> t N> t . t . t N> t . t N> t . t X t X
R830
8
7
5 148 149
R802
12
Configuration of Test Mode [Test Mode $Display Check Mode%] Press the [VOL +] key [Manual Mode]
Press the x key
[VOL +] key:100th place of item number [Major item switching]
N key > x key
increase.
[VOL --] key:100th place of item number
decrease.
[Servo Mode] [Audio Mode] [Power Mode] [OP Alignment Mode] [Overall Adjustment Mode]
[VOL +] key:10th place of item number increase. [Medium item switching] [VOL --] key:10th place of item number
N key > x key
decrease.
Press the . or [VOL --] key Press the x key press the [DISPLAY] key
[Minor item switching]
N key: Unit place of item number >
increase.
[Self-Diagnosis Display Mode]
Press the x key Press the [DISPLAY] key for several seconds (about 3 seconds).
[Adjusted value variation] [VOL +] key:Increases the
adjusted value
[VOL --] key:Decreases the
adjusted value
[Key Check Mode]
Quit the key check
[Adjusted value write]
X key: When adjusted value is
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 and power supply/charging adjustments before performing automatic adjustments in the Overall Adjustment mode. · Transition method in Manual Mode 1. Setting the test mode (see page 12). 2. Press the [VOL +] key activates the manual mode where the LCD display as shown below.
Remote commander LCD display
changed: Adjusted value is written. When adjusted value is not changed: That item is adjusted automatically.
000 M a n u a l
3. During each test, the optical pick-up moves outward or inward while the N > or . key is pressed for several seconds 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.
13
5. The display changes a shown below each time the [DISPLAY] key is pressed. · Address & Adjusted Value Display
Remote commander LCD display
Self-Diagnosis Display Mode
· This set uses the self-diagnosis system in which if an error occurs in playback mode, the error is detected by the model control and power control blocks of the microprocessor and information on the cause is stored as history in EEPROM. By viewing this history in test mode, it helps you to analyze a fault and determine its location. 1. Setting the test mode (see page 12). 2. In the display check mode, press the [DISPLAY] key activates the self-diagnosis display mode where the LCD display as shown below.
Remote commander LCD display
011 C 6 8 S 0 1
address item number adjusted value
· Jitter Value & Adjusted Value Display
Remote commander LCD display
011 O F F J 0 1
jitter value item number adjusted value
000 1 s t 0 * *
history code error display code
· Block Error Value & Adjusted Value Display
Remote commander LCD display
011 0 6 3 B 0 1
block error value item number adjusted value
3. Then, each time the N > key is pressed, LCD display descends by one as shown below. Also, the LCD display ascends by one when the . key is pressed.
1
· ADIP Error Value & Adjusted Value Display
Remote commander LCD display
000 1 s t 0 * * 000 1 s t 1 0 0 000 N - 1 1 0 0 000 N - 1 2 0 0 000 N - 2 0 * * 000 N - 2 1 0 0 000 N - 2 2 0 0 000 R 0 0 0 0
1
011 0 5 9 A 0 1
ADIP error value item number adjusted value
000 1 s t 2 0 0 000 N 000 N 0** 100 200
· Item Title Display
Remote commander LCD display
011 L r e f P w 0 1
item title item number adjusted value
000 N
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).
000 N - 1 0 * *
4. Quit the self-diagnosis display mode, and press the x key to return to the test mode (display check mode).
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 17).
14
· Description of Indication History History code number 1st 1st 1st N N N 0 1 2 0 1 2 The first error Displays "00" Displays "00" The last error Displays "00" Displays "00" One error before the last. Displays "00" Displays "00" Two errors before the last. Displays "00" Displays "00" Total recording time (Displays "0000" in this set) Description
N-1 0 N-1 1 N-1 2 N-2 0 N-2 1 N-2 2 R
· Description of Error Indication Codes Problem No error Indication code 00 01 Servo error 02 03 04 Power error 22 Meaning of code No error Illegal access target address was specified High temperture Focus error Spindle error Low battery Description Normal condition Attempt to access an abnormal address High temperture Forcus could not be applied Abnormal lotation of disc Momentary interruption detected
Reset the error display code
After servicing, reset the error display code. 1. Setting the test mode (see page 12). 2. Press the [DISPLAY] key activates the self-diagnosis display mode. 3. To reset the error display code, press the X key (2 times) when the code is displayed (except "R 0000"). (All the data on the 1st, N, N-1, and N-2 will be reset)
15
Key Check Mode
This set can check if the set and remote commander function normally. · Setting Method of Key Check Mode 1. Setting the test mode (see page 12). 2. Press the [DISPLAY] key for several seconds (about 3 seconds) activates the key check mode. (At the last two digits, AD value of remote commander key line is displayed in hexadecimal)
Remote commander LCD display
4. When all the keys on the set and on the remote commander are considered as OK, the following displays are shown for 4 seconds. (The key pressed to enter the Key Check mode has been checked even if it is not pressed in this mode) Example1: When the keys on the set are considered as OK:
Set LCD display
888
All lit
Remote commander LCD display
000
**
888 SET OK **
**: AD value of the remote commander key (hexadecimal 00 to FF) Example2: When the keys on the remote commander are considered as OK:
Set LCD display
**: AD value of the remote commander key (hexadecimal 00 to FF) 3. When each key on the set and on remote commander is pressed, its name is displayed on the remote commander LCD. (The operated position is displayed for 4 seconds after the slide switch is operated. If any other key is pressed during this display, the remote commander LCD switches to its name display.) Example1: When >/N key on the set is pressed:
Remote commander LCD display
888
All lit
Remote commander LCD display
000 FF
**
888 RMC OK **
**: AD value of the remote commander key (hexadecimal 00 to FF) 5. When all the key have been checked, the system terminates the Key Check mode and return to the test mode (display check mode).
**: AD value of the remote commander key (hexadecimal 00 to FF) Example2: When N > key on the remote commander is pressed:
Remote commander LCD display
000 rPLAY
**
**: AD value of the remote commander key (hexadecimal 00 to FF)
16
SECTION 5 ELECTRICAL ADJUSTMENTS
Outline
· In this set, automatic adjustment of CD and MO can be performed by entering the test mode (see page 12). However, before starting automatic adjustment, the memory clear and power supply/charging adjustments must be performed in the manual mode. · A key having no particular description in the text, indicates a remote commander key. 3. Press the X key once more.
Remote commander LCD display
021 Res***
NV reset (after several seconds)
021 Reset!
4. Press the x key to quit the manual mode, and activate the test mode (display check mode). · Troubleshooting method of NV reset Executing the NV reset on the set having the microcomputer version 1.000 causes the adjusted values of item numbers 721, 722, and 757 to be cleared. In executing the NV reset on the set having the microcomputer version 1.000, follow the steps given below. This operation is not necessary for the set having the microcomputer version 1.100 or later. 1. Select the manual mode of the test mode (see page 13). 2. Set item number 757 and record the adjusted value. 3. Set item number 721 and record the adjusted value. 4. Set item number 722 and record the adjusted value. 5. Execute the NV reset. 6. Set item number 757, and change the value to the adjusted value recorded previously with [VOL +] key or [VOL --] key, and then press the X key. 7. Set item number 721, and change the value to the adjusted value recorded previously with [VOL +] key or [VOL --] key, and then press the X key. 8. Set item number 722, and change the value to the adjusted value recorded previously with [VOL +] key or [VOL --] key, and then press the X 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) · Recorded MO disc PTDM-1 (Part No. : J-2501-054-A) Available SONY MO disc (recorded) · Digital voltmeter 3. Unless specified otherwise, supply DC 1.5V from the battery terminal. 4. Switch position AVLS switch ................................................ NORM DIGITAL SOUND PRESET switch ........... OFF HOLD switch ............................................... OFF
Adjustment Sequence
Adjustment must be done with the following steps. 1. NV Reset (Memory clear) r 2. Power Supply Manual Adjustment Manual Mode r 3. Charging Manual Adjustment r 4. CD Overall Adjustment Overall Mode r 5. MO Overall Adjustment
Power Supply Manual Adjustment
· Adjustment sequence Adjustment must be done with the following steps. 1. Vc PWM Duty (L) adjustment (item number: 762) r 2. Vrem PWM Duty (L) adjsutment (item number: 764) r 3. Vc PWM Duty (H) adjustment (item number: 765) r 4. Vrem PWM Duty (H) adjustment (item number: 766) · Setting method of power supply manual adjustment 1. Select the manual mode of the test mode, and set item number 036 (see page 13).
Remote commander LCD display
NV Reset
Caution: On the set having the microcomputer version 1.000, the NV reset failure will occur. Therefore, in executing the NV reset during electrical adjustment, follow the troubleshooting method of NV reset to perform the NV reset. · Setting method of NV reset 1. Select the manual mode of the test mode, and set item number 021NV Reset (see page 13).
Remote commander LCD display
021 ResNV CC
2. Press the X key.
Remote Commander LCD display
036 Power CC
2. Press the X key. (The item number changes to 762 when X key is pressed)
021 ResOK?
17
· Adjustment method of Vc PWM Duty (L) (item number: 762)
Remote commander LCD display
· Adjustment method of Vrem PWM Duty (H) (item number: 766)
Remote commander LCD display
762 Vc1PWM **
**: Adjusted value
766 VrhVch
**: Adjusted value
**
1. Connect a digital voltmeter to the TP918 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.305 +0.06 V. 0
digital voltmeter MAIN board TP918 (VC) TP904 (SET GND)
1. Connect a digital voltmeter to the TP919 (VR) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.6+0.02 V. 0.01
digital voltmeter MAIN board TP919 (VR) TP904 (SET GND)
2. Press the X key to write the adjusted value. (The item number changes to 764 when X key is pressed) Adjustment and Connection Location: MAIN board (see page 19) · Adjustment method of Vrem PWM Duty (L) (item number: 764)
Remote commander LCD display
2. When press the X key to write the adjusted value, LCD displays as follows and power supply manual adjustment has completed.
Remote commander LCD display
036 ADJ OK
Adjustment and Connection Location: MAIN board (see page 19)
764 Vr1Vc1
**: Adjusted value
**
Charging Manual Adjustment
· Adjustment sequence Adjustment must be done with the following order. 1. Charging detection set value adjustment (item number 757) r 2. Normal charging current adjustment (item number 721) r 3. Trickle charging current adjustment (item number 722) · Adjustment method of charging detection set value (item number 757) 1. Connect a resistor 2.4 between TP901 (BATT+) and TP902 (BATT-) on the MAIN board. 2. Apply 2 V across TP901 (BATT+) and TP904 (SET GND), and across TP903 (2V IN) and TP904 (SET GND) on the MAIN board respectively. 3. Select the manual mode of the test mode, and set item number 757 (see page 13).
Remote commander LCD display
1. Connect a digital voltmeter to the TP919 (VR) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key +0.03 (voltage down) so that the voltage becomes 2.24 0 V.
digital voltmeter MAIN board TP919 (VR) TP904 (SET GND)
2. Press the X key to write the adjusted value. (The item number changes to 765 when X key is pressed) Adjustment and Connection Location: MAIN board (see page 19) · Adjustment method of Vc PWM Duty (H) (item number: 765)
Remote commander LCD display
757 Chg-dV **
**: Adjusted value
765 VchPWM
**: Adjusted value
**
1. Connect a digital voltmeter to the TP918 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key +0.075 (voltage down) so that the voltage becomes 2.7150 V.
digital voltmeter MAIN board TP918 (VC) TP904(SET GND)
4. Adjust with [VOL +] key or [VOL --] key so that the adjusted value becomes 1. If the adjusted value is already attained, go to the next adjustment item without pressing the X key. 5. Press the X key to write the adjusted value. Adjustment and Connection Location: MAIN board (see page 19)
2. Press the X key to write the adjusted value. (The item number changes to 766 when X key is pressed) Adjustment and Connection Location: MAIN board (see page 19)
18
· Adjustment method of normal charging current (item number 721) 1. Select the manual mode of the test mode, and set item number 721 (see page 13).
Remote commander LCD display
Adjustment and Connection Location:
MAIN Board (Conductor side)
TP902 (BATT )
· Adjustment Method of Overall CD and MO Adjustment Mode 1. Setting the test mode (see page 12). 2. Press the [VOL --] key activates the overall adjustment mode.
Remote commander LCD display
· Overall CD and MO adjustment items 1. Overall CD adjustment items
Item No. 312 313 314 328 321 323 332 336 344 345 521 522 341 CD TWPP gain adjustment CD tracking error gain adjustment CD tracking error offset adjustment CD ABCD level adjustment CD focus gain adjustment CD tracking gain adjustment CD two-axis sensitivity adjustment CD focus bias adjustment Description CD electrical offset adjustment
721 ChgPW1 **
**: Adjusted value
000 Assy11
3. Insert CD disc in the set, and press the . key to set the Overall CD Adjustment mode. Automatic adjustments are made.
Remote commander LCD display
2. Connect a digital voltmeter between TP901 (BATT+) and TP902 (BATT-) on the MAIN board, and adjust with [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 1.236±0.036 V. If the voltage is already adjusted, go to the next adjustment item without pressing the X key.
digital voltmeter MAIN board TP901 (BATT +) TP902 (BATT )
TP904 (SET GND)
XXX CD RUN
XXX: Item number for which an adjustment is being executed. 4. If NG in the overall CD adjustments, return to NV reset (see page 17) and perform the adjustment again.
Remote commander LCD display
000 *** NG
***: NG item number.
TP918 (VC) TP903 (2V IN) TP919 (VR) TP901 (BATT +)
2. Overall MO adjustment items
Item No. 112 113 114 118 221 223 232 236 244 245 121 122 134 131 132 136 144 145 141 Low reflective CD tracking error gain adjustment Low reflective CD tracking error offset adjustment Low reflective CD ABCD level adjustment Low reflective CD focus gain adjustment Low reflective CD tracking gain adjustment MO tracking error gain adjustment MO tracking error offset adjustment MO TWPP gain adjustment MO TWPP offset adjustment MO ABCD level adjustment MO focus gain adjustment MO tracking gain adjustment MO focus bias adjustment Description
3. Press the X key to write the adjusted value. · Adjustment method of trickle charging current (item number 722) 1. Select the manual mode of the test mode, and set item number 722 (see page 13).
Remote commander LCD display
5. If OK through the overall CD adjustments, then perform overall MO adjustments.
Remote commander LCD display
MO electrical offset adjustment
Overall Adjustment Mode
· Configuration of overall adjustment
N > key Overall adjustment mode . key (Title display)
000 CD OK
6. Insert MO disc in the set, and press the N > key to set the Overall MO Adjustment mode. Automatic adjustments are made.
Remote commander LCD display
722 ChgPW2 **
**: Adjusted value
2. Connect a digital voltmeter between TP901 (BATT+) and TP902 (BATT-) on the MAIN board, and adjust with [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 0.168+0.036 V. 0 If the voltage is already adjusted, go to the next adjustment item without pressing the X key.
digital voltmeter MAIN board TP901 (BATT +) TP902 (BATT )
x key
CD overall adjusting
XXX MO RUN
XXX: Item number for which an adjustment is being executed. 7. If NG in the overall MO adjustments, return to NV reset (see page 17) and perform the adjustment again.
Remote commander LCD display
CD overall adjustment NG
All item OK
NG item exists or x key
x key
CD overall adjustment OK N > key
000 *** NG
***: NG item number. 8. If OK through the overall MO adjustments, press the x key to return to the test mode and terminate the Overall Adjustment mode.
Remote commander LCD display
3. Press the X key to write the adjusted value.
MO overall adjusting
NG item exists or x key
MO overall adjustment NG MO overall adjustment OK
000 MO OK
x key
x key
[Test mode $display check mode%]
Note: Adjust the CD first, when performing adjustment.
19
20
MZ-E800 SECTION 6 DIAGRAMS
6-1. BLOCK DIAGRAM MAIN Section (1/2)
OPTICAL PICK-UP BLOCK (LCX-2E)
RF AMP, FOCUS/TRACKING ERROR AMP IC501 4 VREF + IY IX JX JX JY JX JY IX IY IX A B
DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER, D/A CONVERTER, 16M BIT D-RAM IC601 (1/2)
· SIGNAL PATH : PLAYBACK
HEADPHONE AMP IC301 J301 4
AOUT R 27
21
IN R
OUT R
i
(HEADPHONE)
LD
TRK-
2-AXIS DEVICE FOCUS COIL
FCS+
DO SK DI XCS
TRACKING COIL
05
21
+
MON
VC 31 OFTRK 26 20 PD-O XRST 25
89 VC 4 MNT2 12 XRST
AUTOMATIC POWER CONTROL Q501
MUTE XHP STB BEEP RMC KEY RMC DTCK XWAKE RMC
+
D
+
F
C
+
A BC D
+ AOUT L 24 8 9 10 11 12 14 5 6 IY IX JX JY A B C D A-C RF OUT PEAK /BOTM PEAK 33 78 RFI 84 PEAK 85 BOTM 86 ABCD 87 FE 96 TE 99 ADIP 106 APCREF MNT3 5 SWDT 6 SCLK 7 XLAT 8 SRDT 10 SENS 11 SQSY 13 XINT 16 CS DSP 32 REFERENCE VOLTAGE SWITCHING Q301 22 + + + S0 S1 TRK+ 3 2 4 1 FCSRF,AMP, FOCUS ERROR, TRACKING ERROR 29 BOTM 28 ABCD FE 41 42 13 D-C 7 18 PD-NI TE 1 ADIP IN 44 TPP/WPP ADIP 21 PD-NI 19 APC SERIAL INTERFACE S-MONITER SBUS 23 SCK 24 S MON 43 EEPROM IC802
IN L
OUT L
2
BEEP OUT B BEEP OUT A BEEP
23 24
KEY DATA VC B+
BEEP 13 VREF IN
15 STB 18 MUTE 17
22 23 18 85 19 54 52 12 13 28 11 33 53 55 29 2 82 102 103 79 FOK SO0 SCK0 XLAT SIO SENSE SQSY XINT XCS DSP OFTRK VREF MON SSB DATA SSB CLK S MON
RMCWK CTL 39
REMOTE KEY CONTROL Q802
68 XICRST 36 PD S0 38 PD S1 119 XCS NV SYSTEM CONTROLLER IC801 (1/3)
TRK+, TRK-, FSC+, FCS-
A (Page 23)
22
MZ-E800
6-2.
BLOCK DIAGRAM MAIN Section (2/2)
DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER, D/A CONVERTER, 16M BIT D-RAM IC601 (2/2) SLED VOLTAGE MONITOR IC552 5 6 3 2 7 139 SLCV
1
138 SLCU
FOCUS/TRACKING COIL DRIVE, SPINDLE/SLED MOTOR DRIVE IC551 OSCI 19 TRK+ 30 FO3 PRE DRIVER TRK32 RO3 HI-BRIDGE CONTROL FI3 21 RI3 22 OSCO 20 110 TFDR 109 TRDR X601 22.5792MHz
A
TRK+, TRKFCS+, FCS-
(Page 22)
SPINDLE SERVO DRIVE SWITCH IC504 FCS+ 7 FO1 PRE DRIVER HI-BRIDGE CONTROL FI1 16 RI1 15 111 FFDR 112 FRDR SPVS 124 SPDU 127 1 6 2 7 5 3 X801 16.9344MHz 45 XTAL
FCS-
5
RO1
M902 (SLED)
46 EXTAL 11 9 FO2 RO2 PRE DRIVER HI-BRIDGE CONTROL RI2 13 FI2 14 PWM24 25 134 SLDV 133 SLDU 141 SLVS SPDV 128 FO4 26 RO4 28 COM 37 CPW1 38 CPV1 PRE DRIVER HI-BRIDGE CONTROL FI4 23 RI4 24 COW0 135 SLDW 140 SLCW SPDW 129 SPINDLE SERVO DRIVE SWITCH IC505 1 6 2 7 5 3
M
SYSTEM CONTROLLER IC801 (2/3)
34
132 SPCW
COV0
39
35
131 SPCV 130 SPCU 49 35 26 25 24 67 SPDL START SW SLD1 MON CLV W CLV V CLV U SPDL PWM
M901 (SPINDLE)
40 46 44 42
CPU1 UO VO WO PRE DRIVER 3 PHASE CONTROL
COU0
36
W1 48 V1 1 U1 2 PWM1 3 OE BIAS 17
27 XRST MTR DRV
05
23
24
MZ-E800
6-3.
BLOCK DIAGRAM DISPLAY/KEY CONTROL/POWER SUPPLY Section
SYSTEM CONTROLLER IC801 (3/3)
SEG0 SEG5 COM0 COM3
69
COM0 COM3 LIQUID CRYSTAL DISPLAY LCD901 BATT HEADPHONE AMP (IC301) , MOTOR/COIL DRIVE (IC551) B+
110 115
SEG0 SEG5
S801 805 51 XWAKE SET 86 SET KEY1
VC SYSTEM CONTROLLER (IC801) EEPROM (IC802) B+
B+ SWITCH Q906, 907
B+ SWITCH Q908, 909
DC/DC CONVERTER D903, L902, Q905
S801 S804
S802
S803 S805 +
XRST 43
RESET SIGNAL GENERATOR IC905
3 1
CE FB ERROR AMP
POWER CONTROL IC904 PWM COMPARATOR OSC BUFFER, DRIVER EXT 5
VOL
PWM/PFM CONTROLLER
VC PWM 66 84 OPEN CLOSE SW 50 XWAKE CLOSE VOLTAGE DETECT IC906 118 XAVLS VRM RF AMP (IC501), DSP (IC601) B+ B+ SWITCH Q912 DC/DC CONVERTER D904, L903, Q910 DRY BATTERY SIZE "AA" (IEC DESIGNATION R6) 1PC. 1.5V
S809 (OPEN/CLOSE) S807 AVLS LIMIT NORM S806 DIGITAL SOUND PRESET OFF 1 2 S808 HOLD OFF HOLD
DSP (IC601) 1.7V 116 DBB0 117 DBB1 VR PWM 65 DSP (IC601), REMOTE COMMANDER B+ 73 XHOLD SW
+1.7V REGULATOR IC902
3 1
CE FB ERROR AMP
POWER CONTROL IC907 PWM COMPARATOR OSC BUFFER, DRIVER EXT 5 BATTERY CASE
PWM/PFM CONTROLLER
B+ SWITCH Q803
VC B+ SWITCHING Q911
VG MOTOR/COIL DRIVE (IC551) B+
DC/DC CONVERTER D902, IC903, L901 CHARGE RECHARGEABLE BATTERY (NICKEL-METAL) NH-14WN 1.2V 1400mAh
XSLEEP 40
60 XTEST TAP801 (TEST) CHG MON 81 B+ SWITCH Q904 XWAKE DC IN 56 CHG PWM 64 CHARGE CONTROL IC901 (1/2), Q903 VRM B+
CHARGE MONITOR IC901 (2/2)
CHARGE ON/OFF SWITCH Q902
DC IN DETECT SWITCH Q901 RY901 RELAY DRIVE Q913 Q915
BATT
DC IN 3V 2V IN
+
XCHG PWR 57 RLY CTL 59 REG CTL 58 VB MON 80 05 BATT B+
REG CTL SET GND CHARGE STAND
25
26
6-4.
PRINTED WIRING BOARD
1 2 3 4 5 6 7 8
J301
MZ-E800
9
i
10
11
12
13
14
15
16
17
18
A
(HEADPHONE)
MAIN BOARD (COMPONENT SIDE)
COM S808 HOLD HOLD T OFF X601 C522 R205
MAIN BOARD (CONDUCTOR SIDE)
+ R302 R301
Q301
BCE
8
5
C204
R201
C521
1
8
C351 C101
R206
C201
C304
8
5
R101
IC504
C854 C853 C852
C306 18 13 12 + R305 E B S806 DIGITAL SOUND PRESET OFF t 1 t 2 1 4 1
IC505
4 S807 AVLS NORM t LIMIT
C811
+ C813
R603
DATA
GND
VDD
KEY
4
5
R105
C104
D201
+ C606 R620 TAP801 (TEST) X801
R203
R830
R103
R833
157 158 35 34 31 27 23 24 153 19 16 13 10 6 41 40 144 43 42 37
4 150 151 3 140 141 142 136 138 139 134 135 137 131 132 133 128 129 130
D101
R107
39 38 147 36 32 28 26 25 154 18 15 12 11 1 152 2
L
1
6
R813
C301
D905
R815
C801
44 45 46 49 48 47 52 51 50 54 55 53 58 57 56 61 60 59 62 63 64 65 66 68 69 67 146
60 59 55 53 50 47 45 41 38 35 32 28 29 63 62 61 52 49 46 43 40 37 34 27 26 25 64 65 66 69 68 67 72 71 70 74 75 73 78 77 76 81 80 79 83 84 82 22 23 24 19 21 20 3 2 1 6
K
C102 +
R207
R851
C812
C
C802 R831
R838
C601
CN801 (CHASSIS) 1 LCD901 LIQUID CRYSTAL DISPLAY
R852 R853
IC601
*
R814
R816
R812
C807
C604 C608
125 127 126 122 123 124 119 120 121 115 117 118 113 114 116 108 111 112
C202
10 11 12 7 4 8 6 9 5 3 + C556
5
C805
IC801
*
16 17 18 13 14 15 4 5
S809 (OPEN/CLOSE)
C607
58 57 56 54 51 48 44 42 39 36 33 31 30
2
7
A
C203
C603
C103
C302
A
R801
C605
R832
R834
1
8
C307
FB802
K
155 156 143 33 30 29 22 21 20 17 14
9
8
7
5 148 149
D
+ C303
Q803
RY901
R836 7
FB801
IC301
24
R835
K A K
Q802
K K R829 C C806
R802
R826
R604 S803 . S802 >N
R854
S801 x
R941
R811
D906
R607
R905
C804
A
R810
162 163 145 75 79 81 84 97 90 93 94 99 101 105 107 167 168
88 90 93 96 99 102 105 108 109 113 117 119 120 + C555
R809
ECB
VOL
R806 C803
C808
C613
R827
R606
160 161 72 74 77 80 83 86 89 91 95 98 102 104 106 165 166
87 89 92 95 98 101 104 107 110 114 116 118 1
Q901
S804
S805 +
L553
L554
C616
D
71 70 159 73 76 78 82 85 88 92 96 97 100 103 164 109 110
86 85 91 94 97 100 103 106 111 112 115 2
Q903
B C
10
R807
C611
R605 TP904 (SET GND) TP901 (BATT+)
K
R608
R612
R614
C609
C614
C615
R515
C526
R823
D601
R825
+ C610
R824
R904
E
C
B
A
R611
R601
C612 R504
R609
C618
C519
C515
C516
C517
C809
+ C554
12
1 48
L552
R630
C619
C510
R551
E
C509
C511
C513
13 4 1
R903 R907
Q902
K
C508
MOTOR FLEXIBLE BOARD
1-678-525-
C561
C529 +
+ C553
44
23
IC551
L551
R913 C907
11
R503
C551
R914
R915
R916
C
IC552
R552
24 25 C552 36 37
R521
C559
IC501
B
Q501
E
C557
1 2
5
8
C904
C558
8
1
R518
R517
R505
R516
C530
C527
D
1
22
RB552
RB551
5 C903 R910 R908
4 R912
R502
C501
C503
C504
C505
C507
S
RB553
R909
C905
F
R519
IC901
G
R911
C906
M901 (SPINDLE) 3 4 5
R501
C502
C506
Q904
1
C901
M
6 7 8 CN551
M902 (SLED)
5
G
OPTICAL PICK-UP BLOCK (LCX-2E) CN501 10 8 15
1
2
1
2
C909
IC905
3
C908
R923
H
C925 + R939 A + C913 + C512
IC902
R924
1
20
3
R922
D
Q907
ECB R921 G
Q906
S RECHARGEABLE BATTERY (NICKEL-METAL) NH-14WM 1.2V 1400mAh
TP918 (VC) TP903 (2V IN)
E
TP902 (BATT)
D902
K L501
TP919 (VR)
D
Q908
K D903 R820
3 1
R940
I
C912
G C914 3 1
S
IC903
4 5 L902
C916
IC904
A
4 S 5 G
R917
C518
ECB
L901
Q909
R918
R919
R927
3
Q905
S
R926
1
J
17 + C9
L903
D
D
Q915
R935
IC906
2 DRY BATTERY SIZE "AA" (IEC DESIGNATION R6) 1PC. 1.5V
R938
R928
D
R936 E S B
R932
R929 R930 C918
Q912
G
Q914
DC IN 3V C R902 R901
Q911
BCE C922
G 3 1
C923
G
R920
K
S
R933
D904
C920 +
C
(CHASSIS)
+
Q910
D 4
IC907
R931
5 B
Q913
E
K
05
A
C902
1-678-524-
11 (11)
BATTERY CASE
BATTERY STAND
R602
B
K
C305
IC802
R
A
R106
S
G
19
C851
D855
+
+
+
1-678-524-
11 (11)
(CHASSIS)
· Semiconductor Location
Ref. No. Note on Printed Wiring Board: · Y : parts extracted from the conductor side. f · : internal component. · : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) Caution: Pattern face side: (Conductor Side) Parts face side: (Component Side) · MAIN board is four-layer printed board. However, the patterns of layers 2 and 3 have not been included in this diagrams. * Replacement of IC601 and IC801 used in this set requires a special tool. Therefore, it cannnot be replaced. · Lead Layouts
surface
Location C-11 B-11 E-3 B-14 H-3 I-5 K-4 C-13 D-8 B-12 F-2
Ref. No. IC504 IC505 IC551 IC552 IC601 IC801 IC802 IC901 IC902 IC903 IC904 IC905
Location B-16 B-17 E-5 E-4 C-2 D-4 B-4 F-8 H-7 I-4 I-5 H-8
Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated.
D101 D201 D601 D855 D902 D903 D904 D905 D906 IC301 IC501
Ref. No. IC906 IC907 Q301 Q501 Q802 Q803 Q901 Q902 Q903 Q904 Q905
Location J-8 K-6 A-13 F-3 B-14 B-5 D-11 E-8 D-12 F-7 J-5
Lead layout of conventional IC
CSP (chip size package)
Ref. No. Q906 Q907 Q908 Q909 Q910 Q911 Q912 Q913 Q914 Q915
Location H-8 H-8 I-8 I-8 K-5 K-6 J-7 K-7 J-7 J-8
27
28
MZ-E800
6-5. SCHEMATIC DIAGRAM MAIN Board (1/4) · See page 37 for Waveforms. · See page 38 for IC Block Diagram.
(Page 31)
(Page 33)
(Page 35) (Page 36)
Note on Schematic Diagram: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. · % : indicates tolerance. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
· A : B+ Line. · Power voltage is dc 1.5V and fed with regulated dc power supply from battery terminal. · Voltages and waveforms are dc with respect to ground in playback mode. no mark : PLAYBACK : Impossible to measure · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances.
· Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. · Circled numbers refer to waveforms. · Signal path. E : PLAYBACK
29
30
6-6.
SCHEMATIC DIAGRAM MAIN Board (2/4)
· See page 37 for Waveforms.
· See page 38 for IC Block Diagram.
MZ-E800
(Page 33) (Page 30)
(Page 33)
(Page 34) (Page 36) Note on Schematic Diagram: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. · % : indicates tolerance. f · : internal component. · C : panel designation. · A : B+ Line.
(Page 36) · Power voltage is dc 1.5V and fed with regulated dc power supply from battery terminal. · Voltages and waveforms are dc with respect to ground in playback mode. no mark : PLAYBACK : Impossible to measure · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. · Circled numbers refer to waveforms. · Signal path. E : PLAYBACK * Replacement of IC601 used in this set requires a special tool. Therefore, it cannnot be replaced. · The voltage and waveform of CSP (chip size package) cannot be measured, because its lead layout is different form that of conventional IC.
31
32
MZ-E800
6-7.
SCHEMATIC DIAGRAM MAIN Board (3/4)
· See page 37 for Waveforms.
(Page 32)
(Page 32)
(Page 32)
Note on Schematic Diagram: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. f · : internal component. · C : panel designation. · A : B+ Line. · Power voltage is dc 1.5V and fed with regulated dc power supply from battery terminal. · Voltages and waveforms are dc with respect to ground in playback mode. no mark : PLAYBACK ( ) : CHARGE : Impossible to measure · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. · Circled numbers refer to waveforms. * Replacement of IC801 used in this set requires a special tool. Therefore, it cannnot be replaced. · The voltage and waveform of CSP (chip size package) cannot be measured, because its lead layout is different form that of conventional IC.
(Page 30)
(Page 36)
33
34
6-8.
SCHEMATIC DIAGRAM MAIN Board (4/4)
· See page 37 for Waveforms.
· See page 39 for IC Block Diagrams.
MZ-E800
(Page 29)
(Page 31)
(Page 34)
(Page 32)
(Page 30)
Note on Schematic Diagram: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. · % : indicates tolerance. · C : panel designation.
· A : B+ Line. · Total current is measured with MD installed. · Power voltage is dc 1.5V and fed with regulated dc power supply from battery terminal. · Voltages and waveforms are dc with respect to ground in playback mode. no mark : PLAYBACK ( ) : CHARGE : Impossible to measure
· Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. · Circled numbers refer to waveforms.
35
36
· Waveforms
1 IC501 1 (TE), IC601 oh (TE) (PLAYBACK mode) 200 mV/DIV, 50 ns/DIV 5 IC504 1, 2, IC551 3 (PWM1), IC601 (SPVS), IC801 yj (SPDL PWM) (PLAYBACK mode) 2 V/DIV, 10 µs/DIV 9 IC801 rg (XTAL) 1 V/DIV, 20 ns/DIV
· IC Block Diagrams IC301 TA2131FL (EL)
BST SW BEEP IN VREF IN PW SW MT SW GND
18
17 MT SW
16 BST SW
15 BEEP
14
13 V REF 12 VREF 11 LPF1
2.3 Vp-p
Approx. 30 mVp-p
MT TC 19 VCC1 20
PW SW
2.3 Vp-p
ADD 10 BST NF1 BST1
INB 21
59.1 ns
INA 22
9 LPF2
11.2 µs
2 IC501 8, 9, 0, qa (IY, IX, JX, JY) (PLAYBACK mode) 100 mV/DIV, 1 µs/DIV 6 IC504 5, 6, IC505 1, 2, 5, 6, IC551 1, 2, rk (V1, U1, W1), IC601 , , (SPDU, SPDV, SPDW), IC801 wf, wg, wh (CLV U, CLV V, CLV W) (PLAYBACK mode) 1 V/DIV, 10 ms/DIV 0 IC904 5 (EXT) 1 V/DIV, 5 µs/DIV
BEEP 23 OUTB BEEP 24 OUTA 1
VCC2
PW A
PW B
BST2
8 BST NF2 7 BST OUT BST AGC
2
OUTA
3
PWR GND
4
OUTB
5
DET
6
AGC IN
Approx. 150 mVp-p
2.7 Vp-p
IC501
2.3 Vp-p
10 µs
SN761056CDBT
44 ADIP 43 S-MON A+B+C+D I+J NPP TON CSL Aw+Dw TON Peak TON Botm ADIP TE TE TEMP TWpp PK/BTM Aw CSLO VREF075 A-C D-C Malfa Mij AwBPF Dw DwBPF
11 ms
3 IC501 ed (RF OUT), IC601 uk (RFI) (PLAYBACK mode) 400 mV/DIV, 5 µs/DIV 7 IC551 ef, eg, eh (COW0, COV0, COU0), IC601 , ,
TE 1 REXT 2 Wpp-LPF 3 VREF 4 C 5 D 6
S-MONITOR
Approx. 1.3 Vp-p
2.3 Vp-p
2.3 Vp-p
D-C 7 Tpp/Wpp 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 FE ABCD AVCC OFC-1 OFC-2 PS LP EQ AGND RFOUT CCSL2 VC VREF075 PEAK BOTM
10 µs
12 ms
RF Iy 8
4 IC501 rs (FE), IC601 ij (FE) (PLAYBACK mode) 20 mV/DIV, 200 ns/DIV
8 IC601 w; (OSCO) 1 V/DIV, 20 ns/DIV
Ix 9 Jx 10 Jy 11 A 12 A-C 13
FE ABCD
PEAK/BOTM
2.5 Vp-p
Approx. 20 mVp-p
B 14 TON-C CIG CDN PD-I PD-NI PD-O 15 16 17 18 19 20
27 DGND T-ON APC 25 XRST 24 SCK 23 SBUS 26 OFTRK
44.3 ns
ADIP 21 DVDD 22 ADIP
SERIAL I/F
37
38
IC551
XC111256FTAEB
GNDUV VMVW GNDW CPWI
38
CPUI
CPVI
48 VC VC VG
47
46
45
44
43
42
41
40
39
37
COM
+
VMU
WO
UO
VO
WI
36 CPUO
VI 1 UI 2 PWM 3
3PHASE CONTROL
PRE DRIVER
+ +
35 CPVO
34 CPWO
VM1 4 VG VC VC VC VC VG 33 VM3
RO1 5 PGND1 6 FO1 7
PRE DRIVER
H-BRIDGE CONTROL
H-BRIDGE CONTROL
PRE DRIVER
32 RO3 31 PGND3 30 FO3
VM12 8
VG
VC
VC VC BIAS ROE
VC
VC
VG
29 VM34 H-BRIDGE CONTROL PRE DRIVER 28 RO4 27 PGND4
RO2 9 PGND2 10 FO2 11
PRE DRIVER
H-BRIDGE CONTROL VC VG
VM2 12
26 FO4 25 PWM24 13 14 15 16 17 18 19 20 21 22 23 24
GND
RI2 FI2
RI1 FI1 OE
VG
FI3 RI3
FI4 RI4
VC
IC903
CE 1
XC6383C601MR
CHIP ENABLE VDD VREF
IC904, 907
XC6368B101MR
PHASE COMPENSATION
VOUT 2
VLX LIMITER BUFFER
5 LX
FB 1 VDD 2
ERROR AMP +
PWM COMPARATOR + BUFFER, DRIVER 5 EXT
+ NC 3 +
2STEP PFM CONTROL OSC 100/180kHz 4 VSS
CE 3
REFERENCE VOLTAGE WITH SOFT START, CHIP ENABLE
PWM/PFM CONTROLLER
RAMP WAVE GENERATOR, OSC
4 GND
39
6-9. IC PIN FUNCTION DESCRIPTION
· IC501 SN761056CDBT (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Pin Name TE REXT WPPLPF VREF11 C D D-C IY IX JX JY A A-C B TON-C CIG CDN PD-NI PD-I PD-O ADFG DVDD SBUS SCK XRST OFTRK DGND BOTM PEAK VREF075 VC CCSL2 RF OUT AGND EQ LP PS OFC-2 OFC-1 AVCC ABCD FE S-MON ADIP-IN I/O O -- -- O I I I I I I I I I I -- -- -- I I O O -- I/O I I I -- O O -- O -- O -- -- -- -- -- -- -- O O O I Description Tracking error signal output to the CXD2661GA (IC601) Connected to the external resistor for the ADIP amplifier control Connected to the external capacitor for low-pass filter of the TPP/WPP Reference voltage output terminal (+1.1V) Signal (C) input from the optical pick-up detector Signal (D) input from the optical pick-up detector Signal (D) input from the optical pick-up detector (AC input) I-V converted RF signal (IY) input from the optical pick-up block detector I-V converted RF signal (IX) input from the optical pick-up block detector I-V converted RF signal (JX) input from the optical pick-up block detector I-V converted RF signal (JY) input from the optical pick-up block detector Signal (A) input from the optical pick-up detector Signal (A) input from the optical pick-up detector (AC input) Signal (B) input from the optical pick-up detector Connected to the external capacitor for the TON hold Connected to the external capacitor for low-pass filter of the NPP divider denominator Connected to the external capacitor for low-pass filter of the CSL divider denominator Light amount monitor input terminal (non-invert input) Light amount monitor input terminal (invert input) Light amount monitor output terminal ADIP duplex FM signal (22.05 kHz ± 1 kHz) output to the CXD2661GA (IC601) Power supply terminal (+2.4V) (digital system) Two-way SSB serial data bus with the system controller (IC801) SSB serial clock signal input from the system controller (IC801) Reset signal input from the system controller (IC801) "L": reset Off track signal input from the CXD2661GA (IC601) Ground terminal (digital system) Light amount signal (RF/ABCD) bottom hold output to the CXD2661GA (IC601) Light amount signal (RF/ABCD) peak hold output to the CXD2661GA (IC601) Connected to the external capacitor for the internal reference voltage Middle point voltage (+1.2V) generation output terminal Connected to the external capacitor for low-pass filter of the TPP/WPP Playback EFM RF signal output to the CXD2661GA (IC601) Ground terminal (analog system) Connected to the external capacitor for the RF equalizer Connected to the external capacitor for the RF equalizer Connected to the external capacitor for the RF equalizer Connected to the external capacitor for the RF AC coupling Connected to the external capacitor for the RF AC coupling Power supply terminal (+2.4V) (analog system) Light amount signal (ABCD) output to the CXD2661GA (IC601) Focus error signal output to the CXD2661GA (IC601) Servo signal monitor output to the system controller (IC801) ADIP duplex FM signal (22.05 kHz ± 1 kHz) input terminal (not used in this set)
40
· IC601 CXD2661GA-2 (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER, D/A CONVERTER, 16M BIT D-RAM) Pin No. 1 2, 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36, 37 38 39 to 41 42 43 44 45 46 Pin Name VDCO MNT0, MNT1 MNT2 MNT3 SWDT SCLK XLAT VSCO SRDT SENS XRST SQSY MTFLGL TST1 XINT TST2 VDIOSC OSCI OSCO VSIOSC DAVSSL VREFL AOUTL DAVDDL DAVDDR AOUTR VREFR DAVSSR VSC1 XTSL CD DSP TST4 DOUT DT72 VDC1, VDC2 DATAI TST5 to TST7 DADT LRCK VSC2 XBCK FS256 I/O -- O O O I I I -- O O I O O I O I -- I O -- -- O O -- -- O O -- -- I I I O O -- I I O O -- O O Description Power supply terminal (+1.7V) (for internal logic) Operation monitor signal output terminal Not used (open) Off track signal output to the SN761056CDBT (IC501) and system controller (IC801) Focus OK signal output to the system controller (IC801) "H" is output when focus is on ("L": NG) Serial data input from the system controller (IC801) and EEPROM (IC802) Serial clock signal input from the system controller (IC801) Serial data latch pulse input from the system controller (IC801) Ground terminal (for internal logic) Serial data output to the system controller (IC801) and EEPROM (IC802) Internal status (SENSE) output to the system controller (IC801) Reset signal input from the system controller (IC801) "L": reset Subcode Q sync (SCOR) output to the system controller (IC801) "L" is output every 13.3 msec. Almost all, "H" is output Muting applied to analog signal input in non-signal status causes the signal to be "H" automatically Not used (open) Input terminal for the test (normally : fixed at "L") Interrupt status output to the system controller (IC801) Input terminal for the test (normally : fixed at "L") Power supply terminal (+2.4V) (for oscillator cell) System clock input terminal (22.5792 MHz) System clock output terminal (22.5792 MHz) Ground terminal (for oscillator cell) Ground terminal (for internal D/A converter L-ch) Reference voltage output terminal (for internal D/A converter L-ch) Playback analog signal (L-ch) output to the headphone amp (IC301) Power supply terminal (+2.4V) (for internal D/A converter L-ch) Power supply terminal (+2.4V) (for internal D/A converter R-ch) Playback analog signal (R-ch) output to the headphone amp (IC301) Reference voltage output terminal (for internal D/A converter R-ch) Ground terminal (for internal D/A converter R-ch) Ground terminal (for internal logic) Input terminal for the system clock frequency setting "L": 45.1584 MHz, "H": 22.5792 MHz (fixed at "H" in this set) Chip select signal input from the system controller (IC801) Input terminal for the test (normally : fixed at "L") Digital audio signal output terminal when playback mode Not used (open) Not used (open) Power supply terminal (+1.7V) (for internal logic) Input terminal of external audio data to the internal D/A converter Not used (open) Input terminal for the test (normally : fixed at "L") Playback data signal output to the external D/A converter Not used (open) L/R sampling clock signal (44.1 kHz) output to the external D/A converter Not used (open) Ground terminal (for internal logic) Bit clock signal (2.8224 MHz) output to the external D/A converter Not used (open) Clock signal (11.2896 MHz) output to the external D/A converter Not used (open)
41
Pin No. 47 to 52 53 54 55 to 59 60 61 62 63 64 to 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102
Pin Name A03, A04, A02, A05, A01, A06 VDIO1 VSIO1 A00, A07, A10, A08, A09 XRAS IXOE IXWE XCAS D1, D2, D0, D3 VDC3 VSC3 A11 XOE XWE MVCI ASYO ASYI AVD1 BIAS RFI AVS1 PCO FILI FILO CLTV PEAK BOTM ABCD FE AUX1 VC ADIO ADRT AVD2 AVS2 ADRB SE TE DCHG APC ADFG VDIO2 VSIO2 F0CNT
I/O O -- -- O O O O O I/O -- -- O O O I O I -- I I -- O I O I I I I I I I O I -- -- I I I I I I -- -- O
Description Address signal output to the external D-RAM Not used (open) Power supply terminal (+2.4V) (for I/O cell) Ground terminal (for I/O cell) Address signal output to the external D-RAM Not used (open) Row address strobe signal output to the external D-RAM "L" active Not used (open) Output enable signal output terminal "L" active Not used (open) Data write enable signal output terminal "L" active Not used (open) Column address strobe signal output to the external D-RAM "L" active Not used (open) Two-way data bus with the external D-RAM Not used (open) Power supply terminal (+1.7V) (for internal logic) Ground terminal (for internal logic) Address signal output to the external D-RAM Not used (open) Output enable signal output to the external D-RAM "L" active Not used (open) Data write enable signal output to the external D-RAM "L" active Not used (open) Digital in PLL oscillation input from the external VCO Not used (fixed at "L") Playback EFM full-swing output terminal Playback EFM asymmetry comparator voltage input terminal Power supply terminal (+2.4V) (analog system) Playback EFM asymmetry circuit constant current input terminal Playback EFM RF signal input from the SN761056CDBT (IC501) Ground terminal (analog system) Phase comparison output for master clock of the recording/playback EFM master PLL Filter input for master clock of the recording/playback EFM master PLL Filter output for master clock of the recording/playback EFM master PLL Internal VCO control voltage input of the recording/playback EFM master PLL Light amount signal (RF/ABCD) peak hold input from the SN761056CDBT (IC501) Light amount signal (RF/ABCD) bottom hold input from the SN761056CDBT (IC501) Light amount signal input from the SN761056CDBT (IC501) Focus error signal input from the SN761056CDBT (IC501) Auxiliary signal input terminal Not used (fixed at "H") Middle point voltage (+1.2V) input terminal Monitor output of the A/D converter input signal Not used (open) A/D converter operational range upper limit voltage input terminal (fixed at "H" in this set) Power supply terminal (+2.4V) (analog system) Ground terminal (analog system) A/D converter operational range lower limit voltage input terminal (fixed at "L" in this set) Sled error signal input terminal Not used (fixed at "L") Tracking error signal input from the SN761056CDBT (IC501) Connected to the +2.4V power supply Error signal input for the laser automatic power control Not used (fixed at "H") ADIP duplex FM signal (22.05 kHz ± 1 kHz) input from the SN761056CDBT (IC501) Power supply terminal (+2.2V) (for I/O cell) Ground terminal (for I/O cell) Center frequency control signal output terminal of internal circuit filter Not used (open)
42
Pin No. 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119
Pin Name XLRF CKRF DTRF APCREF LDDR VDC4 TRDR TFDR FFDR FRDR FS4 SRDR SFDR VSC4 SPRD SPFD FGIN
I/O O O O O O -- O O O O O O O -- O O I I O O -- -- O O O I I I O O O -- -- I I O O O -- -- -- -- --
Description Serial latch signal output terminal Not used (open) Serial clock signal output terminal Not used (open) Write data output terminal Not used (open) Control signal output to the reference voltage generator circuit for the laser automatic power control PWM signal output for the laser automatic power control Not used (open) Power supply terminal (+1.7V) (for internal logic) Tracking servo drive PWM signal () output to the XC111256FTA (IC551) Tracking servo drive PWM signal (+) output to the XC111256FTA (IC551) Focus servo drive PWM signal (+) output to the XC111256FTA (IC551) Focus servo drive PWM signal () output to the XC111256FTA (IC551) Clock signal output terminal (X' tal system 176.4 kHz) Not used (open) Sled servo drive PWM signal () output terminal Not used (open) Sled servo drive PWM signal (+) output terminal Not used (open) Ground terminal (for internal logic) Spindle servo drive PWM signal () output terminal Not used (open) Spindle servo drive PWM signal (+) output terminal Not used (open) FG signal input terminal for spindle servo Not used (open) Input terminal for the test (normally : fixed at "L") Muting applied to analog signal input in non-signal status causes the signal to be "H" automatically Not used (open) Spindle servo drive voltage control signal output to the XC111256FTA (IC551) Power supply terminal (+2.4V) (for I/O cell) Ground terminal (for I/O cell) Spindle servo (U) drive signal output to the XC111256FTA (IC551) Spindle servo (V) drive signal output to the XC111256FTA (IC551) Spindle servo (W) drive signal output to the XC111256FTA (IC551) Spindle servo (U) timing signal input from the XC111256FTA (IC551) Spindle servo (V) timing signal input from the XC111256FTA (IC551) Spindle servo (W) timing signal input from the XC111256FTA (IC551) Sled servo (1+) drive signal output to the XC111256FTA (IC551) Sled servo (1) drive signal output to the XC111256FTA (IC551) Sled servo (2+) drive signal output to the XC111256FTA (IC551) Power supply terminal (+1.7V) (for internal logic) Ground terminal (for internal logic) Sled servo (1) timing signal input from the XC111256FTA (IC551) Sled servo (2) timing signal input from the XC111256FTA (IC551) Sled servo (2) timing signal output to the XC111256FTA (IC551) Sled servo voltage control signal output to the XC111256FTA (IC551) By-pass transistor control signal output terminal Not used (open) Ground terminal (for internal 16M bit D-RAM) Power supply terminal (+2.4V) (for internal 16M bit D-RAM) Ground terminal (for internal 16M bit D-RAM) Power supply terminal (+2.4V) (for internal 16M bit D-RAM) Not used (open)
120 to 122 TEST1 to TEST3 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 to 168 MTFLGR SPVS VDI03 VSI03 SPDU SPDV SPDW SPCU SPCV SPCW SLDU SLDV SLDW VDC5 VSC5 SLCU SLCV SLCW SLVS BYPS DVSSDRAM DVDDDRAM DVSSDRAM DVDDDRAM NC
43
· IC801 CXR701080-016GA (SYSTEM CONTROLLER) Pin No. 1 2 3, 4 5 6 to 9 10 11 12 13 14 15 16 17 18 19 20, 21 22 23 24 25 26 27 28 29 30 to 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Pin Name VLCD OFTRK NC NC COM0 to COM3 NC SI0 SO0 SCK0 NC VSS VDD NC BEEP RMC DTCK NC MUTE XHP STBY CLV U CLV V CLV W XRST MTR DRV XLAT XCS DSP NC SENSE TSB SLVE SLD MON 1 PD S0 NC PD S1 RMC WK CTL XSLEEP TSB EDGE NC XRST VSS XTAL EXTAL VDD NC SPDL START SW I/O O I I O O