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MZ-R700 PORTABLE MINIDISC RECORDER -
Service Manual
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MZ-G750/R700
SERVICE MANUAL
Ver 1.0 2001. 01 Ver 1.0 2001. 01
AEP Model UK Model Tourist Model Hong Kong Model
(Photo: MZ-G750)
US and foreign patents licensed from Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mechanism Mechanism Type Optical Pick-up Name
NEW MT-MZR700-172 LCX-4R
SPECIFICATIONS
MD recorder Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs MQW 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 lens surface on the optical pick-up block with 7 mm aperture.) Recording and playback time When using MDW-80 Maximum 160 min. in monaural Maximum 320 min. in 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 ATRAC3-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 Wow and Flutter Below measurable limit Inputs Microphone: stereo mini-jack, minimum input level 0.25 mV Line in: stereo mini-jack, minimum input level 49 mV Optical (Digital) in: optical (digital) minijack Outputs i: stereo mini-jack, maximum output level 5 mW + 5 mW, load impedance 16 ohm Radio (MZ-G750) Frequency range AM: 531-1,602 kHz FM: 87.5-108.0 MHz General Power requirements Sony AC Power Adaptor (supplied) connected at the DC IN 3 V jack: 230 V AC, 50/60 Hz (AEP model) 230-240 V AC, 50 Hz (UK/Hong Kong model) 100-240 V AC, 50/60 Hz (Other models) Nickel cadmium rechargeable battery NC-WMAA (supplied) LR6 (size AA) alkaline battery (not supplied)
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FM/AM PORTABLE MINIDISC RECORDER
MZ-G750
PORTABLE MINIDISC RECORDER
MZ-R700
9-873-045-11
2001A0400-1 © 2001. 1
Sony Corporation
Audio Entertainment Group General Engineering Dept.
1
MZ-G750/R700
Battery operation time Battery life1) (MZ-G750) When recording2) Batteries NC-WMAA Nickel Cadmium rechargeable battery4) LR6 (SG) Sony alkaline dry battery 5)
1)
(Unit: approx.hours) (EIAJ3)) Stereo LP2 LP4 4 6 7.5 96) 136) 166)
Flexible Circuit Board Repairing · Keep the temperature of the soldering iron around 270°C during repairing. · Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). · Be careful not to apply force on the conductor when soldering or unsoldering. Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
The battery life may be shorter due to operating conditions and the temperature of the location. 2) When you record, use a fully charged rechargeable battery. 3) Measured in accordance with the EIAJ (Electronic Industries Association of Japan) standard. 4) When using a 100% fully charged rechargeable battery. 5) When using a Sony LR6 (SG) "STAMINA" alkaline dry battery (produced in Japan). 6) Recording time may differ according to the alkaline batteries. When playing (Unit: approx.hours) (EIAJ1)) Batteries Stereo LP2 LP4 NC-WMAA Nickel Cadmium 11.5 14 16 rechargeable battery2) LR6 (SG) Sony alkaline dry 36 42 48 battery 3) Measured in accordance with the EIAJ (Electronic Industries Association of Japan) standard. 2) When using a 100% fully charged rechargeable battery. 3) When using a Sony LR6 (SG) "STAMINA" alkaline dry battery (produced in Japan). When using the radio (EIAJ 1)) Batteries Approx. hours NC-WMAA Nickel Cadmium rechargeable 9.5 battery 2) LR6 (SG) Sony alkaline dry battery3) 28.5
1) 1)
2) 3)
Measured in accordance with the EIAJ (Electronic Industries Association of Japan) standard. When using a 100% fully charged rechargeable battery. When using a Sony LR6 (SG) "STAMINA" alkaline dry battery (produced in Japan). (Unit: approx.hours) (EIAJ2)) Stereo LP2 LP4 Recording 4 6 7.5 Playback 13 14.5 18 Recording 9 13 16 Playback 40 46 53
Battery life1) (MZ-R700) Batteries NC-WMAA Nickel Cadmium rechargeable battery3) LR6 (SG) Sony alkaline dry battery 4)
1)
The battery life may be shorter due to operating conditions and the temperature of the location. 2) Measured in accordance with the EIAJ (Electronic Industries Association of Japan) standard. 3) When using a 100% fully charged rechargeable battery. 4) When using a Sony LR6 (SG) "STAMINA" alkaline dry battery (produced in Japan). Dimensions Approx. 81 × 74.4 × 28.1 mm (w/h/d) (3 1/ 4 × 3 × 1 1/ 8 in.) without projections. Mass Approx. 118 g (4 5/32 oz) the recorder only (MZ-G750) Approx. 116 g (4.1 oz) the recorder only (MZ-R700) Supplied accessories AC power adaptor (1) Headphones/earphones with a remote control (1) Optical cable (1) NC-WMAA nickel cadmium rechargeable battery (1) Rechargeable battery carrying case (1) Carrying pouch/carrying case with a belt clip (except U.S.A model) (1) SAFETY-RELATED COMPONENT WARNING!! Design and specifications are subject to change without notice. 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
MZ-G750/R700
TABLE OF CONTENTS 1. SERVICING NOTE ......................................................... 4 2. GENERAL
Looking at the Controls (MZ-G750) ................................... 5 Looking at the Controls (MZ-R700) ................................... 6
5. ELECTRICAL ADJUSTMENTS
5-1. Outline ............................................................................... 18 5-2. Precautions for Adjustment ............................................... 18 5-3. Adjustment Sequence ........................................................ 18 5-4. NV Reset ........................................................................... 18 5-5. Power Supply Manual Adjustment .................................... 19 5-6. Temperature Correction ..................................................... 20 5-7. Laser Power Check ........................................................... 20 5-8. Overall Adjustment Mode ................................................. 21 5-9. Resume Clear .................................................................... 23 5-10. Patch Data Rewriting when Nonvolatile Memory was Replaced ...................................................... 23
3. DISASSEMBLY
3-1. Panel Assy, Lower ............................................................... 7 3-2. Panel Assy, Upper ............................................................... 7 3-3. LCD Module ....................................................................... 8 3-4. Main Board ......................................................................... 8 3-5. MD Mechanism Deck ......................................................... 9 3-6. Service Assy, OP ................................................................. 9 3-7. Holder Assy ....................................................................... 10 3-8. Motor Flexible Board ........................................................ 10 3-9. Motor, DC (M602) ............................................................ 11 3-10. "Motor, DC (M601)", "Motor, DC (M603)" .................... 11
6. DIAGRAMS
6-1. 6-2. 6-3. 6-4. 6-5. 6-6. 6-7. 6-8. IC Pin Function Description ............................................ 29 Block Diagram Servo Section ..................................... 35 Block Diagram Audio Section .................................... 36 Block Diagram System Control/Power Section .......... 37 Printed Wiring Board Main Section ............................ 38 Schematic Diagram Main Section (1/3) ...................... 41 Schematic Diagram Main Section (2/3) ...................... 42 Schematic Diagram Main Section (3/3) ...................... 43
4. TEST MODE
4-1. Outline ............................................................................... 12 4-2. Setting Method of Test Mode ............................................ 12 4-3. Operation in Setting the Test Mode ................................... 12 4-4. Releasing the Test Mode ................................................... 12 4-5. Configuration of Test Mode .............................................. 13 4-6. Manual Mode .................................................................... 13 4-7. Overall Adjustment Mode ................................................. 14 4-8. Self-Diagnosis Result Display Mode ................................ 14 4-9. Result the Error Display Code .......................................... 15 4-10. Sound Skip Check Result Display Mode .......................... 16 4-11. Key Check Mode ............................................................... 16
7. EXPLODED VIEWS
7-1. Panel Section ..................................................................... 47 7-2. Chassis Section ................................................................. 48 7-3. MD Mechanism Deck Section .......................................... 49
8. ELECTRICAL PARTS LIST ...................................... 50
3
MZ-G750/R700 SECTION 1 SERVICING NOTE
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-4R) 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, fix a convex part of the open/close detect switch (S806 on MAIN board) with a tape in advance. Handle the FLEXIBLE board (overwrite 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 (overwrite head) and the MAIN board with the lead wires in advance. (See page 8)
FLEXIBLE board (Over write head) panel assy, upper
Tape
S806 MAIN board
· Replacement of CDX2671-203GA (IC801) used in this set requires a special tool. · On the set having the microcomputer version 1.000, some adjusted values were set in the manual mode at the shipment, but these data will be cleared when the NV is reset. Therefore, on the set having the microcomputer version 1.000, change the adjusted values following the Change of Adjusted Values immediately after the NV was reset. (See page 18) · If the nonvolatile memory was replaced on the set, the modified program data must be written to the nonvolatile memory. In such a case, write the modified data that meets the microcomputer version following the patch data rewriting procedure at the replacement of nonvolatile memory. (See page 23)
laser-tap
OPTICAL PICK-UP FLEXIBLE BOARD
4
MZ-G750/R700 SECTION 2 GENERAL
This section is extracted from instruction manual.
(MZ-G750)
5
MZ-G750/R700
(MZ-R700)
6
MZ-G750/R700 SECTION 3 DISASSEMBLY
Note : This set can be disassemble according to the following sequence.
Set
Panel Assy,Lower
Panel Assy, Upper Main Board Service Assy, OP Motor Flexible Board Motor, DC (M602)
LCD Module
MD Mechanism Deck Holder Assy
Motor, DC (M601), Motor, DC (M603)
Note : Follow the disassembly procedure in the numerical order given.
3-1. PANEL ASSY, LOWER
3 screws (1.4x2.0), MI 4 claw
2 screws (1.4x2.0), MI
1 6 Panel Assy , Lower 5
3-2. PANEL ASSY, UPPER
2 screws (1.4x2.0), MI 4 CN801 3 panel assy, upper
1 screws (1.4x2.0), MI
7
MZ-G750/R700
3-3. LCD MODULE
2 screws (1.7x2.5) 1 screws (1.7x2.5)
4 LCD module
3 claws
panel assy, upper
3-4. MAIN BOARD
4 screws (M1.7x3) 6 Remove the solders 2 arm 3 screws (M1.4x2) 0 Remove the solder 7 qs MAIN board
5 screws (M1.4x2)
8 Remove the solder
1 CN502 qa spring, battery coil 9 case assy, battery
8
MZ-G750/R700
3-5. MD MECHANISM DECK
boss
3 MD mechanism deck
boss
2 chassis assy, set
1 screws (1.4x1.6), MI
3-6. SERVICE ASSY, OP
3 screw(M1.4), precision pan
1 washer (0.8 - 2.5) 2 gear (SA)
5 screw(M1.4), precision pan 6 spring, thrust detent
4 spring(s), pack
8 Pull off the lead screw.
7
B
9 Opening the over write head toward the direction A, remove the OP Service assy toward the direction B. Note: Do not open the entire assy forcibly, when opening the over write head.
over write head section
A
9
MZ-G750/R700
3-7. HOLDER ASSY
4 Remove the holder assy to direction of the arrow B.
1 Open the holder assy.
A 2
B
3 boss
3-8. MOTOR FLEXIBLE BOARD
1 Remove four solders of DC motor (sled) (M602). 2 Remove two solders of DC motor (over write head up/down) (M603).
4 adhesive sheet Note: Align a circular hole in the stripping paper with a circular hole in the DC motor (sled), when mounting the motor flexible board.
3 Remove four solders of DC motor (spindle) (M601).
5 motor flexible board
DC motor (sled) circular hole
10
MZ-G750/R700
3-9. MOTOR, DC (M602)
3 Remove four solders of motor flexible board. 4 two screws(M1.4), precision pan 1 washer (0.8 - 2.5)
2 gear (SA) 5 moter, DC (sled) (M602)
3-10. "MOTOR, DC (M601)", "MOTOR, DC (M603)"
1 Remove six solders of motor flexible board. Note: Press-fit the gear (HA) up to the position of the DC motor (over write head up/down) (M603) as shown below. gear (HA) 6 two screws(M1.4), precision pan 4 three screws(M1.4), precision pan qa chassis assy, gear 0 screw (M1.2 × 1.5) 2.65 mm gear chassis assy DC motor (over write head up/down) (M603)
qs moter, DC (over write head up/down) (M603)
9 gear (HA) 8 gear (HB) 7 washer (0.8 - 2.5) 2 washer (0.8 - 2.5)
3 gear (HC)
5 moter, DC (spindle) (M601)
11
MZ-G750/R700 SECTION 4 TEST MODE
4-1. 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 set. A key having no particular description in the text, indicates a set key. · For the LCD display, the LCD on the set is shown.
4-3. 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.
This set LCD display
AM PM
BASS
All lit
88:88e
4-2. Setting Method of Test Mode
There are two different methods to set the test mode: 1 Short SL801 (TEST) on the MAIN board with a solder bridge (connect pin 3 of IC801 to the ground). Then, turn on the power.
LP24 MONO SYNC REC F 1 SHUFF PGM REC DATE REMAIN
All off
MAIN BOARD (SIDE B)
Microcomputer version display
Ver 1.200
00 5
· 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, some adjusted values were set in the manual mode at the shipment, but these data will be cleared when the NV is reset. Therefore, on the set having the microcomputer version 1.000, change the adjusted values following the Change of Adjusted Values immediately after the NV was reset (see page 18).
4-4. Releasing the Test Mode
For test mode set with the method 1: Turn off the power and open the solder bridge on SL801 (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. Note: If electrical adjustment (see page 18) has not been finished completely, always start in the test mode. (The set cannot start in normal mode)
R817
C814
C809
C821
C815 X801
R806 C808 C807
AP828
FB801
SL801 (TEST)
AP817
2 In the normal mode, turn on the [HOLD] switch. While pressing the [VOL --] key press the following order:
> t > t . t . t > t . t > t . t X t X
12
MZ-G750/R700
4-5. Configuration of Test Mode
Test mode (Display Check Mode) Press the > or VOL+ Press the x key key N key x key Major item switching
VOL + key: 100th Place of item number increase. VOL key: 100th Place of item number decrease. VOL + key: 10th Place of item number increase. VOL key: 10th Place of item number decrease.
Manual Mode Servo Adjustment Audio Adjustment Power Supply Adjustment OP Alignment Adjustment Press the . or VOL Press the x key key Overall Adjustment Mode
Medium item switching
N key
x key
Minor item switching Electrical Offset Adjustment Power Supply Adjustment Auto item Feed CD Overall Adjustment/ MO Overall Adjustment
N key: Unit Place of item number increase. . key: Unit Place of item number decrease. Adjusted value variation VOL + key: Increases the adjusted value
ENTER key 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
VOL key: Decreases the adjusted value Adjusted value write X key: When adjusted value is chaged: Adjusted value is written. When adjusted value is not changed: That item is adjusted automatically.
Press the T MARK key,or ENTER key for several seconds(about 3 seconds) Key Check Mode The key check quits,or open the upper panel
4-6. 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. Setting the test mode (see page 12). 2. Press the > or[VOL +] key activates the manual mode where the LCD display as shown below.
This set LCD display
Manual
00 0
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. The values adjusted in the test mode are written to the nonvolatile memory (for the items where adjustment was made).
13
MZ-G750/R700
5. The display changes a shown below each time the [ENTER] key on the set is pressed.
4-8. 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 pickup 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 pickup was replaced. · Self-Diagnosis Result Display Mode Setting Method 1. Setting the test mode (see page 12). 2. In the display check mode, press the [ENTER] key activates the self-diagnosis result display mode where the LCD display as shown below.
This set LCD display
· Address & Adjusted Value Display This set LCD display
3A4S1D
adjustment value address
0 11
item number
· Jitter Value & Adjusted Value Display This set LCD display
0FEJ1D
adjustment value jitter value
0 11
item number
· Block Error Value & Adjusted Value Display This set LCD display
063B1D
adjustment value block error value
0 11
item number
1 0010
· ADIP Error Value & Adjusted Value Display This set LCD display history code
0 XX
error display code Total recording time when error occurred
072A1D
adjustment value ADIP error value · Item Title Display This set LCD display
0 11
item number
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.
1
0 XX 0 XX 0 XX 0 XX 0 XX
LrefPw 1D
item title adjustment value
0 11
item number
N N1 N2 R_ XX
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).
4-7. 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 18).
:Error code :Total recording time
If the [ENTER] key on set 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).
14
MZ-G750/R700
· Description of Error Indication Codes Problem No error Indication code 00 01 Servo system error 02 03 04 TOC error Power supply system error 11 12 22 31 32 Offset system error 33 34 · Description of Indication History History code number 1 N N1 N2 R_ Description The first error The last error One error before the last. Two errors before the last. Total recording time Meaning of code No error Illegal access target address was specified High temperature Focus error Spindle error TOC error Data reading error Low battery Offset error Focus error ABCD offset error Tracking error Offset error X1 tracking error Offset error Simple display --Adrs Temp Fcus Spdl TOC Data LBat Ofst ABCD TE X1TE No error Attempt to access an abnormal address High temperature Disordered focus Abnormal rotation of disc Faulty TOC contents Data could not be read at SYNC Momentary interruption detected Offset error Focus error ABCD offset error Tracking error Offset error X1 tracking error Offset error Description
4-9. Reset the error display code
After servicing, reset the error display code. · Setting method of Reset the Error Display Code 1. Setting the test mode (see page 12). 2. Press [ENTER] key activates the self-diagnosis result display mode. 3. To reset the error display code, press the X key (2 times) when the code is displayed (except "R_****"). (All the data on the 1, N, N1, and N2 will be reset)
15
MZ-G750/R700
4-10. 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 12). 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.
This set LCD display
· Cause of Sound Skip Error Cause of error EIB Play Stat Adrs BEmp BOvr Record Bful Rtry Description of error Sound error correction error Decoder status error Address access error Buffer is empty Buffer is full, and sounds were dumped Buffer capacity becomes less, and forcible writing occurred Retry times over
P
R
0 00
Total count record system errors(hex.)
Total count of play system errors(hex.)
4. To quit the sound skip check result display mode and to return to the test mode (display check mode), press the x key.
3. When the N 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 [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.
Playing sound skip result display Recording sound skip result display
4-11. 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 [T MARK] 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)
This set LCD display
0 00
: AD value of the remote commander Key (hexadecimal OO to FF)
P EIB
R
0 00 0 00 0 00 0 00 0 00
P
R
0 00 0 00 0 00 0 00
BOvr Bful Rtry
Stat Adre BEmp
3. When each key on the set and on remote commander is pressed, its name is displayed on the 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 > key on the set is pressed:
###### 0 00
This set LCD display
FF
###### 0 00
0 00
: AD value of the remote commander Key (hexadecimal OO to FF)
P
:Total play/record errors(hex.) :Counter of sound skip check each item(hex.) ###### :6-digit address where sound was skipped last(hex.) R
Example2: When N > key on the remote commander is pressed:
This set LCD display
rPLAY
0 00
: AD value of the remote commander Key (hexadecimal OO to FF)
16
MZ-G750/R700
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. Example1: When the keys on the set are considered as OK:
This set LCD display
SET OK
0 00
: AD value of the remote commander Key (hexadecimal OO to FF)
Example2: When the keys on the remote commander are considered as OK:
This set LCD display
RMC OK
0 00
: AD value of the remote commander Key (hexadecimal OO to FF)
5. When all keys were checked or if the upper panel is opened, the key check mode quits and the test mode (display check mode) comes back.
17
MZ-G750/R700 SECTION 5 ELECTRICAL ADJUSTMENTS
5-1. 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, 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. · For the LCD display, the LCD display on the set is shown. · Setting method of NV reset 1. Select the manual mode of the test mode, and set item number 021NV Reset (see page 13).
This set LCD display
ResNV
2. Press the X key.
This set LCD display
CC
0 21
5-2. 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 3V from the DC IN 3V jack (J601). 4. Switch position HOLD switch ............................................... OFF
Res OK?
3. Press the X key once more.
This set LCD display
0 21
Res
0 21
NV reset(after several seconds)
Reset!
0 21
5-3. Adjustment Sequence
1. 2. NV Reset(Memory clear) Power Supply Manual Adjustment Manual Mode Overall Mode
4. Press the x key to quit the manual mode, and activate the test mode (display check mode). · Change of Adjusted Values On the set having the microcomputer version 1.000, some adjusted values were set in the manual mode at the shipment, but these data will be cleared when the NV is reset. Therefore, on the set having the microcomputer version 1.000, modify the adjusted values through the following procedure immediately after the NV was reset. 1. Item numbers in which the adjusted values are to be modified Item number 832 Item number 862 Item number 871 Item number 872 2. Adjusted values modifying procedure 1) Select the manual mode of the test mode, and set item number 832 (see page 13).
This set LCD display
3. Temperature Correction(item number:014) 4. 5. Laser Power Check Electrical offset Adjustment Manual Mode
Caution: This adjustment must be made with no disc loaded. Overall Mode 6. 7. 8. CD Overall Adjustment MO Overall Adjustment Manual Mode RESUME Clear
5-4. NV Reset
Caution: On the set having the microcomputer version 1.000, some adjusted values were set in the manual mode at the shipment, but these data will be cleared when the NV is reset. Therefore, on the set having the microcomputer version 1.000, change the adjusted values following the Change of Adjusted Values immediately after the NV was reset.
Pw-T W
: Adjusted value
8 32
2) Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes E4.
18
MZ-G750/R700
3) Press the X key to write the adjusted value. 4) Select the manual mode of the test mode, and set item number 862 (see page 13).
This set LCD display
· Adjustment method of Vc PWM Duty (L) (item number: 762)
This set LCD display
V1dat
: Adjusted value
8 62
VclPWM
: Adjusted value
7 62
5) Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 01. 6) Press the X key to write the adjusted value. 7) Select the manual mode of the test mode, and set item number 871 (see page 13).
This set LCD display
1. Connect a digital voltmeter to the TP901 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes G750: 2.50 ± 0.01 V, R700: 2.40 ± 0.01 V.
digital voltmeter MAIN board TP901(VC) TP912(GND)
V5num
: Adjusted value
8 71
8) Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 20. 9) Press the X key to write the adjusted value. 10) Select the manual mode of the test mode, and set item number 872 (see page 13).
This set LCD display
2. Press the X key to write the adjusted value. (The item number changes to 763 when X key is pressed) Adjustment and Connection Location: MAIN board (see page 21) · Adjustment method of Vc PWM Duty (H) (item number: 763)
This set LCD display
V5dat
: Adjusted value
8 72
VchPWM
: Adjusted value
7 63
11) Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 39. 12) Press the X key to write the adjusted value.
1. Connect a digital voltmeter to the TP901 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes G750: 2.50 ± 0.01 V, R700: 2.75 ± 0.01 V.
digital voltmeter MAIN board TP901(VC) TP912(GND)
5-5. Power Supply Manual Adjustment
· Adjustment sequence Adjustment must be done with the following steps.
1. Vc PWM Duty (L) adjustment (item number 762) 2. Vc PWM Duty (H) adjustment (item number 763) 3. Vl PWM Duty adjustment (item number 764)
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 21) · Adjustment method of Vl PWM Duty (item number: 764)
This set LCD display
· Setting method of power supply manual adjustment 1. Make sure that the power supply voltage is 3V. 2. Set the test mode (see page 12). 3. Press the . or [VOL--] key to activate the overall adjustment mode.
This set LCD display
Assy 00
0 00
Vl PWM
: Adjusted value
7 64
4. Press the [END SEARCH] key. (the [END SEARCH] key causes the item number to be switched to 762.)
19
MZ-G750/R700
1. Connect a digital voltmeter to the TP902 (VL) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.30 ± 0.01 V.
digital voltmeter MAIN board TP902(VL) TP912(GND)
2. Press the . key continuously until the optical pick-up moves to the most inward track. 3. Open the cover and set the laser power meter on the objective lens of the optical pick-up. 4. Press the N key, and set the laser MO read adjustment mode (item number 011).
This set LCD display
LrefPw
: Adjusted value
0 11
2. When press the X key to write the adjusted value, LCD displays as follows and power supply manual adjustment has completed.
This set LCD display
ADJ OK
0 00
5. Check that the laser power meter reading is 0.81 ± 0.08 mW. 6. Check that the voltage both ends (TP (+) and TP ()) of resistor R521 at this time is below 44 mV. 7. Press the N key, and set the laser CD read adjustment mode (item number 012).
This set LCD display
Adjustment and Connection Location: MAIN board
HrefPw
: Adjusted value
0 12
5-6. Temperature Correction
· Adjustment Method of temperature correction 1. Select the manual mode of test mode, and set the mode number 014 (see page 13).
This set LCD display
SetTmp
: Adjusted value
0 14
8. Check that the laser power meter reading is 0.97 ± 0.10 mW. 9. Check that the voltage both ends (TP (+) and TP ()) of resistor R521 at this time is below 44 mV. 10. Press the N key, and set the laser MO write adjustment mode (item number 013).
This set LCD display
WritPw
: Adjusted value
0 13
2. Measure the ambient temperature. 3. Adjust with [VOL +], [VOL --] key so that the adjusted value (hexadecimal value) becomes the ambient temperature. (Initial value: 14h = 20 °C, Adjusting range: 80h to 7fh (128 °C to +127 °C) 4. Press the X key to write the adjusted value.
5-7. Laser Power Check
Connection :
laser power meter
11. Check that the laser power meter reading is 4.95 ± 0.50 mW. 12. Check that the voltage both ends (TP (+) and TP ()) of resistor R521 at this time is below 80 mV. 13. Press the x key to quit the manual mode, and activate the test mode (display check mode). Checking and Connection Location: MAIN board
Optical pick-up objective lens
digital voltmeter MAIN board TP(+) TP()
Checking Method : 1. Select the manual mode of test mode (see page 13), and set the laser power adjusting mode (item number 010).
This set LCD display
Laser
0 10
20
MZ-G750/R700
Adjustment/checking and Connection Location:
MAIN BOARD(SIDE A)
5-8. Overall Adjustment Mode
· Configuration of overall adjustment
Overall adjustment mode . key (Title display) N key Protect switch ON
CD overall adjusting All item OK NG item exists or x key CD overall adjustment NG CD overall adjustment OK N key
TP(+) R521 TP() TP902(VL)
x key
TP901(VC)
x key
TP912(GND)
Protect switch OFF > key
MO overall adjusting NG item exists or x key MO overall adjustment NG MO overall adjustment OK
x key
x key ENTER key x key
Electrical offset adjustment
END SEARCH key x key Test mode (display check mode)
Power supply adjustment auto item feed
Note: Adjust the CD first, when performing adjustment.
21
MZ-G750/R700
· Overall Adjustment Mode (Title Display)
This set LCD display
Assy
0 00
· Adjustment Method of Overall CD and MO Adjustment Mode 1. Setting the test mode (see page 12). 2. Press the . or [VOL --] key activates the overall adjustment mode.
This set LCD display
: (Disc mark) At end power supply adjustment:Outside lit At end of electrical offset adj.:inside lit Note:On the set having microcomputer version 1.000,the disc mark is displayed on the set LCD only. : Left side = MO overall adjustment information F : MO overall adjustment completed 1 : Manual adjustment exists(overall adj.not completed) 0 : Not adjusted Right side = CD overall adjustment information F : CD overall adjustment completed 1 : Manual adjustment exists(overall adj.not completed) 0 : Not adjusted
Assy 11
0 00
3. Insert CD disc in the set, and press the . key to set the Overall CD Adjustment mode. Automatic adjustments are made.
This set LCD display
CD RUN
X XX
· Electrical Offset Adjusting Method Caution: The electrical offset adjustment must be made with no disc loaded. 1. Make sure that the power supply voltage is 3V. 2. Set the test mode (see page 12). 3. Press the . or [VOL--] key to activate the overall adjustment mode.
This set LCD display
X XX: Item number for which on adjustment is being executed.
4. In case of CD overall adjustment NG, reset the NV (see page 18), then readjust from the temperature correction (see page 20).
This set LCD display
NG OF
: NG item number
0 00
Assy 11
4. Press the [ENTER] key.
This set LCD display
0 00
5. If OK through the overall CD adjustments, then perform overall MO adjustments.
This set LCD display
Ofst
: Adjusted value
0 35
CD OK
0 00
5. Electrical offset adjustment is over, if the following display appears.
This set LCD display
6. Insert MO disc in the set, and press the > key to set the Overall MO Adjustment mode. Automatic adjustments are made.
This set LCD display
OfstOK
0 00
MO RUN
X XX
X XX: Item number for which on adjustment is being executed.
7. In case of MO overall adjustment NG, reset the NV (see page 18), then readjust from the temperature correction (see page 20).
This set LCD display
NG OF
: NG item number
0 00
8. If OK through the overall MO adjustments, press the x key to return to the test mode and terminate the Overall Adjustment mode.
This set LCD display
MO OK
0 00
22
MZ-G750/R700
· Overall CD and MO adjustment items 1. Overall CD adjustment items
Item No. 312 313 314 321 328 324 332 336 344 345 521 522 CD ABCD gain adjustment CD focus gain adjustment CD tracking gain adjustment CD two-axis sensitivity adjustment CD tracking error gain adjustment CD TWPP gain adjustment CD tracking error offset adjustment Description CD electrical offset adjustment
5-9. Resume Clear
Perform the Resume clear when all adjustments completed. · Resume Clear Setting Method 1. Select the manual mode of the test mode, and set item number 043 (see page 13).
This set LCD display
Resume CC
2. Press the X key.
This set LCD display
0 43
Res
0 43
Resume clear complete
2. Overall MO adjustment items
Item No. 112 113 114 118 221 224 232 236 244 245 121 122 134 131 132 136 144 145 434 431 432 436 445 411 412 448 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 TON offset adjustment MO TWPP gain adjustment MO double speed read TWPP offset adjustment MO ABCD gain adjustment MO focus gain adjustment MO tracking gain adjustment MO write TWPP gain adjustment MO write TWPP offset adjustment MO tracking error offset adjustment MO write ABCD gain adjustment MO write tracking gain adjustment MO normal speed read TWPP offset adjustment MO tracking error offset adjustment 20 sec full recording Description
ResClr
0 43
MO electrical offset adjustment
3. Press the x key to return to the test mode (display check mode).
5-10. Patch Data Rewriting When Nonvolatile Memory was Replaced
On this set, if the nonvolatile memory was replaced, the modified program data must be written to the nonvolatile memory. In such a case, write the modified data that meets the microcomputer version following the procedure provided below. · Modified Data Writing Method (version 1.000) 1. Select the manual mode of the test mode, and set item number 023 (see page 13).
This set LCD display
Patch
00: Adjusted value
00
0 23
2. Press the [VOL+] key once to change the adjusted value to 01. 3. Press the [T MARK] key for several seconds (about 3 seconds) to activate the patch data write mode. (The following display will appear where 00 is blinking)
This set LCD display
0D5800
00: Adjusted value
0 23
4. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 1E.
This set LCD display
0D581E
1E: Adjusted value
0 23
23
MZ-G750/R700
5. Press the X key. (0D58 is blinking)
This set LCD display
16. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 20.
0D581E
1E: Adjusted value
0 23
This set LCD display
0D5F20
6. Press the [VOL+] key once to change the blinking portion to 0D59.
This set LCD display 20: Adjusted value
0 23
0D5900
00: Adjusted value
0 23
17. Press the X key. (0D5F is blinking) 18. Press the [VOL+] key once to change the blinking portion to 0D60.
This set LCD display
0D6000
00: Adjusted value
0 23
7. Press the x key. (00 is blinking) 8. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes B2.
This set LCD display
0D59B2
B2: Adjusted value
0 23
19. Press the x key. (00 is blinking) 20. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 08.
This set LCD display
0D6008
08: Adjusted value
0 23
9. Press the X key. (0D59 is blinking) 10. Press the [VOL+] key once to change the blinking portion to 0D5E.
This set LCD display
0D5E00
00: Adjusted value
0 23
21. Press the X key. (0D60 is blinking) 22. Press the [VOL+] key once to change the blinking portion to 0D61.
This set LCD display
0D6100
00: Adjusted value
0 23
11. Press the x key. (00 is blinking) 12. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 8B.
This set LCD display
0D5E8B
8B: Adjusted value
0 23
23. Press the x key. (00 is blinking) 24. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes A1.
This set LCD display
0D61A1
A1: Adjusted value
0 23
13. Press the X key. (0D5E is blinking) 14. Press the [VOL+] key once to change the blinking portion to 0D5F.
This set LCD display
0D5F00
00: Adjusted value
0 23
25. Press the X key. (0D61 is blinking) 26. Press the [VOL+] key once to change the blinking portion to 0D62.
This set LCD display
0D6200
00: Adjusted value
0 23
15. Press the x key. (00 is blinking)
24
MZ-G750/R700
27. Press the x key. (00 is blinking) 28. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 04.
This set LCD display
· Modified Data Writing Method (version 1.100) 1. Select the manual mode of the test mode, and set item number 023 (see page 13).
This set LCD display
Patch 00
00: Adjusted value
0 23
0D6204
04: Adjusted value
0 23
2. Press the [VOL+] key once to change the adjusted value to 01. 3. Press the [T MARK] key for several seconds (about 3 seconds) to activate the patch data write mode. (The following display will appear where 00 is blinking)
This set LCD display
29. Press the X key. (0D62 is blinking) 30. Press the [VOL+] key once to change the blinking portion to 0D65.
This set LCD display
0D5C00
00: Adjusted value
0 23
0D6500
00: Adjusted value
0 23
4. Press the X key. (0D5C is blinking) 5. Press the [VOL+] key once to change the blinking portion to 0D5D.
This set LCD display
31. Press the x key. (00 is blinking) 32. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 20.
This set LCD display
0D5D00
00: Adjusted value
0 23
0D6520
20: Adjusted value
0 23
33. Press the X key. (0D65 is blinking) 34. Press the [T MARK] key for several seconds (about 3 seconds) to exit the patch data write mode (to return to the manual mode display in the test mode).
This set LCD display
6. Press the x key. (00 is blinking) 7. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes AA.
This set LCD display
0D5DAA
AA: Adjusted value
0 23
Patch 01
01: Adjusted value
0 23
35. Press the X key to write the modified data. (The adjusted value changes to CC) 36. The modified data writing is over, if the adjusted value changes to DD.
This set LCD display
8. Press the X key. (0D5D is blinking) 9. Press the [VOL+] key once to change the blinking portion to 0D5E.
This set LCD display
0D5E00
00: Adjusted value
0 23
SDD
DD: Adjusted value
0 23
37. Turn the power off.
10. Press the x key. (00 is blinking) 11. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 04.
This set LCD display
0D5E04
04: Adjusted value
0 23
25
MZ-G750/R700
12. Press the X key. (0D5E is blinking) 13. Press the [VOL+] key to change the blinking portion to 0D61.
This set LCD display
24. Press the X key. (0D65 is blinking) 25. Press the [VOL+] key once to change the blinking portion to 0D66.
This set LCD display
0D6100
00: Adjusted value
0 23
0D6600
00: Adjusted value
0 23
14. Press the x key. (00 is blinking) 15. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 20.
This set LCD display
26. Press the x key. (00 is blinking) 27. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 03.
This set LCD display
0D6120
20: Adjusted value
0 23
0D6603
03: Adjusted value
0 23
16. Press the X key. (0D61 is blinking) 17. Press the [VOL+] key to change the blinking portion to 0D64.
This set LCD display
28. Press the X key. (0D66 is blinking) 29. Press the [VOL+] key to change the blinking portion to 0D68.
This set LCD display
0D6400
00: Adjusted value
0 23
0D6800
18. Press the x key. (00 is blinking) 19. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes F4.
This set LCD display 00: Adjusted value
0 23
30. Press the x key. (00 is blinking) 31. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 80.
This set LCD display
0D64F4
F4: Adjusted value
0 23
0D6880
80: Adjusted value
0 23
20. Press the X key. (0D64 is blinking) 21. Press the [VOL+] key once to change the blinking portion to 0D65.
This set LCD display
32. Press the X key. (0D68 is blinking) 33. Press the [VOL+] key once to change the blinking portion to 0D69.
This set LCD display
0D6500
00: Adjusted value
0 23
0D6900
22. Press the x key. (00 is blinking) 23. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 1C.
This set LCD display 00: Adjusted value
0 23
34. Press the x key. (00 is blinking) 35. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 09.
This set LCD display
0D651C
1C: Adjusted value
0 23
0D6909
09: Adjusted value
0 23
26
MZ-G750/R700
36. Press the X key. (0D69 is blinking) 37. Press the [VOL+] key to change the blinking portion to 0D6C.
This set LCD display
48. Press the X key. (0D6E is blinking) 49. Press the [VOL+] key to change the blinking portion to 0D72.
This set LCD display
0D6C00
00: Adjusted value
0 23
0D7200
00: Adjusted value
0 23
38. Press the x key. (00 is blinking) 39. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes F6.
This set LCD display
50. Press the x key. (00 is blinking) 51. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 05.
This set LCD display
0D6CF6
F6: Adjusted value
0 23
0D7205
05: Adjusted value
0 23
40. Press the X key. (0D6C is blinking) 41. Press the [VOL+] key once to change the blinking portion to 0D6D.
This set LCD display
52. Press the X key. (0D72 is blinking) 53. Press the [VOL+] key once to change the blinking portion to 0D73.
This set LCD display
0D6D00
00: Adjusted value
0 23
0D7300
00: Adjusted value
0 23
42. Press the x key. (00 is blinking) 43. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 1C.
This set LCD display
54. Press the x key. (00 is blinking) 55. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes D3.
This set LCD display
0D6D1C
1C: Adjusted value
0 23
0D73D3
D3: Adjusted value
0 23
44. Press the X key. (0D6D is blinking) 45. Press the [VOL+] key once to change the blinking portion to 0D6E.
This set LCD display
56. Press the X key. (0D73 is blinking) 57. Press the [VOL+] key once to change the blinking portion to 0D74.
This set LCD display
0D6E00
00: Adjusted value
0 23
0D7400
00: Adjusted value
0 23
46. Press the x key. (00 is blinking) 47. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 03.
This set LCD display
58. Press the x key. (00 is blinking) 59. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes F8.
This set LCD display
0D6E03
03: Adjusted value
0 23
0D74F8
F8: Adjusted value
0 23
27
MZ-G750/R700
60. Press the X key. (0D65 is blinking) 61. Press the [VOL+] key once to change the blinking portion to 0D75.
This set LCD display
72. Press the X key. (0D78 is blinking) 73. Press the [VOL+] key once to change the blinking portion to 0D79.
This set LCD display
0D7500
00: Adjusted value
0 23
0D7900
00: Adjusted value
0 23
62. Press the x key. (00 is blinking) 63. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 1C.
This set LCD display
74. Press the x key. (00 is blinking) 75. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes E0.
This set LCD display
0D751C
1C: Adjusted value
0 23
0D79E0
E0: Adjusted value
0 23
64. Press the X key. (0D75 is blinking) 65. Press the [VOL+] key once to change the blinking portion to 0D76.
This set LCD display
76. Press the X key. (0D79 is blinking) 77. Press the [T MARK] key for several seconds (about 3 seconds) to exit the patch data write mode (to return to the manual mode display in the test mode).
This set LCD display
0D7600
00: Adjusted value
0 23
Patch 01
66. Press the x key. (00 is blinking) 67. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 03.
This set LCD display 01: Adjusted value
0 23
78. Press the X key to write the modified data. (The adjusted value changes to CC) 79. The modified data writing is over, if the adjusted value changes to DD.
This set LCD display
0D7603
03: Adjusted value
0 23
SDD
DD: Adjusted value
0 23
68. Press the X key. (0D76 is blinking) 69. Press the [VOL+] key to change the blinking portion to 0D78.
This set LCD display
80. Turn the power off.
0D7800
00: Adjusted value
0 23
70. Press the x key. (00 is blinking) 71. Adjust with the [VOL+] key (adjusted value up) or [VOL--] key (adjusted value down) so that the adjusted value becomes 01.
This set LCD display
0D7801
01: Adjusted value
0 23
28
MZ-G750/R700 SECTION 6 DIAGRAMS
6-1. IC PIN FUNCTION DESCRIPTION
· IC501 SN761057DBT (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. Pin Name I/O Description 1 TE O Tracking error signal output to the system controller (IC801) 2 REXT -- Connect terminal to the external resistor for ADIP amp control 3 WPPLPF -- Connect terminal to the external capacitor for TPP/WPP low-pass filter 4 VREF O Reference voltage output terminal (+1 V) 5 C I Signal (C) input from the optical pickup detector 6 D I Signal (D) input from the optical pickup detector 7 D-C I Signal (D) input from the optical pickup detector (AC input) 8 IY I I-V converted RF signal (IY) input from the optical pickup detector 9 IX I I-V converted RF signal (IX) input from the optical pickup detector 10 JX I I-V converted RF signal (JX) input from the optical pickup detector 11 JY I I-V converted RF signal (JY) input from the optical pickup detector 12 A I Signal (A) input from the optical pickup detector 13 A-C I Signal (A) input from the optical pickup detector (AC input) 14 B I Signal (B) input from the optical pickup detector 15 TON-C -- Connect terminal to the external capacitor for TON hold Connect terminal to the external capacitor for the low-pass filter of NPP divider 16 CIG -- denominator Connect terminal to the external capacitor for the low-pass filter of CSL divider 17 CDN -- denominator 18 PD-I I Light amount monitor input terminal (invert input) 19 PD-NI I Light amount monitor input terminal (non-invert input) 20 PD-O O Light amount monitor output terminal 21 ADIP O ADIP duplex FM signal (22.05 kHz ± 1 kHz) output to the system controller (IC801) 22 DVDD -- Power supply terminal (+2.3 V) (digital system) 23 SBUS I/O SSB serial data input/output with the system controller (IC801) 24 SCK I SSB serial clock signal input from the system controller (IC801) 25 XRST I Reset signal input from the system controller (IC801) "L": reset 26 OFTRK I Off track signal input from the system controller (IC801) 27 DGND -- Ground terminal (digital system) Bottom hold signal output of the light amount signal (RF/ABCD) to the system 28 BOTM O controller (IC801) Peak hold signal output of the light amount signal (RF/ABCD) to the system 29 PEAK O controller (IC801) 30 VREF075 -- Connect terminal to the external capacitor for the internal reference voltage 31 VC O Middle point voltage (+1.2 V) generation output terminal 32 CCSL2 -- Connect terminal to the external capacitor for TPP/WPP low-pass filter 33 RF OUT O Playback EFM RF signal output to the system controller (IC801) 34 AGND -- Ground terminal (analog system) 35 37 EQ, LP, PS -- Connect terminal to the external capacitor for the RF equalizer 38 AVCC -- Power supply terminal (analog system) (+2.3 V) 39, 40 OFC-2, OFC-1 -- Connect terminal to the external capacitor for RF AC coupling 41 ABCD O Light amount signal (ABCD) output to the system controller (IC801) 42 FE O Focus error signal output to the system controller (IC801) 43 S-MON O Servo signal monitor output to the system controller (IC801) 44 ADIP-IN I ADIP duplex FM signal (22.05 kHz ± 1 kHz) input terminal
29
MZ-G750/R700
· IC801 CXD2671-203GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM) Pin No. Pin Name I/O Description 1 PAUSE KEY I Set key input terminal (X key input) Control signal output to the microphone amp 2 MIC SENSE O "H": HIGH, "L": LOW, normally: "H" (Not used) 3 XTEST I Input terminal for the test mode set up "L": test mode (normally fixed at "H") 4, 5 NC O Not used (open) 6 MCUVDD0 -- Power supply terminal (for microcomputer block) (+1.5 V) 7 MIFVSS3 -- Ground terminal (for microcomputer I/F) 8 XRST I System reset signal input terminal from the power control (IC901) "L": reset 9 S MON I Servo signal monitor input terminal (A/D input) from RF amp (IC501) 10 VB MON I Voltage monitor input terminal of UNREG power supply (A/D input) 11 CHG MON I Charge voltage monitor input terminal (A/D input) from XPC18A22FCR2 (IC601) 12 VREF MON I Clear reference voltage input terminal (A/D input) from RF amp (IC501) SET KEY 1, 13, 14 I Set key input terminal (A/D input) SET KEY 2 15 VL MON I VL voltage monitor input terminal (A/D input) (G750 only) 16 HIDC MON I HIGH DC voltage monitor input terminal (A/D input) 17 WK DET I Set key start switching detection signal input terminal (A/D input) 18 REC KEY I REC key input terminal (A/D input) Open button detection switch (S805) input terminal (A/D input) 19 HALF LOCK SW I "L": when normal position, "H": when locked 20 RMC KEY I Key input terminal (A/D input) of the remote commander attached headphone 21 AVDD -- Power supply terminal (for the analog circuit block) (+2.8 V) 22 AVSS -- Ground terminal (for the analog circuit block) 23 VDIOSC -- Power supply terminal (for OSC cell) (+2.4 V) 24 OSCI I System clock (45.1584 MHz) input terminal 25 OSCO O System clock (45.1584 MHz) output terminal 26 VSIOSC -- Ground terminal (for OSC cell) 27 DAVDD -- Power supply terminal (for the built-in D/A converter) (+2.4 V) 28 VREFL I Reference voltage input terminal (for the internal D/A converter L-CH) 29 AOUTL O Built-in D/A converter (L-CH) output terminal 30 AOUTR O Built-in D/A converter (R-CH) output terminal 31 VREFR I Reference voltage input terminal (for the built-in D/A converter R-CH) 32 DAVSS -- Ground terminal (for the built-in D/A converter) 33 ASYO O Playback EFM duplex signal output terminal 34 ASYI I Playback EFM comparison slice level input terminal 35 AVD1 -- Ground terminal (for the analog) (+2.4 V) 36 BIAS I Bias input for the playback EFM comparison 37 RFI I Playback EFM RF signal input from RF amp (IC501) 38 AVS1 -- Ground terminal (for the analog) 39 PCO O Phase comparison output for the master clock of playback EFM system master PLL 40 PDO O Phase comparison output for the analog PLL Not used (open) 41 FILI I Filter input for the master clock of the playback EFM system master PLL 42 FILO O Filter output for the master clock of the playback EFM system master PLL 43 CLTV I Internal VCO control voltage input for the playback EFM system master PLL 44 PEAK I Peak hold signal input of the light amount signal (RF/ABCD) from RF amp (IC501) 45 BOTM I Bottom hold signal input of the light amount signal (RF/ABCD) from RF amp (IC501) 46 ABCD I Light amount signal (ABCD) input from RF amp (IC501) 47 FE I Focus error signal input from RF amp (IC501) 48 AUX1 I Support signal (I3 signal/temperature signal) input terminal (A/D input) 49 VC I Middle point voltage (+1.2 V) input terminal 50 ADIO O Monitor output of A/D converter input signal Not used (open) 51 ADRT I A/D converter the upper limit voltage input (fixed at "H" in this set)
30
MZ-G750/R700
Pin No. 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 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
Pin Name AVD2 AVS2 ADRB SE TE DCHG APC DSPVDD0 DSPVSS0 XTSL DIN1 DOUT DAPWMLP DAPWMLN DAPWMRP DADT ADDT LRCK XBCK FS256 MVCI DSPVDD1 ADFG F0CNT DIFVDD0 DIFVSS0 APCREF LDDR TRDR TFDR FFDR FRDR MCUVDD1 FGIN FS4 SPRD/SPDU/RTG0 SPFD/SPVS/PWM3 SPDV/RTG1 SPDW/RTG2 DSPVDD2 DSPVSS1 SPCU SPCV SPCW SRDR SFDR SLDV
I/O -- -- I I I -- I -- -- I I O O O O O I O O O I -- I O -- -- O O O O O O -- I O O O O O -- -- I I I O O O
Description Power supply terminal (for the analog) (+2.4 V) Ground terminal (for the analog) A/D converter the lower limit voltage input (fixed at "L" in this set) Sled error signal input terminal Not used (fixed at "L") Tracking error signal input from RF amp (IC501) Connecting analog power supply of the low impedance (fixed at "H" in this set) Error signal input for the laser automatic power control Not used (fixed at "H") Power supply terminal (for DSP block) (+1.5 V) Ground terminal (for DSP block) Input terminal for the frequency set up of the system clock "L": 45.1584 MHz, "H": 22.5792 MHz (fixed at "L" in this set) Input terminal of the record system digital audio signal Output terminal of the playback system digital audio signal Not used (open) D/A converter PWM output (L-CH right phase) Not used (open) D/A converter PWM output (L-CH reverse phase) Not used (open) D/A converter PWM output (R-CH right phase) Not used (open) Audio data output Not used (open) Data signal input from the external A/D converter (IC301) L/R sampling block signal (44.1 kHz) output to the external A/D converter (IC301) Bit clock signal (2.8224 MHz) output to the external A/D converter (IC301) 11.2896 MHz clock signal output to the external A/D converter (IC301) Vibrate input for the digital in PLL from the external VCO Not used (fixed at "L") Power supply terminal (for DSP block) (+1.5 V) ADIP duplex FM signal (20.05 ± 1 kHz) input from RF amp (IC501) Filter cut off control signal output Not used Power supply terminal (for DSP I/F) (+2.3 V) Ground terminal (for DSP I/F) Control signal output to the reference voltage generation circuit for the laser automatic power control PWM signal output for the laser automatic power control Not used (open) Tracking servo drive PWM signal output () to the motor driver (IC551) Tracking servo drive PWM signal output (+) to the motor driver (IC551) Focus servo drive PWM signal output (+) to the motor driver (IC551) Focus servo drive PWM signal output () to the motor driver (IC551) Power supply terminal (for the microcomputer block) (+1.5 V) FG signal input terminal for the spindle servo Not used (open) 176.4 MHz clock signal output to the power control (IC601, IC901) Spindle servo drive PWM signal output terminal () to the motor driver (IC551) Spindle servo drive PWM signal output (+) Spindle motor drive control signal output (V)/RTG output 1 to the motor driver (IC551) Spindle motor drive control signal output (W)/RTG output 2 to the motor driver (IC551) Power supply terminal (for DSP block) (+1.5 V) Ground terminal (for DSP block) Spindle motor drive comparison signal input (U) from the motor driver (IC551) Spindle motor drive comparison signal input (V) from the motor driver (IC551) Spindle motor drive comparison signal input (W) from the motor driver (IC551) Sled servo drive PWM signal output () to the motor driver (IC551) Sled servo drive PWM signal output (+) to the motor driver (IC551) Sled motor drive signal output (V) to the motor driver (IC551)/drive control signal output (1)
31
MZ-G750/R700
Pin No. 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 117 118 119 120 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156, 157 158 159 160 161 162 163 164 165 166 167, 168 169
Pin Name SLDW SLCU SLCV SLCW DIFVDD1 DIFVSS1 EFMO MNT0 MNT1 MNT2 MNT3 SENSE TX RECP DAPVDD3 NC DRAMVSS0 DRAMVDD0 NC DRAMVDD1 DRAMVSS1 TSB MST VDD RMC DTCK TSB SLV VDD TSB SLVI (TSB SLVO) TDI TMS TCK XTRST TDO JTAGVDD JTAGVSS MCUVDD2 MIFVDD0 MIFVSS0 TEST1, TEST0 EVA (OPR LED) SSB DATA SSB CLK MCUVSS0 VREC PWM VL PWM VC PWM SPDL AUX PWM NC CLK SEL
I/O O I I I -- -- O O O O O O O O -- O -- -- O -- -- -- I/O -- I O I I I I O -- -- -- -- -- I I O I/O O -- O O O O O O
Description Sled motor drive signal output (W) to the motor driver (IC551)/drive control signal output (2+) Spindle motor drive comparison signal input (U) from the motor driver (IC551) Spindle motor drive comparison signal input (V) from the motor driver (IC551) Spindle motor drive comparison signal input (W) from the motor driver (IC551) Power supply terminal (for DSP I/F) (+2.3 V) Ground terminal (for DSP I/F) EFM encode data output for the record to the over write head drive (IC601) Internal DSP monitor output (0) terminal Not used (open) Internal DSP monitor output (1) terminal Not used (open) Internal DSP monitor output (2) terminal Not used (open) Internal DSP monitor output (3) terminal Not used (open) Internal DSP (SENS) monitor output terminal Not used (open) Record data output enable signal output monitor terminal of the internal DSP Not used (open) Laser power changeover signal output monitor terminal Not used (open) Power supply terminal (for DSP block) (+1.5 V) Output terminal for the external D-RAM Not used (open) Ground terminal (for the external D-RAM) Power supply terminal (for the external D-RAM) (+2.4 V) Output terminal for the external D-RAM Not used (open) Power supply terminal (for the external D-RAM) (+2.4 V) Ground terminal (for the external D-RAM) Power supply terminal (for TSB master communication) (+2.8 V) TSB serial data input/output with the remote commander attached headphone Power supply terminal (for I/F to TSB slave communication) (+2.3 V) TSB slave signal input from the remote commander attached headphone (fixed at "L") TSB slave signal output from the remote commander attached headphone Not used (open) Data input terminal for JTAG Not used (open) Test mode control input terminal for JTAG Not used (open) Clock input terminal for JTAG Not used (open) Reset input terminal for JTAG Not used (open) Data output terminal for JTAG Not used (open) Power supply terminal (for JTAG) (+2.4 V) Ground terminal (for JTAG) Power supply terminal (for the microcomputer block) (+1.5 V) Power supply terminal (for the microcomputer I/F block) (+2.3 V) Ground terminal (for the microcomputer I/F block) Input terminal for the main test (normally fixed at "L") EVA/FLASH chip discrimination terminal "L": FLASH chip, "H": EVA chip Not used (open) Input/output of SSB serial data with RF amp (IC501) SSB serial clock output to RF amp (IC501) Ground terminal (for the microcomputer block) Over write head cont