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MZ-N1 service manual
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Contents
Main
SERVICE MANUAL
PORTABLE MINIDISC RECORDER
AEP Model UK Model E Model
Continued on next page
SPECIFICATIONS
Battery life
TABLE OF CONTENTS 1. SER VICING NO TES 2. GENERAL 3. DISASSEMBLY
4. TEST MODE 5. ELECTRICAL ADJUSTMENTS 6. DIAGRAMS
8. ELECTRICAL P AR TS LIST
7. EXPLODED VIEWS
OPTICAL PICK-UP FLEXIBLE BOARD
SECTION 1 SERVICING NOTES
SECTION 2 GENERAL
instruction manual.
14
13
12
MZ-N1 SECTION 3 DISASSEMBLY
3-1. DISASSEMBLY FLOW
3-2. BOTTOM PANEL ASSY
3-3. UPPER PANEL SECTION
3-4. LCD MODULE, UPPER PANEL ASSY
3-5. MAIN BOARD SECTION
four screws (1.7)
upper panel section
Remove the LCD module in the direction of the arrow.
3-6. BATTERY CASE ASSY, MAIN BOARD
3-7. MD MECHANISM DECK (MT-MZN1-171), CHASSIS ASSY
3-8. OP SERVICE ASSY (LCX-5R)
3-9. HOLDER ASSY
3-10. DC MOTOR (SLED) (M602)
3-11. DC SSM18B MOTOR (SPINDLE) (M601), DC MOTOR (OVER WRITE HEAD UP/DOWN) (M603)
Operation in Setting the Test Mode
Releasing the Test Mode
[HOLD]
888 001 V1.000
MAIN Board (Conductor Side)
SECTION 4 TEST MODE
Outline
Setting Method of Test Mode
Manual
Manual Mode
[Adjusted value write]
[Medium item switching]
[DISPLAY]
1 0000
C68S01
[DISPLAY]
LrefPw 01
015F01
Reset the Error Display Code
Jog and Key Check Mode
JOG+OK
P**R**
**
JOG OK
JOG- 1
SET OK **
rPLAY **
RMC OK **
SECTION 5 ELECTRICAL ADJUSTMENTS
ResNV CC
Res***
Outline
Reset!
Precautions for Adjustment
V1 dat **
AbcdGn **
V1 num **
Dfct 1 **
V3 num **
V6 num **
V4 num **
V6 num **
V5 dat **
V5 num **
V4 dat **
V6 dat **
VchPWM **
V6 dat **
VclPWM **
VLpwmH **
VLpwmL **
RECpwH **
--]
HrefPw **
LrefPw **
Laser
WritPw **
MAIN Board (Conductor Side)
IC303
AP912 (GND) AP611 (VREC)
Q604
Assy11
: Item number for which an adjustment is being executed.
[DISPLAY]
XXX CD RUN
Assy11
Res***
CD OK
MO OK
*** NG
XXX MO RUN
Rewriting the Patch Data at Replacement of Main Board or Nonvolatile Memory (IC802)
Page
Page
SECTION 6 DIAGRAMS
6-1. BLOCK DIAGRAM SERVO/USB Section
MM
SIGNAL PATH : PLAYBACK : REC (ANALOG IN) : REC (DIGITAL IN) : USB CHECK OUT
A B C
6-2. BLOCK DIAGRAM AUDIO Section
B
C
F
SIGNAL PATH : PLAYBACK : REC (ANALOG IN) : REC (DIGITAL IN)
6-3. BLOCK DIAGRAM DISPLAY/KEY CONTROL/POWER SUPPLY Section
F D
+
E
6-4. NOTE FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAMS
A B C D E F G H I
1 2 3 4 5 6 7 8 9 10 11
6-6. PRINTED WIRING BOARD MAIN board (Conductor Side) :Uses unleaded solder.
i
11, 12
A B C D E F G H I J
1 2 3 4 5 6 7 8 9 10 11
C502
C625
HMON
6-7. SCHEMA TIC DIA GRAM MAIN Board (1/4)
(2/4)
6-8. SCHEMA TIC DIA GRAM MAIN Board (2/4)
(Page 36)
(Page 38)
(3/4)
6-9. SCHEMA TIC DIA GRAM MAIN Boar d (3/4)
37)
(Page 36)
R203 R105
IN1
6-10. SCHEMA TIC DIA GRAM MAIN Board (4/4)
36)
38)
Waveforms
700 mVp-p
5.67 ns
3.7 Vp-p
354 ns
IC Block Diagrams IC301 AK5354VT-E2
IC302 AN17020A-VB
IC303 NJM2173APC1 (TE2)
IC501 SN761057A
IC551 SC111258FCR2
IC601 XPC18A22AFCR2
IC901 XPC18A32AFCR2
PGND1
NC
L1
VC OUT
6-11. IC PIN FUNCTION DESCRIPTION
Page
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Page
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SECTION 7 EXPLODED VIEWS
7-2. BOTTOM PANEL SECTION
7-3. CHASSIS SECTION
7-4. MAIN BOARD SECTION
Page
MZ-N1 SECTION 8 ELECTRICAL PARTS LIST