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MZ-R909
TABLE OF CONTENTS
1. SERVICING NOTES ............................................... 3
2. GENERAL ................................................................... 4
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 5
3-2. Panel Assy, Bottom ......................................................... 5
3-3. Panel Assy, Upper Section .............................................. 6
3-4. “LCD Module”, “Panel Assy, Upper” ............................ 6
3-5. MAIN Board Assy .......................................................... 7
3-6. “Case Assy, Battery”, “MAIN Board” ........................... 7
3-7. Strip, Ornamental ............................................................ 8
3-8. “MD Mechanism Deck (MT-MZR909-171)”,
“Chassis Assy, Set” ......................................................... 8
3-9. Service Assy, OP (LCX-4R) ........................................... 9
3-10. Holder Assy ..................................................................... 10
3-11. Motor, DC (Sled) (M602) ............................................... 10
3-12. “Motor, DC (Spindle) (M601)”,
“Motor, DC (Over Write Head UP/DOWN) (M603)” ... 11
4. TEST MODE .............................................................. 12
5. ELECTRICAL ADJUSTMENTS ......................... 18
6. DIAGRAMS
6-1. Block Diagram – SERVO Section – ............................... 34
6-2. Block Diagram – AUDIO Section – ............................... 35
6-3. Block Diagram – KEY CONTROL/DISPLAY/
POWER SUPPLY Section – ........................................... 36
6-4. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 37
6-5. Printed Wiring Board
– Main Board (Component Side) – ............................... 38
6-6. Printed Wiring Board
– Main Board (Conductor Side) – ................................. 39
6-7. Schematic Diagram – Main Board (1/4) – .................... 40
6-8. Schematic Diagram – Main Board (2/4) – .................... 41
6-9. Schematic Diagram – Main Board (3/4) – .................... 42
6-10. Schematic Diagram – Main Board (4/4) – .................... 43
6-11. IC Pin Function Description ........................................... 48
7. EXPLODED VIEWS
7-1. Panel Section ................................................................... 54
7-2. Chassis Section ............................................................... 55
7-3. MD Mechanism Deck Section (MT-MZR909-171) ....... 56
8. ELECTRICAL PARTS LIST ............................... 57
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 PUB-
LISHED BY SONY.
Design and specifications are subject to change
without notice.
When playing
(Unit: approx.hours )(JEITA
1)
)
Batteries SP
Stereo
LP2
Stereo
LP4
Stereo
NH-14WM
nickel metal
hydride
rechargeable
battery
2)
24 27 31
LR6 (SG)
Sony alkaline
dry battery
3)
34 40 45
NH-14WM
nickel metal
hydride
rechargeable
battery
2)
+ One LR6
(SG)
3)
64 75 84
1)
Measured in accordance with the JEITA
(Japan Electronics and Information
Technology Industries Association) standard.
2)
When using a 100% fully charged
rechargeable battery.
3)
When using a Sony LR6 (SG)
“
STAMINA”
alkaline dry battery (produced in Japan)
On power sources
• Use house current, nickel metal hydride
rechargeable battery, LR6 (size AA) battery.
or car battery.
•
For use in your house:For the supplied battery
charging stand, use the AC power adaptor
supplied with this recorder. Do not use any other
AC power adaptor since it may cause the recorder
to malfunction.
Polarity of the
plug
AC power adaptor (1)
Headphones/earphones with a remote control
(1)
Battery charging stand (Assembly needed) (1)
Rechargeable battery (1)
Dry battery case (1)
Rechargeable battery carrying case (1)
Carrying pouch/carrying case with a belt clip
(1)
AC plug adaptor (Except
HongKong
model)
(1)
Optical cable (1)
Supplied accessories
3)
Measured in accordance with the JEITA (Japan
Electronics and Information Technology
Industries Association) standard.
4)
When using a 100 % fully charged rechargeable
battery.
5)
When using a Sony LR6 (SG) “STAMINA”
alkaline dry battery (produced in Japan).