2
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 alkal ine
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 Info rm ation
Technolog y Industries Associat ion ) stand a rd.
2)When using a 1 00% fully charged
rechargeable batte ry.
3)When using a Sony LR6 (SG)
“STAMINA”
alkaline dry ba tte ry (produce d in Japan)
On power sources
•Use house current, nickel me tal hydride
rechargeable battery, LR6 (s i ze AA) battery.
or car battery.
•For use in your house:For the supplied battery
charging sta nd, use the AC power adapt o r
supplied with t h is recorder. Do not use any other
AC power adaptor since it may cause the re corder
to malfuncti on.
Polarity of th e
plug
AC power adap tor (1)
Headphones/earphones with a remote control
(1)
Battery ch arging sta nd (Assembly needed) (1 )
Rechargeable battery (1)
Dry battery case (1)
Rechargeable ba tte ry carrying cas e (1)
Carrying pou ch/carrying case with a belt clip
(1)
AC plug adaptor (Except HongK ong model)
(1)
Optical cab le (1)
Supplied accessories
3)Measured in accordance with the JEITA (J apan
Electronics and Inform ation Technology
Industries Association) standard.
4)When using a 100 % fully charged rechargeable
battery.
5)When us ing a Sony LR6 (S G) “STAMINA”
alkaline dry battery (produce d in Japan).