Sony wm ex 66 service manual

Page 2

WM-EX66/EX77/EX88

TABLE OF CONTENTS Flexible Circuit B ard Repairing
' . Keep the temperature of the soldering iron around
Section Title Page 270°C during repairing.
. . . Do not touch the soldering iron on the same conduc-
SPCCIfICBIIOI'I ................................................................ ] tor Of the circuit board (within 3 times),
0 Be careful not to apply force on the conductor when
1' GENERAL soldering or unsoldering.
l-l. Location and Function of Controls ~-
Notes on chip component replacement
2. SERVICING NOTE--~
0 Never reuse a disconnected chip component.
3 ADJUSTMENTS 0 Notice that the minus side of a tantalum capacitor
3-]. Mechanical Adjustment ~ may be damaged by heat,
3-2, Electrical Adjustment
4. DIAGRAMS
4-1. Block Diagram ----------
4-2. Printed Wiring Boards~ -
4.3~ Schematic Diagram .......................................... 11
4-4. Remote Control Printing Wiring Board and
Schematic Diagram .......................................... 16
5. EXPLODED VIEWS
5-1. Cabinet Section
5th Mechanism Section -
5-3. Mechanism Section(MT-WMEX77r60
6. ELECTRICAL PARTS LIST --------------------------------- 21
SEC-"ON 1 This section is extracted from
GENERAL instruction manual.

1-1. LOCATION AND FUNCTION OF CONTROLS

WM-EXGG

E] 5m: NB (tape playback sldoi
luttery) indicator

E 4 >(pllyhackltnpe lmnlpofl dlnc-
tion char-lg.) button

I (nap) button

EX DEB (dynamlc ban boost)
selector

VOL (volume) control

AtVLS (automatic volumo llmllorlyntem)
letch

El FF (last-inward) (ms button
new (nwlnd) (ms button

HOLD dial

Battery oompartmnt lld (ior a
rocliargublo bonny)

Buttery cannectlng point: (lorll'le
supplied battery emi

OPEN switch

Cassette troldor

Window

a o a MODE (tape tranbport)
ioiector

[1] (Dolby) NR (Dolby noise
reduction) ONIDFF ooloctor

Q MEMOTE (earphonta with remote
control unit) lack

ll you wish to use separately bought
earphones, use the supplied plug adaptor.

E E @EHEI I SEE]

EEEEIEEHEBE EH IE

I (stop) button
REW (rowlnd) (AMS button
FF (last-toward) (AMS button

4 >(playback/tape transport direc-
tion onungoi button

Micro plug

Nine-pole plug

VOL (volume) control
How swllch

HOLD indicator