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-- 1 --
Tourist Model
SERVICE MANUAL
WM-FX822
RADIO CASSETTE PLAYER
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SPECIFICATIONS
Model Name Using Similar Mechanism
WM-EX510
Tape Transport Mechanism Type
MT-WMEX510-112
Radio section
Frequency range
FM (stereo) : 76.0 - 90 MHz
AM (mono) : 531 - 1,710 kHz
TV (mono): 1 -12 ch
Tape player section and general
Frequency response (a NR off)
20 - 18,000 Hz (EIAJ*)
Output
Headphones (
2/REMOTE jack)
load impedance 8 - 300
Power output
4 mW + 4 mW (EIAJ, 16
)
DC1.5V
Power requirements Rechargeable battery (NC-6WM)
One R6 (size AA) battery
Battery life (Approx. hours)
Dimensions
Approx. 108.5 x 78.6 x 23.0 mm (w/h/d)
incl. projecting parts and controls (EIAJ)
Mass
Main unit Approx. 145 g
For use Appox. 240 g (incl. Stereo
earphone with remote controller,
rechargeable battery NC-6WM, tape C-
60HF)
Design and specifications subject to change without notice.
Using AC power
Remove the rechargeable battery if inserted and attach the battery
case and connect the AC power adaptor (AC-E15L or AC-
E15HG) not supplied) to the DC IN 1.5V of the battery case and
to the wall outlet. Do not use any other AC power adaptor.
Dolby noise reduction manufactured under licence from Dolby
Laboratories Licensing Corporation.
"DOLBY" and the double-D symbol 8 are trademarks of Dolby
Laboratories Licensing Corporation.
*(EIAJ) Electric Industries Association of Japan
Polarity of
the plug
Rechargeable NC-6WM
fully charged
Playback
5
Radio/TV reception
7.5
Sony alkaline LR6 (WM)
Playback
16
Radio/TV reception
24
Sony R6P (SR)
Playback
3.5
Radio/TV reception
7
Ver 1.1 2002. 01
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
9-960-416-12
2002A1600-1
© 2002.1


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SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY MARK
! OR DOTTED
LINE WITH MARK
! 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.
TABLE OF CONTENTS
Section
Title
Page
SECTION 1. GENERAL .......................................... 3
SECTION 2. SERVICE NOTE ................................. 4
SECTION 3. DISASSEMBLY
3-1.
Bracket assembly and Cassette Holder assembly .............. 6
3-2.
Audio Board ....................................................................... 6
3-3.
Tuner Board ....................................................................... 7
SECTION 4. ADJUSTMENTS
4-1.
Mechanical Adjustments .................................................... 8
4-2.
Electrical adjustments ........................................................ 8
SECTION 5. DIAGRAMS
5-1.
Printed Wiring Board -- Tuner Section -- ..................... 11
5-2.
Schematic Diagram -- Tuner Section -- ........................ 13
5-3.
Schematic Diagram -- Audio Section -- ....................... 17
5-4.
Printed Wiring Board -- Audio Section -- .................... 21
5-5.
IC Pin Functions
IC701 MSM63120B System Control .............................. 25
IC702 SMC62L3A LCD Driver ...................................... 26
SECTION 6. EXPLODED VIEWS
6-1.
Case and Tuner Board Section ........................................ 28
6-2.
Audio Board Section ........................................................ 29
6-3.
Mechanism Section (WM-EX510-112) ........................... 30
SECTION 7. ELECTRICAL PARTS LIST ............. 31
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.
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.
Receiving Stations Outside Japan
1
Press BAND·RADIO ON to turn on the radio.
2
Press ENTER. The frequency digits, "PRESET" and a preset
number flash in the display.
3
Press BAND·RADIO ON for more than 2 seconds. "AREA
1" flashes in the display.
4
While "AREA 1" is flashing, press PRESET+/­ repeatedly to
select either area "USA" (USA and Canada) or "Eur"
(Europe and other countries) and then press ENTER.
5
Press ASP to store the radio stations (both AM and FM)
automatically.
The Walkman starts searching and storing stations.
6
Press BAND·RADIO ON to select the desired band and
press PRESET+/­ to select a station.


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SECTION 1
GENERAL
This section is extracted
from instruction manual.
PARTS IDENTIFICATION
Tape Player and General section
Radio section
Accessories supplied
L
R
L
R
1 OPEN knob
2 Display window
3 Terminal for a dry battery case
4 Battery compartment lid
(for the rechargeable battery)
5 Tape operation buttons
6 MENU (function select) botton
7 SET (function change) botton
8 BATT (battery) indicator
9 Main unit : VOLUME knob
Remote controller : VOL knob
0 Main unit : Hold cover
Remote controller : HOLD switch
2 REMOTE (Headphone with remote control unit)
jack
!TM Micro plug
DBB (dynamic bass boost)/ALARM botton
1 ENTTER (input) button
2 PRESET +, ­ button
3 ASP (Automatic Station Preset) button
4 TUNE (tuning) +/­ switch
5 p · RADIO OFF (stop/radio off) button
6 BAND (FM/AM/TV band select) · RADIO ON
button
8
9
0
!TM
5
0
!TM
2
9
1
2
3
4
5
6
7
5
6
5
4
6
2
1
2
3
· Battery charger
· Rechageable battery
· Battery case
· Sony alkaline battery AM3 (SR)
NC-6WM
· Stereo earphone
· Ear adaptors(2)
· Carrying case
· Clip
(with Remote Controller)
(If the earphones do not fit your
ears, attach the ear adaptors.)
· Plug adaptor
· Instruction manual
· Leaf lets
· Warranty card


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SECTION 2
SERVICE NOTE
[Service Mode]
Mode which enables the mechanism to be operated with the
MAIN board opened.
1. Setting
1) Refer to "Disassembly" and remove the cabinet and open the
MAIN board.
2) Connect the MAIN board to the motor and plunger using a
jumper wire. Use "Extension tool (1-769-143-11) (one set 10
tools)" to make connection simple.
3) Short-circuit theTP52 and GND by soldering.
4) Turn OFF the BL SKIP switch.
5) Apply a square wave signal or a sine wave signal to TP52.
(see the right figure)
6) Supply 1.3V to the battery terminals (+) and (­) using a
stabilized power supply.
2. Preset State
This state must be set to set the PLAY, FF, and REW modes.
1) Check that the lever (NR SW) is at the center and F/R switch
(S701) is at the center. If not, set the preset state as follows.
2) Move the N/R switch (S701) according to the side faced by
the lever (NR SW).
3) Turn OFF the stabilized power supply switch once and then
turn it ON again so that the lever (NR SW) can be moved.
Move the N/R switch (S701) according to this timing and set
to the center.
3. FF REW Mode
1) Check the "2. Preset State" and press the FF switch and
REW switch.
4. PLAY Mode
1) Check the "2. Preset State".
2) Press the
oe switch. The lever (NR SW) will move to the F
side once and then to the R side. Move the N/R switch
(S701) according to this timing to set the PLAY (R side)
mode. Press the
oe switch another time and move the N/R
switch (S701) according to the movement of the lever (NR
SW) to set the PLAY (N side) mode.
Note 1: If the above cannot be performed, start again from preset.
Note 2: Use the remote control
oe, p, FF, and REW switches as
much as possible. If the remote control is not available, do
not touch switch with the hand and use something with a
round tip to press them.
Note 3: By using a headphone, the timing for moving S701 can be
known by the beep.
[Lever (NR SW)]
Lever
(NR SW)
F side
R side
Center
-- Side A --
-- Side B --
[MAIN Board]
SQUARE
WAVE
(SINE WAVE)
10Hz, ­3.5dB
+
­
AF oscillator
50K
TP50
TO
PLUNGER
FF
REW
ND701
BATT
TO
MOTOR
TP52
BATT
IC702
N SIDE
R SIDE
CENTER
PH701
S701


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[Rotation system]
Rotation system during PLAY.
Rotation system during REW.
Rotation system during FF.
Gear (C)
Pulley
(REVERSE)
Gear (A)
Reel table
(T side)
Gear (B)
Clutch assembly
Reel table
(S side)
Motor pully
Gear (NR)
(REW : Left side/
FWD : Right side)
Gear (K)
Reel table
(T side)
Clutch assembly
Gear (B)
Gear (FR)
(REW : Left side)
Motor pully
Gear (K)
Gear (NR)
Gear (A)
Capstan wheel (N)
assembly
Pulley
(REVERSE)
Capstan wheel (R)
assembly
Gear (FR)
(FF : Right side)
Reel table
(S side)
Motor pully
Clutch assembly
Gear (K)
Gear (C)
Gear (NR)
Capstan wheel (N)
assembly
Capstan wheel (R)
assembly
Capstan wheel (N)
assembly
Capstan wheel (R)
assembly
Pulley
(REVERSE)