Sony D-FJ75TR - Fm/am Portable Cd Player User manual

D-FJ75TR
US Model
AEP Model
UK Model
E Model
SERVICE MANUAL
FM/AM PORTABLE CD PLAYER
Model Name Using Similar Mechanism D-E770/EJ711/EJ715
CD Mechanism Type CDM-3123EBA
Optical Pick-up Name DAX-23E
SPECIFICATIONS
CD player
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: λ= 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance
of 200 mm from the objective lens surface on
the optical pick-up block with 7 mm aperture.)
D-A conversion
1-bit quartz time-axis control
Frequency response
20 - 20 000 Hz
+1
–2
dB (measured by EIAJ CP-307)
Output (at 4.5 V input level)
Line output (stereo minijack)
Output level 0.7 V rms at 47 kΩ
Recommended load impedance over 10 kΩ
Headphones (stereo minijack)
Approx.5 mW + Approx. 5 mW at 16 Ω
(Approx. 1 mW +Approx. 1 mW at 16 Ω )*
*For the customers in France
Optical digital output (optical output connector)
Output level: –21 - –15 dBm
Wavelength: 630 - 690 nm at peak level
Radio (LCD remote control
with built in digital tuner)
Frequency range (STEP)
Tuner type “U”
FM: 87.5 - 108.0 MHz (100 kHz STEP)
AM: 530 - 1 710 kHz (10 kHz STEP)
Tuner type “E”
FM: 87.5 - 108.0 MHz (50 kHz STEP)
AM: 531 - 1 602 kHz (9 kHz STEP)
Tuner type “J”
FM: 76 - 90 MHz (100 kHz STEP)
AM: 531 - 1 710 kHz (9 kHz STEP)
Antenna
FM: Headphones/earphones cord antenna
AM: Built-in ferrite bar antenna
General
Power requirements
For the area code of the model you
purchased, check the upper left side of the
bar code on the package.
• Two Sony NC-WMAA rechargeable
batteries: 2.4 V DC
• Sony NH-WM2AA rechargeable batteries:
2.4 V DC
• Two LR6 (size AA) batteries: 3V DC
• AC power adaptor (DC IN 4.5 V jack):
US model: 120 V, 60 Hz
AEP, E13, EE, FR model:
220 - 230 V, 50/60 Hz
UK model : 230 - 240V, 50 Hz
E33 model: 100 - 240V, 50/60 Hz,
HK model : 220V, 50/60 Hz
CH model : 220V, 50 Hz
• Sony DCC-E345 car battery cord for use on
car battery: 4.5 V DC
Battery life* (approx. hours)
(When you use the CD player on a flat and stable
surface.)
Playing time varies depending on how the CD
player is used.
When using G-PROTECTION RADIO
on off on
Two NC-WMAA 8 7 14
(charged for
about 3 hours**)
NH-WM2AA 18 15 30
(charged for
about 4 hours**)
Two Sony alkaline 32 28 50
batteries LR6SG
* Measured value by the standard of EIAJ
(Electronic Industries Association of Japan).
** Charging time varies depending on how the
rechargeable battery is used.
Operating temperature
5°C - 35°C (41°F - 95°F)
Dimensions (w/h/d) (excluding
projecting parts and controls)
Approx. 131.6 ×25.0 ×141.4 mm
(5
1
⁄
4
×1 ×5
5
⁄
8
in.)
Mass (excluding accessories)
Approx. 185 g (6.6 oz.)
• Abbreviation
CH : Chinese model
EE : East European model
FR : French model
HK : Hong Kong model
E13 : AC220-230V area model
E33 : AC100-240V area model
— Continued on next page —
Ver 1.0 2000. 06
本资料由ＯＫＸＩＡ视听皮带资源库ｗｗｗ．ｏｋｘｉａ．ｃｎ提供

— 2 —
TABLE OF CONTENTS
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINEWITH
MARK 0ON 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.
CAUTION
Use of controls or adjustments or performance of procedures
otherthanthosespecifiedhereinmayresultinhazardousradiation
exposure.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 °C dur-
ing 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.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
1. SERVICING NOTES····················································· 3
2. GENERAL ······································································· 4
3. DISASSEMBLY······························································ 5
3-1. Cabinet (Upper) ··································································· 5
3-2. CDM-3123EBA and Main Board ········································ 5
4. ELECTRICAL ADJUSTMENTS······························· 6
5. DIAGRAMS ····································································· 7
5-1. IC Pin Function Description ················································ 7
5-2. IC Block Diagrams ······························································ 9
5-3. Block Diagram··································································· 10
5-4. Printed Wiring Board ························································· 12
5-5. Schematic Diagram···························································· 15
6. EXPLODED VIEWS···················································· 18
6-1. Cabinet Section ·································································· 18
6-2. Main Section ······································································ 19
6-3. Mechanism Section (CDM-3123EBA)······························ 20
7. ELECTRICAL PARTS LIST ···································· 21
Accessories
Supplied accessories
For the area code of the location in which you
purchased the CD player, check the upper left side
of the bar code on the package.
AC power adaptor (1)
Headphones with LCD remote control with built
in digital tuner (1)
Rechargeable batteries (2)
Battery carrying case (1)
Carrying case (1)
For US customers
The AC power adaptor supplied is not intended to
be serviced. Should the AC power adaptor cease to
function in its intended manner, during the warranty
period, the adaptor should be returned to your
nearest Sony Service Center or SonyAuthorized
Repair Center for replacement, or after warranty
period, it should be discarded.
Design and specifications are subject to change
without notice.

— 3 —
The laser diode in the optical pick-up block may suffer electro-
static breakdown because of the potential difference generated by
the charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
Befor Replacing the Optical Pick-Up Block
Please be sure to check thoroughly the parameters as par the “Op-
tical Pick-Up Block Checking Procedures” (Part No.: 9-960-027-
11) issued separately before replacing the optical pick-up block.
Note and specifications required to check are given below.
• FOK output: IC601 eg pin
When checking FOK, remove the lead wire to disc motor.
• RF signal P-to-P value: 0.35 to 0.65 Vp-p
Precautions for Checking Emission of Laser Diode
Laser light of the equipment is focused by the object lens in the
optical pick-up so that the light focuses on the reflection surface
of the disc. Therefore, be sure to keep your eyes more then 30 cm
apart from the object lens when you check the emission of laser
diode.
Laser Diode Checking Methods
During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper lid is closed while turning ON
the S801. (push switch type)
The following two checking methods for the laser diode are oper-
able.
• Method:
Emission of the laser diode is visually checked.
1. Open the upper lid.
2. With a disc not set, turn on the S801 with a screwdriver having
a thin tip as shown in Fig.1.
Note: Do not push the detection lever strongly, or it may be bent or dam-
aged.
3. Press the u button.
4. Observing the objective lens, check that the laser diode emits
light.
When the laser diode does not emit light, automatic power
control circuit or optical pickup is faulty.
In this operation, the objective lens will move up and down 5
times along with inward motion for the focus search.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
Fig. 1 Method to push the S801
detection lever
detection lever
S801
main board
SECTION 1
SERVICING NOTES

— 4 —
SECTION 2
GENERAL This section is extracted
from instruction manual.
Getting started
Locating the Controls
For details, see pages in parentheses.
CD player (front)
CD player (inside) CD player (rear)
1Display
(pages 8, 10, 11, 18, 19)
2REPEAT/ENTER button
(pages 9 - 11)
3PLAY MODE
button
(pages 9 - 11)
4./>
(AMS/search)
buttons
(pages 7, 10, 11)
5HOLD switch
(page 19)
6OPEN switch
(page 6)
7x(stop)/CHG (charge)
button
(pages 7, 20, 23)
qf G-PROTECTION
switch
(page 18)
qg AVLS switch
(page 19)
qh Battery compartment
(page 23)
8SOUND button
(page 18)
9u(play/pause)
button
(pages 7, 8, 11)
0DC IN 4.5 V
(external power
input) jack
(pages 6, 23)
qa LINE OUT
(OPTICAL) jack
(page 21)
qs i/REMOTE jack
(page 6)
qd VOLUME +/–
buttons
(page 7)
LCD remote control with builtin digital tuner
Note
Use only the supplied LCD remote
control with builtin digital tuner.You
cannot operate this CD player with the
remote control supplied with other CD
players.
qj Display
(pages 8, 12 - 17)
qk x(stop)/RADIO OFF
button
(pages 7, 12, 17, 20)
w; RADIO ON/BAND•FM
MODE button (pages 12 - 17)
wa HOLD switch
(page 19)
ws VOL (volume)
+/– buttons
(page 7)
wd Clip (rear)
ql Jog lever
u•MODE:
CD: play/pause (pages 7, 11)
Radio: selecting tuning mode (pages 14, 15)
./>•F –/F+:
CD: AMS/search (pages 7, 10, 11)
Radio: tuning,selecting preset number
(pages 12, 15, 16)
Press or slide the lever to operate your CD player.

— 5 —
SECTION 3
DISASSEMBLY
3-1. CABINET (UPPER)
3-2. CDM-3123EBA AND MAIN BOARD
Note : Follow the disassembly procedure in the numerical order given.
1 Five screws
(2
× 8)
2 Open the lid, battery case.
4 Flat cable
Three claws
Three claws
Claw
3 Cabinet (upper)
@ (There are 7 claws.)
Main board (CN801
)
CN501
S803
CN502
CN503
S802
1 Flat cable
6 Main board
(Be careful that S802 and S803
engage with the knob when
they are re-assembled.)
2 Two connectors
3 CD mechanism
(CDM-3123EBA)
5 Two screws
4 Knob (JOG)
Knob (AVLS)

— 6 —
SECTION 4
ELECTRICAL ADJUSTMENTS
The CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
Precautions for Check
1. Perform check in the order given.
2. UseYEDS-18 disc (Part No.: 3-702-101-01) unless otherwise
indicated.
3. Power supply voltage requirement: DC4.5 V in DC IN jack.
VOLUME button: Minimum
AVLS switch : NORM
HOLD switch : OFF
Checking Location:
– MAIN board (Side A) –
Focus bias Check
Condition:
• Hold the set in horizontal state.
Connection:
Procedure:
1. Connect the oscilloscope to the test pointsTP629 (RF) and
TP635(AGND) on the MAIN board.
2. Set a disc. (YEDS-18)
3. Press the ubutton.
4. Check the oscilloscope waveform is as shown below.
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.
RF Signal reference Waveform (Eye Pattern)
VOLT/DIV : 100 mV (With the 10:1 probe in use)
TIME/DIV : 500 ns
To watch the eye pattern, set the oscilloscope to AC range and
increasethe verticalsensitivityofthe oscilloscopeforeasywatch-
ing.
5. Stop revolving of the disc motor by pressing the xbutton.
oscilloscope
(AC range)
+
–
MAIN board
TP629 (RF)
TP635 (AGND)
2 k
Ω
RF level
0.35 to 0.65 Vp-p
TP629 (RF)
TP635 (AGND)

— 7 —
5-1. IC PIN FUNCTION DESCRIPTION
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50 —68
I/O
—
I/O
I
O
O
O
O
O
O
O
I
O
O
I
I
I
I
I
I
I
I
—
—
—
I
I
I
O
O
O
I
O
O
O
I
I
I/O
I
I
I
I
O
O
O
O
O
O
O
—
—
Pin Name
VSS
NC
FOK_1
AGCPWM_O
NC
NC
AMUTE_O
VCC2ON_O
XRST_O
SCK_O
MSDTI_I
MSDTO_O
WAKEUP_O
AD_SEL
AD_CHGMNT
AD_KEY2
AD_BATMNT
AD_KEY
AD_RMKEY
AD_DCINMNT
WP_OPEN
VREFL
VREFH
VDD
SCOR_I
GRSCOR_I
SPDL-MTR/FG_I
BEEP_O
NC
RMSCK_O
RMDATI_I
RMDATO_O
RMRW_O
RMRAT_O
WFCK_I
COMPON_I
SLVCD_I
AVLS_I
HOLD_I
BATDET_I
DSP_SEL_I
XHGON_I
XLAT_O
XSOE_O
VOL_LT_O
XPOWLT_O
XDOUTON_O
XAPC_OFF_O
NC
SEG14 —0
Description
Digital GND
—
FOK input
AGC PWM control (f=7.8kHz)
XWRE monitor (for debug purpose on)
XQOK monitor (for debug purpose on)
Analog mute on
VCC2 switching
System reset
Serial clock to CXD3027R
Serial input from CXD3027R
Serial output to CXD3027R
CXD3027R wake up
Mode selection
Charging monitor
Set key detection
Battery monitor
Lid key detection
Remocon key detection
DC-in monitor
Lid-open detection
Analog GND for A/D
Analog Vdd for A/D
Digital Vcpu
SCOR input
GRSCOR input
WFCK input
BEEP sound (2.06kHz, 50% duty)
—
Serial clock to CXD751
Serial input from CXD751
Serial output to CXD751
CXD751 readwrite selection
CXD751 serial data latch
—
G-protection selection
—
AVLS selection
HOLD selection
Bottom cell detection
“H”: CXD3027R, “L”: CXD3037R
Pick-up Vcc control
CXD3027R serial data latch
CXD3027R serial data output enable
Analog switch on when L/O inserted
TB2119F serial data latch
Digital out LED control
APC mute
—
LCD segment output
• IC801 TMP88CM22F-TR1 (MICRO COMPUTER)
SECTION 5
DIAGRAMS

— 8 —
Pin No.
69
70
71
72
73
74
75
76
77
78
79
80
I/O
—
—
—
—
—
I
I
O
O
I
I
O
Pin Name
V3
V2
V1
C1
C0
STOP
TEST
SCSY_0
XBACKLIGHT_O
RESET_I
XIN
XOUT
Description
Charge pump C
Charge pump C
0.5Vcpu input
Charge pump C
Charge pump C
STOP mode release signal input
68kHz pull-down
External BB control
LCD backlight control
MCU reset input
Crystal input from CXD3027R
No connection

D-FJ75TR
5-2. IC BLOCK DIAGRAMS
IC351 TA2120FN
IC401 TB2119F
+ –
+ –
+ –
23 20 19 18 17 16 15 14 13
234 5 678910 11 12
1
24
BIAS BEEP
PW
SW
MT
SW
ALC
DET
ATT
SW
PWC
SW
OUT B OUT A
BEEP
IN
BST
PW
B
PW
C
BST
NF
ADD
OUT
RF IN PWC
SW
OUT B OUT C OUT A PWR
GND
MIX
OUT
ALC
IN
ALC
DET
ATT
SW
IN AIN BGND
MT
TC
MT
SW
PW
SW
BIAS
BIAS
IN
BST
SW
BST
OUT
VCC
ADD
A
ADD B
21
22
PW
A
ALC ALC
1 2 3 4 5 6 7 8 16 17 18 19 20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
4142434445464748495051525354555657585960
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
1514131211109
HPOUT2
HPOUT3
HPOUT1
APCREF VHP
HCND
RO4
FO4
RO3
RO2
RO1
FO3
FO2
FO1
FI1 RI1 FI2 RI2 RS RF4 DCIN VCPU VCC1 RSTB DTC2D DTC1D INM1 RF1 BATM2 BATM1 INP1 INM4 CHGSW CHGMNT
MGND4
MGND3
MGND2
MGND1
VD34
VD23
VD12
VLGO1
VLGO2
VLG3
L1L
L1H
L2H
L2L
L3
PGND1
PGND2
PGND3
VIN
INP3
INM3
RF3
RF21
DTC3
PAPC
VINDET
VREF
L4
VG
GND
SYNC
CLOCK
DATA
LATCH
HIPC
HPI2 HPI1
FR4
RI3
FI3
PWM4
STNG
N.C.
WAKE UP
RF2
INM2
PWM
H/P
DRIVER
H BRIDGE
DRIVER4
H BRIDGE
DRIVER3
H BRIDGE
DRIVER2
H BRIDGE
DRIVER1
CONTROLLER
CONTROLLER
LEVEL
SHIFTER
LEVEL
SHIFTER
CONTROL
CHARGE
SAW GEN
CLK
OR OSC
BIAS
INTERFACE
STNBY
REFERENCE
BANDGAP
REFERENCE
(VREF)
— 9 — — 10 — — 11 —
5-3. BLOCK DIAGRAM
OPTICAL PICK-UP
BLOCK
(DAX-23E)
RF
A
B
E
F
LD
VCC
GND
PD
VR
FOCUS
COIL
TRACKING
COIL
IC401(1/2)
MOTOR/COIL DRIVE
FO2
36
RO2
34
32
30
28
26
M
SLED
MOTOR
40
38
M
SPINDLE
M902
M901
MOTOR
F+
F-
T+
T-
43
FI2
44
RI2
12
13
14
15
41 SFDR
46
SMDS
44
C176
42
TRDR
49
TFDR
48
FRDR
51
FFDR
50
DIGITAL SIGNAL PROC.
D/A CONV.
IC601
DIGITAL SERVO
85
D OUT
RFAC
71
RFDC
58
A
62
B
61
E
59
97L OUT1
LINE OUT
(OPTICAL)
104L OUT2
23
SDTO
25
CLOK
24
XLAT
28
XSOE
26
SENS
17
SCOR
35
FOK
21XRST
X601
16.9MHz
30
R4M
Q501
AVDD
PAPC
78
VLG02
69
42 SRDR
47
7
SYNC
FO3
RO3
FI3
RI3
FO4
RO4
FI4
RI4
FO1
RO1
FI1
RI1
C+
C-
S+
S-
MDP
43
3
1
4
IC402
XTAO
94
XTAI
93
F
60
DIGITAL
OUT
OPTICAL
J301
REMOTE
J302
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION LR6)
2PCS. 3V
DC IN 4.5V
J401
IC301
BATT B+
BATT B-
78
WDCK
83
WFCK
IC801
SYSTEM CONTROL
WP OPEN
21
AVLS
38
HOLD
93
COMPON
36
VCPU
OPEN
OFF
ON
S801
LIMIT
NORM
OFF
ON
AVLS
S802
HOLD
S803
G-PROTECTION
S804
SCK
10
MSDTO
12
XLAT
43
XSOE
44
MSDTI
11
SCOR
25
FOK
3
XIN
79
GRSCOR
26
WFCK
35
XRST
9
XPOWLT
46
SPDL MTR/FG
27
AD KEY
18
10
DATA
9
CLOCK
11
LATCH
13
AMUTE
47
XDOUT ON
14
AD SEL
7
AMUTE
45VOL LT
MUTE CONT
Q302
D601 MUTE
Q301
6
3
5
2
7
1
BIAS
28
BEEP
19
AD RMKEY
L IN
14
R IN
15 8
L OUT
IC351
HEADPHONE AMP
MUTE
18
BEEP
17
PWRSW
20
6
R OUT
7
VREF
+B SW
Q601
AVDD
TEST
TAP801
VCPU
32
RM DATO
IC802
TSB
SO
15
19TSB
31
RM DATI SI
14
30RM SCK SCK
16
34RM LAT XLT
17
33RM RW RW
18
MCLK
10
RESET
11
LCD
SWITCH UNIT
64
50
68
65
SEG0
SEG14
COM0
COM3
78
RESET
XHG ON
42
• Signal Path
: CD PLAY (ANALOG OUT)
: CD PLAY (OPTICAL OUT)
RECHARGEABLE
BATTERY
NH-DM2AA
2PCS. 2.4V
Q404
REG
Q412
Q402
D401
VCPU
DC DET
Q401,413
Q405
AVDD
48
RF4
51
VCC1
50
VCPU
61
VLGPO
47
INM4
49
DCIN
5
VG
59
BATM2
60
BATM1
65
VIN
80
VIN DET
2
L4
29
VD34
33
VD23
37
VD12
APC REF
79
BATT B-
D410
RS
46
CHG SW
45
RSTB
52
Q408
WAKEUP
SWITCH.
WAKEUP
8
DVDD
Q403
SWITCHING
Q406,407
8
VCC2 ON
71
L3
13
WAKEUP
4
AGC PWM
RF2
3
48
XAPC OFF
40
BAT DET
POWER CONTROL
IC401(2/2)
1
3
4
IC404
VCPU
20
DC INMNT
16

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D-FJ75TR
5-4. PRINTEDWIRING BOARD
Ref. No. Location
D401 A-8
D403 C-4
D404 A-7
D406 C-5
D409 A-5
D410 C-4
D461 C-10
D601 D-3
D602 D-9
D801 D-4
D802 D-4
D803 A-8
IC301 E-8
IC351 E-8
IC401 C-7
IC402 C-10
IC404 A-4
IC601 D-2
IC801 B-4
IC802 B-4
Q301 E-9
Q302 E-9
Q401 A-7
Q402 A-7
Q403 A-7
Q404 A-7
Q405 D-4
Q406 D-4
Q407 D-4
Q408 D-4
Q409 C-4
Q410 B-7
Q412 A-7
Q413 A-5
Q501 C-10
Q601 A-5
• Semiconductor
— 12 — — 13 — — 14 —
IC801
IC601
IC404
IC802
IC401
IC351 IC301
IC402
C814
C812
D803
D802
D801
C452
R817
C809
C808
C807
C810
R813
C805
C831
C415
C417
C414
R428
R419
R418
R429
L402
TAP401
C423
R421
C425
C424
R420
L604
L603
R355
R354
R643
C628
D602
R639
R647
R649
R638
R641
R648
R653 R655
R654
C642
C641
L602
C638R207
R107
R353
C354
C356
C455
VDR801
C454
R810
R811
R828
C407
C411
R411
C410
C436
C409
C402
C435
C433
R435
R437
TAP402
C404
C403
C405
C412
C422
R422
R423
R433
R434
R424
C426
C432
D403
Q409
JW403
R401
R465
R436
R402
L408
RV401
E
Q410
CH,E,HK
MODEL
CH,E,HK
MODEL
CH,E,FR,HK
MODEL
CH,E,FR,HK
MODEL
US,AEP,UK,CH,E
EE,HK MODEL
US,AEP,UK,CH,
E,EE,HK MODEL
CH,E,FR,HK
MODEL
CH,E,HK,FR
MODEL
CH,E,FR
HK MODEL
CH,E,FR,HK MODEL
CH,E,
HK MODEL
CH,E,FR,HK
MODEL
CH,E,HK
MODEL
CH,E,HK
MODEL
12
A
B
C
D
E
34567891011
Note on Printed Wiring Board:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•b: Pattern from the side which enables seeing.
• Abbreviation
CH : Chinese model
EE : East European model
FR : French model
HK : Hong Kong model
Caution:
Pattern face side: Partsonthepattern facesideseenfrom
(SIDE B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(SIDE A) the parts face are indicated.