Sony CFD-E55 Service manual
CFD-E55
SERVICE MANUAL
Ver 1.1 2000. 04
CD
Section
TAPE
Section
US Model
Canadian Model
E Model
Australian Model
Model Name Using Similar Mechanism CFD-Z500
CD Mechanism Type KSM-213CDM
Optical Pick-up Name KSS-213C
Model Name Using Similar Mechanism CFD-Z500
Tape Transport Mechanism Type MF-Z500-117
AUDIO POWER SPECIFICATIONS
(US model only)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION
With 3.2-ohm loads, both channels driven
from 100 - 10,000 Hz; rated 1.5 W per
channel-minimum RMS power, with no more
than 10 % total harmonic distortion in AC
operation.
Other Specifications
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance of
about 200 mm from the objective lens surface on
the optical pick-up block with 7 mm aperture.)
Spindle speed
200 r/min (rpm) to 500 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20 - 20,000 Hz +0/–0.5 dB
Wow and flutter
Below measurable limit
Radio section
– US, Canadian, E92*, Mexican models –
Frequency range
FM: 87.6 - 108 MHz
AM: 530 - 1,710 kHz
Aerials
FM: Telescopic aerial
AM: Built-in ferrite bar aerial
– Singapore, Argentine, Australian models –
Frequency range
FM: 87.6 - 108 MHz
AM: 531 - 1,602 kHz
SPECIFICATIONS
IF
FM: 10.7 MHz
AM/MW: 450 kHz
Aerials
FM: Telescopic aerial
AM/MW: Built-in ferrite bar aerial
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 120 sec. with Sony cassette C-60
Frequency response
TYPE I (normal): 70 - 13,000 Hz
General
Speaker
Full range: 8 cm (3
3.2 ohms, cone type (2)
Outputs
Headphones jack (stereo minijack)
For 16 - 68 ohms impedance headphones
Power output (excluding for US model)
2 W + 2 W (at 3.2 ohms, 10 % harmonic distortion
in AC operation)
Power requirements
For CD radio cassette-corder:
120 V AC, 60 Hz (US, Canadian, E92*,
Mexican models)
230 V AC, 50Hz (Singapore, Argentine,
Australian models)
9 V DC, 6 size D (R20) batteries
For memory back-up:
4.5 V DC, 3 size AA (R6) batteries
1
⁄
4
in.) dia.,
CD RADIO CASSETTE-CORDER
Power consumption
AC 17 W
Battery life
For CD radio cassette-corder:
FM recording
Sony manganese SUM-1 (N): approx. 9 h
Sony alkaline AM-1 (N): approx. 19 h
Tape playback
Sony manganese SUM-1 (N): approx. 5 h
Sony alkaline AM-1 (N): approx. 14 h
CD playback
Sony manganese SUM-1 (N): approx. 1.5 h
Sony alkaline AM-1 (N) : approx. 7 h
Dimensions
Approx. 304 × 169 × 262 mm (w/h/d)
3
⁄4 × 10 3⁄
8
(12 × 6
Mass
Approx. 3.6 kg (7 lb. 15 oz) (incl. batteries)
Supplied accessories
AC power cord (1)
Instruction manual (1)
*E92: Central and South America
Design and specifications are subject to change without
notice.
inches) (incl. projecting parts)
TABLE OF CONTENTS
1. SERVICING NOTES.............................................. 3
2. GENERAL .................................................................. 5
3. DISASSEMBLY ........................................................ 8
4. MECHANICAL ADJUSTMENTS...................... 14
5. ELECTRICAL ADJUSTMENTS
Tape Deck Section ......................................................... 14
Tuner Section ................................................................. 15
CD Section ..................................................................... 17
6. DIAGRAMS
6-1. Block Diagram – CD Section – .................................... 19
6-2 Block Diagram – TUNER Section – ............................ 21
6-3. Block Diagram – MAIN Section (Type A) – ............... 23
6-4. Block Diagram – MAIN Section (Type B, C) –........... 25
6-5. Block Diagram – MAIN Section (Type D) – ............... 27
6-6. Block Diagram – POWER SUPPLY Section – ............ 29
6-7. Printed Wiring Boards
– CD Section (Type A, B, C) – ...................................... 33
6-8. Printed Wiring Boards – CD Section (Type D) –......... 35
6-9. Schematic Diagram
– CD Section (Type A, B, C, D) – ................................. 37
6-10. Printed Wiring Boards
– MAIN/POWER SUPPLY Section (Type A, B) –....... 42
6-11. Printed Wiring Boards
– MAIN/POWER SUPPLY Section (Type C) –............ 45
6-12. Printed Wiring Boards
– MAIN/POWER SUPPLY Section (Type D) – ........... 50
6-13. Schematic Diagram
– MAIN (TUNER) Section (Type A, B, C, D) –........... 53
6-14. Schematic Diagram
– MAIN (AUDIO) Section (Type A, B, C, D),
POWER SUPPLY Section (Type A, B, C) –................. 58
6-15. Schematic Diagram
– POWER SUPPLY Section (Type D) – ....................... 61
6-16. Printed Wiring Boards
– DISPLAY Section (Type A, B) –................................ 63
6-17. Printed Wiring Boards
– DISPLAY Section (Type C) –..................................... 65
6-18. Printed Wiring Boards
– DISPLAY Section (Type D) – .................................... 67
6-19. Schematic Diagram
– DISPLAY Section (Type A, B, C, D) – ...................... 69
6-20. IC Pin Function Description .......................................... 76
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester , such as the Simpson 229 or RCA
WT -540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate lowvoltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A)
To Exposed Metal
Parts on Set
1.5 k
0.15 µF
Fig. A. Using an AC voltmeter to check AC leakage.
Ω
Earth Ground
AC
voltmeter
(0.75 V)
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.
7. EXPLODED VIEWS............................................... 78
8. ELECTRICAL PARTS LIST .............................. 85
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 MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
– 2 –
SECTION 1
SERVICING NOTES
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
CHUCK PLATE JIG ON REPAIRING
On repairing CD section, playing a disc without the CD lid, use
Chuck Plate Jig.
• Code number of Chuck Plate Jig: X-4918-255-1
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down 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.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
1. T urn POWER switch on with no disc inserted and make Function switch to CD position.
2. Open the lid for CD.
3. Turn on S701 as following figure.
4. Press the [ ] (CD) button.
5. Confirm the laser diode emission while observing the objecting lens. When there is no emission, Auto Power Control circuit or Optical Pick-up is broken.
Objective lens moves up and down three times for the focus
search.
u
– 3 –
S701
MODEL TYPE IDENTIFICATION
W
In this set, the routing of speaker lead wires and the boards have been changed in the midway of production, and the set is grouped into the
following four types depending on the specifications.
TYPE A: Original model.
TYPE B:To the original model, the routing of speaker lead wires is changed.
TYPE C:To the type B, the print patterns of board are changed.
TYPE D:To the type C, the shapes of boards are changed.
• Model Type Discrimination
Identify each type from the part number printed on each board by referring to the following table.
Also, each board is common to type A and type B, but routing of speaker lead wires is different. For details of different places, refer to “6.
Diagrams 6-10. Printed Wiring Boards – MAIN/POWER SUPPLY Section (Type A, B) –” (page 42, location A-1 and B-1).
Board
BATT (+) 1-675-297-11 1-675-297-12 1-677-315-11
BATT (–) 1-675-298-11 1-675-298-12 1-677-316-11
CD 1-675-290-11 1-675-290-12 1-677-308-11
CD MOTOR in common to all types
KEY 1 1-675-292-11 1-675-292-12 1-677-310-11
KEY 2 1-675-293-11 1-675-293-12 1-677-311-11
KEY 3 1-675-294-11 1-675-294-12 1-677-312-11
LCD 1-675-295-11 1-675-295-12 1-677-313-11
*1
LED
MAIN 1-675-289-11 1-675-289-12 1-677-307-11
POWER 1-675-291-11 1-675-291-12 1-677-309-11
REC SW 1-675-296-11 1-675-296-12 1-677-314-11
*1) For the LED board, only the lower five digits of part number is printed.
Type A, B Type C Type D
Part No.
998-11 998-12 319-11
• Precaution on Replacing the Boards
The supplied boards are all type D, and therefore if the board is replaced, use the board of type D only whichever model is serviced.
However, on the type D model, the number of pins of connectors that connect MAIN board to CD board, and MAIN board to POWER
board has been changed, and accordingly the type D is not interchangeable with type A, B, and C respectively.
Therefore, if even one of MAIN, CD, and POWER boards is replaced, replace all three boards simultaneously.
MODEL IDENTIFICATION
MODEL NO.
US, Canadian, E (AC 120V area),
Mexican models: AC: 120 V 60 Hz 17 W
Singapore, Argentine,
Australian models: AC: 230 V - 50 Hz 17
CFD-E55
– 4 –
SECTION 2
GENERAL
This section is extracted from
instruction manual.
– 5 –
– 6 –
– 7 –
DISASSEMBLY
e
• This set can be disassembled in the order shown below.
SECTION 3
Set
Lower cabinet
section
POWER board
Front cabinet
section
Tape mechanism
deck section
Note: Follow the disassembly procedure in the numerical order given.
LOWER CABINET SECTION
2 three screws
(BVTP3 × 12)
MAIN board
CD board
Cassette lid assy
and cassette holder
Head (HRP301), Motor assy (M301)
and belt
2 five screws
(BVTP3 × 12)
Optical pick-up
section
CD lid
section
5 lower cabinet section
TYPE A
4 connector
(CNP310)
3
1 lid, battery cas
4 two connectors
(CNP704, CNP308)
– 8 –
4 connector
(CNP307)
POWER BOARD
d
1 three screws
(BVTP3 × 10)
2 RETAINER board
3 POWER boar
FRONT CABINET SECTION
2 two screws
(BVTP3 × 12)
A
1 three connectors
(CNP302, 303, 309)
2 two screws
(BVTP3 × 12)
3 Remove the front
cabinet section in
the direction of arrow A.
– 9 –
upper cabinet
section
MAIN BOARD
2 two screws
(BVTP3 × 10)
1 two connectors
(CNP304, 305)
1 two connectors
(CNP306, 312)
TYPE A
1 connector
(CNP311)
2 two screws
(BVTP3 × 10)
3 MAIN board
CD BOARD
3 connector
(CNP703)
1 connector
(CNP1)
1 two screws
(BVTP3 × 10)
2
5 CD board
1 two screws
(BVTP3 × 10)
3 connector
(CNP702)
4 wire, parallel (FFC) (16 core)
(CNP701)
– 10 –
• CONNECTOR SETTING (TYPE B, C, D)
Note: When connecting speaker lead,
set it as shown in the figure.
speaker lead
bracket (SP)
(TYPE D)
CNP307
speaker lead
CNP308
MAIN board
CD board
bracket (SP)
(TYPE B, C)
CNP704
POWER board
BH354
BH351
BH353
CNP352
OPTICAL PICK-UP SECTION
1 two screws
(PWH2.6 × 10)
2 optical pick-up
section
1 two screws
(PWH2.6 × 10)
– 11 –
CD LID SECTION
)
2 damper
1 screws
(BTP3 × 10)
6 CD lid section
4 Open the CD lid section
5 Remove the boss.
TAPE MECHANISM DECK SECTION
1 Push the button (ST/EJ).
2 Open the cassette lid assy.
3 spring (CD)
4 tape mechanism deck section
3 two screws
(BVTP3 × 10
3 two screws
(BTP3 × 10)
– 12 –
CASSETTE LID ASSY AND CASSETTE HOLDER
)
)
8 boss
7 spring
(cassette)
8 boss
9 cassette lid assy and
“holder, cassette”
6 damper
3 two screws
(BVTP3 × 10
4 speaker (R ch)
5 screw
(BVTP3 × 10)
1 two screws
(BVTP3 × 10)
2 bracket (SP)
(TYPE A, B, C)
HEAD (HRP301), MO TOR ASSY (M301) AND BELT
REC SW board
3 two screws
(B2.6 × 5)
2 bracket (SP)
(TYPE D)
1 connector
(CNP301)
2 head (HRP301)
4 motor assy (M301
5 belt
– 13 –
SECTION 4
MECHANICAL ADJUSTMENTS
SECTION 5
ELECTRICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head pinch roller
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head demagnetizer. (Do not bring the head magnetizer close to the erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
• Torque Measurement
Mode Torque Meter Meter Reading
FWD CQ-102C (30 – 70 g•cm)
FWD
Back Tension
FF CQ-201B (more than 60 g•cm)
REW CQ-201B (more than 60 g•cm)
CQ-102C (1.5 – 5.5 g•cm)
• Tape T ension Measurement
Mode Tension Meter Meter Reading
FWD CQ-403A
2.95 – 6.86 mN•m
(0.42 – 0.97 oz•inch)
0.15 – 5.39 mN•m
(0.021 – 0.076 oz•inch)
more than 5.89 mN•m
(more than 0.83 oz•inch)
more than 5.89 mN•m
(more than 0.83 oz•inch)
more than 100 g
(more than 3.53 oz)
PRECAUTION
1. Setting
SOUND control : OFF
TAPE DECK SECTION 0 dB=0.775 V
Test tape
Type Signal Used for
WS-48A 3 kHz, 0 dB Tape Speed Adjustment
Tape Speed Adjustment
Setting:
Function: TAPE
POWER board
BH352 pin 1 (TYPE A)
Test tape
WS-48A
(3 kHz, 0 dB)
Procedure:
1. Playback WS-48A (tape center) in the FWD state.
2. Adjust the volume in CAPSTAN/REEL motor (M301) so that
the frequency counter reading becomes 3,000 Hz.
Specified Value: 2,985 to 3,015 Hz
3. Confirm that the frequency at the beginning and that at the
end of tape winding are between 2,955 to 3,045 Hz.
CNP352 pin 1 (TYPE B, C, D)
frequency counter
3.2 Ω
set
POWER board
BH352 pin 2 (TYPE A)
CNP352 pin 2 (TYPE B, C, D)
+
–
Adjustment Location:
– TAPE deck block –
Tape speed
Adjustment
CAPSTAN/REEL motor
(M301)
– 14 –
TUNER SECTION 0 dB=1 µV
r
)
)
[AM]
Setting:
Function : RADIO
BAND button : AM
POWER board
BH352 pin 1 (TYPE A)
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
Output level: as low as possible
Put the lead-wire
antenna close to
the set.
set
CNP352 pin 1 (TYPE B, C, D
3.2 Ω
POWER board
BH352 pin 2 (TYPE A)
CNP352 pin 2 (TYPE B, C, D)
level meter
+
–
( ): Singapore, Argentine, Australian models
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1 450 kHz
AM VCO VOLTAGE ADJUSTMENT
Adjustment Part Frequency Display Reading on Digital Voltmeter
L4 530 kHz (531 kHz) 1.0 ± 0.1 V
Confirmation
Adjust for a maximum reading on level meter
L3 620 kHz (621 kHz)
CT2 1,400 kHz (1,404 kHz)
1,710 kHz
(1,611 kHz)
AM TRACKING ADJUSTMENT
below 5.6 V (below 5.3 V)
[FM]
Setting:
Function : RADIO
BAND button: FM
POWER board
BH352 pin 1 (TYPE A)
CNP352 pin 1 (TYPE B, C, D
FM RF signal
generator
0.01 µF
22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible
MAIN board
TP (GND)
MAIN board
TP (GND)
TP (VT)
MAIN board
TP (ANT)
set
digital voltmete
100 k Ω
level meter
3.2 Ω
+
–
POWER board
BH352 pin 2 (TYPE A)
CNP352 pin 2 (TYPE B, C, D)
• Repeat the procedures in each adjustment several times, and the
tracking adjustments should be finally done by the trimmer capacitors.
• Remove FM antenna in FM adjustment.
FM VCO VOLTAGE ADJUSTMENT
Adjustment Part Frequency Display Reading on Digital Voltmeter
L2 108 MHz 4.0 ± 0.1 V
Confirmation 87.5 MHz 1.7 ± 0.2 V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1 87.5 MHz
CT1 108 MHz
Adjustment Location: MAIN board (See page 16)
– 15 –
Adjustment Location (TYPE A, B, C):
t
(TYPE D: Almoset same as TYPE A, B, C)
– MAIN BOARD (Component Side) –
T1 AM IF Adjustment
FM Tracking Adjustment
L2
FM VCO Voltage Adjustment
– MAIN BOARD (Conductor Side) –
L1
CT1
L4
AM VCO Voltage Adjustment
L3
AM Tracking Adjustmen
CT2
TP (VT) TP (GND)
– 16 –
TP (ANT)
CD SECTION
CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
Focus Bias Check
1. Connect the oscilloscope to TP (RFO) and TP (GND) on the
CD board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the [ ] (CD) button.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
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)
u
VOLT/DIV: 0.2 V (with the 10: 1 probe in use.)
TIME/DIV: 500 ns
1.2 ± 0.1 Vp-p
When observing the eye pattern, set the oscilloscope
for AC range and raise vertical sensitivity.
Adjustment Location (TYPE A, B, C):
(TYPE D: Almost same as TYPE A, B, C)
– CD BOARD (Conductor Side) –
TP (GND)
TP (RFO)
IC701
– 17 –
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