Sony HCD-ECL77BT User manual

SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
HCD-ECL77BT/ECL99BT
SPECIFICATIONS
COMPACT DISC RECEIVER
9-896-046-01
2014H33-1
© 2014.08
US Model
Canadian Model
Russian Model
HCD-ECL99BT
AEP Model
Brazilian Model
HCD-ECL77BT
UK Model
E Model
HCD-ECL77BT/ECL99BT
Ver. 1.0 2014.08
• HCD-ECL77BT is compact disc receiver in MHC-ECL77BT.
• HCD-ECL99BT is compact disc receiver in MHC-ECL99BT.
Model Name Using Similar Mechanism HCD-EC719iP/EC919iP/ECL5
Mechanism Type TDL-5
Photo: HCD-ECL99BT
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
(The United States model only)
driven, from 120 – 10,000 Hz; rated
RMS power, with no more than
0.7% total harmonic distortion from
30 watts per channel minimum
With 3 ohms loads, both channels
250 milliwatts to rated output.
HCD-ECL99BT
U.S. model:
Front speaker:
Output power (reference):
235 W + 235 W (per channel at
3 ohms, 1 kHz)
Subwoofer:
Output power (reference):
230 W (at 3 ohms, 100 Hz)
Other models:
Front speaker:
Power output (rated):
60 W + 60 W (at 3 ohms, 1 kHz, 1%
THD)
Output power (reference):
235 W + 235 W (per channel at
3 ohms, 1 kHz)
Subwoofer:
Output power (reference):
230 W (at 3 ohms, 100 Hz)
HCD-ECL77BT
Brazilian model:
Output power (reference):
320 W (160 W per channel, at
3 ohms, 1 kHz, 10% THD)
Other models:
Power output (rated):
60 W + 60 W (at 3 ohms, 1 kHz, 1%
THD)
Output power (reference):
235 W + 235 W (per channel at
3 ohms, 1 kHz)
Input
Mideastern, African and Latin American
models:
Other models:
AUDIO IN (stereo mini jack):
Sensitivity 800 mV, impedance
10 kilohms
AUDIO IN L/R: Sensitivity 800 mV,
impedance 10 kilohms
Outputs
FRONT SPEAKERS (HCD-ECL99BT)/
SPEAKERS (HCD-ECL77BT): Accepts
SUBWOOFER (HCD-ECL99BT only):
Accepts impedance of 3 ohms
impedance of 3 ohms
CD player section
System: Compact disc and digital audio
system
Laser Diode Properties
Emission Duration: Continuous
Laser Output*: Less than 44.6μW
* This output is the value
measurement at a distance of
200mm from the objective lens
surface on the Optical Pick-up Block
with 7mm aperture.
1.5 A
USB section
(USB) port: Type A, maximum current
Supported audio formats (MP3 discs and
USB devices only)
Supported bit rate:
MP3 (MPEG 1 Audio Layer-3):
Sampling frequencies:
MP3 (MPEG 1 Audio Layer-3):
32/44.1/48 kHz
WMA*: 44.1 kHz
32 kbps – 320 kbps, VBR
WMA*: 32 kbps – 192 kbps, VBR
* USB devices only
Tuner section
FM stereo
North American model:
FM superheterodyne tuner
Other models:
FM/AM superheterodyne tuner
Antenna:
FM lead antenna
AM loop antenna (except for North
American model)
FM tuner section:
Tuning range:
North American and Brazilian
models: 87.5 MHz – 108.0 MHz
(100 kHz step)
Other models: 87.5 MHz – 108.0 MHz
(50 kHz step)
AM tuner section (except for North
American model):
Tuning range:
European and Russian models:
531 kHz – 1,602 kHz (9 kHz step)
African and Mideastern models:
531 kHz – 1,602 kHz (9 kHz step)
530 kHz – 1,610 kHz (10 kHz step)
Other models:
531 kHz – 1,710 kHz (9 kHz step)
530 kHz – 1,710 kHz (10 kHz step)
BLUETOOTH section
Communication system:
BLUETOOTH Standard version 3.0
Output:
BLUETOOTH Standard Power Class 2
Maximum communication range:
Line of sight approx. 10 m (33 feet) 1)
Frequency band:
2.4 GHz band (2.4000 GHz –
2.4835 GHz)
Modulation method:
FHSS (Freq Hopping Spread
Spectrum)
Compatible BLUETOOTH proles2):
A2DP (Advanced Audio Distribution
Prole)
AVRCP 1.3 (Audio Video Remote
Control Prole)
SPP (Serial Port Prole)
Supported codecs:
SBC (Sub Band Codec)
AAC (Advanced Audio Coding)3)
1) The actual range will vary depending
on factors such as obstacles between
devices, magnetic elds around a
microwave oven, static electricity,
reception sensitivity, antenna’s
performance, operating system, software
application, etc.
2) BLUETOOTH standard proles indicate the
purpose of BLUETOOTH communication
between devices.
3) Except for North American model
General
Power requirements:
60 Hz
North American model: AC 120 V,
Mexican and Brazilian models:
Other models: AC 120 V – 240 V,
AC 120 V – 240 V, 60 Hz
HCD-ECL77BT: 75 W
HCD-ECL99BT: 90 W
50/60 Hz
Power consumption:
Standby power consumption (at the
Power Saving mode):
When BLUETOOTH standby mode is
set to o: 0.5 W (eco mode)
When BLUETOOTH standby mode is
HCD-ECL99BT: Approx. 193 mm
× 300 mm × 260 mm (7 5/8in ×
11 3/4in × 10 1/4in)
HCD-ECL77BT: Approx. 193 mm
HCD-ECL99BT: Approx. 3.1 kg (6 lb
13 3/8oz)
HCD-ECL77BT: Approx. 3.1 kg (6 lb
13 3/8oz)
× 300 mm × 260 mm (7 5/8in ×
11 3/4in × 10 1/4in)
set to on: 4 W (all wireless network
ports on)
Dimensions (W/H/D, including largest
protrusions) (excl. speakers):
Mass (excl. speakers):
Design and specications are subject to
change without notice.

HCD-ECL77BT/ECL99BT
2
SAFETY-RELATED COMPONENT WARNING!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH 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
other than those specified herein may result in hazardous radia-
tion exposure.
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing 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 low-voltage
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)
1.5 kΩ0.15 μF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC-
TIONNEMENT. NE REMPLACER CES COMPOSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
License and Trademark
Notice
MPEG Layer-3 audio coding
technology and patents licensed
from Fraunhofer IIS and Thomson.
Windows Media is either a registered
trademark or trademark of Microsoft
Corporation in the United States
and/or other countries.
This product is protected by
certain intellectual property rights
of Microsoft Corporation. Use or
distribution of such technology
outside of this product is prohibited
without a license from Microsoft or
an authorized Microsoft subsidiary.
The BLUETOOTH® word mark and
logos are registered trademarks
owned by Bluetooth SIG, Inc. and
any use of such marks by Sony
Corporation is under license.Other
trademarks and trade names are
those of their respective owners.
The N Mark is a trademark or
registered trademark of NFC Forum,
Inc. in the United States and in other
countries.
Android™ is a trademark of Google
Inc.
Google Play™ is a trademark of
Google Inc.
iPhone and iPod touch are
trademarks of Apple Inc., registered
in the U.S. and other countries. App
Store is a service mark of Apple Inc.
“Made for iPod” and “Made for
iPhone”mean that an electronic
accessory has been designed to
connect specically to iPod or
iPhone,respectively, and has been
certied by the developer to meet
Apple performance standards. Apple
is not responsible for the operation
of this device or its compliance with
safety and regulatory standards.
Please note that the use of this
accessory with iPod or iPhone may
aect wireless performance.
All other trademarks and registered
trademarks are of their respective
holders. In this manual, TM and ®
marks are not specied.
CAUTION
T
he use of optical instruments with this
product will increase eye hazard.
Except for customers in the USA and
Canada
T
his appliance is classied as a CLASS 1
LASER product. This marking is located
on the rear exterior.

HCD-ECL77BT/ECL99BT
3
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electro-
static 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
pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
1. SERVICING NOTES ............................................. 3
2. DISASSEMBLY
2-1. Disassembly Flow........................................................... 7
2-2. Side Cover, Top Cover Assy ........................................... 8
2-3. Power Cord (AC1), Rear Panel Block ............................ 9
2-4. CD Door.......................................................................... 10
2-5. Front Panel Block ........................................................... 10
2-6. Main Chassis Block ........................................................ 11
2-7. MAIN Board ................................................................... 11
2-8. POWER Board................................................................ 12
2-9. Fuse (F501) ..................................................................... 13
2-10. FRONT Board................................................................. 13
2-11. USB Board...................................................................... 14
2-12. NFC Module ................................................................... 14
2-13. Loader with FFC (TDL-5) (CDM1) ............................... 15
2-14. Service Position .............................................................. 15
3. TEST MODE ............................................................ 16
4. ELECTRICAL CHECK ......................................... 17
5. DIAGRAMS
5-1. Block Diagram (1/2) ....................................................... 18
5-2. Block Diagram (2/2) ....................................................... 19
5-3. Printed Wiring Board - MAIN Board -........................... 21
5-4. Schematic Diagram - MAIN Board (1/8) -..................... 22
5-5. Schematic Diagram - MAIN Board (2/8) -..................... 23
5-6. Schematic Diagram - MAIN Board (3/8) -..................... 24
5-7. Schematic Diagram - MAIN Board (4/8) -..................... 25
5-8. Schematic Diagram - MAIN Board (5/8) -..................... 26
5-9. Schematic Diagram - MAIN Board (6/8) -..................... 27
5-10. Schematic Diagram - MAIN Board (7/8) -..................... 28
5-11. Schematic Diagram - MAIN Board (8/8) -..................... 29
5-12. Printed Wiring Board - FRONT Board -......................... 30
5-13. Schematic Diagram - FRONT Board - ........................... 31
5-14. Printed Wiring Board - USB Board -.............................. 32
5-15. Schematic Diagram - USB Board -................................. 33
5-16. Printed Wiring Board - POWER Board -........................ 34
5-17. Schematic Diagram - POWER Board - .......................... 35
5-18. Schematic Diagram - TUNER Board - ........................... 36
5-19. Printed Wiring Board - TUNER Board - ........................ 37
6. EXPLODED VIEWS
6-1. Cover Section.................................................................. 38
6-2. Rear Panel Section .......................................................... 39
6-3. Front Panel Section......................................................... 40
6-4. MAIN Board Section ...................................................... 41
6-5. POWER Board Section................................................... 42
TABLE OF CONTENTS The SERVICING NOTES contains important information for
servicing. Be sure to read this section before repairing the
unit.

HCD-ECL77BT/ECL99BT
4
MODEL IDENTIFICATION
Distinguish by model number label stuck on the rear side of a main unit.
Note: The printed contents of following figure model number label may be different from the model number label of a main unit.
– Rear view –
MODEL NUMBER LABEL
HCD-ECL77BT:
Argentina model
HCD-ECL99BT:
Argentina model
HCD-ECL99BT:
Canadian model
HCD-ECL99BT:
UK model
HCD-ECL99BT: 120V AC area in E (E2)
and 220 – 240V AC area in E (E4) models
HCD-ECL99BT:
Chilean and Peruvian models (E51)
HCD-ECL99BT:
240V AC area in E model (E93)
HCD-ECL99BT:
Mexican model
HCD-ECL99BT:
US model
HCD-ECL99BT:
Russian model
HCD-ECL77BT:
AEP and UK models
HCD-ECL77BT: 120V AC area in E (E2)
and 220 – 240V AC area in E (E4) models
HCD-ECL77BT:
Chilean and Peruvian models (E51)
HCD-ECL77BT:
240V AC area in E model (E93)
HCD-ECL77BT:
Mexican model
HCD-ECL77BT:
Brazilian model

HCD-ECL77BT/ECL99BT
5
DESTINATION ABBREVIATIONS
The following abbreviations for model destinations are used in this
service manual.
• Abbreviations
AR : Argentina model
BR : Brazilian model
CND : Canadian model
E2 : 120V AC area in E model
E4 : 220 – 240V AC area in E model
E51 : Chilean and Peruvian models
E93 : 240V AC area in E model
MX : Mexican model
RU : Russian model
CAPACITOR ELECTRICAL DISCHARGE PROCESSING
When checking the board, the electrical discharge is necessary for
the electric shock prevention.
Connect the resistor to both ends of respective capacitors.
• POWER Board
CE503, CE504
– POWER Board (Conductor Side) –
800 :/2 W
(for CE504)
800 :/2 W
(for CE503)
ABOUT PARTS REPAIR OF EACH BOARDS
When each boards installed in this unit are defective, individual
electrical parts that the mount is done cannot be replaced. When
each boards are defective, replace the mounted board or the whole
parts including an applicable board.
Printed wiring board and Schematic diagram that have been de-
scribed on this service manual are for reference.
NOTE THE REPLACING OF MAIN BOARD OR NFC
MODULE
When replacing the MAIN board or the NFC module, be sure re-
place both at the same time.
The MAIN board or the NFC module cannot replace with single.
TEST DISCS
Use following TEST DISC (for CD) when this unit confirms the
operation and checks it.
Part No. Description
3-702-101-01 DISC (YEDS-18), TEST
4-225-203-01 DISC (PATD-012), TEST
RELEASING THE DISC TRAY LOCK
The disc tray lock function for the antitheft of sample disc in the
shop is equipped.
Releasing Procedure:
1. Press the [?/1] button to turn the power on.
2. Press two buttons of the [x] and [Z] simultaneously for five
seconds.
3. The message “UNLOCKED” is displayed on the fluorescent
indicator tube and the disc tray is unlocked.
Note: When “LOCKED” is displayed, the disc tray lock is not released by
turning power on/off with the [?/1] button.

HCD-ECL77BT/ECL99BT
6
HOW TO EJECT THE DISC WHEN POWER SWITCH TURN OFF
3Pull out the disc tray.
1Refer to “SECTION 2. DISASSEMBLY” (page 7), remove the side cover,
the top cover assy and the rear panel block from the unit.
– Rear view –
2Turn the traverse gear
in the direction of the
arrow.
top side
– Rear bottom view –

HCD-ECL77BT/ECL99BT
7
SECTION 2
DISASSEMBLY
• This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
2-2. SIDE COVER,
TOP COVER ASSY
(Page 8)
SET
2-3. POWER CORD (AC1),
REAR PANEL BLOCK
(Page 9)
2-4. CD DOOR
(Page 10)
2-6. MAIN CHASSIS BLOCK
(Page 11)
2-8. POWER BOARD
(Page 12)
2-9. FUSE (F501)
(Page 13)
2-7. MAIN BOARD
(Page 11)
2-11. USB BOARD
(Page 14)
2-12. NFC MODULE
(Page 14)
2-14. SERVICE POSITION
(Page 15)
2-13. LOADER WITH FFC (TDL-5) (CDM1)
(Page 15)
2-10. FRONT BOARD
(Page 13)
2-5. FRONT PANEL BLOCK
(Page 10)

HCD-ECL77BT/ECL99BT
8
Note: Follow the disassembly procedure in the numerical order given.
2-2. SIDE COVER, TOP COVER ASSY
3
3
6Remove the top cover assy
in the direction of the arrow.
7top cover assy
2five claws
2two claws
2five claws
4right side cover
4left side cover
5four claws
2two claws
2two claws
2two claws
1rear screw
(black 3 u8)
1rear screw
(black 3 u8)
1rear screw
(black 3 u8)
1rear screw
(black 3 u8)
1rear screw
(black 3 u8)
1rear screw
(black 3 u8)

HCD-ECL77BT/ECL99BT
9
2-3. POWER CORD (AC1), REAR PANEL BLOCK
1connector (XP16)
2fan connector
(XP14)
5claw
5claw
7rear panel block
6Remove the rear panel block
in the direction of the arrow.
8power cord connector
(CN501)
9power cord
(AC1)
CN501 claw
power cord
– Rear view –
5claw
5claw
(ECL99BT)
(ECL99BT)
OK
NG
Note 2: When installing the rear
panel block, check that
speaker terminals are
properly secured.
Speaker terminals are
fitted to the surface.
Speaker terminals has
been depressed.
4screw
(3 u6)
4screw
(3 u6)
4screw
(3 u6)
3
Power cord setting
– Rear view –
Note 1: When installing the power cord,
check the direction of connector.
(ECL77BT)
OK
NG
Speaker terminals are
fitted to the surface.
Speaker terminals has
been depressed.

HCD-ECL77BT/ECL99BT
10
2-4. CD DOOR
2-5. FRONT PANEL BLOCK
4CD door
3four
claws
2Pull out the disc tray.
– Rear view –
1Turn the traverse gear
in the direction of the
arrow.
top side
– Rear bottom view –
5two
claws
4connector
(XP8)
5two
claws
6front panel block
– Rear right view –
3connector
(XP15)
2connector
(XP7)
1connector
(XP19)
Wire setting
– Right view –
MAIN
board
front panel block
resistor
Note 1: Wire from NFC module
is lower.
Note 2: Twist the wire around the
two wires from the loader
with FFC once.
Note 3: When installing the wire,
be careful not to touch the
resistor.