Read Sony HT-CT370 Service Manual online
SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
HT-CT370
SA-CT370
SPECIFICATIONS
HT-CT370
SOUND BAR
SA-CT370
ACTIVE SPEAKER SYSTEM
9-893-957-04
2014G33-1
©
2014.07
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
PX Model
Ver. 1.3 2014.07
• All of the units included in the HT-CT370 (SA-CT370/
SA-WCT370) are required to confi rming operation of SA-
CT370. Check in advance that you have all of the units.
CT370. Check in advance that you have all of the units.
COMPONENT MODEL NAME
HT-CT370
Bar Speaker (Active Speaker System)
SA-CT370
Subwoofer (Active Subwoofer)
SA-WCT370
Amplifier section
U.S. models:
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
(FTC)
Front L + Front R:
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
(FTC)
Front L + Front R:
With 4 ohms loads, both channels driven, from 200 - 20,000 Hz;
rated 35 Watts per channel minimum RMS power, with no more than
1% total harmonic distortion from 250 milliwatts to rated output.
rated 35 Watts per channel minimum RMS power, with no more than
1% total harmonic distortion from 250 milliwatts to rated output.
POWER OUTPUT (reference)
Front L/Front R: 100 Watts (per channel at 4 ohms, 1 kHz)
Except US and Brazilian models:
POWER OUTPUT (rated)
POWER OUTPUT (rated)
Front L + Front R: 50 W + 50 W
(at 4 ohms, 1 kHz, 1% THD)
(at 4 ohms, 1 kHz, 1% THD)
POWER OUTPUT (reference)
Front L/Front R: 100 Watts (per channel at 4 ohms, 1 kHz)
Brazilian model:
RMS POWER OUTPUT:
The following values were measured at 127 V AC 60 Hz
Front L + Front R:
100 W (50 W per channel × 2, at 4 ohms, 1 kHz, 10% THD*)
100 W (50 W per channel × 2, at 4 ohms, 1 kHz, 10% THD*)
* Total harmonic distortion
Inputs
HDMI IN 1/2/3*
ANALOG IN
DIGITAL IN (OPT (TV))
ANALOG IN
DIGITAL IN (OPT (TV))
*
These 3 jacks are identical. Using any of them makes no difference.
Output
HDMI OUT (TV (ARC))
BLUETOOTH section
Communication system
BLUETOOTH Specification version 3.0
Output
BLUETOOTH Specification Power Class 2
Maximum communication range
Line of sight approx. 10 m (33 ft)
1)
Maximum number of devices to be registered
9 devices
Frequency band
2.4 GHz band (2.4000 GHz - 2.4835 GHz)
Modulation method
FHSS (Freq Hopping Spread Spectrum)
Compatible BLUETOOTH profiles
2)
A2DP (Advanced Audio Distribution Profile)
AVRCP 1.3 (Audio Video Remote Control Profile)
AVRCP 1.3 (Audio Video Remote Control Profile)
Supported Codecs
3)
SBC
4)
, AAC
5)
Transmission range (A2DP)
20 Hz - 20,000 Hz (Sampling frequency 44.1 kHz)
1) The actual range will vary depending on factors such as obstacles
between devices, magnetic fields around a microwave oven, static
electricity, cordless phone, reception sensitivity, operating system,
software application, etc.
electricity, cordless phone, reception sensitivity, operating system,
software application, etc.
2) BLUETOOTH standard profiles indicate the purpose of BLUETOOTH
communication between devices.
3) Codec: Audio signal compression and conversion format
4) Subband Codec
5) Advanced Audio Coding
4) Subband Codec
5) Advanced Audio Coding
Front L/Front R speaker section
Speaker system
Full-range speaker system, Acoustic suspension
Speaker
60 mm (2 3/8 in) cone type
Rated impedance
4 ohms
General
Power requirements
120 V AC, 60 Hz (US and Canadian models)
220 V - 240 V AC, 50 Hz/60 Hz
(AEP, Russian, UK, Australian, Singapore, Argentina and Thai models)
220 V - 240 V AC, 50 Hz/60 Hz
(AEP, Russian, UK, Australian, Singapore, Argentina and Thai models)
(PX, Saudi Arabia, Latin American and Brazilian models)
110 V - 240 V AC, 50 Hz/60 Hz
Power consumption
On: 34 W
Standby mode (Control for HDMI is set to on): 0.5 W or less
Standby mode (Control for HDMI is set to off): 0.3 W or less
BLUETOOTH Standby mode: 0.5 W or less
Standby mode (Control for HDMI is set to on): 0.5 W or less
Standby mode (Control for HDMI is set to off): 0.3 W or less
BLUETOOTH Standby mode: 0.5 W or less
Dimensions (approx.) (w/h/d)
900 mm × 50 mm × 113 mm (35 1/2 in × 2 in × 4 1/2 in)
(without wall mounting brackets)
900 mm × 113 mm × 72 mm (35 1/2 in × 4 1/2 in × 2 7/8 in)
(with wall mounting brackets)
(without wall mounting brackets)
900 mm × 113 mm × 72 mm (35 1/2 in × 4 1/2 in × 2 7/8 in)
(with wall mounting brackets)
Mass (approx.)
2.4 kg (5 Ib 4 5/8 oz)
Speaker system
Wireless Sound Specification version 2.0
Frequency band
2.4 GHz (2.4000 GHz - 2.4835 GHz)
Modulation method
Pi / 4 DQPSK
Digital audio input formats supported by the system
* It is possible to input these formats only with HDMI connection.
Wireless transmitter section
Dolby Digital
DTS-HD Master Audio*
Dolby Digital Plus*
DTS-HD High Resolution Audio*
Dolby TrueHD*
DTS-HD Low Bit Rate*
DTS
Linear PCM 2ch 48 kHz or less
DTS 96/24
Linear PCM Maximum 7.1ch 192 kHz or less*
– Continued on next page –
Photo: SA-CT370
HT-CT370
2
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.
aged by heat.
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.
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
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.
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)
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 k
Ω
0.15
μF
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
Accesseries
Remote control (1)
R6 (size AA) batteries (2)
Optical digital cable for a TV (1)
Speaker pads for the subwoofer (4)
Wall mounting brackets (2) and screws (2)
Startup Guide (1)
Operating Instructions (1)
R6 (size AA) batteries (2)
Optical digital cable for a TV (1)
Speaker pads for the subwoofer (4)
Wall mounting brackets (2) and screws (2)
Startup Guide (1)
Operating Instructions (1)
Video formats supported by the system
Input/Output (HDMI Repeater block)
*1
YCbCr 4:2:0/Supported 8-bit only
*2
Supported 8-bit only
Design and specifications are subject to change without notice.
File
2D
3D
Frame
packing
Side-by-
Side (Half)
Over-Under
(Top-and-
Bottom)
4096 × 2160p @ 59.94/60 Hz
*1
4096 × 2160p @ 50 Hz
*1
4096 × 2160p @ 23.98/24 Hz
*2
3840 × 2160p @ 59.94/60 Hz
*1
3840 × 2160p @ 50 Hz
*1
3840 × 2160p @ 29.97/30 Hz
*2
3840 × 2160p @ 25 Hz
*2
3840 × 2160p @ 23.98/24 Hz
*2
1920 × 1080p @ 59.94/60 Hz
1920 × 1080p @ 50 Hz
1920 × 1080p @ 29.97/30 Hz
1920 × 1080p @ 25 Hz
1920 × 1080p @ 23.98/24 Hz
1920 × 1080i @ 59.94/60 Hz
1920 × 1080i @ 50 Hz
1280 × 720p @ 59.94/60 Hz
1280 × 720p @ 50 Hz
1280 × 720p @ 29.97/30 Hz
1280 × 720p @ 23.98/24 Hz
720 × 480p @ 59.94/60 Hz
720 × 576p @ 50 Hz
640 × 480p @ 59.94/60 Hz
This system incorporates Dolby* Digital and the DTS** Digital Surround
System.
* Manufactured under license from Dolby Laboratories.
System.
* Manufactured under license from Dolby Laboratories.
Dolby, and the double-D symbol are trademarks of Dolby
Laboratories.
Laboratories.
** Manufactured under license under U.S. Patent Nos: 5,956,674;
5,974,380; 6,226,616; 6,487,535; 7,212,872; 7,333,929; 7,392,195;
7,272,567 & other U.S. and worldwide patents issued & pending.
DTS-HD, the Symbol, & DTS-HD and the Symbol together are
registered trademarks of DTS, Inc.
Product includes software. © DTS, Inc. All Rights Reserved.
7,272,567 & other U.S. and worldwide patents issued & pending.
DTS-HD, the Symbol, & DTS-HD and the Symbol together are
registered trademarks of DTS, Inc.
Product includes software. © DTS, Inc. All Rights Reserved.
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.
by Bluetooth SIG, Inc. and any use of such marks by Sony Corporation is
under license.
This system incorporates High-Definition Multimedia Interface (HDMI™)
technology.
The terms HDMI and HDMI High-Definition Multimedia Interface, and the
HDMI Logo are trademarks or registered trademarks of HDMI Licensing
LLC in the United States and other countries.
technology.
The terms HDMI and HDMI High-Definition Multimedia Interface, and the
HDMI Logo are trademarks or registered trademarks of HDMI Licensing
LLC in the United States and other countries.
“BRAVIA” logo is a trademark of Sony Corporation.
“DSEE” is a trademark of Sony Corporation.
“x.v.Color” and “x.v.Color” logo are trademarks of Sony Corporation.
“PlayStation
®
” is a registered trademark of Sony Computer Entertainment
Inc.
The N Mark is a trademark or registered trademark of NFC Forum, Inc. in
the United States and in other countries.
the United States and in other countries.
Android and Google Play are trademarks of Google Inc.
"ClearAudio+" is a trademark of Sony Corporation.
Apple, the Apple logo, iPhone, iPod, 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.
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 specifically to iPod or iPhone,
respectively, and has been certified 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 affect
wireless performance.
accessory has been designed to connect specifically to iPod or iPhone,
respectively, and has been certified 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 affect
wireless performance.
Made for iPod/iPhone models
The compatible iPod/iPhone models are as follows. Update your iPod/
iPhone with the latest software before using with the system.
iPhone with the latest software before using with the system.
BLUETOOTH technology works with:
iPhone
iPhone 5s/iPhone 5c/iPhone 5/iPhone 4s/iPhone 4/iPhone 3GS
iPod touch
iPod touch (5th generation)/iPod touch (4th generation)
iPhone 5s/iPhone 5c/iPhone 5/iPhone 4s/iPhone 4/iPhone 3GS
iPod touch
iPod touch (5th generation)/iPod touch (4th generation)
Other trademarks and trade names are those of their respective owners.
Copyrights
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
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
0 SUR
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.
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.
HT-CT370
3
1.
SERVICING NOTES
.............................................
4
2. DISASSEMBLY
2-1. Disassembly
Flow
........................................................... 7
2-2. Panel
Top
Block
.............................................................. 8
2-3. Loudspeaker (6 cm) (L-ch, R-ch) (SP1, SP2) ................. 9
2-4. DISPLAY Board Block ................................................... 10
2-5. DISPLAY
2-4. DISPLAY Board Block ................................................... 10
2-5. DISPLAY
Board
............................................................. 10
2-6. NFC Module (NFC1) ...................................................... 11
2-7. RF Modulator (RF1) ....................................................... 11
2-8. MAIN Board Block-1 ..................................................... 12
2-9. MAIN Board Block-2 ..................................................... 13
2-10. MAIN Board ................................................................... 13
2-11. Connection Cable with Speaker (L-ch, R-ch)
2-7. RF Modulator (RF1) ....................................................... 11
2-8. MAIN Board Block-1 ..................................................... 12
2-9. MAIN Board Block-2 ..................................................... 13
2-10. MAIN Board ................................................................... 13
2-11. Connection Cable with Speaker (L-ch, R-ch)
(SPC1, SPC2) .................................................................. 14
2-12. Power Cord (AC1) .......................................................... 15
2-13. POWER Board ................................................................ 15
2-14. Bracket (Main) Block ..................................................... 16
2-15. HDMI Board ................................................................... 17
2-16. Bracket (Power) Block .................................................... 17
2-17. Bluetooth Module (BT1) ................................................ 18
2-13. POWER Board ................................................................ 15
2-14. Bracket (Main) Block ..................................................... 16
2-15. HDMI Board ................................................................... 17
2-16. Bracket (Power) Block .................................................... 17
2-17. Bluetooth Module (BT1) ................................................ 18
3.
TEST MODE
............................................................ 19
4. TROUBLESHOOTING
.......................................... 24
5. DIAGRAMS
5-1. Block Diagram - HDMI Section - ................................... 26
5-2. Block Diagram - MAIN Section - ................................... 27
5-3. Block Diagram - AMP Section - ..................................... 28
5-2. Block Diagram - MAIN Section - ................................... 27
5-3. Block Diagram - AMP Section - ..................................... 28
TABLE OF CONTENTS
5-4. Block
Diagram
- PANEL/POWER SUPPLY Section - ............................ 29
5-5. Printed Wiring Board - IO Board - ................................. 31
5-6. Schematic Diagram - IO Board - .................................... 31
5-7. Printed Wiring Board - HDMI Board - ........................... 32
5-8. Schematic Diagram - HDMI Board - .............................. 33
5-9. Printed Wiring Board - MAIN Board (Side A) - ............ 34
5-10. Printed Wiring Board - MAIN Board (Side B) - ............ 35
5-11. Schematic Diagram - MAIN Board (1/6) - ..................... 36
5-12. Schematic Diagram - MAIN Board (2/6) - ..................... 37
5-13. Schematic Diagram - MAIN Board (3/6) - ..................... 38
5-14. Schematic Diagram - MAIN Board (4/6) - ..................... 39
5-15. Schematic Diagram - MAIN Board (5/6) - ..................... 40
5-16. Schematic Diagram - MAIN Board (6/6) - ..................... 41
5-17. Printed Wiring Boards - PANEL Section - ..................... 42
5-18. Schematic Diagram - PANEL Section - .......................... 43
5-19. Printed Wiring Board - POWER Board - ........................ 44
5-20. Schematic Diagram - POWER Board - .......................... 45
5-6. Schematic Diagram - IO Board - .................................... 31
5-7. Printed Wiring Board - HDMI Board - ........................... 32
5-8. Schematic Diagram - HDMI Board - .............................. 33
5-9. Printed Wiring Board - MAIN Board (Side A) - ............ 34
5-10. Printed Wiring Board - MAIN Board (Side B) - ............ 35
5-11. Schematic Diagram - MAIN Board (1/6) - ..................... 36
5-12. Schematic Diagram - MAIN Board (2/6) - ..................... 37
5-13. Schematic Diagram - MAIN Board (3/6) - ..................... 38
5-14. Schematic Diagram - MAIN Board (4/6) - ..................... 39
5-15. Schematic Diagram - MAIN Board (5/6) - ..................... 40
5-16. Schematic Diagram - MAIN Board (6/6) - ..................... 41
5-17. Printed Wiring Boards - PANEL Section - ..................... 42
5-18. Schematic Diagram - PANEL Section - .......................... 43
5-19. Printed Wiring Board - POWER Board - ........................ 44
5-20. Schematic Diagram - POWER Board - .......................... 45
6.
EXPLODED VIEWS
6-1. Overall
Section
............................................................... 58
6-2. Top Panel Section ........................................................... 59
6-3. MAIN Board Section ...................................................... 60
6-4. Bottom Cabinet Section .................................................. 61
6-3. MAIN Board Section ...................................................... 60
6-4. Bottom Cabinet Section .................................................. 61
7.
ELECTRICAL PARTS LIST
.............................. 62
Accessories are given in the last of the electrical parts list.
HT-CT370
4
SECTION 1
SERVICING NOTES
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
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
• 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.
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
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 fl ow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
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.
also be added to ordinary solder.
ADVANCE PREPARATION WHEN CONFIRMING OP-
ERATION
All of the units included in the HT-CT370 (SA-CT370/SA-WCT370)
are required to confi rming operation of SA-CT370. Check in ad-
vance that you have all of the units.
ERATION
All of the units included in the HT-CT370 (SA-CT370/SA-WCT370)
are required to confi rming operation of SA-CT370. Check in ad-
vance that you have all of the units.
NOTE OF PERFORMING THE OPERATION CHECK IN
THE STATE THAT HEAT SINK WAS REMOVED
When performing the operation check in the state that this unit was
disassembled, it is possible to perform the operation check in the
state that heat sink was removed. But don’t perform the operation
check in the long time, and perform the operation check in the
volume state as low as possible.
THE STATE THAT HEAT SINK WAS REMOVED
When performing the operation check in the state that this unit was
disassembled, it is possible to perform the operation check in the
state that heat sink was removed. But don’t perform the operation
check in the long time, and perform the operation check in the
volume state as low as possible.
NOTE OF REPLACING THE PARTS ON THE HDMI BOARD
Except US and Canadian models of this unit, each parts for Ref.
No. CN3000/3001/3002/3006 and Ref. No. RB3000/3001 is using
two kinds of parts, and there is a combination.
When replacing these parts, it is necessary to replace it for parts
same as parts before replacing.
Replace the parts after distinguishing the type of parts referring to
the following.
Except US and Canadian models of this unit, each parts for Ref.
No. CN3000/3001/3002/3006 and Ref. No. RB3000/3001 is using
two kinds of parts, and there is a combination.
When replacing these parts, it is necessary to replace it for parts
same as parts before replacing.
Replace the parts after distinguishing the type of parts referring to
the following.
Type
A
B
Distinguishing
Method
Method
The terminals
cannot be seen.
cannot be seen.
CN3000
CN3001
CN3002
CN3006
CN3001
CN3002
CN3006
The terminals
can be seen.
can be seen.
CN3000
CN3001
CN3002
CN3006
CN3001
CN3002
CN3006
CN3000/3001/
3002/3006
3002/3006
Part No.
1-843-486-21
1-843-486-21
Part No.
1-821-398-41
1-821-398-41
RB3000/3001
Part No.
1-457-539-11
1-457-539-11
Part No.
1-234-400-21
1-234-400-21
NOTE OF REPLACING THE IC3009 ON THE HDMI
BOARD
IC3009 on the HDMI board cannot replace with single. When this
part is damaged, replace the complete mounted board.
BOARD
IC3009 on the HDMI board cannot replace with single. When this
part is damaged, replace the complete mounted board.
NOTE OF REPLACING THE IC1009, IC1010 AND IC1012
ON THE MAIN BOARD
IC1009, IC1010 and IC1012 on the MAIN board cannot replace
with single. When these parts are damaged, replace the complete
mounted board.
ON THE MAIN BOARD
IC1009, IC1010 and IC1012 on the MAIN board cannot replace
with single. When these parts are damaged, replace the complete
mounted board.
“PRTECT (PROTECT)” APPEARS ON THE DISPLAY OF
THE BAR SPEAKER
THE BAR SPEAKER
q Press the ÒÄÆ (on/standby) button to turn off the system. After the
indicator disappears, disconnect the AC power cord (mains lead)
then check that nothing is blocking the ventilation holes of the
system.
then check that nothing is blocking the ventilation holes of the
system.
NOTE OF REPLACING THE IC3001 ON THE MAIN
BOARD AND THE COMPLETE MAIN BOARD
When IC3001 on the MAIN board and the complete MAIN board
are replaced, it is necessary to spread the compound between the
MAIN board and the heat sink.
Spread the compound (THERMAL COMPOUND (G747)) refer-
ring to the fi gure below.
BOARD AND THE COMPLETE MAIN BOARD
When IC3001 on the MAIN board and the complete MAIN board
are replaced, it is necessary to spread the compound between the
MAIN board and the heat sink.
Spread the compound (THERMAL COMPOUND (G747)) refer-
ring to the fi gure below.
– MAIN Board (Side B) –
thermal compound (G747)
IC3001
CAPACITOR ELECTRICAL DISCHARGE PROCESSING
When checking the board, for the electric shock prevention, con-
nect the resistors to both ends of respective capacitor (C914 or
C915) to discharge the capacitor (C914 or C915).
When checking the board, for the electric shock prevention, con-
nect the resistors to both ends of respective capacitor (C914 or
C915) to discharge the capacitor (C914 or C915).
– POWER Board (Conductor Side) –
(US and Canadian models)
(US and Canadian models)
– POWER Board (Conductor Side) –
(Except US and Canadian models)
(Except US and Canadian models)
C914
800
:/2 W
C915
800
:/2 W
Ver. 1.2