Sven HOO-1R Service Manual

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CHANNECS HOME-THEATER CINEMA

CONTENTS

1. Safety precautions . 2
2. Specifications . 3
4. Connecting to equipment . 4
5. Trouble shooting guide .5
6. Connecting guide 6/8
7. Ic voltage chart iv )/22
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1. SAFETY PRECAUTIONS

PRECAUTIONS:

  • 1. Power supply: This speaker can only use the type of power supply as specified in the instruction manual or marked on the master speaker.
  • 2.Power line protection: Make sure to avoid power line being trampled, pulled or squeezed by heavy objects. In particular, be sure to hold the plug when pulling the power line from the socket. Never pull on the power line. besides, keep the power line away from hot objects.

6. Removing cabinet: In case of speaker failure or problems due to improper use, don't dismantle the unit to repair or check by yourself. Please turn off the power and use after checked by specialists to avoid causing personal accident.

  • 3.Cord polarity: The speaker cord must be correctly connected as per marking on the function panel."+" and "-" Must have correct polarity so maximize the inherent quality of the speaker. Otherwise, normal function and output will be affected.
  • 4. Ventilation: This speaker has good adaptability to the environment, but pay attention to the environmental ventilation during long periods of work.
  • 5. Water and moisture: Keep the sound box 8. away from rain, water spray, water splash and wet environment, such as bath, kitchen, water basin, washing basin, damp basement, swimming pool, etc.

7. Appearance cleaning: Don't use volatile solutions to clean the speaker to avoid damaging the appearance.

8. Please cut off the power: If you don't use the sound system for a long time, please remove the cable wire or disconnect the power to ensure the speaker safety and household safety.

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2. SPECIFICATIONS

TECHNICALSPECIFICATION:

OUTPUT POWER SUB-WOOFER
FRONT
CENTER
SURROUND
SUB WOOFER IMPEDANCE
FRONT/CENTER/SURROUND····································
SEPARATION······· ≥40dB
S/N RATIO≥80dB
DIMENSION
SUB WOOFER······· L200*W320*H400mm
FRONTL168*W220*H155mm
CENTER L400*W150*H140mm
SURROUND
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4. CONNECTING TO EQUIPMENT

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5. TROUBLE SHOOTING GUIDE

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INTEGRATED CIRCUITS

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Product specification

HEF4053B

MSI

Triple 2-channel analogue multiplexer/demultiplexer

DESCRIPTION

The HEF4053B is a triple 2-channel analogue multiplexer/demultiplexer with a common enable input (Ē). Each multiplexer/demultiplexer has two independent inputs/outputs (YO and Y1), a common input/output (Z), and select inputs (SO). Each also contains two-bidirectional analogue switches, each with one side connected to an independent input/output (YO and Y1) and the other side connected to a common input/output (Z).

With E LOW, one of the two switches is selected (low impedance ON-state) by SD. With E HIGH, all switches are in the high impedance OFF-state, independent of SA to SD.

VDD and VSS are the supply voltage connections for the digital control inputs (SA to SC and E). The VDD to VSS range is 3 to 15 V. The analogue inputs/outputs (YO, Y1 and Z) can swing between VDD as a positive limit and VEE as a negative limit. VDD-VEE may not exceed 15 V.

For operation as a digital multiplexer/demultiplexer, VEE is connected to VSS (typically ground).

FAMILY DATA, IDD LIMITS category MSI

See Family Specifications

January 1995

Page 11

Philips Semiconductors

Product specification

HEE4053B MSI

Triple 2-channel analogue

multiplexer/demultiplexer

Fig.2 Pinning diagram.

HEF4053BP(N): 16-lead DIL; plastic
(SOT38-1)
HEF4053BD(F): 16-lead DIL; ceramic (cerdip)
(SOT 74)
HEF4053BT(D): 16-lead SO; plastic
(SOT109-1)
(): Package Desi gnator North America

Y DA to Y DC independent inputs/outputs
Y1A to Y1C independent inputs/outputs
S A to S C select inputs
Ē enable input (active LOW)
Z A to Z C common inputs/outputs
INPUTS CHANNEL
Ē Sn O
L L Y on -Z n
L н Y 1n -Zn
н Х none

-18 to + 0.5 V

lotes

1. H = HIGH state (the more positive voltage) L = LOVV state (the less positive voltage)

  • X = state is immaterial

RATIEGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Supply voltage (with reference to Von) VEE

Supply voltage (with reference to VDD)

lote

1. To avoid drawing VDD current out of terminal Z, when switch current flows into terminals Y, the voltage drop across the bidirectional switch must not exceed 0,4 V. If the switch current flows into terminal Z, no VDD current will flow out of terminals Y, in this case there is no limit for the voltage drop across the switch, but the voltages at Y and Z may not exceed VDD or VEE.

January 1995

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February 1999

M1875 20W Audlo Power Amplifie

LM1875 20W Audio Power Amplifier

General Description

The LM 1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications.

The LM1875 delivers 20 watts into a 40 or 80 load on ±25V supplies. Using an 80 load and ±20V supplies, over 30 watts of power may be delivered. The amplifier is designed to operate with a minimum of external components. Device overload protection consists of both internal current limit and thermal shutdown.

The LM 1875 design takes advantage of advanced drout techniques and processing to achieve extremely low distortion levels even at high output power levels. Other outstanding features induce high gain, fast slew rate and a wide power bandwidth, large output voltage swing, high current capability, and a very wide supply range. The amplifier is internally compensated and stable for gains of 10 or greater.

Features

  • Up to 30 watts output power
  • Avo typically 90 dB
  • Low distortion 0.015%, 1 kHz, 20 W
  • Wide power bandwidth: 70 kHz
  • Protection for AC and DC short directs to ground
  • Thermal protection with pardle circuit
  • High current capability, 4A
  • Wide supply range 16V-60V
  • Internal output protection diodes
  • 94 dB ripple rejection
  • Plastic power package TO-220
Applications

  • High performance audio systems
  • Bridge amplifers
  • Stereo phonographs
  • Servoamplifers
  • Instrument systems

Typical Applications

Front Mew

Package Ordering info NSC Package
Number
For Straight Leads LM 1875T
8L103949
TO5A
For Stagger Bend LM 18751
LBO3
TOSD
For 90° Stagger Bend LM 18751
LB05
TOBE
For 90° Stagger Bend LM 1875T
LB02
T AOBB

© 1999 National Semiconductor Corporation D3005030

www.maticmal.com

Page 13
Absolute Maximum n Ratings (Note 1) Lead Temperature
Supply Voltage 60V (Eid dering, 10 seconds) 260°C
Input Voltage oc#
AL#
73°C
Jurdion Temperature -050 LD + 1600
150°C

Electrical Characteristics

Vcc=+25V, -Vec=-25V, TAMBIENT=25°C, RL=8Ω, AV=20 (28 dB), f0=1 kHz, unless atherwise specified.

Parameter Conditions Typical Tested Limits Unite
Supply Current Pour=O/V 70 100 mA
Output Power (Note 2) THD=1% 25 W
THD (Nate 2) Pour=20W, f₀=1 kHz 0.015 %
Pour =20W, f₀=20 kHz 0.05 O.4 %
Pour=20VV, RL=4Q, fo=1 kHz 0.022 %
Pour =20W, RL =4Ω, f₀ =20 kHz 0.07 O.6 %
Offset Voltage ± 1 ± 15
Input Bias Current ± 0.2 ±2 μA
Input Offset Current 0 ± 0.5 μA
Gain-Bandwidth Product f₀=20 kHz 55 MHz
0 pen Loop Gain DC 90 dB
PSRR V cc , 1 kHz, 1 Vrms 95 62 dB
V EE , 1 kHz, 1 Vrms 83 52 dB
MaxBlewRate 20W, 8Q, 70 kHz BW 8 V/µs
Current Limit Vour = Vsupply -10V 4 з Α
Equivalent Input Noise Voltage R s =6000, CCIR з µ\rms

bete 1: "Absolute Maximum Ratings" indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits.

βlote 2 . Assumes the use of a heat sink having a thermal resistance of 1°CAV and no insulator with an ambient temperature of 25°C. Because the output limiting directivity has a negative temperature coefficient, the maximum output power delivered to a 4Ω load may be slightly reduced when the tab temperature exceeds 55°C.

Typical Applications

Typical Single Supply Operation

www.mational.com

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UTC2030A

LINEAR INTEGRATED CIRCUIT

18W Hi-Fi AMPLIFIER AND 35W DRIVER

DESCRIPTION

The UTC2030A is a monolithic IC in Pentawatt package intended for use as low frequency class AB amplifier.

With Vsmax=44V it is particularly suited for more reliable applications withou regulated supply and for 35W driver circuits using lowcost complementary pairs.

The UTC2030A provides high output current and has very low harmonic and cross-over distortion.

Further the device incorporates a short circuit protection system somprising an arrangement for automatically limiting the dissipated power to as to keep the working point of the output transistors within their safe operating area. A conventional thermal system is also included.

то-220в

ABSOLUTE MAXIMUM RATINGS(Ta=25°C)

CHARACTERISTICS SYMBOL VALUE UNITS
SupplyVoltage √s ±22 V
Input/Voltage Vi √s V
Differential input voltage Vdi ±15 V
Peak output current(internally limited) lo 3.5 А
Total power dissipation at Tcase=90°C Ptot 20 W
Storage temperature Tstg -40~+150 °C
junction temperature Ţj -40~+150 °C

TYPICAL APPLICATION

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UTC2030A

LINEAR INTEGRATED CIRCUIT

PIN CONNECTION

  • 1 Non inverting input
  • 2 Inverting input
  • 3 -Vs
  • 4 Output
  • 5 +Vs
-/
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Supply\/oltage Vs ±6 ±22 V
Quiescent drain ld 50 80 mA
current
Input bias current dl 0.2 2 μA
Input offset voltage Vos √s=±22v ±2 ±20 mł√
Input offset current los ±20 ±200 nA
d=0.5%,Gv=26dB
f=40 to 5kHz
Output power Po R∟=6Ω 15 18 w
R∟=4Ω 10 12 w
V s= ±19V,R∟=4Ω 13 16 W
Power bandwidth BVV Po=15W(R∟=4Ω 100 kHz
Slewrate SR 8 V/µsec
Open loop voltage
gain
Gvo f=1kHz 80 dB
Closedloop
voltage gain
Gvc 25.5 26 26.5 dB
Total Harmonic
distortion
d Po=0.1 to 14₩V,R∟=4Ω
f=40 to 15kHz
0.08 %
Po=0.1 to 14₩V,R∟=4Ω
f=1kHz
0.03 %
Total Harmonic
distortion
d Po=0.1 to 9VV,R∟=6Ω
f=40 to 15kHz
0.05 %
Second order CCIF
intermodulation
distortion
d2 Po=4\A¦R∟=4Ω
f2-f1=1kHz
0.03 %
Third order CCIF
intermodulation
distortion
d3 f2=14KHz,
f1=15kHz
0.08 %
Input noise voltage B=curve A 2 μλ/
Input noise current B= 22Hz to 22kHz 3 10 μλ/
R∟=4Ω,Rg=10kΩ,B=α.rve A
Signi to Nois rtio S/N Po=15VV 106 dB
Po=1W 94 dB

ELECTRICAL CHARACTERISTICS(Refer to the test circuit, Vs=±16/, Ta=25°C)

YW YOUWANG ELECTRONICS CO HTD

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UTC2030A

LINEAR INTEGRATED C RCUIF

(continued)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Input open loop,f=1kHz 0.5 5
Resistance(pin 1)
Supply\/oltage R∟=4Ω, Gv=26dB 54 dB
rejection Rg=22Ω,f=1kHz
Thermal Shut-down 145 °C
junction
temperature

TEST CIRCUITS

YW YOUWANG ELECTRONICS CO LTD

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UTC4558

LNEAR NTEGRATED C RCUIT

DUAL OPERATIONAL AMPLIFIER

DESCRIPTION The UTC 4558 is a monolithic integrate dicircuit designe drior dual operational amplifier.

FEATURES No frequency compensation required. No latch-up "Large common mode and differential voltage range "Parameter tracking overtemperature range "Gain and phase match between amplifiers "Internally frequency compensated "Lowmoise input transferors

ABSOLUTE MAXIMUM RATINGS

Characteristic Symbol Value Dhnit
Supply Voltage Vec 422 ٧
Differential input voltage V(DPP) ±18 ٧
Power Dissipation Po 1
E
E
mW
Input Voltage Vi ±15 ٧
Operating Temperature Танк 0-470 ĉ
Storage Temperature Tara -65-+150 ĉ

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UTC455B

LNEAR NTEGRATED C RCUIT

ELECTRICAL CHARACTE
Cha racte ristic Symbol Test Condition Min Typ. Max Umit
SupplyCurrent 100 3.5 5.6
Input offset voltage ٧n R≉<10kΩ 2 6
Input offset current l n 5 200 nA -
input bias current I BRS 30 500 nA -
Large signal voltage gain GV Vo(p-p)≓10V,Rt<2kΩ 20 200 ٧/mV
Common Mode input Voltage
Bapoe
Viro ±12 ±13 ۷
Commercial Mode Date atten Date 0.00 20 00 40
Common Mode Pelection Pago CILINE F$<10kΩ 70 an a
Supply Voltage Rejection Patio PSRR R≉<10kΩ 76 - 90 dB
O utput Voltage swing Vo(p-p) Rt>10kΩ ±12 ±11 ۷
Power Comsumption Pc 70 170
Slew Rate SR M=10V,Rt>2kΩ,Ct<100pF 1.2 Viμ¢
Fize Time TRB VI=20m V,RL≫2kΩ,Ci<1000 pF 0.3 μø
Overshoot 08 V⊫20mV,Rt≫2kΩ,Ct<100pF 15 96

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6-Channel Electronic Volume Controller IC Preliminary PT2258

DESCRIPTION

PT2258 is a 6-Channel Electronic Volume Controller IC utilizing CMOS Technology specially designed for the new generation of AV Multi-Channel Audio System. PT2258 provides an I2C Control Interface, an attenuation range of 0 to -79 dB at 1 dB/step, low noise, high channel separation. Housed in 20-pin, DIP or SO Package, PT2258's pin assignments and application circuit are optimized for easy PCB Layout and cost saving advantages.

FEATURES

  • CMOS Technology
  • Low Power Consumption
  • Least External Components
  • Attenuation Range: 0 to -79 dB at 1dB/step
  • Operating Voltage: 5 to 9 V
  • Low Noise, S/N Ratio>100dB (A-weighting)
  • High Channel Separation
  • I2C Bus Control Interface
  • Selectable Address
  • 6-Channel Outputs
  • Available in 20-pin, DIP or SO Package

APPLICATIONS

  • AV Surround Audio Equipment
  • Car Audio
  • Mini Compo
  • Computer Multi-Media Speaker
  • Other Audio Equipments

PT2258 pre1.0

Updated July 2000

Page 20

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Infrared Remote Control Transmitter

PT2221/2

BLOCK DIAGRAM

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6-Channel Electronic Volume Controller IC Preliminary PT2258

PIN DESCRIPTION

Pin Name I/O Description Pin No
IN1 I Channel Input No. 1. 1
Connect a Capacitor to Audio Source
IN2 Ι Channel Input No. 2 2
Connect a Capacitor to Audio Source
IN3 Ι Channel Input No. 3
Connect a Capacitor to Audio Source
CODE2 - Refer to Address Code Section 4
DGND - Digital Ground 5
SCL Ι I 2 C Clock Input
SDA Ι I 2 C Data Input
IN4 4 I Channel Input No. 4 8
Connect a Capacitor to Audio Source
IN5 Ι Channel Input No. 5 9
Connect a Capacitor to Audio Source
IN6 I Channel Input No. 6 10
Connect a Capacitor to Audio Source
OUT6 JT6 O Channel Output No. 6 11
Connect a Capacitor to the Next Stage
OUT5 O Channel Output No. 5 12
Connect a Capacitor to the Next Stage
OUT4 0 Channel Output No. 4 13
Connect a Capacitor to the Next Stage
GND - Ground 14
REF REF - Reference Voltage= 1/2 Vcc 15
Connect a Capacitor to the Ground
VCC - Power Supply Input 16
CODE1 - Refer to the Address Code Section 17
OUT3 OUT3 O Channel Output No. 3
Connect a Capacitor to the Next Stage
18
OUT2 Γ2 O Channel Output No. 2 19
Connect a Capacitor to the Next Stage
OUT1 0 Channel Output No. 1 20
Connect a Capacitor to the Next Stage

PT2258 pre1.0

Updated July 2000

Page 22

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Infrared Remote Control Transmitter

PT2221/2

DESCRIPTION

The PT2221 and PT2222 are remote control transmitters utilizing CMOS Technology specially designed for use on infrared remote control applications. They are pin-to-pin compatible with NEC µPD6121 and µPD6122 respectively. PT2221 is packaged in 20 pins SO and capable of controlling 32 functions and 3 double keys. PT2222, on the other hand, is housed in 24 pins SO and capable of controlling 64 function keys and 3 double keys. PT2221/2 may be paired with PT2225 to construct a powerful remote control system.

FEATURES

  • CMOS Technology
  • □ Low Power Consumption (VDD=2.0 ~ 5.5V)
  • Pin-to-Pin Compatible with µPD6121/µPD6122
  • Using SEL pin, PT2221 can support 64+6 function codes
  • Using SEL pin, PT2222 can support 128 + 6 function codes
  • Customer Code can be selected (please contact PTC for details)

APPLICATIONS

  • D Audio Equipment
  • □ Television (TV)
  • Cable TV Tuner
  • I Video Cassette Recorder (VCR)
  • Cassette Deck
  • Air Conditioner
  • □ Video Compact Disk (VCD)
  • DVD ROM/Player
  • D Moniputer / Multi-Media Personal Computer System
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Infrared Remote Control Transmitter

PT2221/2

PIN DESCRIPTION

Pin Name 1/0 Description Pin Number
20 Pins 24 Pins
Vss - Power Supply 10 12
KI o ~ KI 3 Ι Key Input Pin Nos. 0 ~ 3 1 ~ 4 23, 24, 1, 2
KI4 ~ KI7 Ι Key Input Pin Nos. 4 ~ 7 - 3 ~ 6
REM 0 Data Output Pin 5 7
V DD - Power Supply 6 8
SEL Ι Select Pin 7 9
OSCO 0 Oscillator Pin 8 10
OSCI Ι Oscillator Pin 9 11
CCS Ι Custom Code Scan Input Pin 20 22
LMP - Output LED Indicator 11 13
KI/O 0 ~ KI/O 7 1/0 Key Input/Output Pin Nos. 0 ~ 7 19 ~ 12 21 ~ 14

Functional Description

Transmission Code

The transmission code consists of a leader code, 16-bits custom codes, and 8- bits data codes. The inverse code of the data code is also sent simultaneously. The following diagram shows this one frame construction.

The leader codes consist of a 9 ms carrier waveform followed by a 4.5 ms OFF waveform. It is used as the leader for the following code. Thus, when reception is configured by a microcomputer, the time relationship between the reception detection and other processes can be managed efficiently. The code uses the PPM (Pulse Position Modulation) Method, with "1" and "0" differentiated by the time between pulses. Each code consists of 8 bits, and simultaneous transmission of the inverse code allows configuration of a system with an extremely low error rate.

Revised Sept. 1998

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