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I. Safety instructions

When using electric products, basic precautions should always
be followed, including the following:

1. Read Instructions –

 All the safety and operating instructions

should be read before the appliance is operated.

2. Retain Instructions –

 The safety and operating instructions

should be retained for future reference.

3. Heed Warnings –

 Adhere to all warnings on the appliance

and in the operating instructions.

4. Follow Instructions –

 All operating and use instructions

should be followed.

5. Water and Moisture –

 The appliance should not be used near

water-for example, near a bathtub, wash-bowl, kitchen  sink,
laundry tub, in a wet basement, or near a swimming pool, etc.

6. Carts and Stands –

 The appliance should be used only with

a cart or stand that is recommended by the
manufacturer. An appliance and cart
combination should be moved with
care. Quick stops, excessive force,
and uneven surfaces may cause the
appliance and cart combination to
overturn.

7. Wall or Ceiling Mounting –

 The appliance should be mounted

to a wall or ceiling only as recommended by the manufacturer.

8. Ventilation –

 The appliance should be situated so that its lo

cation or position does not interfere with its proper ventilation.
For example, the appliance should not be situated on a bed,
sofa, rug or similar surface that may block the ventilation open-
ings; or placed in a built-in installation, such as a bookcase or
cabinet that may impede the flow of air through the ventilation
openings.

9. Heat –

 The appliance should be situated away from heat

sources such as radiators, heat registers, stoves, or other ap
pliance (including amplifier) which produce heat.

10. Nonuse Periods –

 The power cord of the appliance should

be unplugged from the outlet when left unused for a long pe
riod of time.

11. Power Sources –

 The appliance should be connected to

a power supply only of the type described in the operating
instructions or as marked on the appliance.

12. Power Lines –

 An outdoor antenna should be located away

from power lines.

13. Power Cord Protection –

 Power-supply cords should be

routed so that they are not likely to be walked on or pinched
by items placed upon or against them, paying particular atten-
tion to cords, at plugs, convenience receptacles, and the point
where they exit from the appliance.

14. Power requirements for multi voltage (not for all mod

els) –

 Before connecting the power cord, make sure that the

voltage selector on the rear panel is set to the correct voltage
for you area. If not, please set it correctly.

15. Load –

 For protecting the appliance from being damaged, rated

load while is printed on the appliance or is explained in opera-
tion instruction, that should be connected to the speaker out-
put of the appliance. Never short circuit the speaker output of
the appliance when the appliance is working.

16. Object and Liquid Entry –

 Care should be taken so that

objects do not fall and liquids are not spilled into the enclosure
through openings.

17. Cleaning –

 Unplug the appliance from the wall outlet before

cleaning. Do not use liquid cleaners or aerosol cleaner. Use a
damp cloth for cleaning.

18. Make your contribution to protect the environment –

Used batteries with the ISO symbol for recycling as well as
small accumulators (rechargeable batteries),
mini-batteries (cells) and starter
batteries should not be thrown into
the garbage can. Please leave them
at an appropriate depot.

Portable cart warning

19. Overloading –

 Do not overload wall outlets and extension

cords as this can result in a risk of fire or electric shock.

20. Damage Requiring Service –

 Unplug this appliance from the

wall outlet and refer servicing to qualified service personnel
under the following conditions:
a). The power-supply cord or the plug has been damaged;
b). Objects have been fallen, or liquid has been spilled into

the appliance;

c). The appliance has been exposed to rain;
d). The appliance does not appear to operate normally or ex-

hibits a marked change in performance;

e). The appliance has been dropped, or the enclosure dam

aged.

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO

NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

CAUTION

TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT

REMOVE COVER (OR BACK). NO USER SERVICEABLE

PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE

PERSONNEL.

The lightning flash with arrowhead symbol,
within an equilateral triangle, is intended to
alert the user to the presence of uninsulated
“dangerous voltage” within the product’s
enclosure; that may be of sufficient magnitude
to constitute a risk of electric shock to persons.

The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.

CLASS 1 LASER PRODUCT

This product contains a low power laser device. To ensure

continued safety, do not remove any covers or attempt to gain

access to the inside of the product. Refer any servicing to qualified

personnel.

A. CLASSIFICATION LABEL, PLACED ON EXTERIOR SURFACE

B. WARNING LABEL, PLACED INSIDE THE UNIT

   RISK OF ELECTRIC SHOCK

    DO NOT OPEN

CAUTION

CLASS

1 LASER PRODUCT

KLASSE

1 LASER PRODUKT

LUOKAN 1 LASER LAITE
KLASS

1 LASER APPARAT

All manuals and user guides at all-guides.com

Содержание QX-3700

Страница 1: ...SERVICE MANUAL Model QX 3700 MINI HI FI MICRO COMPONENT SYSTEM www akai ru All manuals and user guides at all guides com a l l g u i d e s c o m ...

Страница 2: ...OUDNESS PHONES REMOTE FUNCTION UP R DOWN L Hi Fi MICRO COMPONENT SYSTEM VOLUME QX 3700 QX 3700 QX 3700 QX 3700 QX 3700 Mini Hi Fi Micro Component System SERVICE MANUAL All manuals and user guides at all guides com ...

Страница 3: ...the constant improvement of product Contents I Safety instructions 2 II Specifications 3 III Level List of Equipments Instruments Required for Production 6 IV Block diagram 7 V Wiring diagram 8 VI Schematic Diagram 9 VII Component Diagrams 10 VIII Exploded Diagram View and Parts List 18 All manuals and user guides at all guides com ...

Страница 4: ...or protecting the appliance from being damaged rated load while is printed on the appliance or is explained in opera tion instruction that should be connected to the speaker out put of the appliance Never short circuit the speaker output of the appliance when the appliance is working 16 Object and Liquid Entry Care should be taken so that objects do not fall and liquids are not spilled into the en...

Страница 5: ...AS IHF T 200 b EXCEPT AS OTHERWISE SPECIFIED HEREIN ALL TESTS SHALL BE MEASURED AT FRONT CHANNELS AND SET THE SELECTOR POSITION c MODULATION OF FM DODE 75KHz DEVIATION AUDIO 1KHz 75 OHM d MODULATION OF FM STEREO MPX 67 5KHz DEVIATION 7 5KHz PILOT AUDIO 1 KHz e MODULATION OF MW 30 MOD AUDIO 1KHz f REF OUTPUT LINE OUT Specifications 1 FM Section FM Electrical Specifications Text Point at Line Out Me...

Страница 6: ...vel ratio of modulation OFF to ON AUTO STOP 20mV M Center Adjust Minimum input level of Auto Stop SENSITIVITY Auto Stop Sensitivity threshold 5 0mV M OUTPUT LEVEL 150 500MVrms Center 10mV M Measure both channel test point at Line Out 3 VCD Section VCD Measurement Condition Measurement Point At line out or video out 1 Electrical Specifications No Test Item Unit Specification 1 Video Output Level Vp...

Страница 7: ...req Level Level Power Output 15 3W SP out Line 1kHz Adjust Adjust MAX Both channel drive front THD 2 4 load Distortion Less than 2 SP out Line 1kHz Adjust 12W MAX Both channel drive 4 load read best value when indicator of distortion meter is changing Line Input 200 50mV SP out Line 1kHz Adjust Adjust MAX Sensitivity THD 2 S N 65dB SP out Line 4 7k 5W MAX Terminate Channel more than 30dB SP out Li...

Страница 8: ... 7 0 dB 3 0dB NO Designation Requirement Reference Model Remark 1 Standard signal EXT MOD Input LEADER 3216 1 set Generator Modulation AM 0 60 FM 0 99 9KHz Frequency 0 1 140MHz Level 20 120dBu Output 1 50W 2 AC voltmeter Inter Resistance 1M 10MW KENWOOD V7 171 2 set 3 Automatic VP7702C 1 set Distortion Meter 4 CD Player NF3346A 1 set Evaluation Filter 5 Multiplex Signal KIKU SUI 3400S 1 set Genera...

Страница 9: ...VFD 5V DG REM TU SW STB CLK DI DO PT16311 SW VOL VOL MUTE STAN MENU AG 12V DATA AUX L R TUNER T 933 2 FM AM L G R TUN CE DI DO CLK VCD MEPEG DECODER L G R V G DO STB CLK DG REM 8V DG 5V VIDEO OUT V2 V1 AUDIO OUT PT2314 SYSTEM CONNECTION 78E54 L R DO DI CLK CE 22V 22V 21V F1 F2 0V MUTE LEVEL STAN MENU AC10V AC17V 0V AC17V AC3V5 AC3V5 0V AC17V AC220V AC220V AC12V AC12V AC10V IV Block diagram 7 All m...

Страница 10: ...V Wiring diagram 8 All manuals and user guides at all guides com ...

Страница 11: ...7 R100 22K R3 22K C104 330P R104 24K W104 P104 C105 330P R105 24K R102 1K R103 1K C102 47u C103 47u P503 W503 R512 4K7X8 R513 4K7X8 VD500 IN4148 C503 10U C506 104 R509 22K V503 C9014 V502 C9014 R564 22K R560 33K N502A JRC4558 N502B JRC4558 R561 22K N400B JRC4558 B N400A JRC4558 A R220 150 K202 R222 18 R210 100 R205 100 K200 R209 100 K201 R204 100 V201 C9014 V202 C9014 V200 C9014 R206 33K C205 104 ...

Страница 12: ...VII Component Diagrams i AMP PCB Component Diagram 10 All manuals and user guides at all guides com ...

Страница 13: ...ii AMP CONTROL PCB Component Diagram 11 All manuals and user guides at all guides com ...

Страница 14: ...iii AMP OUTPUT PCB Component Diagram 12 All manuals and user guides at all guides com ...

Страница 15: ... 13 iv CONNECTIVE PCB Component Diagram All manuals and user guides at all guides com ...

Страница 16: ...v CPU CONTROL PCB Component Diagram 14 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Страница 17: ... 15 vi VCD CONTROL PCB Component Diagram All manuals and user guides at all guides com ...

Страница 18: ... 16 vii AUDIO VIDEO OUTPUT PCB Component Diagram All manuals and user guides at all guides com ...

Страница 19: ... 17 viii REMOTE HANDSET PCB Component Diagram All manuals and user guides at all guides com ...

Страница 20: ... 18 VIII Exploded Diagram View and Parts List A VCD exploded All manuals and user guides at all guides com ...

Страница 21: ... 322 AA0801 01 SPOG SPR 6 12 E7801 013007 OUTPUT PCB ASSY 1 13 402 AA0903 05 REAR COVER 1 14 E7801 013009 TUNER PCB ASSY 1 15 E7801 013008 MPEG PCB ASSY 1 16 530 V58001 01 FIBER PAPER WASHER 4 17 401 AA0902 01 TOP CABINET 1 18 429 AA0901 01 BRACKET FOR PCB 2 19 E7801 013005 CPU PCB ASSY 1 20 239 AA0901 07S CD DOOR 1 21 E7706 003001 MECHANISM VCD 1 A 610 200108 10 S TAP SCREW RND 2x8 1 B 610 300108...

Страница 22: ... 20 B AMP exploded All manuals and user guides at all guides com ...

Страница 23: ... 1 13 367 V58801 01 BSHG RELIEF 1 14 236 AA0811 22S CABINET BACK 1 15 E3404 136001 AC LINE CORD 1 16 384 K58001 02H BACK PLATE 1 17 E7801 013004 CONNECTIVE PCB 1 18 403 AA0803 01 CABINET BOTTOM 1 19 370 AA0802 01 FOOT CSH REAR 2 20 E5102 151001 TRANSFORMER 1 21 269 AA0821 01K LENS RCN FLTR 1 22 370 AA0801 01 FOOT CSH 2 23 401 AA0803 01 CABINET TOP 1 24 389 AA0802 01H PLT SHD PCB 1 A 611 300208 10 ...

Страница 24: ...P C B REMOTE BOARD 1 5 473 010101 01 BATT CONTACT SPRING SHEET VE 1 6 472 010101 01 BATT CONTACT PLATE VE 1 7 203 010131 03S REMOTE CABINET BOTTOM 1 8 611 260206 10 SELF TAPPING SCREW K T 2 6x6mm 1 9 474 010101 01 BATT CONTACT SPRING WIRE 1 10 210 010101 03S REMOTE BATTERY COVER VE 1 11 790 010110 11 REMOTE CONTROL HANDSET 43 KEYS 1 11 All manuals and user guides at all guides com ...

Страница 25: ...W 5 8 R205 R209 R210 R219 R221 R408 R409 R220 RESISTOR CARBON 150 1 4W 5 1 R214 RESISTOR CARBON 180 1 4W 5 5 R215 R216 R217 R218 R208 RESISTOR CARBON 220 1 4W 5 1 R201 RESISTOR CARBON 560 1 4W 5 2 R203 R200 RESISTOR CARBON 680 1 4W 5 2 R202 R207 RESISTOR CARBON 1K 1 4W 5 3 R405 R406 R404 RESISTOR CARBON 3K3 1 4W 5 2 R407 R400 RESISTOR CARBON 4K7 1 4W 5 2 R402 R212 RESISTOR CARBON 10K 1 4W 5 3 R213...

Страница 26: ... 2uF 50V 20 2 C719 C300 CAP H VOLTAGE MKP 0 15K 275V 20 1 iii DIODE TRANSISTOR Location Description QTY VD111 DIODE IN4148 9 VD206 VD207 VD403 VD500 VD600 VD601 VD602 VD603 VD110 DIODE IN4001 2 VD300 VD100 DIODE IN4007 13 VD101 VD102 VD103 VD104 VD105 VD106 VD107 VD108 VD109 VD114 VD115 VD400 VD200 DIODE LED F3 YELLOW 3 VD202 VD204 VD201 DIODE LED F3 GREEN 3 VD203 VD205 VD402 DIODE ZENER 5V1 0 5W ...

Страница 27: ... 7 1PCS XS300 JACK SPK WP4 15 1PCS P202 JACK HEADPHONE 7PIN 1PCS RL100 RELAY YL 202 DC12V 1PCS RL300 F100 FUSE F3 15A 250V 1PCS F101 F300 FUSE T4A 250V 1PCS F100 FUSE HOLD 2PAIR F101 F300 FUSE HOLD 1PCS P300 AC LINE CORD 1 8M 1PCS K200 SWITCH TACT 6x6x9 5 10PCS K201 K202 K600 K601 K602 K603 K604 K605 K606 AV LINE RED WHITE YELLOW L 1 2M 1PCS FM ANTENNA 1 8M 1PCS AM ANTENNA 1PCS CONNECTOR WIRE See ...

Страница 28: ... Attachment 1 All manuals and user guides at all guides com ...

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