Yamaha F-20B Скачать руководство пользователя | Manualshive

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F-20B

7

REF NO.

PART NO.

DESCRIPTION

REMARKS

QTY

RANK

RANK: Japan only

*New parts

HF456330
HF457330
HF457330
HF458100
HF457100
HF457330
HF456100
HF457100
HF457470
HF455470
HF457220
VC740100
VC745000
HF456470
HF455560
HF455560
VR140800
V6607700
V7649200
V7649200
V7649200
V7649200
VG440200
VG440200

XO361A00

V7054700
XZ805A00
XZ806A00
XZ807A00
V6286700
V6286900
V6287000
V6287100

*
*
*
*

*

R16
R17

-19

R20
R21
R22
R23
R24
R25
R26
R27
R28
R29
R30
R31
R32

SW2

VR1
VR2
VR3
VR4
VR5
ZD1
ZD2

Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Metal Oxide Film Resistor
Metal Oxide Film Resistor
Carbon Resistor
Carbon Resistor
Carbon Resistor
Push Switch
Rotary Variable Resistor
Rotary Variable Resistor
Rotary Variable Resistor
Rotary Variable Resistor
Rotary Variable Resistor
Zener Diode
Zener Diode

Speaker Unit

Power SW
Transformer
Transformer
Transformer
Cord
Cord
Cord
Cord

3.3K 1/4 J
33.0K 1/4 J
33.0K 1/4 J
100.0K 1/4 J
10.0K 1/4 J
33.0K 1/4 J
1.0K 1/4 J
10.0K 1/4 J
47.0K 1/4 J
470.0 1/4 J
22.0K 1/4 J
1.0 1W J
100.0 1W J
4.7K 1/4 J
560.0 1/4 J
560.0 1/4 J

16mm 25KA
16mm 10KW(4B)
16mm 10KW(4B)
16mm 10KW(4B)
16mm 10KW(4B)
MTZ J 12.0B 12.0V
MTZ J 12.0B 12.0V

4ohm 30W

SDDJE1-A-2
J
UC
E
J VCTF
UC 3 SJT 18/3
E 3 HO5VV-F
UK 3 HO5VV-F

VOLUME
TREBLE
HIGH MID
LOW MID
BASS

POWER ON/OFF
J
U,C
H,B
J
U,C
H
B

01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
03
04

01
01

02
05

04

«
...
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»

Содержание F-20B

Страница 1: ...0010720 17800 CONTENTS SPECIFICATIONS 3 PANEL LAYOUT 3 CIRCUIT BOARD LAYOUT 4 BLOCK DIAGRAM 4 DISASSEMBLY PROCEDURE 5 CIRCUIT BOARDS 7 IC BLOCK DIAGRAM 8 INSPECTIONS 8 PARTS LIST OVERALL CIRCUIT DIAGRAM BASS AMPLIFIER This document is printed on chlorine free ECF paper with soy ink ...

Страница 2: ...g disassembly and parts replacement Recheck all work before you apply power to the unit WARNING CHEMICAL CONTENT NOTICE The solder used in the production of this product contains LEAD In addition other electrical electronic and or plastic where applicable components may also contain traces of chemicals found by the California Health and Welfare Agency and possibly other entities to cause cancer an...

Страница 3: ...neral model 230V 50Hz Dimensions W x H x D 357 x 453 x 242mm 14 1 x 17 8 x 9 5 Weight 10 5kg 23 lbs 2 oz INPUT PASSIVE ACTIVE Input Level Select Switch VOLUME No sound is produced when the VOLUME knob is set to 0 ACTIVE EQUALIZER TREBLE HIGH MID LOW MID BASS POWER INDICATOR The lamp will light when the amplifier s power switch is ON AUX IN Use the volume control on the audio device to control its ...

Страница 4: ...CTIVE TYPE TONE CONTROL POWER SUPPLY CIRCUIT POWER TRANSFORMER 4Ω Speaker PHONE AUX IN CN2 4P CN1 2P CN3 3P CN4 5P CN5 5P POWER SWITCH SW1 T2 T1 T4 T1 T2 G U C S BS MAIN 1 2 MAIN 2 2 T3 GAIN SELECT ACTIVE CH PASSIVE CH BASS VR5 LOW MID VR4 HIGH MID VR3 TREBLE VR2 VR1 IC3 5 7 VOLUME JK3 JK2 JK1 SW2 IC1 IC2 OP AMP OP AMP 8 4 12V 12V B B 5 3 12V 12V 8 4 Top View Side View Front View ...

Страница 5: ...marked 30 The pre main unit can then be removed by sliding it backward Fig 1 2 Speaker Time required about 2 min 2 1 Remove the back board See Procedure 1 1 2 2 Pull out the speaker wires Fig 1 2 3 Remove the four 4 screws marked 60a The speaker can then be removed Fig 1 3 MAIN 1 2 Circuit Board Time required about 4 min 3 1 Remove the pre main unit See Procedure 1 3 2 Remove the five 5 knobs mark...

Страница 6: ...Transformer Power Transformer Fig 4 P80 P80 MAIN1 2 Circuuit Board MAIN1 2 Circuuit Board MAIN1 2 Circuuit Board MAIN1 2 Circuuit Board Fig 3 4 MAIN 2 2 Circuit Board Time required about 3 min 4 1 Remove the pre main unit See Procedure 1 4 2 Remove the screw marked C80 The MAIN 2 2 circuit board can then be removed Fig 3 Fig 5 5 Power Transformer Time required about 4 min 5 1 Remove the pre main u...

Страница 7: ...SW A A INPUT GAIN SELECT VOLUME TREBLE A A MAIN1 2 CIRCUIT BOARD CIRCUIT BOARDS MAIN 1 2 J U C CNA V755470 MAIN 1 2 H B CNA V755480 MAIN 2 2 J U C CNA V755470 MAIN 2 2 H B CNA V755480 MAIN2 2 CIRCUIT BOARD Component side to MAIN 1 2 CN5 VERSION FUSE RATE INDICATION J U 250V 315mAL E BS 250V T160mAL Must be erased Must be erased Component side ...

Страница 8: ...t or left makes the sound gradually larger or smaller 3 3 Make sure that rotating the TREBLE knob to the right or left boosts or cuts the high frequency 3 4 Make sure that rotating the HIGH MID knob to the right or left boosts or cuts the upper middle frequency 3 5 Make sure that rotating the LOW MID knob to the right or left boosts or cuts the lower middle frequency 3 6 Make sure that rotating th...

Страница 9: ...eral export model 110V H North European model W General export model 220V I Indonesian model N X General export model J Japanese model Y Export model WARNING Components having special characteristics are marked and must be replaced with parts having specifications equal to those originally installed The numbers in QTY shows quantities for each unit The parts with in Part No are not available as sp...

Страница 10: ...F 20B 2 OVERALL ASSEMBLY 50 20 10 C40 C60 C50 C60 C50 C30 C30 A C20 C70 C90 C80 40 30 C100 C110 Overall Cabinet Assembly Pre Main Unit 60 60a ...

Страница 11: ...ss Head Screw Flat Washer Label Label Label Speaker Unit Bind Head Screw OVERALL CABINET ASSEMBLY Overall Cabinet Assembly Cabinet Assembly Corner Protector Oval Head Screw Handle Handle Holder Oval Head Screw Foot Bind Head Tapping Screw 1 Flat Washer Name Plate Bind Head Tapping Screw 1 Bind Head Tapping Screw 4 0X25 MFZN2BL 4 0X10X0 8 MFZN2BL 4ohm 30W 3 0X12 MFZN2BL KPBO KAH1D 205 KPBO KAH3D400...

Страница 12: ...F 20B 4 A10 A70 A60 A40 A10 A30 A80 A90 A20 P60 P40 P60 P30 P75 P70 P50 P10 P20 P90 P80 A50 P100 P120 P110 A100 A110 A130 A140 A120 Amp Kit P77 PRE MAIN UNIT ...

Страница 13: ... Pan Head Screw Button Knob Toothed Lock Washer B Earth Mark Amp Kit Amp Kit Amp Kit Amp Kit Circuit Board Circuit Board Insulation Sheet Sleeve Power SW Transformer Transformer Transformer Cord Holder Cord Cord Cord Cord Cord Strain Relief Cord Strain Relief Toothed Lock Washer A Flat Washer Hexagonal Nut Flat Washer Hexagonal Nut PINGOOD LCC 10 4 0X10 MFZN2BL 1 4 0 MFZN2Y 4 0 MFZN2Y 3 0X10 MFZN2...

Страница 14: ...ylar Capacitor Mylar Capacitor Electrolytic Cap Electrolytic Cap Capacitor Monolithic Ceramic Cap Monolithic Ceramic Cap Electrolytic Cap Electrolytic Cap Electrolytic Cap Electrolytic Cap Base Post Connector Base Post Connector Base Post Connector Diode Stack Fuse Fuse IC IC IC Phone Jack Phone Jack Phone Jack LED Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Car...

Страница 15: ...sistor Metal Oxide Film Resistor Metal Oxide Film Resistor Carbon Resistor Carbon Resistor Carbon Resistor Push Switch Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Zener Diode Zener Diode Speaker Unit Power SW Transformer Transformer Transformer Cord Cord Cord Cord 3 3K 1 4 J 33 0K 1 4 J 33 0K 1 4 J 100 0K 1 4 J 10 0K ...

Страница 16: ... AUX IN PHONES J U C S BS 250V 315mA 250V T160mA L WARNING D2SBA20 VP344100 DIODE STACK 1 5A 200V DB1 GAIN SELECT BASS LOW MID HIGH MID TREBLE VOLUME OP AMP HIFI AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP KEC 54238 KEC 54238 Components having special characteristics are marked and must be replaced with parts having specifications equal to those originally installed 4 SPEAKER ...

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