CIRCUIT BOARDS

F-20B

CIRCUIT BOARDS

 

A

 

 

￿ MAIN1/2 CIRCUIT BOARD

 

 

INPUT

GAIN

VOLUME

TREBLE

SELECT

 

 

 

A

 

 

A'

 

 

 

to MAIN 2/2 CN4

HIGH MID

LOW MID

A'

to POWER

to POWER SW

TRANSFORMER

from POWER

from AC CORD

TRANSFORMER

 

POWER

 

BASS

AUX IN

PHONES

 

to SPEAKER

 

 

Component side

VERSION

FUSE

INDICATION

RATE

 

 

J, U

250V 315mAL

Must be

 

 

 

 

erased

 

 

Must be

E, BS

250V T160mAL

erased

 

￿MAIN2/2 CIRCUIT BOARD

MAIN 1/2 (J, U, C): CNA-V755470

 

MAIN 1/2 (H, B):

CNA-V755480

to MAIN 1/2 CN5

MAIN 2/2 (J, U, C): CNA-V755470

 

MAIN 2/2 (H, B):

CNA-V755480

Component side

7

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Image 7
Yamaha Bass Amplifier service manual Circuit Boards, F-20B