Yamaha ra 100 schematic
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Extracted text from yamaha ra 100 schematic (Ocr-read)
Page 1
PAINA0277I)
VOLUIIIE 2
AIOK A2 5K
. TREBLE BASS
3 200K
+24 RE
u T
32,? 275% "PsthA02482NA02483I
fl 3?
REMOTE
R2 I FR/CH)
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RI R2 E DO PI.
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NOTES:
1.
. ALL CAPACITORS IN MFD. UNLESS OTHERWISE NOTED.
2
3.
4. TRANSISTORS
JA3052A x2
GR .
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: : 4 on"! . TREMOLO :
_________________________________ A I I H 2 . UNIT 3* I I
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+I2 'SR L : f I 3 L--_--.l
TREMOLO SPEED . - '- .............._ .- .. .. d 'YI'IEAANOSLP' . a. BL SP- I
85K: 2 i - ' l . . _
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(TREMOLO/CHORUS)c I. _ n .. J
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§ § :TRANS. I . 6P 2
L- - "J I m I
A . R o O '
SR-2b
(TREMOLO/CHORUS)
UNIT II?
TREMOLO :
I
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P
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----fl 1-1
l'
.-
ALL RESISTORS IN OHMS 1/4WATT UNLESS OTHERWISE NOTED.
ALL VOLTAGES MEASURED WITH A IOMQ/DC ELECTRONIC
VOLTMETER, WITH ALL CONTROLS SET AT MINIMUM.
TRI, 3,5: 2SC644
TR2, 4, 6: zscazs
RELAYS
SR-1: FUJITSU #474
SR-2: OMRON MHz/1v
TREMOLO TRANSFORMER
U.S. & CANADIAN MODELS: NOT PROVIDED
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Yamaha Combo Amplifier
GENERAL, EUROPEAN, SOUTH AFRICAN 8! AUSTRALIAN - .
. MODELS: REFER To PAGE 7 Model RA*1°0
., AC OUTLET ' ~ . ' ,
PROVIDED ON GENERAL MODEL ONLY Yamaha E"1'.*topa G . m .b .H o
..POWER SWITCH CIRCUIT . I '
7 EUROPEAN & AUSTRALIAN MODELS: REFER TO PAGE 7 GSB-01 9 1 o . 1 2 . 75
U.S. 81 CANADIAN MODELS: REFER TO PAGE 11