YORKVILLE TRAYNOR YCS50 Service Manual page 4

Block Diagram for YCS50/50H/YCS90
D E S I G N E D A N D M A N U F A C T U R E D B Y Y O R K V I L L E S O U N D
U.S.A.
Boost
Input
Mono 1/4-inch
Preamp
V1:B
0 dB
Channel
Select
K1
Ch. 1
Preamp
Gain
V2:B
Ch. Select /Boost Footswitch EFX RVB Footswitch
Channel Select
Boost
Tone
Treble/Mid/Bass
Ch. 2
Gain
Preamp
V1:A
BRIT
Tone
Ch. 2
Gain
Treble/Mid/Bass
Preamp
V1:A
Ch. 2
BRIT/U.S.A.
Volume
Select
Boost
Level
Channel
Select
EQ
Treble/Bass/Mid
Ch. 1
Preamp
Volume
V2:A
Modern
Reverb
Effects
MODEL TYPE: YS1064 MODEL TYPE: YS1067
Ch. 1
Ch. 2
Dyna-Sound
Speaker Emulator
Reverb
Ch. 1
Reverb
Expander
Rtn
Ch. 2
Voice
K1
Power
+
Amp
Scoop
V4 V6
Splitter
V5 V7
V3 -
Master
Volume
Presence Resonance
Effects Send
Effects Return
D.I. Out
+
Pre-Amp Out
Pre-Amp In
Reverb
Drive
Accutronics ©
U1 U2
B B
4EBC1B
External
Speaker Out
Internal
Speaker Out
YCS50H
YCS50H Tube Configuration
SPLITTER
PREAMP
12AX7 12AX7 12AX7
V3 V2 V1
POWER
DISCONNECT POWER WHEN
REPLACING TUBES
EL34 EL34
DÉBRANCHÉ L'APPAREIL AVANT
V5 V4
DE REMPLACER LES LAMPES
YCS50
YCS50 Tube Configuration
SPLITTER
PREAMP
12AX7 12AX7 12AX7
V3 V2 V1
POWER
DISCONNECT POWER WHEN
REPLACING TUBES
5881 5881
DÉBRANCHÉ L'APPAREIL AVANT
V5 V4
DE REMPLACER LES LAMPES
YCS50 Speaker Configuration
12-inch Speaker
YS#7081
-
-
8-ohms
+
+
YCS90
YCS90 Tube Configuration
SPLITTER
PREAMP
DISCONNECT POWER WHEN
12AX7 12AX7 12AX7
REPLACING TUBES
DÉBRANCHÉ L'APPAREIL AVANT
V3 V2 V1
DE REMPLACER LES LAMPES
POWER
5881 5881 5881 5881
V7 V6 V5 V4
YCS90 Speaker Configuration
-
16-ohms
12-inch Speakers
YS#7083
-
+
-
+
16-ohms
+
BLOCK-DIAG-ycs50-ycs90-00-1v2.ai