McIntosh C2700 Service Manual

-50 -40 -30 -20 -50 -40 -30 -20
-10 -10
-60 -60
O U T P U T L E V E L I N d B O U T P U T L E V E L I N d B
INPUT
PUSH - TRIM
HOLD - SETUP
HEADPHONES
Performance Specifications ..........................................2
Notes...........................................................................2
Rear Panel ...................................................................3
Section Location ..........................................................4
Block Diagram ........................................................5 - 6
Interconnection Diagram ........................................7 - 8
Control Schematic and PCB .................................. 9 - 18
SERVICE MANUAL
C2700
TUBE PREAMPLIFIER
SERIAL NO. AHM1001 And Above
0 0
C 2 7 0 0 T U B E P R E A M P L I F I E R
USB
DSD256
1 2
OUTPUT
CONTENTS
-50 -40 -30 -20 -50 -40 -30 -20
-60 -60
O U T P U T L E V E L I N d B O U T P U T L E V E L I N d B
29%
TONE
MUTE
Digital Schematic and PCB ................................. 19 - 34
Audio Schematic and PCB ..................................35 - 48
Dsply/L&R Pshbtns/Hdphn/L&R Mtr Schematic and PCB 49 - 54
Tube ...................................................................55 - 62
Output ...............................................................63 - 66
Parts List .............................................................69 - 87
Repacking Instruction ................................................88
C2700
-10 -10
0 0
VOLUME
TRIM / SETUP
ADJUST
/
STANDBY ON
RESET