4
VOLUME
INPUT
HEADPHONES
PUSH - TRIM
PUSH - POWER
STANDBY
30 125 500 2k 10k
V3 - 12AT7
V1 - 12AX7A
V4 - 12AT7
V2 - 12AX7A
TO AVOID A FIRE HAZARD, THE FOAM INSERT
OVER THE VACUUM TUBES MUST BE REMOVED
PRIOR TO CONNECTING THE A.C. MAINS POWER
SUPPLY CORD AND OPERATING THIS PRODUCT.
WARNING
REFER TO PAGE 3 IN THE MA352 OWNER’S
MANUAL FOR INSTRUCTIONS.
Caution: To prevent damage to the MA352
Tubes during shipping, there is a
special foam insert surrounding the
Tubes of the Integrated Amplifier.
The Foam Insert must be
removed from the MA352
before connecting the AC
Power Supply Cord to the
integrated amplifier.
Failure to do so has the po-
tential of a Fire Hazard,
resulting in damage to the
MA352 and the surrounding
environment.
Follow these instructions for
removal of the packing foam
before connecting the AC
Power Supply Cord to the
MA352.
The MA352 has no user serviceable parts,
including the tubes. If repairs are needed they
must be performed by an authorized McIntosh
Service Agency. Follow the steps below to pre-
pare the MA352 for operation:
1. Orient the MA352 so the Front and Top of the
Integrated Amplifier is facing you. Refer to
figure A.
3. Carefully lift upright the Foam Insert Vacuum
Tube Cover and place it near to the MA352 Inte-
grated Amplifier. Refer to figure C.
Figure A
Remove the Warning Sheet
Remove the Foam
Insert Vacuum
Tube Cover
Figure B
2. Remove the Warning Sheet and save it with the
Shipping Carton for possible future use. Refer to
figures A and B.
Vacuum Tube Shield Covers
4. Remove from the Foam, the four Vacuum Tube
Shield Covers and place them along the side of the
MA352 Integrated Amplifier. Save the Foam In-
sert Vacuum Tube Cover with the Shipping Carton
for possible future use. Refer to figure D.
Figure D
Remove the four Vacuum Tube Shield Covers
VOLUME
INPUT
HEADPHONES
PUSH - TRIM
PUSH - POWER
STANDBY
30 125 500 2k 10k
V3 - 12AT7
V1 - 12AX7A
V4 - 12AT7
V2 - 12AX7A
30
125
500
2K 10K
BAL 1
15%
Figure C
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