McIntosh MAC1500 - SERVICE MANUAL 1

MAC 1500 TOP and BOTTOM VIEWS
V 15 V 14 V13 BIAS ADJUST
CONTROLS V12 V3 V4
OUTPUT
TRANSFORMERS
POWER
TRANSFORMER
MIXER
LEFT AND RIGHT
PRE AMP PRINTED
CIRCUIT BOARDS
TRIMMER
RF
3RD IF TRANSFORMER
V 4 MUTE ADJUST CONTROL
2ND IF TRANSFORMER
1ST IF TRANSFORMER
INJECT 10.7 MC
SIGNAL HERE
MIXER COIL
15
TUNING CONDENSER COVER
ANTENNA
COIL
V14 V15 V12 V13
V1
TRIMMER
COIL
V2
V10
V9
V11
LEFT
RIGHT
OSCILLATOR
COIL
TRIMMER
6EA8 (V7)
12AU7 (V8)
COIL
RF COIL
LOW PASS FILTER
ANTENNA COIL
67 KC FILTER
38 KC TRANSFORMER19 KC TRANSFORMER
MPX INPUT
(WHITE WIRE;
Q7
Q5
Q8
Q6
19KC
PHASE COIL
DISCRIMINATOR
TRANSFORMER
V5
Q3
Q4
Q2
2.2K
V6
4TH IF TRANSFORMER