Adjustment Procedure - Marantz CR710/F1W Service Manual

6. ADJUSTMENT PROCEDURE

ALIGNMENT INSTRUCTIONS
EQUIPMENT NEEDED:
AM Signal Generator
FM Signal Generator
Oscilloscope
VTVM(AC, DC)
Test loop antenna (AW Adjustment)
Dummy antenna (FM Adjustment)
Stereo signal modulator
Frequency counter
Distortion analyser
IMPORTANT
1. Check power-source voltage.
2. Set the function switch to band aligned.
3. Keep the signal input as low as possible to adjust accurately.
4. Modulation and modulation frequency.
Item
Band
AM
FM 100%(75KHz Dev.)
ADJUSTMENT POINT
Modulation
30%
OPTICAL
C127
T101
TRIMMER
AM ANT COIL
CN10
VR13
OFFSET ADJ
SEP ADJ
T101
FM IFT
IC12
CUP11318-4
Modulation frequency
400Hz
400Hz
AM FM
PACK1
L2
T102
L5
AM OSC
L6
L7
T104
AM IFT
T103
FM IFT
VR12
AM TUNED ADJ
VR11
FM TUNED ADJ
IC11
LC72131
CN12
20
L1
L3
L4
T1