Measurements And Adjustments - Teac AG-D8900 Service Manual

MEASUREMENTS AND ADJUSTMENTS

ALIGNMENT INSTRUCTIONS
EQUIPMENT NEEDED:
AM Signal Generator
FM Signal Generator
Oscilloscope
VTVM(AC, DC)
Test loop antenna (AM Adjustment)
Dummy antenna (FM Adjustment)
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
100% (40 kHz Dev.) [E/UK]
FM
100% (75 kHz Dev.) [US/J]
ADJUSTMENT POINT
L104
T102
T101
Modulation
30%
AM LOOP ANT FM ANT
ANT TERMINAL
CT10 L105
J205
J207
IC11
Modulation frequency
400Hz
400Hz
(FOR EUR version)
L2
PACK1
L5
L7
(FOR UL[J] version)
T1
L7
CT10
L104
L105
T101
T102
VR13
VR12
VR11
J208
J205
J207
<PACK DETAIL>
L1
L1
FM ANT COIL
L2
L3
L4 FM RF COIL
IFT
L5
L6
L7
FM OSC COIL
L3 FM ANT COIL
L3
L6
L4
L5 FM RF COIL
L6
L7
FM OSC COIL
T1
FM IFT
AM ANT TRIMMER (1503kHz/1510kHz)
AM ANT COIL
AM OSC COIL
FM IFT COIL
AM IFT COIL (612kHz/610kHz)
FM SD ADJUSTMENT
AM SD ADJUSTMENT
FM SEPARATION ADJ
FM/AM VT
FM OFFSET ADJ TP
5