Aiwa HV-E212 - Adjustment Procedures; Electrical Adjustments

ELECTRICAL ADJUSTMENT
1. SERVICING LOCATIONS
VIDEO };AUDIO
OUT jj OUT
SFR303
PB Y LEVEL ADJ.
2. SERVO ADJUSTMENT
1. RF Switching Position Adjustment (Main Circuit Board)
Oscilloscope CH1: VIDEO OUTPUT
CH2: RF SWITCHING PULSE
(© of Q106)
1) Play back the alignment tape TTV-P1.
2) Set the tracking volume to center.
3) Adjust SFR102 on main circuit board so that the
switching position becomes as shown below.
MAIN C. B (PATTERN SIDE)
FC301
®BDODOOOD
PB Y-FM ie
SFR102
IC102
RF SW
POS ADJ
RF SWP
3. VIDEO ADJUSTMENT
1. PB Y Level Adjustment (Main Circuit Board)
Oscilloscope : VIDEO OUT
1) Terminate the VIDEO OUT jack with 750hm or
connect the monitor TV.
2) Play back the alignment tape TTV-P1.
3) Adjust SFR303 so that the video output level is as
shown in the diagram below.
White (100%)
Enlargement
(Use delay trigger function)
Vertical SYNC signal
CH-1
+-6.5 + 0.5H—-|
Fig-1
Fig-2