Samsung VP-D361i Service Manual page 25

3-3-5 Tape Path Adjustment
3-3-5(a) Preparation for Adjustment
ΠClean the tape running surface (Poles, Drum, Capstan Shaft, Pinch Roller).
´ Observe the PB RF signal and Head Switching Pulse on an oscilloscope.
ˇ Play back the alignment tape.
¨ Check that the waveform of the RF signal is flat at both inlet and outlet(A in Fig. 3-15).
If not flat (B or C in Fig. 3-15), do adjustments 3-3-5(b) through 3-3-5(d).
Samsung Electronics
9 10
8
7
RF Signal
6
(Pin 3 of CNR02)
5
4
3
Head Switching
2
(Pin 2 of CNR02)
1
Fig. 3-16 Rear PCB (Top Side)
11
12
13
14
15
16
17
18
Alignment and Adjustments
CNR02
3-13