Single Operation Method - Pioneer IS-21T Service Manual

XC-IS21T

7.1.2 SINGLE OPERATION METHOD

Jigs and Measuring instruments
Low-frequency
oscillator
Single operation method and frequnency oscilator inputlevel.
1. Connect part A of the AF ASSY [W420(+8V),W421 (+15V), W422 (+5.6V), W423(GND) and DC power-supplay.
(Refer to Fig. 7-1.)
Connect point A
AF ASSY, W420 (+8v)
AF ASSY, W421 (+15v)
AF ASSY, W422 (+5.6v)
AF ASSY, W423 (GND)
2. Connect part B of the U-COM ASSY [ CN105 pin8 (AC), AF ASSY[W423 (GND)] and frequency oscillator.
(Refer to Fig. 7-1 and 7-2.)
Connect point B
U-COM ASSY, CN105 pin8 (AC) 50 or 60 Hz Approx.2.0 Vrms
AF ASSY, W423 (GND)
Note: Set up the low-frequncy oscillator level with in the limits of product moves.
58
V A
DC power-
supplay
DC power-supplay
Voltage (V)
+8V
+15V
+5.6V
GND
Low-frequency oscillator
frequency level
Remarks
Gnd Remarks
Note.
osc GND