Pioneer IS-21T Service Manual - Page 24

SINGLE OPERATION METHOD, Jigs and Measuring instruments, Single operation method and frequnency

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XC-IS21T 7.1.2 SINGLE OPERATION METHOD Jigs and Measuring instruments VA Low-frequency DC power- oscillator supplay 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) DC power-supplay Voltage (V) Remarks +8V +15V +5.6V 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) AF ASSY, W423 (GND) frequency 50 or 60 Hz Low-frequency oscillator level Gnd Approx.2.0 Vrms osc GND Note: Set up the low-frequncy oscillator level with in the limits of product moves. Remarks Note. 58

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58
XC-IS21T
7.1.2 SINGLE OPERATION METHOD
AF ASSY, W420 (+8v)
+8V
AF ASSY, W421 (+15v)
+15V
AF ASSY, W422 (+5.6v)
+5.6V
AF ASSY, W423 (GND)
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.)
Low-frequency oscillator
Connect point
B
frequency
level
Gnd
Remarks
U-COM ASSY, CN105 pin8 (AC)
50 or 60 Hz
Approx.2.0 Vrms
Note.
AF ASSY, W423 (GND)
osc GND
DC power-supplay
Connect point
A
Voltage (V)
Remarks
Low-frequency
oscillator
DC power-
supplay
V
A
Jigs and Measuring instruments
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.)
Note: Set up the low-frequncy oscillator level with in the limits of product moves.