Pioneer M-NS1 Podręcznik - Strona 29

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7.1.2 SINGLE OPERATION METHOD

Voltage of each part and method of diagnosing each IC

Test Point for Service

COMPLEX ASSY

SIDE B

Diagnosis of Voltage of Each Part

FOR SERVICE 1. AC RY

in the power supply outlet.

Short

The voltage of each part is checked.

Refer to next page (diagnosis point).

Diagnosis of Each IC

FOR SERVICE 1. AC RY

in the power supply outlet.

FOR SERVICE 2. SPRY

FOR SERVICE 3. MUTE

Short

The AUDIO signal (About 1kHz) is input to the input side of each IC, and the output is confirmed.

Refer to next page (diagnosis point).

OP amplifier (AMP Assy) . . . . . . IC3001, IC3901, and IC3451

Amplifier (AMP Assy) . . . . . . IC3301 and IC3401

Diagnosis of IC3021

Note: The single operation confirmation cannot be done, because IC3021(E-VOL) is

controlled with the microcomputer of Stereo CD tuner (XC-F10).

point of the COMPLEX Assy is short-circuited (AC RELAY ON), and the AC power code is inserted

point of the COMPLEX Assy is short-circuited (SP RELAY ON).

point of the COMPLEX Assy is short-circuited (MUTE OFF).

FOR SERVICE

1. AC RY

FOR SERVICE

3. MUTE

FOR SERVICE

2. SP RY

Short

M-F10