Timing Chart - Panasonic KX-FLB758RU Service Manual

KX-FLB758RU
7.5.2. ADF (Auto Document Feed) MOTOR DRIVE CIRCUIT
1. Functions
This motor functions for main operations including FAX transmission, ADF copy and PC scan.
This feed document paper synchronized for reading.
2. Motor operation
During motor driving, pin R3 of ASIC IC604 becomes a high level, and Q606, Q602 turns ON.
As a result, +24V is supplied to the motor coil.
Stepping pulses are output from ASIC IC604 pins, U6, Y7, W7, V7, causing driver IC600 pins,
16 ~ 13 to drive the motor coil.
The motor coil is energized sequentially in 2 phase increments, which causes a 1-step rotation.
A 1-step rotation feeds 0.042mm of document paper.
7.5.2.1.

TIMING CHART

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