Cateye EC-3700, EC-3600 service manual Check Method of Causes Repair Method Explanation Figures

T-1No Display on Control Unit after Power ON. (2)

Applicable Models: EC-1200 EC-1600 EC-3600 EC-3700

T-1	No Display on Control Unit after Power ON. (2)
	Check Method of Causes	Repair Method	Explanation Figures

[3] When the meter reading at step 2. is 0V or less than 14V, check the
main unit in accordance with the following procedures:			Correct for 14V thru 19V
1. Remove the frame cover. (See sections D-1 and D-2
"Removing the Frame Covers.")
2. With the control unit removed, connect the AC adapter, and			Power Supply Board
turn on the power switch. Measure the voltage across the
electrolytic capacitor C1 on the power supply board (25V
1000μV). (Fig. 4)
Note: The layout of the power supply board may be different from			Black Cable
lot to lot. (Figs. 5 and 6)
t The wiring within the frame is correct when the measured	Replace the 5P cable.	(See the Section ES-2
voltage is in the range of 14V and 19V. When the voltage	"Replacing the Frame.")
across the electrolytic capacitor on the power supply board			Red Cable
is correct, the 5P cable, which connects the power supply
board and the control unit, may be defective.
t When the measured voltage is 0V, the wiring within the	Replace the Inlet Metal Base Set. (See the Section		Fig. 4
frame is defective.	ES-1 "Replacing the Wiring within the Frame."

Power Supply Board A Power Supply Board B

t When the problem cannot be remedied even if the 5P cable	Replace the power supply board. (See the Section
	ES-3 "Replacing the Power Supply Board. "Fig. 4
is replaced, the power supply board may be defective.

Fig. 5 Fig. 6

Cateye Ergociser Series 1000 Service Manual

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