According to the user, 20 days before the machine repair appears the fault, initially in quick play key still picture, but after a friend maintenance picture nor the.TzCservice manual download site
The machine uses the third generation of the high - chip company decompression chip, the use of the Philip movement. Routinely check 5V power supply, reset, clock, have been sent to decompression board; check the 3.3V power supply, found around only 1.3V, examining only the step-down diode found a circuit, for the voltage rise to 3.2V, but the fault is still. Let's look at the CL680 pin is welded, and the pins stained with rosin, then rinse with alcohol after the boot, the sound figure appeared. This thought of troubleshooting, unexpectedly shut down after the open, unexpectedly, no sound figure. Again with alcohol cleaning after the boot pin, the sound of normal; but the fault is still off again. Doubt, 680 pin weld, welding invalid; coated with alcohol 680 surface to help heat dissipation, invalid, but such as alcohol wet pin machine is restored to normal. Finally with finger side pressing 680 pin boot, when pressing the {113} ~ {119} feet, sound, figure appeared. Check circuit found that the original 680 the {115} feet and {116} feet should also ground, while the former maintenance is the misuse of the woven belt adjacent original feet solder ceiling to, lead to the {115} feet grounded, thus appears the looks very strange but do not blame the failure.TzCservice manual download site