1, current detection failure (such as reported E019, E001):
(1) The control board Q1 (15050026) is broken.
(2) 7840 Bad: When the inverter is powered, use DC file, black is connected to 5 feet, red is connected to 6, 7, 8 feet respectively, the value is 2.5, 2.5, 5 is normal, otherwise 7840 is bad.
(3) Small board is bad: When the inverter is powered on, use the DC file, the black pin is connected to the 5 feet of the 7840, and the red pin is connected to the small board. The left foot should be 2.5, 2.5, 2.5, 3.41.5, 0, 1.6. .
If the value is wrong, the small board is bad: At this time, the three small ICs (39030024LMV393) in the small board can be replaced. If it is not good, replace the small board.
2. Display POFF:
The POFF of the driver board should be 2.6-2.7. If Measured to 1.9, it may be R51, R52, C36, C37. One of the cables is bad, and the electrolytic capacitor is the most bad. POFF is reported only when the motor is running, and the driver board transformer may be damaged.
3, the buffer resistance is bad:
The snubber resistor and the filter bulk capacitor are paired. If it's bad, the other is probably bad too. A bad snubber resistor may also be caused by a relay that does not pull in (a bad relay or a bad control board, or a bad component on the circuit connected to the two). Single-phase input (220V) inverter, pay special attention to: If there is no display or bomber, it is likely that the user has connected to the three-phase power (380V) (can check the fault record of the control board: whether the bus voltage is 310 Changed to 540). At this time, the rectifier bridge of the IPM is broken, and the large capacitor of the filter is also bad (or bursting or the top surface is hardened). If you only power on after replacing the IPM, you will hear the sound of “啪,啪†(the sound inside the capacitor), and you should immediately power off, otherwise the rectifier bridge of IPM will be bad again. Found that a large capacitor is bad, it is best to change it. Because the capacitor is a device that is easy to deteriorate and aging.
4, the display is unstable:
First display, then no, the fan stops, the voltage is only 12, this phenomenon is generally U1 thick film is bad. Report fault E015: The power-on indicator is on, the keyboard is not lit, and the fan is turned on--the fan is short-circuited.
5, no brake:
The brake pipes of 01180099, 01180100, 01180113, and 01180114 are not inside the IPM. The inverter and the non-display of the inverter are likely to be caused when the inverter is stopped and braked. Therefore, after replacing the IPM, be sure to check the quality of the brake circuit: Brake optocoupler, brake pipe (MOS tube is not good, can measure its series of freewheeling diodes, normally should be about 0.37), gate resistance (that is, the gate resistance of MOS tube, normally should be 100 ohms) . After repairing the power, TD900F093 is changed to 150, reported to E007, red is connected to P (+), black is connected to PB. If the voltage is 17-30, the brake is normal. TD3200F133=150 DC voltage 270-350V braking function.
6, fried rectifier bridge:
If some of the rectifier bridges are damaged and the inverter bridges are all good, it may be caused by sparking between the positive and negative busbars. Environmental humidity is the main cause, usually there are water droplets between the positive and negative terminals, or there are water droplets between the positive terminal and the radiator causing the bomber. The insulation of the terminals of such bad machines has deteriorated and must be replaced. Otherwise, it will be blown up again. Another reason is that the filter capacitor is short-circuited (or burst or the top surface is hardened), and the capacitor should be replaced.
7, the machine is snoring:
That is, the fan is fast and slow, and there is no display. Generally, the control board is short-circuited, and the control board is removed and then powered on. If it is still snoring, it may be that the device around the thick film is broken. For example, the resistance of the TD1000 large-volume R56 resistor 27 ohm is much larger, that is, the snoring protection circuit itself. broken. The switching power supply does not work. It can measure the voltage of one of the resistors, such as a little voltage and jumps, indicating that the switching power supply has started to oscillate, but the rear circuit is short-circuited (the tin between the transformer pins, the filter capacitor touches the æª), and the å— protection circuit is in the kick in. If there is no voltage at all, it means that the switching power supply does not start, generally the thick film is bad or the 2844 and nearby devices are bad.
8, the fan is weak, the speed is slow:
D6 breakdown of the EV1000. Telegraph 8888: FECDF21U1 board U8 is bad, with small cracks. EV1000 such as 01180128, with load stop report 8888: transformer inductance is worse or PC9 primary and secondary insulation is not enough.
9, according to the operation report 8888: drive optocoupler short circuit.
10, EV1000 large volume: the original fault is a bomber, after running, no output or E019, often bad is U9. No output sometimes Q2 is bad.
11, EV1000 small volume: the original fault is a bomber, no output after repair, often R13 is bad. Therefore, when repairing the bomber, it is necessary to develop a fluent amount of R13 is not 10 euros.
12, TD3000 power-on display POFF:
1. Is the CVD voltage of the driver board normal at 2.5V~2.8V?
2. Is the voltage of the driver board IU, IV and IW normal? (current detection circuit)
3. Is the VREF reference voltage of the control board normal? Check the regulator U24 of T1 and 2.5V.
If all of the above are normal, please re-program two DSP programs. Please note that after erasing, power off and write the program for a few seconds. Otherwise, the DSP is bad.
After the whole machine is repaired and the power-on display is normal, it is necessary to go through the following steps to reduce the possibility of the bomber.
DC file red is connected to "ten", black is connected to UVW: TD900, TD3200 single phase should be 310v, TD900 three-phase should be 540v. TD1000, TD3000, EV1000, EV2000 should be 5-10V.
If it is not right, you can't press it, otherwise there will be a bomber in all likelihood. At this point, stop the corresponding optocoupler and diode, and repeat the above process until the voltage is correct.
13. Display E010:
Power on display E010, Hall is bad. The operation shows E010 and the module is broken.
When the inverter is powered on, it displays E010, and the current detection circuit itself is faulty. That is, the inverter is not running yet, there is no current output, but the circuit has detected an output current. Small power machines are often TL082C bad, high power machines are often Hall bad. In the end, what phase of UVW has a problem? It can be judged by the following method: use the mv file of the table to connect the test points of IU, IV and IW to the normal, and should be 0. If the point is high (for example, +10) or low (for example, -10), there is a problem with the corresponding phase current. .
Example IV = 1000 mv, the V phase Hall is bad. When the inverter power-on display is normal, E010 is displayed as soon as the operation is pressed, and the module is most likely to be bad. Which phase module is bad, can be judged by the following methods: power on, DC file red is connected to "ten", black is connected to UVW, normal should be 5-10V, such as one of the phases is much higher, this phase module is bad.
14, the output is unbalanced:
If the IPM and optocoupler are measured, the resistance is good. Generally, the performance of the optocoupler is deteriorated, and the replacement is good. Of course, the control board, IPM is also bad. To judge whether the IPM is broken on the upper bridge or bad on the lower bridge, you can use the following methods to judge: power on and press the operation, the DC file is connected to the red "10", and the black is connected to the UVW. The normal value should be 210V. If one of the phases is 0, the lower bridge Bad. The DC file is connected to the black "-", and the red is connected to the UVW. The normal value should be 210V. If one of the phases is 0, the upper bridge is broken.
15. Insulation or pressure resistance:
(1) The heat sink is not flat and the IGBT is bad. (2) There is a hard foreign matter (such as tin slag) in the silicone grease, which causes the IGBT to be damaged. (3) The insulation film under the brake pipe is broken or the ceramic piece is cracked. (4) The high power machine insulation column is defective. (5) The grounding capacitor on the board is defective. One pair of secondary withstand voltage: However, the drive plate optocoupler is poor.
16, EV2000 health disk: display 4 8 and all lights are bright (darker): socket CN1 second row left to right second foot solder joint.
17, the control panel has no display repair four steps:
(1) Quantity voltage. (2) A crystal oscillator. (3) The amount of reset signal. (4) Rewrite the software.
18, reported POFF or E019 troubleshooting:
After the aging of the FECD machine, the PQC test report is POFF or E019. The U1 is a little hot by hand, and it is OK after replacing U1. Can not write software: FECD control board U1U2U16U301 can not write into the software, found 5V short circuit in the test tool power on, but the value of the resistance between the 5V and the ground with a multimeter is normal. A lot of devices have been removed, and it has been analyzed for a long time. Now U329 is installed. Repair the board for repair and repair, first do not rush to measure, to change the device repair. First comprehensive observation: front, back, fault point close distance, long distance, etc. with or without tin, solder, reverse, wrong.
19. EV2000 control board troubleshooting:
Power-on POFF: Measure 76, 77 or C19 of U1, the voltage of C18 is normally 1.6V. If it is normal, the DSP is bad; if the voltage is low (such as 3.8V, 0.5v), U19, U20 is bad.
No display: 3 feet of 3.3VQ10 and GND resistance are measured, and normal 0.6K.DSP is bad. No display: The U24's 8 feet are only 1.5V, and the normal is 2.5V. The L3 is unreachable and the L3 is bad. Otherwise the DSP is bad.
No display: Test U17-LM324 4 and 11 feet (+-15V) short circuit. Power on LM324, found U17 and U18 a bit hot, not shorted after removal. U17 and U18 are bad.
No display: 5V short circuit. U6 is bad. Display E004: measure 76, 77 or C19 of U1, the voltage of C18 is 3.8V. Normally it is 1.6V, U19, U20 is bad.
One press to run the bomber: U5, U9 is bad. VRF has no 10V: U42, C107, C108 are bad.
Report E010: The upper tooling test U-light is always on: U9 is bad. The BRAKE lamp is always on, and the relay K1 is ringing (ie, the fault relay is closed): U6 is bad.
Report E019: The voltage of the 8th pin of ICU19, U20, U21 corresponding to IU, IV, IW is 0.34, 0.40, 6.46. Therefore U21 is bad.
20, EV2000 power-on keyboard 4 8 plus 5 lights flash: control board U8 is bad.
EV1000 small volume control board 03025856: no display: test CN3's 6-pin (SPISIMO-OUT) voltage is 0V, normal is 5V. This pin corresponds to U4's 16-pin, 4-pin to DSP's 21-pin, normal is 3.3V, measured It is 0V. Therefore U1-DSP is bad. The frequency of the EV1000 size and volume control board cannot be lowered (50HZ unchanged): L8 is soldered or bumped.
TD900 small volume frequency is less than 50HZ, only about 49.80, control board D10 reference drift, that is, 5.1V regulator tube is bad
TD1000 small volume control panel 03023847: reported E001: U7 is bad.
TD3000 control board: The operation mode changes after power-on: E016, U13EEPROM sometimes appears bad when changing the operation mode.
TD3200 control panel: POFF appears when changing the model of the machine. When the factory parameters are restored, it is reported to E028: before the production is sent for repair, the 93-pin RS1 signal of the DSP is changed to R19 by U19, the U11 is changed to the RSEEPROM signal to U4, and the R19 is not available. Cracked (the surface is not visible at all), that is, the EEPROM cannot be reset.
21, all control board writing software:
(1) No power (110 appears): (A) Short circuit. (B) The crystal oscillator does not vibrate (normal power-on voltage measurement: power supply 3.3V, frequency output terminal 1.6V, if the voltage is wrong, the crystal oscillator is broken).
(2) Can not write software (appears 113, 114): Generally DSP is bad.
Geekvape Vape,Geek Bar Disposable Vape,Geek Bar Vape Kit,Geek Bar Vape Pod
tsvape , https://www.tsvaping.com