Waveforms - Pioneer DDJ-T1 Service Manual

5

10.17 WAVEFORMS

Measuring equipment: Oscilloscope (Tektronix TDS3054)
Probe (Tektronix P6139A/P5050; Input Capacitance: 8 to 11.1 [pF], Input Impedance: 10 M[Ω])
The display voltage value of the oscilloscope is a reference value. The voltage value changes by the filter of the oscilloscope
and a difference of the measuring function and a probe.
NOTE: The following waveforms were measured at the point of the corresponding
balloon number in the schematic diagram.
O
USBB ASSY
Power bus power
Mode: POWER ON (BUS POWER)
JA2502 - pin 1 (V+USB5)
1
V: 5.0 V/div. H: 40 μS/div.
CN2501 - pin 13 (V+5_USB)
2
V: 5.0 V/div. H: 40 μS/div.
CN2501 - pin 4 (V+4R7_STB)
3
V: 5.0 V/div. H: 40 μS/div.
CN2501 - pin 5 (ADP_DET)
4
V: 2.0 V/div. H: 40 μS/div.
1
2
3
4
AC adapter
Mode: POWER ON (AC ADAPTER)
JA2501 - pin 1 (V+ADP5)
4
V: 5.0 V/div. H: 100 μS/div.
CN2501 - pin 13 (V+5_USB)
2
V: 5.0 V/div. H: 100 μS/div.
CN2501 - pin 4 (V+4R7_STB)
3
V: 5.0 V/div. H: 100 μS/div.
CN2501 - pin 5 (ADP_DET)
5
V: 2.0 V/div. H: 100 μS/div.
4
2
3
5
5
6
Power control
Mode: POWER ON (BUS POWER)
CN2501 - pin 4 (V+4R7_STB)
3
V: 5.0 V/div. H: 100 mS/div.
CN2501 - pin 6 (P_SW1_ADP)
6
V: 5.0 V/div. H: 100 mS/div.
CN2501 - pin 7 (P_SW2_USB)
7
V: 2.0 V/div. H: 100 mS/div.
CN2501 - pin 1 (V+5D)
8
V: 5.0 V/div. H: 100 mS/div.
3
6
7
8
Power control
Mode: POWER ON (AC ADAPTER)
CN2501 - pin 4 (V+4R7_STB)
3
V: 5.0 V/div. H: 100 mS/div.
CN2501 - pin 6 (P_SW1_ADP)
6
V: 5.0 V/div. H: 100 mS/div.
CN2501 - pin 7 (P_SW2_USB)
7
V: 2.0 V/div. H: 100 mS/div.
CN2501 - pin 1 (V+5D)
8
V: 5.0 V/div. H: 100 mS/div.
3
6
7
8
DDJ-T1
6
7
B
UCOM ASSY
USB UCOM start up
Mode: POWER ON
TP1049/CN1004 - pin 13 (V+5_USB)
9
V: 5.0 V/div. H: 100 mS/div.
TP101/IC104 - pin 5 (V+3R3_USB)
10
V: 2.0 V/div. H: 100 mS/div.
Q201 - pin 3 (USB_DET)
11
V: 2.0 V/div. H: 100 mS/div.
IC202 - pin 10 (USB_RST)
12
V: 2.0 V/div. H: 100 mS/div.
9
10
11
12
USB UCOM X'tal
Mode: POWER ON
IC202 - pin 51 (XTALI)
13
V: 1.0 V/div. H: 20 mS/div.
13
I2C USB UCOM EEPROM
Mode: POWER ON
IC202 - pin 10 (USB_RST)
12
V: 2.0 V/div. H: 1 mS/div.
TP210/IC201 - pin 6 (EEP_SCL)
14
V: 2.0 V/div. H: 1 mS/div.
TP211/IC201 - pin 5 (EEP_SDA)
15
V: 2.0 V/div. H: 1 mS/div.
12
14
15
7
8
A
B
C
D
E
F
95
8