Panasonic UB-T780 Service Manual ▷ View online
53
UB-T780
9 Block and Connection Diagrams
9.1.
Block Diagram
IC313
(SRAM)
IC
(Gate Array)
IC312
(CPU)
Power Board
IC311
EEPROM
IC307
(Comparator)
IC306
IC306
(80 kHz LPF)
IC304 IC304
IC602
SN601
IC308
(Comparator)
IC305
IC305
(80 kHz LPF)
IC301 IC301
IC601
SN600
Comparator
100 kHz Trap
IC314
(Reset)
IC317
Thermo Sensor
(Thermistor)
Q606 Q607
IC600
IC600
D600, D601
D701
Power LED: Green
D700
Error LED: Red
LED Board
Sensor Board
+5V
Electronic Pen Adjustment
and Receiver Level Adjustment of eilte Panaboard
and Receiver Level Adjustment of eilte Panaboard
PC
IC318
(USB Device Controller)
IC320
(USB Hub Controller)
Left Ultrasonic Sensor
Right Ultrasonic Sensor
Control Board
Infrared Sensor
Memory
IC603
54
UB-T780
9.2.
Connection Diagram
Thermo Sensor
(Thermistor)
CN600
CN601
CN300
CN305
CN301
JK300
PC
Control Board
JK301
CN303
CN302
CN201
CN101
CN700
Power Switch
Sensor Board
CN2
CN1
CN3
Pen Board
Power Board
AC Inlet
LED Board
Not Used
USB Cable
For adjusting Receiver Level
Memory
Ultrasonic Transducer
For adjusting Electronic Pen
55
UB-T780
10 Explanation of Connector
1
2
3
4
5
6
7
8
9
10
11
12
CN300 (Control Board) - CN601 (Sensor Board)
CN300
1
2
3
4
5
6
7
8
9
10
11
12
CN601
GND
SONIC_L
GND
+5V
GND
SONIC_R
GND
+5V
GND
LED
+5V
RTH
Signal Name
Ground
Left ultrasonic Signal
Ground
DC +5V
Ground
Right ultrasonic Signal
Ground
DC +5V
Ground
LED Signal
DC +5V
Thermistor Signal
Description
1
2
3
4
5
6
CN2 (Pen Board)
CN2
1
2
3
4
5
6
FPC
GND
GND
IR ON
+5V
+12V
+12V
Signal Name
Ground
Ground
Infrared Ray Drive Signal
DC +5V
DC +12V
DC +12V
Description
1
2
CN1 (Pen Board)
CN1
1
2
US
US DRIVE
+12V
Signal Name
US Drive Signal
DC +12V
Description
1
2
3
4
5
6
CN201 (Power Board) - CN303 (Main Board)
CN201
1
2
3
4
5
6
CN303
+5V
+5V
+5V
GND
GND
GND
Signal Name
DC +5V
DC +5V
DC +5V
Ground
Ground
Ground
Description
1
2
CN101 (Power Board)
CN101
1
2
AC Inlet
L
N
Signal Name
LIVE AC240V or AC120V power source
NEUTRAL Earth
Description
1
2
3
4
5
6
CN3 (Pen Board)
CN3
---
---
---
---
---
---
GND
NC
BVDT
BSW
DC/DC ON
*PDM
Signal Name
For adjusting Electronic Pen
Description
56
UB-T780
1
2
3
4
5
6
7
8
9
10
CN301 (Control Board)
CN301
---
---
---
---
---
---
---
---
---
---
----------
GND
RST_IN
SO
VDD
SI
FLMD0
SCK
PCM0
FLMD1
RST_OUT
Signal Name
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Description
1
2
3
4
CN302 (Control Board) - CN700 (LED Board)
CN302
1
2
3
4
CN700
+5V
GND
LED1
LED2
Signal Name
DC +5V
Ground
Error LED Signal
Power LED Signal
Description
1
2
3
4
CN305 (Control Board)
CN305
---
---
---
---
----------
OUT1
IN1
OUT2
GND
Signal Name
For adjusting Electronic Pen
Description
1
2
CN306 (Control Board)
CN306
---
---
----------
---
---
Signal Name
Not used
Not used
Description
1
2
3
4
JK300 (Control Board)
JK300
1
2
3
4
PC
VBUS
D-
D+
GND
Signal Name
VBUS Signal
D- Signal
D+ Signal
Ground
Description
1
2
3
4
JK301 (Control Board)
JK301
1
2
3
4
Memory
VBUS
D-
D+
GND
Signal Name
VBUS Signal
D- Signal
D+ Signal
Ground
Description
1
2
CN600 (Sensor Board) - Thermistor
CN600
---
---
Thermistor
RTH
GND
Signal Name
Thermistor Signal
Ground
Description
Click on the first or last page to see other UB-T780 service manuals if exist.