3-1
3
Test Program and Power Supply Check
3.1
Voltage checks on the MAIN PWB
1)
Prior to inspection, all loads, such as the LCD unit, HDD, fluorescent display tube, peripheral PWBs, etc., shall be
connected.
2)
For the AC power supplies, each power input shall conform to the requirements of rating.
3)
Voltage values
Item
Measuring point
Standard [V]
Remarks
+3V
CN26_8pin - TP6(GND
+3.3V±0.16
+5V
CN26_18pin -
TP6(GND)
+5.0V±0.25
+5VSB
CN26_1pin - TP6(GND)
+5.0V±0.25
+12V
CN26_4pin TP6(GND)
+12.0±0.6
-12V
CN26_28pin -
TP6(GND)
-12.0±0.6
+15V
CN26_2pin - TP6(GND)
+13.5~20
CORE
JP8 -
TP5(GND)
+1.6±0.13
VCCP
JP7_3pin –
TP4(GND)
+1.8±0.09
+2.5V
JP8_2pin –
TP4(GND)
+2.5±0.12
RTCVCC
TR1(RTCVCC) -
TP4(GND)
+3.0, +0.4, -0.6
Lithium battery (with the power
turned off)
4)
Measurement of currents in the RTC backup circuit
Standard value
2~15µA
Measuring circuit
DC power
supply
+3V
A
Pin 2 of BTI (- terminal side)
Main PWB
Pin 1 of BTI (+ terminal side)
z
The battery shall be disconnected during measurement.
z
Measurement shall be performed with the power supply turned off.
Note) Standard values shall be obtained through measurements at a room temperature.
Summary of Contents for JS-170FR Series
Page 2: ......
Page 10: ......
Page 30: ...1 20 ...
Page 80: ...2 50 ...
Page 101: ...3 17 LCD DISPLAY TEST 6 Video Test ENTER 1 OK or 2 NG ...
Page 134: ...4 JS 170FR PCB s 4 1 Main PCB 4 1 1 Main PCB Schematic Diagram 1 10 4 1 ...
Page 135: ...4 1 1 Main PCB Schematic Diagram 2 10 4 2 ...
Page 136: ...4 1 1 Main PCB Schematic Diagram 3 10 4 3 ...
Page 137: ...4 1 1 Main PCB Schematic Diagram 4 10 4 4 ...
Page 138: ...4 1 1 Main PCB Schematic Diagram 5 10 4 5 ...
Page 139: ...4 1 1 Main PCB Schematic Diagram 6 10 4 6 ...
Page 140: ...4 1 1 Main PCB Schematic Diagram 7 10 4 7 ...
Page 141: ...4 1 1 Main PCB Schematic Diagram 8 10 4 8 ...
Page 142: ...4 1 1 Main PCB Schematic Diagram 9 10 4 9 ...
Page 143: ...4 1 1 Main PCB Schematic Diagram 10 10 4 10 ...
Page 144: ...4 1 2 Main PCB Parts Location 4 11 ...
Page 145: ...4 2 MB PCB 4 2 1 MB PCB Schematic Diagram 4 17 ...
Page 146: ...4 18 4 2 2 MB PCB Parts Location ...
Page 148: ...4 3 Peripheral PCB 4 3 1 Peripheral PCB Schematic Diagram 4 20 ...
Page 149: ...4 21 4 3 2 Peripheral PCB Parts Location ...
Page 152: ...5 2 Main PCB 75 Peripherals ...
Page 153: ...5 3 Power Supply Peripherals ...
Page 154: ...5 4 Customer Display Peripherals ...
Page 155: ...5 5 LCD Peripherals ...
Page 156: ...5 6 Inverter PCB Peripherals ...
Page 161: ...Printed in Japan ...