Appendix 3. Printed Board Diagram; Main Board - Fuji Electric ZPA Service Manual

APPENDIX 3. PRINTED BOARD DIAGRAM

Main board

JP3
(O sensor gain switchover)
2
5 3 1
6 4 2
External zirconia type O
Built-in paramagnetic type O
External input type O
CN16
(O sensor input)
2
CN14
(Optical unit 2-1)
CN15
(Optical unit 2-2)
TPG1
(0V)
(Analog ground)
Common with TPVS 1
CN8
(To AIO board)
TN5A1191-E
/ built-in galvanic cell type O
2
2
2
TP3
(AD integral waveform)
CN12
(Optical unit 1-1)
TPN15
(-15V)
(Analog)
CN13
(Optical unit 1-2)
LED4
(Power supply check)
Green lighting: normal
CN2 CN9
(LCD back light) (Power supply input)
2
TPVH1
(3.3V)
(Digital)
TP4 TPVL1
(3.3V)
(Backup battery) (Digital)
LED2
(CPU operation check)
Red blinking : normal
TP15
(15V)
(Analog)
CN3
(Key switch signal)
CN5
(Optical unit 1 motor)
TPVS1
(0V)
(1.25V)
(Digital ground)
Common with TPG 1
TPVC1
(Digital)
CN4
(Program boot)
CN1
(LCD signal)
CN7
To Commu board
CN6 TP2
(Optical unit 2 motor) (Motor pulse)
(5V)
A-3