usually best to stay with orig numbers as much as possible.
looking at the pinouts , they do match with modification. so, it may work in a pinch .
pin 1 and 9 are not used on the upc1488h Vcc 26v
upc1378 Vcc 24v start pin 1 in the hole of orig IC
la7831 can sub the upc1378 cut pins 1,2 and 9
the 2 volt ratings difference might be a problem for long term use..... ?
be sure to check Vcc supply. may also have open fused resistor/shorted diode