Philips PM2519 - 3.5. ADJUSTING THE BATTERY POWER SUPPLY PM 2519;21

3.5.
3-13
ADJUSTING THE BATTERY POWER SUPPLY PM 2519/21
— Disconnect the battery power supply from the PM 2519/21.
— Remove the battery.
— In its place, fit a 1 kQ resistor across the battery terminals of the power supply unit.
— Connect a voltage of +10 V (20 mA} across point 10(+) and 8(—) of the printed circuit board.
With the preset R105, adjust the voltage across the external 1 kQ) resistor to 6.9 V.
Connect the PM 2519/21 to the mains and check if the charging current is between 5 mA and 400 mA.
(Insert an Ammeter in series with the battery, range 1 A).
BATTERY
ST4419
840713