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1. BLOCK DIAGRAM
AC
Power supply
AC input
transformer
circuit
Power supply line
Signal line
MEASURING PIN POSITION
VSS
3. INK RIBBON REPLACEMENT
1. Remove the paper roll from the calculator. (Tear the paper and
remove it from the print mechanism by using
2. Turn the power off before replacing ribbon.
3. Remove the printer cover by sliding it towards the back of the calcu-
lator. (Fig.1)
4. Remove the old ribbon by pulling it up.
5. Insert the new ribbon.
Display tube
Key
LSI
slide switch
Printer driver
Printer
VF
.)
Fig.1
EL-2631L/2615P BLOCK DIAGRAM
2. POWER VOLTAGE
Measurement position
VF-VF
VSS-VCC
(*1)VL-VPR
Measure with the AC input voltage rating.
(*1): Measurement of VL-VPR voltage must be performed with the
PAPER FEED key being pressed.
VF
VCC
VL
6. With the black side of the ribbon facing upwards, place one of the
reels on the reel shaft on the right. (Fig.2) Make sure that the reel is
securely in place.
7. Thread the ribbon around the outside of the metal guides. (Fig.3)
8. Take up any slack by manually turning one of the reels.
9. Replace the printer cover.
10. Replace the paper roll.
– 2 –
Power voltage
4.2Vac ~ 5.1Vac
5.7V ~ 6.6V
14V ~ 16V
VPR
Fig.2
Fig.3
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