Casio CTK-1100 Service Manual & Parts Manual page 29

Sub PCB: M820-PSA1
LEFT SPEAKER
(to BATTERY)
(to LEFT SPEAKER)
BATTERY
DC 9 V IN
POWER/MODE
SWITCH
(SW201)
VOLUME
(SW202)
PHONES/OUTPUT
(J201) (J202)
– 27 –
CTK-1100
(to MDA1/CN6)
(to MDA1/CN7)
(to MDA1/C3)
: Not used