Sharp GX30 Service Manual page 127

32 7 8 6 1
/RST /RST 4
PLL
/CS 29
A0
30
/WR 28
/RD 31
20 ~ 27
D0~D7
/IRQ 3
LED 2 LED control
MTR 19 Vibrator control
NC 5
Timing Generator
FiFO
64 byte
FiFO
Sequencer
512 byte
Buffer
Soft IRQ
TIMER
FM +
Wave Table
R-ch
R-ch
Synthesizer Vol
16-bit
DAC
L-ch
L-ch
Vol
PCM/ADPCM
Play back
VREF
9
Analog power supply
for speaker amplifier
11 10
HP HP
Vol R Vol L
Mono
Select
EQ
12 EQ1
Vol
13
EQ2
VREF
+ -
14 EQ3
SP
Vol
17 SPOUT1
18
SPOUT2
16 15