Instructions

- 11 -
REC
24
PLAY
23
ERASE
25
FWD
26
VOL
19
FT
22
SS
7
SCLK
6
MOSI
5
MISO
4
MIC+
10
MIC-
11
AnaIn
9
Rosc
20
AGC
18
RESET
3
LED
2
VCCD
1
VSSD
28
VCCA
21
VSSA
8
VCCP
14
VSSP1
16
VSSP2
12
SP+
15
SP-
13
AUD/AUX
17
INT/RDY
27
IC1
ISD1700
SW1
SW2
SW3
SW4
R1
4K7
R2
4K7
S
MIC M300
C12
4μ7
GND
C3
100n
C4
100n
C11
4μ7
GND
GND
LD2
PLY/REC
R5
1K
GND
C6
100n
C7
100n
C8
100n
GND
GND
GND
VCC
C5
100n
GND
R7
47K
R6
100K
R8
390
GND
C13
4
μ7
SK4
line out.
GND
3
2
5
7
6
4
8
1
IC2
LM386N
RV2
10K
GND GND
C14
220μ
SK5
SPEAKER
GND
C9
100n
GND
RV1
100K
GND
R9
10
C10
47n
GND
GND
SW
-
+
SK1
12DC REG.
C16
220μ
GND
D1
1N4007
I
O
G
N
D
VR1
UA78L05
C1
100n
C2
100n
GNDGND GND
VCC
LD1
POWER
R4
1K
GND
GND
R3
4K7
SK3
line in.
1 2
3
4
5
6
SK2
external control
R10
10K
JP1
Feed-through
GND
VCC
Diagram
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