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IC281
µPC1237HA (MAIN BOARD)
1
2
3
4
5
6
7
8
OVER LOAD DET
F/F
OFFSET DET
LATCH/
AUTORESET
V
CC
ON
MUTE
AC OFF
DET
V
CC
IC602
µPC1330HA (AUDIO BOARD)
1
2
3
4
5
6
7
8
9
INVERTER
COMPARATER
SW R1
GND
SW P1 CONT
GND
VCC
SW P2 GND
SW R2
IC701
M54641L
(MOTOR (TURN) BOARD)
REG
CONTROL
INPUT
AMP.
INPUT
AMP.
1
2
3
4
5
6
7
8
POWER AMP.
POWER AMP.
VCC
OUT1
IN2
REFERENCE
GND
IN1
OUT2
VCC
IC751
M65850P (HP/MIC BOARD)
OSCILLATOR
1/2 VCC
AUTO
RESET
LPF1
MAIN
CONTROL
A/D
20KBIT
SRAM
LPF2
D/A
1
2
3
4
5
6
7
8
9
10
14
13
12
11
CLOCK
RESET
MO
MI
D1
DO0
DO1
VCC
CLOCK
REF
OP2IN
OP2OUT
LPF2IN
LPF2OUT
LPF1IN
LPF1OUT
OP1OUT
OP1IN
CC1
CC2
GND
IC801
BA6286N
(MOTOR (SLIDE) BOARD)
POWER
SAVE
CONTROL
LOGIC
TSD
1
2
3
4
5
6
7
8
9
10
GND
RIN
VREF
OUT2
RNF
GND
OUT1
VM
VCC
FIN
Summary of Contents for HCD-GR8
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