Ic Block Diagrams - Sony HCD-GRX80 Service Manual

7-24. IC BLOCK DIAGRAMS

• PANEL (1/3) section
IC603 BA3830F
R02 REFFERENCE
1
CURRENT
REFFERENCE
P01
2
CURRENT
LINE
3
NF
LINE
4
IN
REC 5
NF
REC 6
IN
RESET 7
C
BIAS 8
Bias
C
GND1 9
• PANEL (2/3) section
IC605 MSM6654A-540GS-K
A2 15
A1
14
ADDRESS
13
A0
7
&
SW3 12
SWITCHING
CONTROLLER
11
SW2
SW1 10
SW0 9
TEST 16
RANDOM
RND 8
CIRCUIT
I/O
BUSY
20
INTERFACE
OSC1 2
OSC
OSC2 3
(XT/CR)
5
OSC3
22
XT/CR
RESET 18 RESET
17 f01
DET
BPF
16 f02
BPF DET
15 f03
DET
BPF
14 f04
BPF DET
DET
BPF
13 f05
BPF DET
12 f06
DET
11 REC
LEVEL
10 VCC
1M BIT ROM
17 STAGE (MSM6654A) EDITING ROM &
MULTIPLEXER ADDRESS ROM
CONTAINS 22KBIT
DATA
CONTROLLER
17 STAGE (MSM6654A)
ADDRESS COUNTTER
MELODY
GENERATOR
TIMING CONTROLLER
BEEP TONE
GENERATOR
17 1 24
VDD GND
RESET
• PANEL (3/3) section
IC604 NJU3716M
DATA 13
CLK 14
STB
15
CONTROL
CLR
16
8
ADPCM
SYNTHESIZER
PCM
SYNTHESIZER
12
12 BIT
DAC
LPF
23
AOUT
– 69 –
17 P1
19
P2
20 P3
21 P4
22 P5
23 P6
1 P7
2 P8
3 P9
4 P10
5
P11
7 P12
8
P13
9 P14
10 P15
11 P16
12 SO