Ic Block Diagrams - Sony HCD-GRX80 Service Manual

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7-24. IC BLOCK DIAGRAMS

• PANEL (1/3) section
IC603 BA3830F
REFFERENCE
R02
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
TE
L 13942296513
• PANEL (2/3) section
IC605 MSM6654A-540GS-K
A2 15
A1
14
ADDRESS
A0 13
&
12
SW3
SWITCHING
CONTROLLER
11
SW2
10
SW1
SW0 9
TEST 16
RANDOM
RND
8
CIRCUIT
I/O
BUSY 20
INTERFACE
OSC1 2
OSC
3
OSC2
(XT/CR)
5
OSC3
22
XT/CR
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RESET 18 RESET
17 f01
DET
BPF
16 f02
BPF DET
15 f03
BPF DET
14 f04
BPF DET
DET
BPF
13 f05
DET
BPF
12 f06
DET
11 REC
LEVEL
10 VCC
1M BIT ROM
7
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
GND
VDD
RESET
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2 9
8
• PANEL (3/3) section
IC604 NJU3716M
DATA 13
CLK 14
Q Q
3 6 7 STB 15 1 3 1 5
CLR
16
8
ADPCM
SYNTHESIZER
PCM
SYNTHESIZER
12
12 BIT
DAC
LPF
23
AOUT
co
.
– 69 –
9 4 2 8
0 5 8 2 9 9 4 2 8
CONTROL
m
9 9
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
9 9