Sony str-da1500es Service Manual page 34

STR-DA1500ES
Q Q
3 7 6 3 1 5 1 5 0
• IC Block Diagrams
IC700 STK350-530T-E (MAIN BOARD) (1/3)
BIAS CIRCUIT
PROTECTOR
PRE PRE
REG DRIVE DRIVE
DRIVE DRIVE
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
IC400 BD3474KS2 (MAIN BOARD) (1/3)
60 59 58 57 56 55 54 53 52 51 50 49
T E
L 1 3 9 4 2 2 9 6 5 1 3
GND 61
FRIN2 62
FLIN2 63
SRIN2 64
SLIN2 65
SWIN2 66
Mode Mode
CIN2 67 Selector Selector
RECR5 68
RECL5 69
GND 70
Rec
RECR1 71
RECL1 72
RECR2 73
RECL2 74
RECR3 75
SW2 C SW1 SL SR
Volume Volume Volume Volume Volume
RECL3 76
RECR4 77
RECL4 78
GND 79
GND 80
Logic
1 2 3 4 5 6 7 8 9 10 11 12
w w w
STR-DA1500ES
48 47 46 45 44 43 42 41
40 INL2
39 INR2
38 INL1
37 INR1
36 GND
35 SUB1L
Mode
34 SUB1R
Selector
33 GND
32 ADCR
31 ADCL
30 GND
29 FRIN1
28 FLIN1
27 SRIN1
26 SLIN1
FL FR
Volume Volume
25 SWIN1
24 CIN1
Tone Tone
23 SW2IN
22 N.C
21 GND
13 14 15 16 17 18 19 20
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IC601 BR24S16FJ-WE2 (MAIN BOARD) (2/3)
16Kbit EEPROM ARRAY
A0 5
11 bit
Address 11 bit
A1 2
Decode
START
A2 3
Control Logic
High Voltage Gen
GND 4
IC100 PT6315 (DISPLAY BOARD)
Q Q
44 43
3 7 6 3
SW1 1
SW2 2
SW3 3
SW4 4
OSC OSC
5
DOUT 6
DIN 7
Serial
interface
CLK 8
9
STB
KEY1 10
u 1 6 3
11
KEY2
.
12 13
34 34
2 4
9 9 8
8 Vcc
8 bit
Slave, Word Data
7 WP
Address Register Register
STOP
6 SCL
ACK
Vcc Level Detect
5 SDA
42 41 40 39 38 37 36 35 34
1 5 1 5 0 8 9 2 4
Grid driver
Multiplexed driver
Command decoder
Display memory
24 bits x 12 words
Timing generator
key scan
Key data memory
(2 x 16 bits)
m
segment driver
c o
14 15 16 17 18 19 20 21 22
2
9 9
9 8 2 9 9
GRID10
33
32 GRID11
SEG17
31
30 VEE
29 SEG16
28 SEG15
27 SEG14
26 SEG13
25 SEG12
24 SEG11
23 SEG10