Vref - Denon DVD-3800 Service Manual

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3 7 63 1515 0
4M DRAM (SOJ)-35 (IC507, 509)
IS41C16256
M11B416256A
V
CC 1
I/O0 2
I/O1 3
I/O2 4
I/O3 5
VCC
6
I/O4 7
I/O5
8
I/O6
9
I/O7
10
NC
11
NC
12
WE
13
RAS
14
NC
15
A0
16
A1
17
A2
18
A3
19
VCC
20
SN74AHCT273PW
(MA: IC104, 105, 114)
CLR 1
Q1 2
D1 3
D2 4
Q2
5
Q3
6
D3
7
D4 8
Q4 9
TE
L 13942296513
10
GND
Truth Table
Input
Output
D
CLR CK Q
L X X L
H L L
H
H H
H X Qn
X: Don't Care
BA033LBSG (AV: IC205, 208, 211)
5 4
Vcc
1
TOP
VIEW
CTL 3
1 2 3
GND
2
TC7W32F (MA: IC107)
www
1A
1
1B
2
3
2Y
.
GND 4
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40 GND
Terminal Function
39
I/O15
38
I/O14
Name
Function
37
I/O13
A0-A8 Address Inputs
36 I/O12
I/O0-15 Data Inputs/Outputs
35
GND
Write Enable
WE
34
I/O11
Output Enable
OE
33 I/O10
Row Address Strobe
RAS
32
I/O9
Upper Column Address Strobe
UCAS
31 I/O8
LCAS Lower Column Address Strobe
30 NC Power
Vcc
Ground
GND
29 LCAS
NC No Connection
28 UCAS
27 OE
26 A8
A7
25
24 A6
A5
23
22 A4
21 GND
S-24C02BFJ-TB (MA: IC106)
20 Vcc
19 Q8
18 D8
17 D7 NC
16 Q7
GND
15 Q6
14 D6
D5
13
Terminal Function
12 Q5
11 CK
Pin No.
1
2
3
Function
4
5
Clear
¾
6
¾ 7
8
No change
Terminal Function
Pin No.

Vref

5 OUT
4
C
Over current protection
Over temperature protection
TC7W14F (MA: IC111, 115, 116)
Vcc
8
1A
x ao
1Y
7 3Y
y
2A
6
2B
i
GND
5 2A
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8
AT49LV1025 (MA: IC202)
I/O12 7
I/O11 8
I/O10 9
I/O9 10
I/O8 11
GND 12
NC 13
I/O7 14
I/O6 15
I/O5 16
I/O4 17
A0 1 8 Vcc
2 7
A1 TEST/WP
3 6
SCL
4 5 SDA
Q Q
3 6 7 1 3
Name Function
A0 Address input
A1 Address input
Address input
A2
GND GND
SDA Serial data input/output
SCL Serial clock input
Test, connect to GND
TEST/WP
Vcc Power supply
Name Function
1 Vcc Power
2 GND Ground
3 Power Save
CTL
4 C Ripple Improve
5
OUT Output
Vcc
1 8
u163
2 7 1Y
3 6 3A
.
4 5 2Y
2 9 9 4 2 8
Terminal Function
39 A13
Pin Name
38 A12
A0-A15 Address Inputs
37 A11
CE Chip Enable
36 A10
Output Enable
35 A9 OE
34 GND WE Write Enable
33 NC
I/O0-I/O15 Data Inputs/Outputs
32 A8
No Connection
NC
31 A7
30 A6
29 A5
TC74VHC157A (MA: IC113)
SELECT
1 16
1A 2 15
1B 3
14
4
1Y 13
2A 5 12
2B
6 11
2Y 10
7
GND 8 9
TOP VIEW
1 5 0 5 8 2 9 9 4
Terminal Function
INPUTS
ST SELECT A B
H X X X
L L
L X
L H
L X
H X
L L
H X
L H
X: Don't Care
TC4W53F (SC: IC855)
(Europe model only)
TOP VIEW
COM 1 8
NH
2 7
V 3 6
EE
GND 4 5
MN1382-S (MA: IC203)
TOP VIEW
m
OUT
1
co
2
V
3
SS
DVD-3800
9 9
Function
Vcc
ST
4A
4B
4Y
3A
3B
3Y
2 8 9 9
OUTPUTS
Y
L
L
H
L
H
V
CC
ch0
ch1
ADR
V
DD
47