Sony MHC-V77DW Service Manual page 70

MHC-V77DW
• IC Block Diagrams
IC8001 MX25L3235EM2I-10G (89G BOARD (1/3))
CS 1
Address
Generator
SO/SIO1 2
Data
Register
SRAM
Buffer
WP/SIO2 3
Mode State HV
Logic Machine Generator
Clock Generator
GND 4
IC8005 EM638165TSD-6G (89G BOARD (2/3))
VSS_41 DQ8 VDDQ_43 DQ9 DQ10 VSSQ_46 DQ11 DQ12
41 42 43 44 45 46 47 48
NC/RFU 40
UDQM 39
CLK 38
Clock
Generator
CKE 37
NC 36
Address Row
Address
A11 35 Buffer
Mode
&
Register
Refresh
A9 34 Counter
A8 33
Column
A7 32 Address
Buffer
&
A6 31
Refresh
Counter
A5 30
A4 29
VSS_28 28
27 26 25 24 23 22 21
VDD_27 A3 A2 A1 A0 A10/AP BA1
IC8007 TC7WHU04FK, RSNJ (CT (89G BOARD (2/3))
VCC
1A 1 8
3Y 2 7 1Y
2A 3 6 3A
GND 4
5 2Y
MHC-V77DW
8
VCC
Memory Array
Page Buffer
7 HOLD/ SIO3
Y-Decoder
Sense 6 SCLK
Amplifier
5 SI/SIO0
Output
Buffer
VDDQ_49 DQ13 DQ14 VSSQ_52 DQ15 VSS_54
49 50 51 52 53 54
1 VDD_1
2 DQ0
Bank D
Bank C
3 VDDQ_3
Bank B
4 DQ1
Bank A
5 DQ2
6 VSSQ_6
Sense Amplifier 7 DQ3
Column Decoder 8 DQ4
9 VDDQ_9
Data Control Circuit
10 DQ5
11 DQ6
12 VSSQ_12
13 DQ7
20 19 18 17 16 15 14
BA0 CS RAS CAS WE LDQM VDD_14
IC8400 AM5890S (89G BOARD (3/3))
30 29 28 27 26 25 24 23
Voltage
10K
Detection
MUTE
+
25K
Thermal
Shut down
10K
25K
+
+
10K
1 2 3 4 5 6
IC6202 TH58NVG3S0HTAI0 (BENTEN-MOTHERBOARD BOARD (3/11))
NC_1 1
NC_2 2
NC_3 3
NC_4 4
NC_5 5
NC_6 6
Status register
RY / BY 7
RE 8
Address register
I/O
CE 9
Control circuit
NC_10 10 Command register
NC_11 11
VCC_12 12
VSS_13 13
Logic control Control circuit
NC_14 14
NC_15 15
CLE 16
ALE 17
RY/BY
WE 18
WP 19
NC_20 20
NC_21 21
NC_22 22
NC_23 23
NC_24 24
70 70
22 21 20 19 18 17 16 15
Vcc2
15K
10K
Actuator
- Spindle
Driver (4X) Driver (6X)
Vcc2
Vcc2
Vcc1
-
Sled Actuator
25K
Driver (4X) Driver (6X)
Pre-DRV
TRAY
DRIVER
7 8 9 10 11 12 13 14
48 NC_48
47 NC_47
46 NC_46
45 NC_45
44 I/O8
43 I/O7
42 I/O6
41 I/O5
Column buffer
40 NC_40
Column decoder
Data register 39 NC_39
38 NC_38
Sense amp
37 VCC_37
36 VSS_36
Memory cell array 35 NC_35
34 NC_34
33 NC_33
32 I/O4
HV generator
31 I/O3
30 I/O2
29 I/O1
28 NC_28
27 NC_27
26 NC_26
25 NC_25