Yamaha dsp-ax3800 Service Manual page 142

A B C
RX-V3800/DSP-AX3800
NET 1/2
1
RESET CIRCUIT
3.3
3.3
2
IC601 3.3
IC602
3.3 3.3
0
0
3.3
0
0
0
IC602 IC614 IC602
3.3
3.3 3.3
0 0
3
3.3
IC614
IC602
0 0
3.3 3.3
3.3 3.3 3.3
IC614
0 0
3.3 3.3
4
REGULATOR
IC604
3.3 1.8
5
1.8
IC605
0
6
CB601
7
8
POINT A-3 Pin 2 of IC605 POINT B-1 Pin 118 of IC610
9
# All voltages are measured with a 10MΩ/V DC electronic voltmeter.
# Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
# Schematic diagram is subject to change without notice.
10
142
D E F
11.8 ~ 0
11.8
11.7 1.7
3.3
3.3
~ 0
IC602
0
3.2
0
IC602
0.1
3.3
3.3
3.3
3.3
0
3.3
3.3
0.1
B-1
0
0
0.8
MICROPROCESSOR
0.8
1.8
1.9
0
3.3
3.3
3.2
3.3
0
1.8
0
3.3
A-3
0.8
3.3
0.9 0.9
0
1.7
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
0
3.3
3.3
3.3
3.3
3.3
IC614
5.0 3.3
5.0 3.3
5.0 3.3
5.0
3.3
3.3 5.0
0
5.0
IC609
POWER DISTRIBUTION
SWITCH for USB
IC602: SN74LVC14APWR
IC601: BD4830FVE-TR
Hex schmitt trigger inverters
Voltage detector IC
V
DD
1A 1 14 VCC
5
1Y 2 13 6A
Vout
1
2A 3 12 6Y
–
2Y 4 11 5A
+
Vref
3A 5 10 5Y
SUB
2
3Y 6 9 4A
GND 7 8 4Y
4 3
GND N.C.
G H
0
3.3
0.1
0.2
0.1
0.1
0.1
0.7
0
3.3
0.1
0.1
0.1
0.1
(NET)
0.1
0
1.9
IC610 0.2
0.1
0.1
0.1
0.1
0
3.3
0.1
3.3
3.3
3.3
3.3
0
3.3
3.3
3.3
0
1.9
1.6
0
3.3
3.1
3.1
3.1
3.1
3.1
W603 Page 124
to DSP_CB531
Page 130 J5
to OPERATION (7)_CB814
IC609: MIC2026-2BM
IC604: PQ018EZ01ZP
Dual-channel power distribution switch
Voltage regulator
2 FLGA
DC input DC output
1 3
(Vin) (Vo)
FLAG
RESPONSE
DELAY 8 OUTA
IC ENA 1
ON/OFF control CHARGE GATE
2 PUMP CONTROL
(Vc)
CURRENT
5 LIMIT
GND
THERMAL THERMAL 1.2V
OSC. 7 IN
SHUTDOWN SHUTDOWN REFERENCE
IC605: SN74LVC1GU04DCKR
CHARGE CURRENT
PUMP
LIMIT
GATE
Single inverter
CONTROL
ENB 4
FLAG
5 OUTB
RESPONSE
NC 1 5 V DELAY
CC
3 FLGB
A 2
6
GND 3 4 Y
GND
I J K
No replacement part available.
128 M-bit SDRAM
3.3 0
1.2 0.2
3.3
0
0.1
0.2
0.1 0.2
0 3.3
0.1 0.1
0.1 0.1
3.3
0
0.1 0.7
1.3 0.1
0 3.3
0.2 0.2
3.3 0
3.3
3.3
3.3
3.3 1.6
3.3 3.3
3.3
0.1 0.1
0.1 0.1
0.1 0.1
0.1
0.1
0.1 0.1
0.1 0.1
0.1 0.1
3.3 0
32 M-bit FRASH-ROM
3.3 3.3 3.3
3.3 3.3
3.3
1.7 0.3 1.7 1.7
0.1
0 0 1.7 0.1
0 0 3.3 0.1
0 0
2.2 1.7 3.3
0 0 1.7 1.7 0.1
3.3
0.3 0.3 0.3 0
3.3
0 3.3 0
3.3
LOGIC for AUDIO CLOCK
W605
J1
IC610: EP9301-CQZ
System on chip processor
Serial
Audio
Peripheral Bus
Interface
Clocks &
Timers
(2) UARTs 12 Channel DMA
ARM920T
w/
Interrupts
IrDA
D-Cache I-Cache & GPIO
TM 16KB 16KB
MaverickKey
(2) USB
MMU
Hosts Bus Bridge
Processor Bus
ENA 1 8 OUTA
FLGA 2 7 IN
Ethernet
Boot SRAM & Unified
FLGB 3 6 GND
MAC ROM Flash I/F SDRAM I/F
ENB 4 5 OUTB
MEMORY AND STORAGE
L M N
IC611: K4S281632I-UC75000
128 M synchronous DRAM
LWE
Data Input Register
LDQM
Bank Select V DD 1 54 V SS
DQ0 2 53 DQ15
V DDQ 3 52 V SSQ
8M x 4 / 4M x 8 / 2M x 16 DQ1 4 51 DQ14
DQ2 5 50 DQ13
8M x 4 / 4M x 8 / 2M x 16 V 6 49 V
SSQ DDQ
DQi DQ3 7 DQ12
48
8M x 4 / 4M x 8 / 2M x 16
DQ4 8 47 DQ11
CLK V DDQ 9 46 V SSQ
8M x 4 / 4M x 8 / 2M x 16
DQ5 10 45 DQ10
DQ6 11 44 DQ9
ADD V 12 43 V
SSQ DDQ
DQ7 13 42 DQ8
Column Decoder
V V
DD 14 41 SS
LDQM 15 40 N.C/RFU
Latency & Burst Length WE 16 39 UDQM
CAS 17 38 CLK
RAS 18 37 CKE
CS 19 36 N.C
LCKE Programming Register
BA0 20 35 A11
BA1 A9
LRAS LCBR LWE LCAS LWCBR LDQM 21 34
A10/AP1 22 33 A8
A0 23 32 A7
A1 24 31 A6
Timing Register
A2 25 30 A5
A3 26 29 A4
V 27 28 V
DD SS
CLK CKE CS RAS CAS WE L(U)DQM
IC613: MX29LV320CBTC-90G
32 M-bits single voltage 3 V only flash memory
サービス部品供給なし
WRITE
CE#
CONTROL PROGRAM/ERASE
OE# STATE
WE# INPUT
HIGH VOLTAGE
MACHINE
RESET# LOGIC
(WSM)
BYTE#
0
0.1 0.1
3.3
0.1
0.1 0 STATE
0.1 0.2
ADDRESS FLASH REGISTER
0.1 0.2 ARRAY
LATCH
0.1 0.1
A0-A20 ARRAY
AND
0.1 1.3 SOURCE
HV
0.1 0.2 BUFFER
Y-PASS GATE
COMMAND
0.1 0.1
DATA
3.3 0.1
DECODER
3.3 3.3
0.1
3.3
0.1 SENSE PGM
AMPLIFIER DATA
0.7 HV
COMMAND
0.1 0.1
DATA LATCH
0.1 0.1
0.4 0.2 PROGRAM
DATA LATCH
0.1 0.2
0.1 1.2
0.1 3.3
0.1 0 Q0-Q15/A-1 I/O BUFFER
0.1 3.3
0.1 0.1
A15 1 48 A16
A14 2 47 BYTE#
A13 3 46 GND
A12 4 45 Q15/A-1
A11 5 44 Q7
A10 6 43 Q14
A9 7 42 Q6
A8 8 41 Q13
A19 9 40 Q5
A20 10 39 Q12
WE# 11 38 Q4
RESET# 12 37 VCC
MX29LV320C/B
NC 13 36 Q11
WP#/ACC 14 35 Q3
RY/BY# 15 34 Q10
A18 16 33 Q2
A17 17 32 Q9
A7 18 31 Q1
A6 19 30 Q8
A5 20 29 Q0
A4 21 28 OE#
A3 22 27 GND
A2 23 26 CE#
A1 24 25 A0
IC614: 74LCX07MTCX
Low voltage hex buffer with open drain outputs
A0 1 14 VCC
O0 2 13 A3
A1 3 12
O3
O1 4 11
A4
A2 5 10
O4
O2 6 9 A5
GND 7 8 O5
to NET 2/2
IC617: SN74LV74APWR
Dual positive edge triggered D-type flip flop
1CLR 1 14 Vcc
1D 2 13 2CLR
1CLK 3 12 2D
1PRE 4 11 2CLK
1Q 5 10 2PRE
1Q 6 9 2Q
GND 7 8 2Q
IC615, 616: SN74LV163APWR
4-bit synchronous binary counters
LOAD 9
ENT 10
RCO
15
LD
ENP 7
CK
CLK 2
CK LD
CLR 1
R
M1
G2
1,2T/1C3
QA
14
G4
A 3 3D
4R
M1
G2
1,2T/1C3
13 QB
G4
B 4
3D
4R
M1
G2
1,2T/1C3
12 QC
G4
C
5 3D
4R
CLR 1 16 VCC
CLK 2 15 ROC
M1
A 3 14 QA
G2
B 4 13 QB
1,2T/1C3
C 5 12
11 QD QC
G4
D 6 11 QD
D
6 3D
ENP 7 10 ENT
4R GND 8 9 LOAD