Yamaha RX-Z11 Service Manual page 179

A B C
DVIDEO 4/4
1
C-2
2
IC824
3.3
1.7
1.7
1.7 1.7
1.7 1.7
0
3
4
3.3 0
3.3 0
3.3 0
IC834
3.3 0
0
3.3 0
3.3 0
0
3.3
3.3 0
3.3 0
3.3 0
0
5
3.3 0
3.3 0
0
3.3
3.3 0
0
FPGA
3.3
0
3.3 0
3.3 0
0
3.3
3.3 0
3.3 0
0
1.3 0
1.3 0
1.3
0
1.3
1.3 0
1.3
0
1.3
1.2 0
0
1.3
1.2 0
6
No replacement part available.
7
8
IC824: TC7WZ04FK IC837: R1172S121D-E2-F
IC835, 836: R1172S181B-E2-F
Voltage regulator
Triple inverter Voltage regulator
1A 1 8 V
CC V V
DD 6 1 OUT
V DD 6
3Y 1Y
2 7
2A 3 6 3A
GND 4 5 2Y
Vref
Current Limit
CE 3 2,5 GND
CE
3
Pin No. Symbol Description
Pin No.
1 V OUT Output Pin of Voltage Regulator
9 1
2, 5 GND Ground Pin
2, 5
3 CE Chip Enable Pin
3
4 NC No Connection
4
6 V DD Input Pin
6
10
D E F
3.3
IC844
1.8 2.8
1.8 2.8
1.8 3.3
0
0
3.3
IC834
IC834
FPGA FPGA
No replacement part available.
IC838, 839, 844: R1171J331D-T1-F IC840: R1172S251B-E2-F
Voltage regulator Voltage regulator
V DD 5 1 V OUT V DD 6 1
1 V OUT
3 GND
Vref Vref
Vref
Current Limit
Current Limit Current Limit
CE 3 2,5
GND CE 2 4 GND
2,5
Pin No. Symbol Description
Pin No. Symbol Description
Symbol Description
1 V OUT Output Pin of Voltage Regulator 1 V OUT Output Pin of Voltage Regulator
VOUT Output Pin of Voltage Regulator
2, 5
2 CE Chip Enable Pin GND Ground Pin
GND Ground Pin
3 GND Ground Pin 3 CE Chip Enable Pin
CE Chip Enable Pin
NC No Connection
4 GND Ground Pin 4
NC No Connection
6 V DD Input Pin
VDD Input Pin 5 V DD Input Pin
G H
3.3 4.2
4.2
IC838 0
4.2
DVIDEO (2)
0
0
3.3 4.2
IC839 0
3.3
0
0
2.5 4.2
2.5 IC840 4.2
2.5 3.3
0 0 3.3
0
3.3
0
1.8 2.8
1.8 IC841 2.8
1.8 3.3
0 0 3.3
0
3.3
0
1.8 2.7
1.8 IC842 2.7
1.8 3.3
0 0 3.3
0
3.3
0
1.8 2.8
5.0
1.8 2.8
IC835
1.8 3.3 5.0
0 0
0
3.3
1.8 2.8
1.8 IC836 2.8
1.8 3.3
0
0
3.3
1.3 2.8
1.3 IC837 2.8
1.3 3.3
0 0
3.3
POINT C-2 XL804 (Pin 1 of IC824)
IC901: CXB1442AR-T4
IC841-843: R1172S181B-E2-F
Cable equalizer with 2-system switching function
Voltage regulator
V OUT
V V Termination
DD 6 1 OUT
resistor
ADTnP
ADTnN
Vref
GND Current Limit
CE 3 2,5 GND BDTnP
BDTnN
EQ inputs
Pin No. Symbol Description
1 V OUT Output Pin of Voltage Regulator
2, 5 GND Ground Pin
ACKP
3 CE Chip Enable Pin
ACKN
4 NC No Connection
6 V DD Input Pin
BCKP
BCKN
SEL
CMOS inputs Control Logic
CE
I J K
HDMI IN
CB901
0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0
HDMI EQ
0 0
3.3 3.3
0
0
0 0
IC901
0
0
0
0
0
0
3.3 3.3
0 0.1
CB902
Page 178 B2
to DVIDEO (1)_CB806
IC902: PCA9517DP
2
Level translating I C-bus repeater
V V CCB
CCA
n= 0, 1, 2
1 8
Input switching
circuit
SDAA 3
Quantizer
Output buffer
Equalizer YDTnP
YDTnN
SCLA 2
V
CCB
Output
Termination pull-up
Detector resistor
EN 5
4
EQ outputs
GND
Input switching
circuit
V CCA 1 8 V CCB
SCLA 2 7 SCLB
Quantizer
Output buffer 36 35 34 33 32 31 30 29 28 27 26 25
SDAA 3 6 SDAB
Equalizer YCKP Vcc 37 24 YCKN
GND 4 5 EN
YCKN Vcc 38 23 YCKP
ADT2N GND
39 22
ADT2P 40 21 YDT0N
Output
Termination GND 41 20 YDT0P
Detector
Vcc 42 19 Vcc
Vcc 43 18 Vcc
Clock Output Current
GND 44 YDT1N
Detector Control Circuit REXT 17
BCKN 45 16 YDT1P
BCKP 46 15 GND
Vcc 47 14 YDT2N
Vcc 48 13 YDT2P
1 2 3 4 5 6 7 8 9 10 11 12
# 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.
L M N
RX-Z11/DSP-Z11
USB (Front)
CB903
CB904
Page 172 N8
to SUBCPU (7)_CB997
0 0
0 0
0 0
Page 172 N9
to SUBCPU (7)_CB998
CB905
IC902
3.3 4.2
4.2
3.3 IC903
0 0
4.2
IC903: R1172S331B-E2-F
CMOS-based positive-voltage regulator IC
V DD 6 1 V OUT
6 SDAB
Vref
7 SCLB
Current Limit
CE GND
3 2,5
Pin No. Symbol Description
1 V Output Pin of Voltage Regulator
OUT
2, 5 GND Ground Pin
3 CE Chip Enable Pin
4 NC No Connection
6 V Input Pin
DD
179