Onkyo HTR-550 Service Manual page 22

A B
SCHEMATIC DIAGRAMS-5
VIDEO SECTION
NAVD-9178(1/2) U12
VIDEO & SPEAKER
1
TERMINAL PC BOARD
D4028
1SS352
D4029
1SS352
P4001 PR_IN3
C4001
6 PRIN3
CR/PR
10/50
R4001
75
PB_IN3
C4002
7 PBIN3
CB/PB
10/50
R4002
75
CY_IN3
C4003
8 CYIN3
Y
10/50
R4003
5
75
C4019
103K
C4211
P4001 102K PR_IN2
C4004
2 PRIN2
CR/PR
10/50
R4004
75
PB_IN2
2
3 C4005 PBIN2
CB/PB
10/50
R4005
75
CY_IN2
C4006
4 CYIN2
Y
10/50
R4006
1
75
P4002 PR_IN1
C4007
6 PRIN1
CR/PR
10/50
R4007
75
PB_IN1
7 C4008 PBIN1
CB/PB
10/50
R4008
75
CY_IN1
C4009
8 CYIN1
Y 10/50
R4009
5
75
C4013
103K
C4212
P4002
102K
R4201
2 PROUT
CR/PR
C4158 75
470
3
R4202
3 PBOUT
CB/PB
C4159 75
470
R4203
4 CYOUT
Y
75
C4160
1
470
NC
C4010
CIN_V3
P4003 C Y 104Z
C4011
4 3 YIN_V3
2 1
10/50
7 C4012 VIN_V3
10/50
6
C4014
102K
S VIDEO VIDEO
C4016
4 CIN_V2
C Y
P4004 104Z
C4017
1 4 YIN_V2
CBL/SAT 2 5 10/50
C4018
6 VIN_V2
10/50
R4019
COUT_V1
C Y R4020
75
8 11 75 YOUT_V1
9 12
R4021
75
OUT 13 VOUT_V1
C4015
VCR/DVR 15
C4022 CIN_V1
102K
P4006 C Y 104Z
C4023
4 3 YIN_V1
IN 2 1 10/50
C4024
7 VIN_V1
10/50
6 C4021
C4025
102K CIN_DVD
P4005 104Z
C Y
C4026
1 4 YIN_DVD
DVD IN 2 5 10/50
5
C4027
6 VIN_DVD
10/50
R4028 C4110
C Y
104Z
R4029 75
8 11
MONITOR 9 12 R4030 75
75
13
OUT
15 C4020
102K
C
NC
P4007A
NC
C4135
104Z
C4103
ADINPB PBOUT2
PBOUT C4104 220/6.3
220/6.3
C4154
221J
C4105
C4106
ADINPY CYOUT2 22/50
C4107 C4155
220/6.3
CYOUT 22/50
221J
C4108
C4123
220/6.3
TP411
47/25
C4111
C4112
104Z
104Z
R4160
C4114 75
TP410
470/6.3
C4116
R4161
470/6.3
C4118
75
470/6.3
C4124
47/25
C4125
104Z
NC
C4168
221J
R4137
Q4005
NJM2585M
10K
R4138
VIDEO AMP.
10K
CYIN1 1 24
CH1 IN1 CH1 OUT
2 23
SW1 PS
CYIN2 3 22
CH1 IN2 CH2 OUT
4 21
SW2 VDD2
CYIN3 5 20
CH1 IN3 CH3 OUT
6 19
GND GND
7 18
VDD1 GND
PBIN1 8 17
CH2 IN1 CH3 IN1
9 16
GND GND
PBIN2 10 15
CH2 IN2 CH3 IN2
11 14
GND GND
PBIN3 12 13
CH2 IN3 CH3 IN3
PRIN3
PRIN2
PRIN1
NC
COUT_MON
YOUT_MON
VOUT_MON
D E
To NADG-9177
(SD-3 : D1)
P2004B
GND_VD
C4149
104Z
C4148
104Z
VMUT
R4141 0
JPRIN
PRIN_DAC DACPR
PBIN_DAC DACPB
R4142 0 JPBIN
C4244 104Z
C4243 104Z
C4166 NC
R4143 NC
R4144 NC
R4153 0
41 24 PBIN1
PBOUT2 PB1
42 23 R4140 0 JCYIN
PBOUT1 CY6
43 22 C4242
GND2 CY5
44 21 104Z DACPY CYIN_DAC
CYOUT3-FB CY4
R4152 0
45 20 CYIN3
CYOUT3 CY3
R4151 0
46 19 CYIN2
CYOUT2-FB CY2
47 18 R4150 0 CYIN1
CYOUT2 CY1
C4136 22/50
48 17
COUT4 BIAS
49 16 C4150 104Z
VCC2 C8
50 15 DACSC CIN_DAC
COUT3 C7
C4137 104Z
51 14
Q4002
COUT2 C6
52 13
COUT1 GND1
AN-15881A-VT
53 12 CIN_V4
GND3 C5
54 11 CIN_V3
YOUT4-FB C4
55 VIDEO SWITCH 10 CIN_V2
YOUT4 C3
56 9 CIN_V1
YOUT3-FB C2
57 8 CIN_DVD
YOUT3 C1
58 7 C4138 104Z
YOUT2-FB VCC1
C4139
59 6
YOUT2 Y8
104Z
60 5 DACSY YIN_DAC
YOUT1 Y7
61 4 C4140
VCC3 Y6
62 3 104Z YIN_V4
VOUT4-FB Y5
63 2 YIN_V3
VOUT4 Y4
64 1 YIN_V2
SDA Y3
YOUT_SDET
+5.3V C4141
47/25
+5.3V_VDD
R4162
TP407 SCL
75
TP406 SDA
*
F G
To NADG-9177
NC (SD-3 : E1)
NC
JL6017A NC
P2006B JL6016A
NC
+10VDSP
R9107
0
To NAVD-9178(2/2)
(SD-6 : E2)
R9105
0
R9106
0
R9103
100
1
F-CTRL : L HI-SPEED 2
FANH : L Q9102
RN1402
F-CTRL : L LOW-SPEED
FANH : H
F-CTRL: H STOP
1
Q9103
FANH : H
RN1402 2
NC
NC
+5.3V_VDD
Q4012
2SA1162-GR
1 1
C4102
D4002
104Z 1SS352
NOTE
THE COMPONENTS IDENTIFIED BY MARK
NC
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER)
VOUT ADINCV 1 ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
GND_VD 2
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
YOUT ADINSY 3
GND_VD 4 ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
COUT ADINSC 5
ELECTROLYTIC CAPACITORS (
R4225 GND_VD 6
0 ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
CYOUT2 ADINPY 7
R4221 GND_VD 8
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
0
PBOUT2 ADINPB 9
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
GND_VD 10
R4145
0
PROUT2 ADINPR 11 THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
GND_VD 12
EX)
CYIN_DAC DACPY 13
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
GND_VD 14
PBIN_DAC DACPB 15
GND_VD 16 <Note>
PRIN_DAC DACPR 17
NC = No mount of parts.
GND_VD 18
YIN_DAC DACSY 19
SD-Z : XY
GND_VD 20
Location of connected terminal in schematic diagrams.
CIN_DAC DACSC 21
SD-Z = Schematic diagrams-Z. X = A to H, Y = 1 to 5.
GND_VD 22
VIN_DAC DACCV 23
HT-R550
H
! ARE CRITICAL FOR SAFETY
IS DC VOLTAGE.(NO INPUT SIGNAL).
) ARE IN uF/WV.
PRINTING SIDE