8.2.
POWER SUPPLY/ RF SECTION IN MAIN SCHEMATIC DIAGRAM
NV-HS880EG/B/EC/EE
POWER SUPPLY/RF SECTION SCHEMATIC DIAGRAM
H
L
H
H
H
L
4.2
3.3
4.8
S
(EG)
10K
R7614
560
R7613
MA165
D7602
SW 12V
S
REG 3.3V
V
MA165
D1010
MA4033H
D1009
6V47
C1028
(3.3V REG)
2SC1959Y
Q1012
1K
R1004
0.1
C1027
11ES1
D1004
11ES1
D1008
MA165
D7603
(EG)
SW2
SW1
(EE)
0.1
C7615
A10
(EE)
MA4300M
D7601
L7608 0
A13
R7603 100
R7607 0
AUDIO OUT
2
0
R7604
2200
R7655
(B/EC/EE)
0.1
C7652
A10
SW2
S
S
S
150
R1022
10K
R1002
8
POWER SAVE
6.2
5.7
5.1
12.4
0.7
0
6.2
5.7
5.1
5.9
5.1
6.2
4.9
5.6
9.3
15.5
11.8
2.5
5.8
6.2
5.8
5.1
6.0
5.8
5.1
5.8
5.1
6.0
37.7
38.4
38.4
0
12.9
12.9
15.5
12.3
0
5.2
5.2
(FIP :ON)
5.2
-30.0
-30.0
-16.3
-17.0
-17.0
AUDIO MAIN SIGNAL PATH IN PLAYBACK MODE
AUDIO MAIN SIGNAL PATH IN REC MODE
VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE
VIDEO MAIN SIGNAL PATH IN REC MODE
100
R7616
100
R7615
2.2u:B/EC/EE
0:EG
L7607
A3
A4
A5
PK7302(C-1):B/EC/EE
TO NICAM DECODER PACK
PK7302(D-1):EG
TO DECODER PACK
TUNER AUDIO (L)
GND
TUNER AUDIO (R)
OSD IIC DATA
OSD IIC CLOCK
6
5
4
3
2
1
PK7302
A6
A7
PK7301(D-1):B/EC/EE
TO NICAM DECODER PACK
PK7301(F-1):EG
TO DECODER PACK
TUNER 5V
TUNER AUDIO (N)
GND
SIF/QPSK
PK7301
7
6
5
4
3
2
1
(MUTE)
2SD601A
Q7601
A8
A9
150
R7608
150
R7612
PACK PK0701(D-1)
TO TV DEMODULATOR
DU7601
27
26
25
24
23
22
21
20
19
PK0701-9
PK0701-8
PK0701-7
PK0701-6
PK0701-5
PK0701-4
PK0701-3
PK0701-2
PK0701-1
GND
TUNER 5V
TUNER VIDEO
AFC S-CURVE
SIF/QPSK
IF IN
IF OUT
BTL 30V
SW1
TUNER 5V
DATA
CLOCK
VIDEO OUT
CLOCK
PS 5V
DATA
N.SW 5V
18
17
16
15
14
13
12
11
10
9
7
6
5
4
3
1
ENG47329G1:EE
ENG47328G1:B
ENG47327G1:EG/EC
TUNER UNIT
TU7601
R7602 100
33P
C7611
100
R7609
33P
C7610
100
R7610
A11
0
LB7602
0
LB7603
A12
10u:B/EC/EE
0:EG
L7651
0
L7605
50V1
C7605
2.2u
L7604
A2
18u
L7603
0
R7601
0.01
C7613
6V100
C7612
0
L7601
6V100
C7601
33u
L7602
6V100
C7602
A1
0.01
C7620
A13
A12
A11
A9
A8
A7
A6
A5
A4
A3
A2
A1
RFC AUDIO OUT
A
MAIN IIC CLOCK
S
MAIN IIC DATA
S
AFC S-CURVE
S
TUNER VIDEO
A
TUNER AUDIO (N)
V
OSD IIC CLOCK
S
OSD IIC DATA
S
TUNER AUDIO (R)
A
TUNER AUDIO (L)
A
RFC VIDEO OUT
A
AUDIO DEF
S
(5V REG)
2SC1959Y
Q1006
0
D1006
MA4056NH
D1005
25V47
C1011
(5V REG)
2SD602A
Q1007
0.1
C1009
470
R1009
0
D1001
MA4056NH
D1002
(5V REG)
2SC1959Y
Q1002
50V22
C1002
0.1
C1003
470
R1008
MA4051NL
D1003
16V47
C1004
CONTROL)
(VOLTAGE
2SD601A
Q1004
1000P
C1007
6200
R1012
5600
R1011
1K
R1010
0.1
C1008
(12V REG)
2SC1959Y
Q1005
50V4.7
C1006
1500
R1013
330
R7605
330
R7606
6800
R1015
N.SW 5V
T
A
S
N.SW 5V
V
BIAS 5V
V
V
PS 5V
A
V
PS 12V
A
REG 5V
S
56K
R1019
2700
R1018
2700
R1021
VIDEO 5V
V
V
DIGITAL 5V
150
R1025
25V47
C1016
R
A
C
UPC1093J
IC1001
T
GND
GND (HA2)
A
A
GND (LVM)
GND (SYS)
A
A
GND
GND (HA2)
V
V
GND (HA)
GND (SYS)
V
V
GND
GND (AV)
S
S
GND (CYL)
GND (MOTER)
S
S
GND (FG)
GND (SYS)
S
S
GND
GND
P
(5V REG)
2SC1959Y
Q1010
0.1
C1020
(5V REG)
2SC1959Y
Q1009
0.1
C1019
(5V REG)
2SC1959Y
Q1008
0.1
C1018
0.01
C7619
10K
R1016
4700
R1014
0.1
C1025
(POWER SAVE:OFF)
2SB710A
Q1003
(12V REG)
2SC1959Y
Q1011
10K
R1023
16V22
C1021
:ON)
(POWER OFF
UN2211
QR1006
MA4130NL
D1007
0.1
C1024
33K
R1001
5600
R1024
P
UNREG 5.6V
UNREG 14.5V
P
P
UNREG 36V
UN2112
QR1003
S
S
POWER OFF
POWER OFF
S
S
FIP
(FIP ON/OFF CONTROL)
UN2212
QR1002
0.1
C1026
27K
R1003
T
FIP -29V
(BUFFER)
2SD602A
Q1001
UNREG -29V
P
T
HEATER (+)
HEATER DC (+)
P
5600
R1005
10K
R1007
10K
R1006
T :TO TIMER SECTION
:TO Hi-Fi AUDIO SECTION
A
V :TO LUMINANCE & CHROMINANCE/AUDIO SECTION
:TO SYSTEM CONTROL & SERVO SECTION
S
ORDER A PART,PLEASE REFER TO PARTS LIST.
SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU
NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS
:TO POWER TRANSFORMER SECTION
HEATER DC (-)
P
WHEN REPLACING ANY OF THESE COMPONENTS,USE ONLY THE SAME TYPE.
COMPONENTS IDENTIFIED WITH THE MARK HAVE THE SPECIAL CHARACTERISTICS FOR SAFETY.
IMPORTANT SAFETY NOTICE:
G
F
P
10
9
8
NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE.
E
D
C
B
A
7
6
5
4
3
2
1
38
Summary of Contents for NV-HS880EG
Page 16: ...4 REMOVAL OF THE MAIN C B A Remove Screw F Remove 4 Screws G Unlock 2 Tabs H Fig D5 16 ...
Page 23: ...3 3 8 CIRCUIT BOARD LAYOUT 23 ...
Page 26: ...10 2 CASING PARTS SECTION 26 ...
Page 27: ...10 3 PACKING PARTS SECTION 27 ...
Page 28: ...11 REPLACEMENT PARTS LIST 11 1 CHASSIS PARTS SECTION PARTS LIST 28 ...
Page 41: ...D7501 MAZ4220NMF DIODE MAVD 41 ...
Page 43: ...K7301 ERJ6GEY0R00V M RESISTOR CH 1 10W 0 D0GBR00JA017 43 ...
Page 46: ...Q1104 2SD1992A R TRANSISTOR 46 ...
Page 48: ...R0715 ERJ3GEYJ223 M RESISTOR CH 1 16W 22K 48 ...