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15 SCHEMATIC DIAGRAMS
15.1. POWER SCHEMATIC DIAGRAM
CAUTION THE STRIPED FRAME INDICATES THE PRIMARY CIRCUIT TO DISTINGUISH THE PRIMARY
FROM THE SECONDARY CIRCUIT.
PAY ATTENTION NOT TO RECEIVE AN ELECTRIC SHOCK DURING REPAIR AND SERVICE OF
THE PRODUCTS.
HOT
T1150
F ETS29AS1J6
LB1214 C1122
J0JHC0000070 1000P
P1101 D1140
K2AA2H000007 DF08S-6622
F1101 LB1216
VSF0243C16 L1120 L1121 J0JKB0000028
ELF15N005A ELF15N003A
4 1 2
4 3 4 3
R1150
1M
D1110 C1125 C1141
ERZVA5V471 0.068 400V68 3
AC INLET
R1154
1M
1 2 1 2
3 2
4
E
LB1217
J0JKB0000028
5
6
648 R1162 R1163
D Q1153
1K 100 7
405
2SK2876
(VOLTAGE
CONTROL)
-152
8
C1155
270P
C1210 LB1218
3300P LR1150 J0JHC0000070
VLP0392
9
C1124
1000P
C 1 2 3
648
C1154 R1153
Q1150 2.2
0.022 330
FS4KM-12A-AS
(VOLTAGE CONTROL)
R1155
0 100K
D1210
B0HAGM000006
2.2 R1157 D1157
2.2 Q1151 0.3
3900 MA4036M
B R1161
100 Q1152
2SD1992A
(VOLTAGE
Q1200
PC123
0 CONTROL) D1152
2SC3311A MA185
R1160 (VOLTAGE
CONTROL) C1151 D1155 16.3
0.51 0.022 MA165 4
(1W)
C1153 R1156
0.1 33
0.9
3
R1159 R1158 C1152
3.3 330 0.01
A
NOTE1:WHEN MEASURE THE VOLTAGE OR WAVEFORM ON THE POW
CIRCUIT,SET THE GND TERMINAL OF MEASURING POINT AS F
PRIMARY SIDE.....
IMPORTANT SAFETY NOTICE: SECONDARY SIDE...
COMPONENTS IDENTIFIED WITH THE MARK HAVE THE SPECIALCHARACTERISTICS FOR SAFETY. NOTE2:THE DC VOLTAGE INDICATED IN PRIMARY SIDE IS SHOWN TH
WHEN REPLACING ANY OF THESE COMPONENTS,USE ONLY THE SAME TYPE. INPUT AC IS 240V.
1 2 3 4 5
83
OF
P1102
1 GND(M)
T1150 2 UNREG 14V/16V
ETS29AS1J6AC
3 UNREG 6V
(POWER SUPPLY/RF)
D1230 MA185 4 UNREG 6V
20 5 UNREG 36V
TO VHS MAIN
6 UNREG 36V
P1001(F-1)
C1230 D1180 R1230
MA7510 7 GND
50V47 47K
8 H+(SWD)
L1250 9 GND
D1250 B0JAMK000015 22u 10 H-(SWD)
2 19 11 UNREG -29V(SWD)
D1251 B0JAMK000015
C1251
25V100
C1250
25V820 L1290
D1290 11EQS06 22u R1282
3 18 18 P1103
1 HE(+)
C1290 C1291 R1290
16V390 2 HE(-)
16V100 10K
3 GND(D)
TO DVD INTERFACE
L1260 4 UNREG 4V
D1261 B0JARE000014 22u 5 GND(D)
(AUDIO DAC)
P30001(A-11)
4 17 6 UNREG 6V
D1260 B0JARE000014 7 GND(A)
C1261
10V220 8
C1260 IP1240 9 UNREG -29V
10V2700 UNH000700A L1240 10 GND(M)
D1240 11EQS04 22u 11 UNREG 9V
5 16 2 1
D1241 11EQS04
C1240 C1241 R1240
10V1800 10V220 4700
6 15
D1270
MA185
7 14
D1363 D1364 D1365
C1270 MA165 MA165 MA165
50V47
D1281
11EQS04
8 13
C1282
00070 35V180
9 12
D1362 C1361
1124 C1281 MA4220N 35V10
000P 25V180
D1280
11EQS04
11
D1282
MA185
R1201 R1200
33K 39K
IC1200
uPC1093J
Q1200
PC123ZY2
C A R R1209
4.6 2.5 8200
16.3 6.1
4 1
R1205
156 R1206 2200 C1200 R1204 R1210
270 0.1 12K 56K
0.9 5.0
3 2
R1203 R1202
22K 2200
AVEFORM ON THE POWER TRANSFORMER
MEASURING POINT AS FOLLOWS. NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS
SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU
ORDER A PART,PLEASE REFER TO PARTS LIST.
ARY SIDE IS SHOWN THE VOLTAGE WHEN NOTE:THE MEASURMENT MODE OF THE DC VOLTAGE ON NV-VHD1B/EC/EE/F
THIS DIAGRAM IS STOP MODE. POWER SCHEMATIC DIAGRAM
6 7 8 9 10
83
15.2. POWER SUPPLY/RF SECTION IN MAIN SCHEMATIC DIAGRAM
B :TO SECAM SECTION(F ONLY) VIDEO MAIN SIGNAL PATH IN REC MODE AUDIO MAIN SIGNAL PATH IN REC MODE
D :TO DECODER SECTION
VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE AUDIO MAIN SIGNAL PATH IN PLAYBACK
S :TO SYSTEM CONTROL & SERVO SECTION
V :TO LUMINANCE & CHROMINANCE/AUDIO SECTION
A :TO Hi-Fi AUDIO SECTION Q1002 Q1006
I :TO INPUT/OUTPUT SECTION 2SD602A 2SD601A
(BUFFER) (FIP ON/OFF CONTROL)
T :TO DISPLAY SECTION
-14.7 -14.7 -29.4 -29.3
G R1009
-14.0 22K 5.2
T HEATER(-)
R1011 R1008
5600 22K
R1006 R1007
10K 10K
5.2
T HEATER(+)
0
QR1001
S FIP L UN2112
(FIP L :ON)
T S SYS 5V
5.2
T FIP -29V
P1001
F GND(MOTOR)
UNREG 14V
1
2 R1027 (EX.B)
10K
UNREG 6V(D) 3 Q1008
UNREG 6V(A) 4 (EX.B) 2SB710A R7607 R7606
P1102(F-10)
TO POWER
UNREG 36V 5 (POWER SAVE:OFF) 330 330
UNREG 36V 6
35.4 35.4
GND 7 (B)
HEATER(+) 8 R1025
4700 34.7
K1007
GND 9
HEATER(-) 10
UNREG -29V 11 Q1007
R1026
D1005 2SC1959Y 10K
0 (12V REG.)
S UNREG 14V
15.8 12.3
R1001 10K
C1011
0.01 12.9
E R1023 10K
D1008 C1010
MA4130NL 16V47
D1012 0
0
4.9
A GND(HIFI)
S GND(AV)
Q1005 QR1002
V A GND 2SD602A UN2211
(5V REG.)
(SLEEP L :OFF)
5.6 5.0
Q1003 C1003 (EX.B)
0.01
5.6 2SC1959Y 5.7
(5V REG)
D 6.0
Q1004
5.2 R1012 2SC1959Y
1K (5V REG.)
D1003 5.6 5.0
D1013 MA4051NH C1002 C1006
MA165 10V47 0.01 5.7
R1003
1K
D1006 C1008 R1002 R1017
MA4051NM 10V47 1K 1K
D1007
MA165
C V BIAS 5V
B V VIDEO 5V
S CYL 5V
T A I PS 12V
T S A I PS 5V
S D REG 5V
I N.SW 5V C7623 C7608 C
0.01 220P 2
Q1203
2SC1959Y
(5V REG.)
5.7 5.1
S IIC DATA A1
B S
D
IIC CLOCK
TUNER AUDIO OUT
A2
A3 Q1201 R1201 R1204
5.7 Q1202
1K 1K
S POWER OFF H A4 2SC1959Y 2SC1959Y
(5V REG.) (5V REG.)
5.7 5.2 5.7 5.0
S AFC S-CURVE A7 C1202 C1207
I V TUNER VIDEO A8 6V100 C1206 6V47
5.9 0.1 5.7
S SW2 A9
I RFC VIDEO OUT A10 QR1201
A RFC AUDIO OUT A11 5.7
D1201 C1204 UN2212
MA4056NM 10V22 (POWER OFF H :ON)
-0.1
D1202
MA165
A
A4
IMPORTANT SAFETY NOTICE:
COMPONENTS IDENTIFIED WITH THE MARK HAVE THE SPECIAL CHARACTERISTICS FOR SAFETY.
WHEN REPLACING ANY OF THESE COMPONENTS,USE ONLY THE SAME TYPE. NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MOD
1 2 3 4 5 6
84
PATH IN REC MODE
PATH IN PLAYBACK MODE TU7601
TUNER UNIT
ENG47327G1:EC
ENG47328G1:B
ENG47329G1:EE
ENV57G04H6:F
L7602 (EX.F)
27u
1 N.SW 5V
L7609 0 R7602 0
C7603 C7607 A11 2 AUDIO OUT
6V100 220P
R7604 0
3 DATA
4 PS 5V
L7601 R7605 0
33u C7604 5 CLOCK
6V100
L7603 0 R7601 0
A10 6 VIDEO OUT
(EX.F)
7
C7615
33P
8
C7614 (F) 9
33P
K7604
K7603
R7611
470 10
R7607 R7606
330 330 11 CLOCK
12 DATA
R7615 13
L7604 470
2.2u
14 TUNER 5V
(EX.F)
C7616 C7617 K7601
6V100 0.01 15 SW1
16 BTL 30V
LB7602
0 C7611 C7610 D7601
220P MA4300M 17 IF OUT
50V1
18 IF IN
(EX.F)
(EX.F) C7625
K7602 56P
A9
C7620 DU7601
0.1 19 SW1 PK0701-1
TO TV DEMODULATOR
20 SW2 PK0701-2
A3 21 TUNER AUDIO PK0701-3
PACK PK0701(D-1)
L7605 22 SIF/QPSK PK0701-4
39u:EX.F A7 23 AFC S-CURVE PK0701-5
0:F 24 TUNER VIDEO PK0701-6
25 TUNER 5V PK0701-7
C7613 26 PK0701-8
C7612 27 GND PK0701-9
0.1 0.022
R7613
150
A8
R7608
150
L7608
2.2u
QPSK/SIF D
7623 C7608 C7622
01 220P 2200P
A1 A2
NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS NV-VHD1B/EC/EE/F
SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU POWER SUPPLY/RF
DIAGRAM IS STOP MODE. ORDER A PART,PLEASE REFER TO PARTS LIST. SECTION IN MAIN SCHEMATIC DIAGRAM
6 7 8 9 10
84
15.3. INPUT/OUTPUT SECTION IN MAIN SCHEMATIC DIAGRAM
R :TO POWER SUPPLY/RF SECTION VIDEO MAIN SIGNAL PATH IN REC MODE VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE
S :TO SYSTEM CONTROL & SERVO SECTION
A14 A15 A16 A17 A18 A1 A3
T :TO DISPLAY SECTION
V :TO LUMINANCE & CHROMINANCE/AUDIO SECTION
A :TO Hi-Fi AUDIO SECTION L4903
G 68u
C4925 C4926
0.1 6V220 R4926
T R RFC VIDEO OUT 470
R PS 12V L4902
R PS 5V 68u
R N.SW 5V
T R OUT A21
C4920 C4921
T G OUT A20 R4905 0.1 6V220
T B OUT A19 22K
S AV2 PB
R4928 1.3
R4915 1K
A AUDIO IN2(R) A13 L4906 R4904 470
68u 15K 0.6 Q4904
A AUDIO IN2(L) A12 D4903 R4960 2SB709A
A AUDIO OUT2(L) A11 MA165 1K (AMP)
R4927
A AUDIO OUT2(R) A10 1K
F A
A
AUDIO IN1(R)
AUDIO IN1(L)
A9
A8
C4916 C4919 C4929
A AUDIO OUT1(L) A7 0.1 0.1 0.1
A AUDIO OUT1(R) A6
S PROJECT 50 A5 IC4901 3.0
S AV1 B IN A4 LA73021M 2.2 (1.9) 0 0 0 0 1.8 5.2 2.1 0 1.8 0
S AV PB H A3 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22
S VIDEO OUT A1 GND N.SW GND
5V
FSS
OUT
6dB 6dB
CLAMP CLAMP CLAMP
E SW1 SW3
D A
C A
B C B
SERIAL
CONTROL
D CLAMP CLAMP
IIC BUS
POWER INTERFACE EXT EXT RIPPLE EXT
SAVE CTL 4 CTL 2 V REF FLT CTL 3
GND 12V GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 4.8 4.8 3.1 1.9 2.3 6.2 0