Теги: electrical engineering
Год: 1994
Текст
ORDER NO. VRD9410M154
Service Manual
Video Cassette Recorder
Panasonic IVHSI HQ
PAL NTSC
NV-SD300AM
NV-SD400EU
K-MECHANISM
SPECIFICATIONS\TEXHM4ECKME ХАРАКТЕРИСТИКИ
DESCRIPTIONS\OELHEE ОПИСАНИЕ
SERVICE INFORMATION\CEPBHCHAR ИНФОРМАЦИЯ
SERVICE INFORMATION 015Р1_АУ\ИНДИКАЦИЯ СЕРВИСНОЙ ИНФОРМАЦИИ
SELF-TEST INDICATION 015Р1_АУ\ИНДИКАЦИЯ ИНФОРМАЦИИ САМОТЕСТИРОВАНИЯ
ADJUSTMENT PROCEDURES\nPOUEflYPbl НАСТРОЙКИ
DISASSEMBLY METHOD \МЕТОДИКА РАЗБОРКИ
MECHANICAL ADJUSTMENT PROCEDURES \MЕТОДИKA MЕХАНИЧЕСКОЙ НАСТРОЙКИ
DISASSEMBLY PROCEDURES OF MECHANISM \МЕТОДИКА РАЗБОРКИ МЕХАНИЗМА
ASSEMBLY PROCEDURES OF MECHANISM \МЕТОДИКА СБОРКИ МЕХАНИЗМА
ELECTRICAL ADJUSTMENT PROCEDURES \МЕТОДИКА ЭЛЕКТРИЧЕСКОЙ НАСТРОЙКИ
BLOCK 01АСВАМ5\БЛ0К - СХЕМЫ
ABBREVIATIONS\COKPAUAEHHR
SYSTEM CONTROL & SERVO BLOCK О1АСВАМ\БЛОК - СХЕМА СИСТЕМЫ УПРАВЛЕНИЯ И СЕРВОПРИВОДА
LUMINANCE & CHROMINANCE BLOCK О1АСВАМ\БЛОК - СХЕМА ОБРАБОТКИ ВИДЕО СИГНАЛА
SCHEMATIC DIAGRAMS ^ПРИНЦИПИАЛЬНЫЕ СХЕМЫ
POWER SUPPLY SECTION IN MAIN SCHEMATIC Э1АСРАМ\ПРИНЦИПИАЛ ЬНАЯ СХЕМА БЛОКА ПИТАНИЯ (ОСНОВНАЯ
ПЛАТА)
SYSTEM CONTROL & SERVO SECTION IN MAIN SCHEMATIC О1АСРАМ\ПРИНЦИПИАЛЬНАЯ СХЕМА СИСТЕМЫ
УПРАВЛЕНИЯ И СЕРВОПРИВОДА
LUMINANCE/CHROMINANCE & AUDIO SECTION IN MAIN SCHEMATIC Э1АСРАМ\ПРИНЦИПИАЛЬНАЯ СХЕМА ОБРАБОТКИ
ВИДЕО И АУДИО СИГНАЛА (ОСНОВНАЯ ПЛАТА)
RF SECTION IN MAIN SCHEMATIC О1АСВАМ\ПРИНЦИПИАЛЬНАЯ СХЕМА ВЫСОКОЧАСТОТНОГО БЛОКА
OSD PACK SCHEMATIC О1АСВАМ\ПРИНЦИПИАЛЬНАЯ СХЕМА БЛОКА ЭКРАННОГО МЕНЮ
MOTOR DRIVE & SUB AUDIO PACK SCHEMATIC DIAGRAM\ ПРИНЦИПИАЛЬНАЯ СХЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ И
ОБРАБОТКИ АУДИО СИГНАЛА (ДОПОЛНИТЕЛЬНАЯ ПЛАТА)
LUMINANCE & CHROMINANCE PACK SCHEMATIC О1АСРАМ\ПРИНЦИПИАЛЬНАЯ СХЕМА ОБРАБОТКИ ВИДЕО СИГНАЛА
HEAD AMP SCHEMATIC О1АСВАМ\ПРИНЦИПИАЛЬНАЯ СХЕМА УСИЛИТЕЛЯ ВИДЕОГОЛОВОК
TIMER SCHEMATIC DIAGRAM ^ПРИНЦИПИАЛЬНАЯ СХЕМА ТАЙМЕРА
TV DEMODULATOR PACK SCHEMATIC О1АСРАМ\ПРИНЦИПИАЛЬНАЯ СХЕМА ДЕМОДУЛЯТОРА
EXPLODED VIEWS & MECHANICAL PARTS LIST \СБОРОЧНЫЕ ЧЕРТЕЖИ И СПИСОК МЕХАНИЧЕСКИХ ЗАПАСНЫХ ЧАСТЕЙ
CHASSIS PARTS SECTION (1)\ШАССИ, СЕКЦИЯ1
CHASSIS PARTS SECTION (2)\ШАССИ, СЕКЦИЯ2
PACKING PARTS SECTION\ynAKOBO4HblE МАТЕРИАЛЫ
CASING PARTS SECTION\KOPnyC
ELECTRICAL REPLACEMENT PARTS Ы5Т\СПИСОК ЭЛЕКТРИЧЕСКИХ ЗАПАСНЫХ ЧАСТЕЙ
Panasonic
© 1994 Matsushita Electric Industrial Co., Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.
SECTION 4
SCHEMATIC DIAGRAMS
4-1. POWER SUPPLY SECTION IN MAIN SCHEMATIC DIAGRAM
E
в
I A
±01101
330P:
NV-SD300AM
470P:
NV-SD400EU
A
C1104
•0.033:
NV-SD300AM
0.15:
NV-SD400EU
A
-С1102
330P:
NV-SD300AM
470P:
NV-SD400EU
A
D1102
S1WBA60BS
A
L1102
ELF18D290A2: NV-SD300AM
ELF18D221F ’• NV-SD400EU
A
:ciios
0.068
♦С1Ю6
3*400V6S
A
С1ЮЗ
Tiooop
L1103
VLP0083
L1104
VLP0083
R1110
10K
—Wr
D1106
MA4200H
—H—
R1108
100
—Wr
R1107
220K
3:C1110
6V330
•C1111
1000Р
-4^-
D1105
MA700
IMPORTANT SAFETY NOTICE:
COMPONENTS IDENTIFIED WITH THE MARK A HAVE THE SPECIAL CHARACTERISTICS FOR SAFETY.
WHEN REPLACING ANY DF THESE COMPONENTS, USE ONLY THE SAME TYPE.
NOTE: THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM II
1
2
3
4
1 5
LTIC DIAGRAM
R1117 D1104
10 MA178
-va—-H-
1 tC1109
* b 35V47
R1103<
220K<
T1101
ETE28K94AY
D1125
11EQS04
“M—
01143
6V220
C1145
’0.01
R11O4>
220K<
T1101-P1 STOP
30Vp-p (2msec. div)
<R1102
<6SK
ЛС1107
T0.01
R1105<
3.9M>
J-C1108
T120P
- -D1103
^AP01CV2
R1106>
4.7M<
C1141
0.01
*C1132
25V220
-I-C1138
T 0.01
R1114
2200
-w-
T1101-S4 STOP
32Vp-p (5ysec. div)
T1101-S2 STOP
80Vp-p (5ysec. div)
T1101-S5 STOP
220Vp-p (5ysec. div)
A
Q1101
PC2561L2-1WL
R1109
<R1122
<220
—h
R1111
470
L1105
VLP0085
IC1101-4 STOP
l.4Vp-p (5ysec. div)
AlSS254
R1113
0.S2
IC1101-1 STOP
400Vp-p (5ysec. div)
IC1101-2 STOP
11 Vp-p (5usec. div)
C1136
'100P
L1122
22ц
3 tC1l34
10V390
3 £01135
10V330
- i D1126
Ф MA4047M
C1004
01005j :
6V100
D1006
1SS254
—M-
R1001
4700
Q1003
2SD1996
(5V REG)
C1008 5.8
^l1l--------
", JD1004
MA4051L
WD1005
" "1SS254
Q1002
2SD1996
(5V REG)
5.9
IC1001
HA1743
_ _ D1122
. . 11EQS04
NDTE 1. WHEN MEASURE THE VOLTAGE OR WAVEFORM DN THE POWER TRANSFORMER
CIRCUIT, SET THE GND TERMINAL OF MEASURING POINT AS FOLLOWS.
PRIMARY SIDE....
SECONDARY SIDE ...л*
: THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE. N0TE 2- THE DC VOLTAGE INDICATED IN PRIMARY SIDE IS SHOWN THE VOLTAGE WHEN
INPUT AC IS 240V.
4 I 5 | 6 I 7 | 8
15
IS04
C1143
6V220
J-C1144
T0.01
•C1145
0.01
к
TOP
isec. div)
15
L1124
100p
L1127
VLP0074
HEATER (-)
HEATER ( + )
UNREG -29V
POWER OFF ф
UNREG 14V
SYSTEM CTL 5V
VIDEO 5V______
REG 12V_______
GND (SYS)
GND (MOTOR)
GND (FG)
GND
TO SYSTEM CONTROL
& SERVO SECTION
(Page: 4-7/A-19)
F2FC
J9
•02V5
1122
IEQS04
L1122
22P
1134
IV390
j £C1140
♦ 35V56
-*-01141
To.01
L1121
22p
C1131
25V330
C1132
25V220
L1123
100P
j SC1137
63V47
•C1138
0.01
R1001
4700
Q1001
2SD25440PQA
(12V REG)
J-C1001
T o.oi
x rC1003
16V100
UNREG 45V
SYSTEM CTL 5V
VIDEO 5V
REG 12V______
GND
TO RF SECTION
(Page: 4-14/0-9)
jtC1002
16V47
D1001
MA4120M
JIC1135
10V330
СЮ04
0.01
D1006
1SS254
—K—
Q1003
2SD1996
(5V REG)
R1006
1200
JD1004
MA4051L
X 1D1005
’ ’1S8254
Q1002
2SD1996
(5V REG)
C10053£
6V100
’OWER TRANSFORMER
AS FOLLOWS.
J THE VOLTAGE WHEN
5 7 D1002
““1SS254
C1010
6V100
jfc C1009
6V100
a £C1OO7
6V100
IC1001
HA17431PA
R1002
1K
—VvV-
GND
SYSTEM CTL 5V
VIDEO 5V______
REG 12V_______
GND (V)_______
GND (I/O)
TO LUMINANCE/
CHROMINANCE &
AUDIO SECTION
(Page: 4-12/F-2)
C1006
R1003
2700
R1005
2700
L1125
VLP0085
GND
5 TO BOTTOM PLATE
NOTE: DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR
ORDERING. WHEN YOU ORDER A PART, PLEASE REFER TO PARTS LIST.
8
9
10
11
4-3. SYSTEM CONTROL & SERVO SECTION IN MAIN SCHEMATIC DIAGRAM
MODE SW
LOADING
MOTOR
IMPORTANT SAFETY NOTICE:
COMPONENTS IDENTIFIED WITH THE MARK A HAVE THE SPECIAL CHARACTERISTICS FDR SAFETY.
P6OO4
P2001
PP2001
PP2002
TO LUMINANCE/
CHROMINANCE &
AUDIO SECTION
(Page: 4-12/G-2, A-12)
TO PS2501
(Page: 4-23/E-3)
TO PS4701
(Page: 4-23/B-14)
LOADING M (-)
LOADING M (+)
GND_________
POSI. SW. 2
POSI. SW 1
POSI- SW 3
R2042
22K
REG 12V_______
GND (MOTOR)
UNREG 14V
CAP ET________
SYSTEM CTL 5V
CAP R/S/F
CURR. LIMIT
GND (PG)______
FG 1__________
FG 2__________
SP®
LP ®
SLOW TRACK
GND (CYL)
CYL ET________
TEST__________
CYL PG/FG
DEW SENSOR
CTL HEAD (+)
CTL HEAD (-)
GND_________
A. HEAD (W)
A. HEAD (R)
REG 12V
D- A REC ®
D- REC ®
MOTOR DRIVE & SUB AUDIO PACK C.B.A.
(VEP04469A)
D.REC ®
A. HEAD (R)
A. HEAD (W)
WHEN REPLACING ANY DF THESE COMPONENTS. USE ONLY THE SAME TYPE.
6
[C DIAGRAM
CAPSTAN SERVO SPEJ
6 | 7
8
9 Г
10
11
ERVO SPEED LOOP
CAPSTAN SERVO PHASE LOOP
CYLINDER SERVO SPEEI
(B3) (B8) (B2) (B6) (B7)
) }_____________________) ) )
(B12) (B11)
J_______
ii I 12
13 I 14
[DER SERVO SPEED LOOP
CYLINDER SERVO PHASE LOOP
ЧА34)-'
QR6001
XN1211
i
(A24)
- *< CURR EMPH ®
- *< V. EE ©
AUDIO MUTE ®
NTSC Q
*< REC ®
• »< HEAD SW
< MESECAM ®
OSD ON ®~
PAL ®
< TEST SIG Q
< SEL MUTE ®
< INPUT SELA
S TIMER BUS TLK
IC CLOCK
OSD CS ®
AFC DEF ®
NTSC 3-58 ®
>C~A.DUB®~
TO LUMINANCE/
CHROMINANCE &
AUDIO SECTION
(Page: 4-1216-2, A-12)
PAL I ®
AFC DEF ®~
< AFC S-CURVE
< AUDIO DEF ®
< РАС
< BAND U
К BAND VL
TO RF SECTION
(Page: 4-14/F-9)
P6001
16
OSD ON ®
PAL ®
(Cl9>-
—( C20>
—( C13>-
HC21)-
MC22)-
—( C23h
RESET Ф
TEST SIG ф
SEL MUTE
INPUT SEL A
S. DATA_______
S- CLOCK
TIMER BUS TLK
IC CLOCK
OSD CS ®
GND___________
GND___________
AFC DEF. ®
AFC S-CURVE
AUDIO DEF. ®
NTSC 3.58 ®
РАС__________
UNREG 14V
BAND U________
BAND VL_______
SYSTEM CTL 5V
UNREG -29V
HEATER (-)
HEATER (+)
TO TIMER
P7501
(Page: 4-38/B-1)
HEATER (+)
HEATER (-)
UNREG -29V
SYSTEM CTL 5V
UNREG 14V
VIDEO 5V______
REG 12V_______
POWER OFF (D
GND (FG)
GND (SYS)
GND (MOTOR)
GND
TO POWER SUPPLY
SECTION
(Page: 4-1/E-10)
NOTE: DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR
ORDERING. WHEN YOU ORDER A PART, PLEASE REFER TO PARTS LIST.
19 | 20
SYSTEM CONTROL & SERVO ICs DC VOLTAGE CHART (SP MODE)
\REF, NO. MODE \ IC2001 IC2004
1 2 3 4 5 6 7 8 9 1D 1 2 3 4 5 6 7 8
STOP D.2 14.4 14.4 D D 0 7.4 9.3 0.1 D 2.5 2.5 2.5 D 0 0.1 0 14.D
PLAY 0.3 14.1 14.1 0 0 0 7.4 9.1 0.5 0 2.5 2.5 2.5 0 0 1.6 0 13.7
REC 0.2 14.0 14.0 0 0 0 7.4 9.0 0.2 0 2.5 2.5 2.5 0 0 D D 13.6
F.F 0.5 14.1 14.1 0 0 0 14.0 9.1 0.5 0 2.5 2.5 2.5 0 0 1.D 0 13.6
REW 0.3 14.1 14.1 0 0 0 14.1 9.1 0.3 0 2.5 2.5 2.5 0 0 1.4 0 13.7
\ref, no. MODE \ IC6001
1 2 3 4 5 6 7 8 9 1D 11 12 13 14 15 16 17 18 19 20
STOP 0 5.0 D 0 0 5.0 0 0 0.2 2.5 5.0 0 0.1 0 0 2.5 5.0 4.9 0 0
PLAY 0 5.0 0 0 5.0 5.0 0 0 3.8 2.5 5.0 0 0.1 0 0 2.5 5.0 4.7 0 0
REC 0 5.0 0 0 5.0 5.0 0 0 4.8 2.5 5.0 0 0.1 0 0 2.5 4.9 4.3 4.1 0
F.F 0 5.0 0 0 2.3 5.0 0 0 2.3 2.5 5.0 0 0.1 D 0 2.5 0 4.8 2.3 0
REW 0 5.0 5.D 0 2.3 5.0 0 0 2.8 2.5 5.0 0 0.1 0 0 2.5 5.0 4.8 2.3 0
\REF, no. MODE \ IC6001
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
STOP 5.0 5.0 0.1 2.5 0.2 2.5 2.5 2.5 0 2.5 2.4 2.7 5.0 0 0 0 2.5 2.5 0 2.5
PLAY 5.0 5.0 2.5 2.5 3.1 2.5 2.5 2.5 0 2.5 0 2.5 5.0 0 0 0 2.5 2.5 0 2.8
REC 5.0 5.0 2.5 2.5 0 2.5 2.5 2.5 0 2.5 2.4 2.6 5.0 2.2 0 0 2.5 2.5 0 2.5
F.F 0 5.0 2.5 2.5 2.1 2.5 2.5 0 0 2.5 2.4 D 5.0 0 0 0 2.5 2.5 0 3.0
REW 5.0 5.0 2.5 2.5 2.7 2.5 2.5 2.5 0 2.5 2.4 0 5.0 0 0 0 2.5 2.5 D 0
\REF, no. MODE \ IC6001
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
STOP 2.6 5.0 1.1 2.9 0 4.9 0 5.0 5.0 0 4.8 5.0 5.0 5.0 5.0 0 0 0 0 2.5
PLAY 2.6 5.0 0 2.9 2.5 4.9 0 5.0 5.D 0 4.8 5.0 5.0 0.1 5.0 0 0 0 0 2.5
REC 2.6 5.0 1.1 2.9 0 4.9 0 5.0 5.0 0 4.8 5.0 5.0 0.1 5.0 0 0 0 0 2.5
F.F 2.6 5.0 1.1 2.9 0 4.9 0 5.0 5.0 0 4.8 0 5.0 0.1 0 0 0 0 0 2.5
REW 2.6 5.0 1.1 2.9 0 4.9 0 5.0 5.0 0 4.8 5.0 5.0 0.1 0 0 D 0 0 2.5
\ref, no. MODE \ IC6001
61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
STOP 5.0 2.1 4.5 4.2 5.0 0 0 5.0 0.1 5.0 0 5.0 0.1 0 0 5.0 0 0 5.0 0
PLAY 5.0 0 4.5 4.3 5.0 0 0 0 0.1 5.D 0 0 0 0 0 5.0 0 0 0 0
REC 5.0 0 4.5 4.3 5.0 5.0 5.0 5.0 5.0 5.0 0 0 0.1 0 0 5.0 0 0 5.0 0
F.F 5.0 0 4.5 4.3 5.0 0 0 5.0 0 5.0 0 0 0.1 0 0 0 0 0 5.0 0
REW 5.0 5.0 0 4.3 5.0 0 0 5.0 0.1 5.0 0 5.0 0.1 0 0 D 0 0 0 0
\ref. no. MODE \ IC6001
81 82 83 84
STOP 0 — — 5.1
PLAY 0 — — 5.1
REC 0 — — 5.0
F.F 0 — — 5.0
REW D — - 5.1
SYSTEM CONTROL & SERVO TRANSISTORS DC VOLTAGE CHART (SP MODE)
\REF, NO. MODE \ Q6001
E c В
STOP 5.0 -0.1 5.0
PLAY 5.0 5.0 4.3
REC 5.0 5.0 4.3
F.F 5.0 5.0 4.3
REW 5.0 5.0 4.3
\ref. no. MODE \ QR2001 QR2002 QR2003 QR2004
E C В E c в 1 2 3 4 5 E C В
STOP 5.0 0 5.0 5.0 0.2 5.0 0 0 0.9 0 0.9 5.0 4.7 5.0
PLAY 5.0 0 5.0 5.0 0.2 5.0 0 0 0.9 0 0.9 5.0 4.7 5.0
REC 5.0 0 5.0 5.0 D.2 5.0 0 0 0.9 0 0.9 5.0 4.7 5.0
F.F 5.0 0 5.0 5.0 0.2 5.0 0 0.7 0 0 0 5.0 4.7 5.0
REW 5.D 0 5.0 5.0 0.2 5.D 0 0.7 0 0 0 5.0 4.7 5.0
\ref, no MODE \ QR6001 QR6003
1 2 3 4 5 E C В
STOP 0 0 5.0 0 5.0 0 13.1 0
PLAY 0 0 5.0 0 5.0 0 13.1 0
REC 0 0 5.0 0 5.0 0 13.1 0
F.F 13.4 7.3 0 0 0 0 13.1 0
REW 14.0 7.4 0 0 0 0 13.1 0
4-4. LUMINANCE/CHROMINANCE & AUDIO SECTION IN MAIN SCHEMATA
G
D
В
NOTE: THE MEASUREMENT MODE OF THE DC VOLTAGE IN THE BRACKETS ( ) ON
WITH PAL COLOUR SIGNAL. (SP MODE)
1 I 2 | 3 I 4 I 5 | 6~
ION IN MAIN SCHEMATIC DIAGRAM
-----------------------VIDEO MAIN SIGNAL PATH IN REC MODE
VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE — — — AL
iSUREMENT MODE OF THE DC VOLTAGE IN THE BRACKETS ( ) ON THIS DIAGRAM IS RECORD MODE THE MEASUREMENT MODE OF THE DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBACK MODf
L COLOUR SIGNAL. (SP MODE) WITH PAL COLOUR SIGNAL. (SP MODE)___________________________________________
I 5 | 6 I 7 | 8 | 9 I io"
AUDIO MAIN SIGNAL PATH IN REC MODE
AUDIO MAIN SIGNAL PATH IN PLAYBACK MODE
IC4002-2 PLAY
20mVp-p (10msec. div)
1C4002-7 PLAY
o.2Vp-p (0.5msec. div)
R4021
R405S
-J- C4011
J820P
JK3002 VJJ0391
JK3002-2 REC
0.5Vp-p (0.5msec. div)
A 3017
VIDEO
OUT
AUDIO
OUT
R3O15
SW3001
VSS0398
R4025
390
IC4002-18 REC
1.4Vp-p (0.5msec)
JK3002-3 REC
i.0Vp-p (20psec. div)
IC4002-14 REC
0.8Vp-p (0.5msec. div)
/ V V V
IC4002-14 PLAY
1-OVp-p (0.5msec. div)
TUNER AUDIO
RF AUDIO OUT
VIDEO OUT
MER VIDEO
TO RF SECTION
(Page: 4-14/E-9)
Г
TW6*-
о31005^
-4I-I
C3008X
1000P
C3011
L301C
880g
“"-I
с зооэХ
П ЛТ
C3015
1000P
R3038
R3O39
GND__________
LP ®
CURR. ENPH®
ENV.SELECT
TRACKING ENV.
HEAD SW
H.AMP SW
RF C_________
EX.REC 5V
RF Y_________
GND__________
REC C________
D.REC 12V
REC Y_______
ENV. SELECT
H.AMP SW
HEAD SW
CURR. EMPH®
D-REC®
SP®
TEST SIG©'
D.A.REC ®
P501-14
P501-13
P501-12
P501-11
P501-10
P501 9
P501- 8
P501 • 7
P501 • 6
P501 • 5
P501-4
P501 -3
P501 • 2
P501 • 1
TO HEAD AMP
P501
(Page: 4-35/E-1)
TO SYSTEM CONTROL
& SERVO SECTION
(Page: 4-7/A-4, G-4, F-19)
IN THIS DIAGRAM IS PLAYBACK MODE
NOTE: DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR
ORDERING. WHEN YOU ORDER A PART, PLEASE REFER TO PARTS LIST.
10
11
12
13
4-5. RF SECTION IN MAIN SCHEMATIC DIAGRAM
VIDEO MAIN SIGNAL PATH
VIDEO MAIN SIGNAL PATH
PK0701
1
REG 12V
TUNER AUDIO
GND 4
TO PK0701 AFC S-CURVE 5
(Page: 4-45/D-1) VIDEO MUTE 6
TUNER VIDEO
— —— 8
PAL 1® 9
.. 10
PP0701
AGC 1
TO PP0701 2
(Page: 4-45/A-1) IF 3
GND 4
TV DEMODURATOR (VEP07764A) PACK C.B.A.
C7606- 0.01* - C7605- 16V100: 1 L7603 68p
C7618
0.01
-4H
C7617
16V100
L7601
68 M
C7678.
-wv-
R7617
-Wv—
R7690
10K
IMPORTANT SAFETY NOTICE:
COMPONENTS IDENTIFIED WITH THE MARK A HAVE THE SPECIAL CHARACTERISTICS FOR SAFETY.
WHEN REPLACING ANY OF THESE COMPONENTS, USE ONLY THE SAME TYPE. ___________
i I I з
NOTE: THE MEASUREMENT MODE OF THE DC
4 I 5
N SIGNAL PATH IN REC MODE
N SIGNAL PATH IN PLAYBACK MODE
AUDIO MAIN SIGNAL PATH IN REC MODE
AUDIO MAIN SIGNAL PATH IN PLAYBACK MODE
PAL I®
AFC S-CURVE
AFC DEF®
BAND VL
BAND U
РАС
•( AUDIO DEF®
TO LUMINANCE/
CHROMINANCE &
AUDIO SECTION
(Page: 4-12/D-12)
TO POWER SUPPLY
SECTION
(Page: 4-1/D-10)
EASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE.
NOTE: DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR
ORDERING. WHEN YOU ORDER A PART, PLEASE REFER TO PARTS LIST.
6
7
8
9
TO SYSTEM CONTROL
& SERVO SECTION
(Page: 4-7/D-19)
10
4-6. OSD PACK SCHEMATIC DIAGRAM
——— VIDEO MAIN SIGNAL PATH 1Г
L7706
ЗЗЦ
C
C7716
0.01
777 777
IC7701
UPD6464CS501
В
A
TO LUMINANCE/
CHROMINANCE &
AUDIO SECTION
PP3007
(Page: 4-12/A-2)
1.
D7704
e„ 1SS254
5.0_____
__||_
C7714
100P
L7705
10U
' 5.1
VCUT
’ 0.6
SECAM
NOTE: THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DM
1
2
3
IN SIGNAL PATH IN REC MODE
VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE
VCUT SECAM VBSO NRE TEST NC CSYNI
VSYO
0
VOBL
CS DATA
OSD OSD ____________
VDD OUT IN PCL
GND FSCI FSCO XOSD XOSI
>—c ,4.5 , 4 .4.5 , )—c 5.1 rC7701 6V47 г л P .0 L77O2 ЗЗЦ -C7703 . "ЗОР 7 7> P .0 -C7704 "1OP g-— ,5.0 C7706 0.01 11 ?— C7708 2200P 11 ,2.6 -C7707 "0.01 : o) (T ,1.7 .R7702 '5100 R7704 100K —YA— c s j) (f ,2.7 L7703 4-7Ц 2)— ,2.7
—
-C7702 - ’0.01 T r, 11 C7705 50V0.22 X 11 C7709 50V1 7 R7703 1500 YA -C7710 "Ю00Р —IK— >7703 . VC201SPA n -C7711 -18P - _C7719 -47P
0.6
R7713
10K
-VA-
R7714
10K
Q7705
MSC2295
(NTSC 3.58 ®:ON)
:. OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE.
NOTE: DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR
ORDERING. WHEN YOU ORDER A PART, PLEASE REFER TO PARTS LIST.
4
5
6
4-9. MOTOR DRIVE & SUB AUDIO PACK SCHEMATIC DIAGRAM
D
В
TO CAPSTAN MOTOR
P1507
POWER
TRANSISTOR
2SB941PSW
P1507-15
P1507-14
P1507-13
P1507-12
P15O7-11
P1507 10
P1507-9
P1507-8
P1507-7
P1507-6
P1507-5
P1507-4
P1507-3
P1507-2
P15O7-1
TO SYSTEM CONTROL
& SERVD SECTION
PP2001
(Page: 4-7ZD-4)
P2501________
REG 12V~
М2
FG2
M1_______
_____VH +
H3-
GND (FG)
H3 +
H2-
VH-
H2+
М3
TP2050
-wy-
TP2051
VR2011
100KB
SLOW
TRACK
R2533
56K
R2534
68K
DEW SENSOR
GND
C2501 ,
50V22'
:C2502,
'50V2.2-
C2503.
25V47 '
TORQUE
DIRECTO.
CHNGE C
fl 2503
56
CUT
JUMPER
GND (CYL)
HE+
М3
VH+
M2
C2532
35V4.7
PS2501___________
REG 12V______
GND (MOTOR)
UNREG 14V
CAP ET_______
SYSTEM CTL 5V
CAP R/S/F
CURR. LIMIT
GND (FG)
FG1__________
FG2__________
SP®__________
LP®__________
SLOW TRACK
GND (CYL)
CYL ET_______
TEST_________
CYL PG/FG
DEW SENSOR
DEW
SENSOR
P2003_________
REG
CAP VM
UNREG 14V
SERVICE
MODE
TP TEST
TPSERV
W-----•
R2530
10K
SLOW
TRACK
SP
SUB
GND
TORQUE DIRECTION CHAI
R2504
J
;R2520
•0.47
(1/2W1
i г
VR2006
100KB
IMPORTANT SAFETY NOTICE:
COMPONENTS IDENTIFIED WITH THE MARK Д HAVE THE SPECIAL CHARACTERISTICS FOR SAFETY.
WHEN REPLACING ANY OF THESE COMPONENTS, USE ONLY THE SAME TYPE.
м
CAPSTAN SERVO SPEE
5
6 | 7
iN SERVO SPEED LOOP
CAPSTAN SERVO PHASE LOOP
ER SERVO SPEED LOOP
— — - CYLINDER SERVO PHASE LOOP
NOTE: DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR
ORDERING. WHEN YOU ORDER A PART, PLEASE REFER TO PARTS LIST.
11
12
T
13
14
MOTOR DRIVE & SUB AUDIO PACK ICs VOLTAGE CHART (SP MODE)
\REF. NO. MODE \ IC2501
1 2 3 4 5 6 7 В 9 10 11 12 13 14 15 16 17 18 19 20
STOP 0.5 0 0.5 13.8 0 14.4 0 4.6 0.7 2.8 0.1 0.4 0 5.0 1.5 0 2.3 2.2 2.3 2.3
PLAY 1.7 4.4 1.7 12.9 2.1 14.1 0 0.7 0.7 2.8 2.5 0.4 0.1 5.0 1.5 0 2.3 2.3 2.3 2.3
REC 1.8 4.4 1 7 12.7 2.1 14.0 0 0.7 0.7 2.8 2.5 0.4 0.1 5.0 1.5 0 2.3 2.3 2.3 2.3
F.F 6.8 13.9 6.7 9.0 12.0 14.0 0 0.8 0.7 2.8 2.3 0.5 0.2 5.0 1.5 0 2.3 2.3 2.3 2.3
REW 6.7 13.8 6.7 12.7 11.8 14.0 0 0.7 0.7 2.8 2.5 0.4 0.1 5.0 1.5 0 2.3 2.3 2.3 2.3
\ REF. NO. MODE \ IC2501
21 22 23 24 25 26 27 28 29 30 31 32
STOP 2.3 2.3 0 6.4 6.4 6.4 6.4 12.5 2.1 0.5 0 0
PLAY 2.3 2.3 0 6.4 6.4 6.4 6.4 12.5 0 1.B 0.1 0
REC 2.3 2.3 0 6.4 6.4 6.4 6.4 12.5 0 1.8 0.1 0
F.F 2.3 2.3 0 6.4 6.4 6.4 6.4 12.5 0 6.7 0.1 0
REW 2.3 2.3 0 6.4 6.3 6.4 6.4 12.5 5.0 6.5 0.2 0
\ref. no. MODE \ IC2502
1 2 3 4 5 6 7 6 9 10 11 12 13 14 15 16 17 18
STOP 14.2 14.2 0 0.5 0 2.5 2.5 1.1 1.0 2.7 5.0 3.7 3.7 3.7 1.1 14.4 14.2 0
PLAY 13.9 13.9 0.1 0.5 0 2.5 2.5 1.1 1.0 2.7 5.0 3.9 3.7 3.7 1.1 14.1 13.9 0.1
REC 13.7 13.7 0.1 0.5 0 2.5 2.5 1.1 1.0 2.7 5.0 3.7 3.7 3.7 1.1 14.0 13.7 0.1
F.F 13.8 13.8 0.1 0.5 0 2.5 2.5 1.1 1.0 2.7 5.0 3.7 3.7 3.7 1.1 14.0 13.7 0.1
REW 13.8 13.8 0.1 0.6 0 2.5 2.5 1.1 1.0 2.7 5.0 3.7 3.7 3.7 1.1 14.0 13.8 0.1
MOTOR DRIVE & SUB AUDIO PACK PINs VOLTAGE CHART (SP MODE)
\ REF. NO MODE \ PS2501
1 2 3 4 5 6 7 В 9 10 11 12 13 14 15 16 17 18
STOP 12.5 0 14.4 0.1 5.0 2.1 5.0 0 6.4 6.4 4.5 0 0 0 2.5 5.0 1.1 0
PLAY 12.5 0 14.1 2.5 5.0 0 5.0 0 6.4 6.4 4.5 0 0 0 2.5 5.0 1.1 0
REC 12.5 0 14.0 2.5 5.0 0 5.0 0 6.4 6.4 4.5 0 0 0 2.5 5.0 1.1 0
F.F 12.5 0 14.0 2.5 5.0 0 5.0 0 6.4 6.4 4.5 0 0 0 2.5 5.0 1.1 0
REW 12.5 0 14.0 2.5 5.0 5.0 5.0 0 6.4 6.4 4.5 0 0 0 2.5 5.0 1.1 0
\ref. no MODE \ PS4701
1 2 3 4 5 6 7 8 9 10 11
STOP 0 0 0 0 0 12.5 0 0 0 5.0 0
PLAY 0 0 0 0 0 12.5 0 0 0 5.0 0
REC 0 0 0 0 0 12.5 0 0 0 5.0 0
F.F 0 0 0 0 0 12.5 0 0 0 5.0 0
REW 0 0 0 0 0 12.5 0 0 0 5.0 0
MOTOR DRIVE & SUB AUDIO PACK TRANSISTORS VOLTAGE CHART (SP MODE)
\REF. no MODE \ Q4701 Q4703 Q4706 Q4707
E c В E c В E C В E C В
STOP 0 0.2 0.2 12.5 0.2 12.5 12.5 0.4 12.5 0 0.4 0.3
PLAY 0 0.2 0.2 12.5 0.2 12.5 12.5 0.4 12.5 0 0.4 0.3
REC 0 11.1 0 12.5 11.9 11.6 12.5 12.5 11.7 0 12.2 0
F.F 0 0.3 0.3 12.5 0.4 12.5 12.5 0.4 12.5 0 0.4 0.3
REW 0 0.3 0.3 12.5 0.3 12.5 12.5 0.4 12.5 0 0.4 0.3
\ref, no MODE \ QR4702 QR4703
E c в E C В
STOP 0 12.5 0 0 12.5 0
PLAY 0 12.5 0 0 12.5 0
REC 3.4 11.7 0 3.6 11.6 0
F.F 0 12.5 0 0 12.5 0
REW 0 12.5 0 0 12.5 0
4-10. LUMINANCE & CHROMINANCE PACK SCHEMATIC DIAGRAM
TO LUMINANCE/
CHROMINANCE &
AUDIO SECTION
PK3001
{Page: 4-12/E-2)
TO LUMINANCE/
CHROMINANCE &
AUDIO SECTION
РКЭ003
(Page: 4-12/C-2)
PS301__________
VIDEO OUT
GND
VIDEO IN
VSS_______
HSS_______
REC Y
PS302
TO LUMINANCE/
CHROMINANCE &
AUDIO SECTION
PK3002
(Page: 4-12/0-2)
FSC
NTSC © 2
AUTO SEARCH © 3
GND 4
EE ® 5
ART V/H/N 6
PICTURE CTL 7
ROTARY SW 9
NTSC 3.58 ® 10
PAL ®
EX. REC 5V 12
LP® 13
4.5(0)
PS3O3______
REC ®
GND
MESECAM ®
TRICK ©
REC C
D312- -
1SS2542i
1.8(2.21
1SS254
,21(3.8)
А2Ж
D308
1SS254
47K
фОЗЮ
1SS254
(B14)
(B15)(B16)
В - LINE
3 | 4
6
TIC DIAGRAM
-D30A
* 1SS2S4
n—' A'LINE 1—<—s---------------------------i—Г
(AS) (АЗ) (A2) (A 4) (AD
(B3> (B14) (B-
-I________>
6
8
9
10
<В31 (В14) (BIS) <ВЭ) (В21)
_L________I------1-------I_______L.
(B12 ) ( В 1 ) (BZ> (B1Z)
-L_______I___I______I—
( B5 )
В - LINE
10
11
12
13
14
MAIN SIGNAL PATH IN REC MODE
MAIN SIGNAL PATH IN PLAYBACK MODE
NOTE: DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR
ORDERING. WHEN YOU ORDER A PART, PLEASE REFER TO PARTS LIST.
NOTE: THE MEASUREMENT MODE OF THE DC VOLTAGE IN THE BRACKETS ( ) ON THIS DIAGRAM IS RECORD MODE
WITH PAL COLOUR SIGNAL. (SP MODE)
THE MEASUREMENT MODE OF THE DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBACK MODE
WITH PAL COLOUR SIGNAL. (SP MODE)
15
16
17
18
19
4-13. HEAD AMP SCHEMATIC DIAGRAM
P3002-14 P3002-13 REC Y *• 1 D. REC 12V 2
P3002-12 REC C 3
P3002-11 GND 4
P3002-10 RF Y 5
P3002- 9 EXJ»e6 5V 6
P3002- 8 ^F C S 7
P3002-^ H. AMP Sif' 8
P3«6- 6 HEAD ^«4 ^9
P3002- 5 TRYING ENV. /10
P3002- 4 ,El4v. SELECT / 11
P3002- 3 / CURR. EMPH ® 12
P3002- y LP ® / 13
P300^1 GND / 14
VIDEO MAIN SIGNAL PATH IN REC MODE
VII
C537
1000P
C536
1000P
777
C535
1000P
L501
100ц
R510
33K
C508
6V47
C507
0.01
HF
Q502
MSB7O9
(AMP)
VR502 I REC C |
1KB
.—“
C511
0.01
^C512
- »C513
' ‘0.01
-wv-
R513
1500
C501
22P
- -C514
" ‘0.01
R502
2200
-Wr
R503>
1K>
C504
68P
----—
L502 5
150ц 2
C503
180P
-Wv-
R515
7500
C516
0.01
R517
10K
K508 r>r>r\ VLP0145
K509 ГГУ^ VLP0145
K511 fy-v^VLP0145
5
ODE
VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE
R530
1800
-Wr
R502
2200
R503
C504
68P
-----r—th
L502 5
150ц z
R505
560
C503
180P
777
« VR501
2KB
777
|REC Y |
147K Zp-A 1
1QR502
I ''-ЗГ | MUN2213
I l-VA— I (CURR. EMPH ® :ON)
I____42 К_____I
R522
330
NOTE: DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR
ORDERING. WHEN YOU ORDER A PART, PLEASE REFER TO PARTS LIST.
NOTE: THE MEASUREMENT MODE OF THE DC VOLTAGE IN THE BRACKETS ( ) ON THIS DIAGRAM IS RECORD MODE
WITH PAL COLOUR SIGNAL. (SP MODE)
THE MEASUREMENT MODE OF THE DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBACK MODE
WITH PAL COLOUR SIGNAL. (SP MODE)
T
I
9
8
10
4-14. TIMER SCHEMATIC DIAGRAM
DP7S01 VSL0325A or VSL0333B
| NTSC SELECT 1
SW7518
ESD172352
REC| C
NTSC
NTSC
R7551
10K
OUTPUT
CIRCUIT
Q7S01
2SD1991A
IC7504
PST7023
X £ C7509 Ж D7532
~ 50V10
MA4220
POWER
VOLTAGE
DET
WHEN SERVICING THE SUPER CAPACITOR (C7517),
DO NOT SHORT BOTH (+) AND (-) TERMINAL.
• R7546
• ’ 180
j rC7526
6V47
ШС7517
VCE0073
J С C7516
6V220
C7515
C7511
56P
-4I-
R7540
330
VTR ।
□cl
C7512 ЮР
IC7SOS
S80743AL
POWER
VOLTAGE
DET
C7513
OUTPUT
CIRCUIT
D7533
1SS254
—H—
X7501 ।—>
VSX0608 —j-
&---------L
X7502 .
VSX0094,
C7514 R7535 1300
22 p (---Wr-
----WY—
R7534 1300
J-C7523
Г
R7542
220K
•21
R7539
100
-21
A
P7501
TO SYSTEM CONTROL
& SERVO SECTION
P6001
(Page: 4-7/C-19)
OSD ON ®
PAL ® 2
- 3
RESET © 5
6
TEST SIG ©
— 8
SEL MUTE ® 9
INPUT SEL A 10
S. DATA 11
S. CLOCK 12
TIMER BUS TLK 13
IC CLOCK 14
OSD CS © 15
GND 16
GND 17
AFC DEF.® 18
19
AFC S-CURVE 20
AUDIO DEF ® 21
NTSC 3.58 ® 22
DAC 23
— 24
UNREG 14V
BAND U 26
BAND VL 27
SYSTEM CTL 5V
.. 29
UNREG -29V
HEATER (-) 31
HEATER (+) 32
R7549
R7520. . .220
------------
R7518 ,^220,
R7514 ... 220
1
2
3
4
5
orVSL0333B
SEGMENT CONTROL SIGNAL
IC7501-41
IC7501-14 STOP
5.0Vp-p (10msec. div)
5
IC7501-16 STOP
5.0Vp-p (10msec. div)
NOTE; THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS OIAGRI
8 I 9 I io Г
FROL SIGNAL —— GRID CONTROL SIGNAL -----------TUNE CONTROL SIGNAL
:nt mode of THE DC voltage on this diagram is stop mode
NOTE: DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR
ORDERING. WHEN YOU ORDER A PART, PLEASE REFER TO PARTS LIST.
10
11
12
13
14
4-16. TV DEMODULATOR PACK SCHEMATIC DIAGRAM
E
D
c
в
A
IC0702
LA7975
TO RF SECTION
PP0701
(Page: 4-14/F-2)
1
PK0701
TO RF SECTION
PK0701
(Page: 4-14/G-2)
— 1
REG 12V 2
TUNER AUDIO 3
GND 4
AFC S-CURVE 6
VIDEO MUTE 6
TUNER VIDEO 7
——— 8
PAL I® 9
— 10
PP0701
AGC
IF
GND
0
I HPF h
| AMP |
C0722
0.01
R0723
270
500KHz
OSC
X0721
EFOA512KT4BE
C0728
0.01
—['MIX |*
X0702
EFCT6R0MS5
R0716
150
AW-
C0727
16V10
-thr
C0726
0.01
C0725
0.01
R0731
1K
: R0732
: ► 470
12.1
19.1
0
11.8
6.0
4.1
0
0
R0710
390K
R0727
1K
R0717
0
R0783
100K
-AAA
R0726
1200
, I C0716
*Г 16V10
AW
R0719
8200
C0724
0.047
L0701
0.22Ц
IC0701
LA7576
R0715
1BK
I— Q0701
M MSD601
I (AMP)
2
QR0701 ,„
MRN1404 m
(PAL l®:ON)
C0729
16V10
R0725
1800
j г C0706
50V0.1
R0704
2200
SIF
— C0711
4s 16V10
T0711
EQS5E
NOTE: THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM I
3
4
VIDEO SIGNAL PATH
AUDIO SIGNAL PATI
X0703
EFCT3F02W3B
L0706
5:6ц
| VCO |
T00703
EQV5EC071A
C0725
0.01
R0730
1500
X0702
EFCT6R0MS5
R0716
150
AW
C0716
16V10
R0717
0
R0727
1K
R0726
1200
-AW«
. 1 С0711
16V10
I S 1
R0718
TL0703
AW
C0704
330P
C0719
33P
C0717
30P
C0718
50V0.47
R0713
150
R0720
1K
C0720
0.01
C0715
0.01
R0722
100
R0714
47
C0714
0.047
R0715
1BK
Q0701
MSD601
(AMP)
R0709
1M
I г С0706
50V0.1
470
№
iJ
R0719
8200
C0705
150P
C0724
0.047
C0708
0.01
TO070
EQV5E
IC0701
LA7576
T0711
EQS5EC032A
C0702
0-01
L0701
0.22ц
L0705
33p
R0725
1800
LOCK
DET
R0731
1K
С0723 --
50V0-1
I ABC I-
EQ AMP
B/W
VIDEO
AMP
AGC
R0704
2200
FM
DET.
R0724
18K
C0703
0.01
R0703
1500
JT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE.
VR0701
20KB
AGO!
R0705
5600
APC TIME
CONST SW
PRE
AMP
4.8
C0701
0.01
R0702
2700
X0704
EFCH38MGP33
4.1 4.1
C0709. 12P - it . R0708 - 1500
II C0710 47P P 2
R0706 2700 C0712 0.01
NOTE: DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATI
ORDERING. WHEN YOU ORDER A PART, PLEASE REFER TO P
6 I 7
VIDEO SIGNAL PATH
AUDIO SIGNAL PATH
X0703
EFCT3F02W3B
NOTE: DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR
ORDERING. WHEN YOU ORDER A PART, PLEASE REFER TO PARTS LIST.
5
6
7
8