Samsung SV-655B User manual

VIDEO CASSETTE RECORDER
Chassis : Scorpio II
SV-655B/650B/450B/255B/250B
SV-655X/650X/450X/250X
SV-455G/254G/150G
SV-655GS/650GS/455GS/254GS/150GS
SV-H625K/H620K/H85K/H35K/H30K/H12K/H11K/H10K/5H
SV-656I/456I/256I/252I
SV-3000DS/2000DS
SV-929D/919D/718D/717D/695D/690D/685D/680D/675D/670D
SERVICE
1. Precautions
2. Alignment and Adjustment
3. Exploded View and Parts List
4. Electrical Parts List
5. PCB Diagrams
6. Schematic Diagrams
Manual
VIDEO CASSETTE RECORDER CONTENTS
For mechanical disassembly and adjustment, refer to the “Mechanical Manual” (TS-10A AC82-00023A).
SERVICE MANUAL SV-655B/655X/455G/655GS/H625K/656I/3000DS/929D
ELECTRONICS
© Samsung Electronics Co., Ltd. MAR. 2002
Printed in Korea
AC82-00050A
VIDEO L AUDIO R
LINEIN
POWER EJECT
TV/VCR MENU
CHANNEL
TRACKING
REC
INPUT
TAPESPEED
P/S STOP
REW F.F
SV-3000DS/650GS/H620K/H625K/656I
SV-2000DS
SV-455G/455GS/H80K
SV-H11K
SV-H30K
SV-655B/655X/685D/680D/H12K/256I
SV-255B/250B/250X/675D/670D/254G/254GS/H35K/456I
SV-650B/450B/650X/450X/695D/690D/150G/150GS/H85K/H10K/252I
STANDBY/ON
PLAY
STOP
REC
PROG
EJECT
STANDBY/ON
II P/S
STOP REW
F.F
PLAY
EJECT
STANDBY/ON
PROG
STOP
REC II P/S
REW
PLAY
F.F
REC
CHANNEL
EJECT
STANDBY/ON
STOP IIII P/S
PLAY
REW F.F
SV-718D/717D/5H
SV-455G/455GS
EJECT
STANDBY/ON
PROG
REC STOP PLAY
REW
F.F
VIDEO L AUDIO R
AUX
REC
PROG
EJECT
STANDBY/ON
STOP
REW
PLAY
F.F
EJECT
STANDBY/ON
SHARPNESS STOP
REC
REW
PLAY
F.F
EJECT
STANDBY/ON
VIDEO AUDIO
LINEIN 2
PROG REC STOP
PLAY
REW F.F

Samsung Electronics 2-1
2. Alignment and Adjustment
2-1 Reference
1) X-Point (Tracking center) adjustment, “Head switching adjustment” and “NVRAM option setting” can be adjusted with remote control.
2) When replacing the Micom (IC601) and NVRAM (IC605 ; EEPROM) be sure to adjust the “Head switching adjustment” and
“NVRAM option setting”.
3) When replacing the cylinder ass’y, be sure to adjust the “X-Point” and “Head switching adjustment”.
4) Among Samsung VCR remote control used for adjustment as a accessory, only the remote control that has figures buttons (0 ~ 9) is
available for all adjustment regardless of chassis.
5) How to adjustment.
- Press the “TEST” button on Main PCB/F/AV PCB/Function PCB to set the adjustment mode.
- If the corresponding adjustment button is pressed, the adjustment is performed automatically.
- If the adjustment is completed, be sure to turn the power off.
2-1-1 Location of adjustment button of remote control
Fig. 2-1
Remote Control for adjustment is not supplied as a Service Jig.
OK
VCR STANDBY/ON TV STANDBY/ON
SLOW
SHUTTLE
V-LOCK
CLR/RST F.ADV INDEX
TV VCR INPUT
REPEAT
VOL PROG/TRK
AUDIO
REC MENU
SPEED DUB TV/VCR TIMER
DISP./
SELECT
-/--
X-Point (Tracking Center) Adjustment
("5" Button)
Head Switching Adjustment
("SPEED" Button)
NVRAM Option Setting
("MENU" Button)

2-2 Samsung Electronics
Alignment and Adjustment
2-1-2 SW718 location for adjustment mode setting (Australia, Newzealand Models Only)
Fig. 2-2 Main PCB (Top View)
PRESS

Alignment and Adjustment
Samsung Electronics 2-3
Fig. 2-3 Main PCB (Top View)
2-1-3 SW718 location for adjustment mode setting (Other Models)
PRESS

2-4 Samsung Electronics
Alignment and Adjustment
Fig. 2-4 F/AV PCB (Top View)
PRESS
2-1-4 SW775 (TEST) location for adjustment mode setting (SV-3000DS/650GS/H625K/H620K/656IOnly)
Fig. 2-5 Function PCB (Top View)
PRESS
2-1-5 SW775 (TEST) location for adjustment mode setting (SV-655GS)

Alignment and Adjustment
Samsung Electronics 2-5
2-2 Mechanical Adjustment
Note : Refer to the Mechanical Manual “TS-10A (AC82-00023A)” for the adjustment and confirmation of
ass’y full deck.
2-2-1 The number and position of test point
Test point : TP301 (Envelope)
TP302 (Audio output)
TP602 (H’D S/W -Trigger)
Fig. 2-6 Location of Test point (Main PCB-Top View)
PRESS
2-2-2 ACE Head Position (X-Point) Adjustment
(See the 2-2-1(d) ACE Head Position (X-Point) Adjustment
on page 2-2 of the Mechanical Manual)
1) Playback the alignment tape (Color bar).
2) Press the “TEST” button on Main PCB/F/AV
PCB/Function PCB to set the adjustment mode.
(See Fig. 2-2, 2-3, 2-4 and 2-5)
3) Press the “5” button of remote control then
adjustment is operated automatically. (See Fig. 2-1)
4) Connect the CH-1 probe to TP301 (Envelope) the
CH-2 probe to TP602 (H’D switching pulse) and
then trigger to CH-1.
5) Insert the (-) driver into the X-Point adjustment
hole and adjust it so that envelope waveform is
maximum.
6) Turn the Power off.

2-6 Samsung Electronics
Alignment and Adjustment
2-3 Head Switching Point Adjustment
1) Playback the alignment tape.
2) Press the “TEST” button on Main PCB/F/AV PCB/Function PCB to set the adjustment mode.
(See Fig. 2-2, 2-3, 2-4 and 2-5)
3) Press the “SPEED” button of remote control then adjustment is operated automatically. (See Fig. 2-1)
4) Turn the Power off.
2-4 NVRAM Option Setting
1) Press the “TEST” button on Main PCB/F/AV PCB/Function PCB to set the adjustment mode.
(See Fig. 2-2, 2-3, 2-4 and 2-5)
2) Press the “MENU” button on the remote control about 5 seconds then option setting display is appeared.
(See Fig. 2-7)
3) Select the option number (See Table 2-1) of corresponding model with “CURSOR” button on the
remote control.
4) If selecting the option number is completed, press the “OK” button of remote control.
(If “OK” button is pressed, the selected number is changes reversed color. ; See Fig. 2-7)
5) Press the “MENU” button of remote control again to store the option number.
(“PLEASE WAIT” is displayed for a second as shown Fig. 2-8 and this setting is completed.)
6) Turn the Power off.
1) NVRAM Option is adjusted at production line basically.
2) In case Micom (IC601) and NVRAM (IC605 ; EEPROM) is replaced, be sure to set the corresponding option number of the repaired
model. (If the option is not set, the unit is not operated.)
Fig. 2-7
AUDIO OUTPU
HEAD SWITCHIN
ENVELOPE
Fig. 2-8

Alignment and Adjustment
Samsung Electronics 2-7
<Table 2-1 NVRAM Option Number>
COUNTRY MODELS OPTION NUMBER
Austrslia SV-655B 1, 6, 7, 9, 10, 12, 15, 20, 28, 32, 33, 34, 38, 42, 45, 47, 49, 51, 55, 56, 57, 60, 61, 63, 65, 72
SV-650B 6, 7, 9, 10, 12, 20, 28, 32, 33, 34, 38, 42, 45, 47, 49, 50, 51, 52, 55, 56, 57, 60, 61, 63, 65, 72
SV-450B 9, 10, 12, 20, 28, 32, 33, 34, 38, 42, 45, 47, 49, 50, 51, 52, 55, 56, 57, 60, 61, 63, 65, 72
SV-255B 1, 10, 12, 15, 20, 28, 32, 33, 34, 38, 42, 45, 47, 49, 50, 55, 56, 57, 60, 61, 63, 65, 71, 72
SV-250B 10, 12, 20, 28, 33, 34, 38, 42, 45, 47, 49, 50, 55, 56, 57, 60, 61, 63, 65, 71, 72
Newzealand SV-655X 1, 6, 7, 8, 9, 10, 12, 15, 20, 32, 38, 42, 45, 47, 49, 51, 55, 56, 57, 60, 61, 63, 65, 72
SV-650X 6, 7, 8, 9, 10, 12, 20, 28, 32, 33, 34, 38, 42, 45, 47, 49, 50, 51, 52, 55, 56, 57, 60, 61, 63, 65, 72
SV-450X 9, 10, 12, 20, 32, 38, 42, 45, 47, 49, 50, 51, 52, 55, 56, 57, 60, 61, 63, 65, 72
SV-250X 10, 12, 20, 38, 42, 45, 47, 49, 50, 55, 56, 57, 60, 61, 63, 65, 71, 72
Iran SV-3000DS 6, 7, 8, 9, 10, 12, 15, 20, 22, 29, 32, 34, 36, 39, 42, 44, 47, 50, 52, 56, 57, 60, 61, 63, 65
SV-2000DS 6, 7, 8, 9, 10, 12, 15, 20, 22, 29, 32, 34, 36, 38, 42, 44, 47, 50, 56, 57, 60, 61, 63, 65
SV-919D 9, 10, 12, 15, 20, 22, 24, 29, 32, 34, 36, 38, 42, 44, 47, 56, 57, 60, 61, 63, 65
SV-929D 9, 10, 12, 15, 20, 22, 24, 29, 32, 34, 36, 38, 42, 44, 47, 56, 57, 60, 61, 63, 65
SV-717D 10, 12, 15, 20, 22, 32, 34, 36, 38, 42, 44, 47, 52, 56, 57, 60, 61, 63, 65, 71
SV-718D 10, 12, 15, 20, 22, 32, 34, 36, 38, 42, 44, 47, 52, 56, 57, 60, 61, 63, 65, 71
SV-670D 10, 12, 20, 22, 34, 36, 37, 40, 44, 47, 49, 50, 56, 57, 60, 61, 63, 65, 68, 71
SV-675D 10, 12, 20, 22, 34, 36, 37, 40, 44, 47, 49, 50, 56, 57, 60, 61, 63, 65, 68, 71
SV-680D 10, 12, 20, 22, 34, 36, 37, 40, 44, 47, 49, 51, 56, 57, 60, 61, 63, 65, 68, 71
SV-685D 10, 12, 20, 22, 34, 36, 37, 40, 44, 47, 49, 51, 56, 57, 60, 61, 63, 65, 68, 71
SV-690D 10, 12, 20, 22, 34, 36, 37, 40, 44, 47, 49, 50, 51, 52, 56, 57, 60, 61, 63, 65, 68, 71
SV-695D 10, 12, 20, 22, 34, 36, 37, 40, 44, 47, 49, 50, 51, 52, 56, 57, 60, 61, 63, 65, 68, 71
UAE SV-650GS 6, 7, 8, 9, 10, 12, 15, 20, 22, 29, 32, 34, 36, 39, 42, 44, 47, 50, 52, 55, 57, 60, 61, 63, 65
SV-455G 9, 10, 12, 15, 20, 22, 24, 32, 34, 36, 38, 42, 44, 47, 49, 52, 55, 57, 60, 61, 63, 65
SV-455GS 9, 10, 12, 15, 20, 22, 24, 32, 34, 36, 38, 42, 44, 47, 49, 52, 55, 57, 60, 61, 63, 65
SV-254G 10, 12, 15, 20, 22, 34, 36, 38, 42, 44, 47, 49, 50, 55, 57, 60, 61, 63, 65, 71
SV-254GS 10, 12, 15, 20, 22, 34, 36, 38, 42, 44, 47, 49, 50, 55, 57, 60, 61, 63, 65, 71
SV-150G 10, 12, 20, 22, 34, 36, 37, 40, 44, 47, 49, 50, 51, 52, 55, 57, 60, 61, 63, 65, 68, 71
SV-150GS 10, 12, 20, 22, 34, 36, 37, 40, 44, 47, 49, 50, 51, 52, 55, 57, 60, 61, 63, 65, 68, 71
SV-H12K 10, 12, 20, 21, 33, 34, 36, 37, 40, 44, 47, 49, 51, 55, 56, 57, 60, 61, 63, 65, 68, 71
Lebanon SV-650GS 6, 7, 8, 9, 10, 12, 15, 20, 22, 29, 32, 34, 36, 39, 42, 44, 47, 50, 52, 55, 57, 60, 61, 63, 65
SV-455GS 9, 10, 12, 15, 20, 22, 24, 32, 34, 36, 38, 42, 44, 47, 49, 52, 55, 57, 60, 61, 63, 65
SV-254GS 10, 12, 15, 20, 22, 34, 36, 38, 42, 44, 47, 49, 50, 55, 57, 60, 61, 63, 65, 71
SV150GS 10, 12, 20, 22, 34, 36, 37, 40, 44, 47, 49, 50, 51, 52, 55, 57, 60, 61, 63, 65, 68, 71
Saudi arabia SV-650GS 6, 7, 8, 9, 10, 12, 15, 20, 22, 29, 32, 34, 36, 39, 42, 44, 47, 50, 52, 55, 57, 60, 61, 63, 65
LEBANON SV-455G 9, 10, 12, 15, 20, 22, 24, 32, 34, 36, 38, 42, 44, 47, 49, 52, 55, 57, 60, 61, 63, 65
SV-455GS 9, 10, 12, 15, 20, 22, 24, 32, 34, 36, 38, 42, 44, 47, 49, 52, 55, 57, 60, 61, 63, 65
SV-254G 10, 12, 15, 20, 22, 34, 36, 38, 42, 44, 47, 49, 50, 55, 57, 60, 61, 63, 65, 71
SV-254GS 10, 12, 15, 20, 22, 34, 36, 38, 42, 44, 47, 49, 50, 55, 57, 60, 61, 63, 65, 71
SV-150G 10, 12, 20, 22, 34, 36, 37, 40, 44, 47, 49, 50, 51, 52, 55, 57, 60, 61, 63, 65, 68, 71
SV-150GS 10, 12, 20, 22, 34, 36, 37, 40, 44, 47, 49, 50, 51, 52, 55, 57, 60, 61, 63, 65, 68, 71

2-8 Samsung Electronics
Alignment and Adjustment
COUNTRY MODELS OPTION NUMBER
Egypt/CKD SV-650GS 6, 7, 8, 9, 10, 12, 15, 20, 22, 29, 32, 34, 36, 39, 42, 44, 47, 50, 52, 55, 57, 60, 61, 63, 65
SV-455G 9, 10, 12, 15, 20, 22, 24, 32, 34, 36, 38, 42, 44, 47, 49, 52, 55, 57, 60, 61, 63, 65
SV-455GS 9, 10, 12, 15, 20, 22, 24, 32, 34, 36, 38, 42, 44, 47, 49, 52, 55, 57, 60, 61, 63, 65
SV-254G 10, 12, 15, 20, 22, 34, 36, 38, 42, 44, 47, 49, 50, 55, 57, 60, 61, 63, 65, 71
SV-254GS 10, 12, 15, 20, 22, 34, 36, 38, 42, 44, 47, 49, 50, 55, 57, 60, 61, 63, 65, 71
SV-150G 10, 12, 20, 22, 34, 36, 37, 40, 44, 47, 49, 50, 51, 52, 55, 57, 60, 61, 63, 65, 68, 71
SV-150GS 10, 12, 20, 22, 34, 36, 37, 40, 44, 47, 49, 50, 51, 52, 55, 57, 60, 61, 63, 65, 68, 71
Israel SV-455G 9, 10, 12, 15, 20, 22, 24, 32, 34, 36, 38, 42, 44, 47, 49, 52, 57, 60, 61, 63, 65
SV-455GS 9, 10, 12, 15, 20, 22, 24, 32, 34, 36, 38, 42, 44, 47, 49, 52, 57, 60, 61, 63, 65
SV-254G 10, 12, 15, 20, 22, 34, 36, 38, 42, 44, 47, 49, 50, 57, 60, 61, 63, 65, 71
SV-254GS 10, 12, 15, 20, 22, 34, 36, 38, 42, 44, 47, 49, 50, 57, 60, 61, 63, 65, 71
Reunion SV-H620K 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 20, 21, 29, 32, 33, 34, 36, 39, 42, 45, 47, 50, 52, 55, 56, 60, 61, 63, 65
Tunis SV-H80K 9, 10, 11, 12, 13, 14, 15, 20, 21, 24, 32, 33, 34, 36, 38, 42, 45, 47, 49, 52, 55, 56, 60, 61, 63, 65
Algeciras SV-H30K 10, 11, 12, 13, 14, 15, 20, 21, 24, 33, 34, 36, 38, 42, 45, 47, 49, 51, 52, 55, 56, 60, 61, 63, 65, 71
Morocco SV-H10K 10, 12, 20, 21, 33, 34, 36, 37, 40, 44, 47, 49, 50, 51, 52, 55, 56, 57, 60, 61, 63, 65, 68, 71
Kenya SV-H625K 6, 7, 8, 9, 10, 12, 15, 20, 21, 29, 32, 33, 34, 36, 39, 42, 44, 47, 50, 52, 55, 56, 57, 60, 61, 63, 65
SV-H85K 9, 10, 12, 15, 20, 21, 32, 33, 34, 36, 38, 42, 44, 47, 49, 50, 51, 52, 55, 56, 57, 60, 61, 63, 65
Nigeria SV-H35K 10, 12, 15, 20, 21, 33, 34, 36, 38, 42, 44, 47, 49, 50, 55, 56, 57, 60, 61, 63, 65, 71
Algeria SV-H12K 10, 12, 20, 21, 33, 34, 36, 37, 40, 44, 47, 49, 51, 55, 56, 57, 60, 61, 63, 65, 68, 71
LIBYAN ARAB SV-H11K 10, 12, 20, 21, 33, 34, 36, 37, 40, 44, 47, 51, 55, 56, 57, 60, 61, 63, 65, 68, 71
SV-5H 10, 12, 20, 33, 34, 36, 37, 40, 44, 47, 51, 55, 56, 57, 60, 61, 63, 65, 68, 71
Sauth Africa SV-656I6, 7, 8, 9, 10, 12, 15, 20, 25, 27, 39, 32, 35, 39, 41, 42, 44, 47, 50, 52, 55, 56, 57, 60, 61, 63, 65
SV-456I9, 10, 12, 15, 20, 25, 27, 32, 35, 38, 41, 42, 44, 47, 49, 50, 55, 56, 57, 60, 61, 63, 65
SV-256I10, 12, 20, 25, 27, 35, 38, 41, 42, 44, 47, 49, 51, 55, 56, 57, 60, 61, 63, 65, 71
SV-252I10, 12, 20, 25, 27, 35, 38, 41, 42, 44, 47, 49, 50, 51, 52, 55, 56, 57, 60, 61, 63, 65, 71

Samsung Electronics 6-1
6. Schematic Diagrams
◆Block Identification of Main PCB - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-2
6-1 S.M.P.S. (220~240 Voltage) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-3
6-2 S.M.P.S. (Free Voltage) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-4
6-3 Power Drive - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-5
6-4 System Control/Servo/Display- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-6
6-5 Audio/Video - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-8
6-6 Hi-Fi (Option) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-10
6-7 TM - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-12
6-8 SECAM (Option) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-13
6-9 A2/NICAM - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-14
6-10 OSD/VPS/PDC - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-15
6-11 Input-Output (2 Scart Jack); SV-H620K/H80K/H30K Only - - - - - - - - - - - - - - 6-16
6-12 Input-Output (1 Scart Jack) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-17
6-13 Input-Output (RCA Jack) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-18
6-14 Sub (SV-3000DS/650GS/H625K/H620K/656IOnly) - - - - - - - - - - - - - - - - - - - 6-19
6-15 Sub (Other Models)- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-20

Schematic Diagrams
6-2 Samsung Electronics
For schematic Diagram
- Resistors are in ohms, 1/8W unless otherwise noted.
Note
Special note :
Most semiconductor devices are electrostatically sensitive and therefore require the special handling techniques described under the
“electrostatically sensitive (ES) devices” section of this service manual.
Note :
Do not use the part number shown on this drawing for ordering. The correct part number is shown in the parts list (may be slightly different
or amended since this drawing was prepared).
Important safety notices :
Components identified with the mark have the special characteristics for safety. When replacing any of these components.
Use only the same type.
◆Block Identification of Main PCB

Schematic Diagrams
Samsung Electronics 6-3
6-1 S.M.P.S. (220~240 Voltage)
PWR OFF
PWR ON
Œ
´
ŒQ1SR01-COLLECTOR
POWER OFF/380Vp-p
´Q1SR01-COLLECTOR
POWER ON/400Vp-p

Schematic Diagrams
6-4 Samsung Electronics
6-2 S.M.P.S. (Free Voltage)
ŒIC1SF1
POWER OFF/430Vp-p
´IC1SF1
POWER ON/450Vp-p
PWR OFF
PWR ON
Œ
´

Schematic Diagrams
Samsung Electronics 6-5
6-3 Power Drive

Schematic Diagrams
6-6 Samsung Electronics
Ø
ˆ
∏
ˇ
¨
˝
”
’
6-4 System Control/Servo/Display

Schematic Diagrams
Samsung Electronics 6-7
IC601 VOLTAGE TABLE WAVEFORM
IC601 NEC4928
ˇIC601-3
PB/5.1Vp-p
”TP601-89
PB/3.6Vp-p
¨IC601-9
PB/2.7Vp-p
’IC601-18
4.8Vp-p
ˆIC601-10
PB/2.7Vp-p
˝IC601-100
PB/4.3Vp-p
ØCN604-93
PB/5.1Vp-p
∏IC610-97
PB/5.1V
PIN
1 0.0 0.0 4.8
2 0.0 0.0 0.0
3 3.6 0.0 3.6
4 3.1 5.2 0.0
5 0.0 5.2 5.1
6 5.1 5.2 5.1
7 5.2 5.2 5.1
8 4.2 4.1 4.1
9 2.6 2.6 2.6
10 2.7 5.2 2.7
11 5.2 5.2 5.2
12 2.1 0.3 2.3
13 2.3 2.1 2.2
14 5.2 5.2 5.2
15 2.1 2.2 2.1
16 2.5 2.5 2.4
17 0.0 0.0 0.0
18 2.4 2.4 2.4
19 2.2 2.2 2.8
20 5.2 5.2 5.2
21 0.0 0.0 0.0
22 0.0 0.0 0.0
23 2.3 2.7 0.0
24 2.7 2.3 2.8
25 0.0 0.0 0.0
26 0.0 0.0 0.0
27 4.6 4.6 4.6
28 4.6 4.6 4.5
29 2.4 2.8 2.8
30 0.0 5.2 0.0
31 0.0 0.0 0.0
32 4.7 4.7 4.7
33 5.1 0.0 0.0
34 1.2 1.4 0.7
35 0.0 0.0 0.0
36 5.2 5.2 5.2
37 1.4 1.3 0.7
38 0.0 0.0 5.1
39 0.0 0.0 0.0
40 0.0 0.0 0.0
41 5.2 5.2 5.2
42 5.2 5.1 5.1
43 0.0 0.0 5.1
44 0.0 0.0 0.0
45 0.0 0.0 0.0
46 5.2 5.1 5.1
47 5.2 5.2 5.2
48 5.2 5.2 5.2
49 5.2 5.2 5.2
50 0.1 0.1 5.2
IC601 UPD784927GF
PLAY STOP REC
MODE PIN
51 0.0 0.0 0.0
52 0.0 0.1 0.1
53 5.2 0.1 0.2
54 5.2 5.2 5.2
55 5.2 5.2 5.2
56 5.2 5.2 5.2
57 0.0 0.0 0.0
58 5.2 5.2 5.2
59 5.1 5.2 5.2
60 3.3 5.2 5.2
61 5.2 5.2 5.2
62 1.2 2.5 1.5
63 0.0 0.0 0.0
64 5.2 0.0 5.2
65 0.0 0.0 0.0
66 4.7 4.8 4.7
67 5.2 0.0 0.0
68 0.0 0.0 0.0
69 5.2 0.0 5.2
70 5.2 1.4 5.2
71 0.0 0.0 0.0
72 0.0 0.0 0.0
73 0.0 0.0 0.0
74 0.0 0.0 0.0
75 1.6 1.2 1.5
76 5.2 5.2 5.2
77 5.1 5.2 5.1
78 0.0 0.0 0.0
79 0.0 0.4 0.4
80 3.7 3.7 3.7
81 0.1 0.2 0.2
82 2.3 0.6 0.0
83 1.3 0.0 0.0
84 1.4 1.8 0.0
85 2.6 2.6 2.8
86 2.6 2.6 2.2
87 2.6 2.6 2.6
88 2.6 2.6 2.6
89 2.6 2.6 0.0
90 2.6 2.6 2.6
91 0.0 0.0 0.0
92 5.2 5.2 5.2
93 2.6 5.1 2.6
94 1.4 1.7 1.4
95 1.3 1.5 1.3
96 1.4 1.7 1.3
97 1.3 0.1 1.3
98 0.1 0.1 0.1
99 0.1 0.1 0.3
100 0.2 0.2 0.2
IC601 UPD784927GF
PLAY STOP REC
MODE PIN
1 0.0 0.0 0.0
2 0.0 0.0 0.0
3 0.0 0.0 0.0
4 0.0 0.0 0.0
5 5.2 5.2 5.2
6 0.0 0.0 0.0
7 4.6 4.7 4.7
8 4.7 4.6 4.6
IC604 KA7533
1 5.2 5.2 5.2
2 0.0 0.0 0.0
3 5.0 5.1 5.0
IC605 24LCXX
PLAY STOP REC
MODE

Schematic Diagrams
6-8 Samsung Electronics
CHROMA RECORDING - - - - CHROMA PLAYBACK VIDEO SIGNAL IN/OUT LUMINANCE RECORDING - - - - LUMINANACE PLAYBACK AUDIO PROCESS IN - - - - AUDIO PROCESS OUT

Ò
ı
Ô
Æ
Ú
6-5 Audio/Video

Schematic Diagrams
Samsung Electronics 6-9
IC301 VOLTAGE TABLE WAVEFORM
IC301 LA71750M
PIN
1 5.2 5.2 0.7
2 0.0 0.0 0.6
3 2.3 2.3 2.4
4 0.3 0.4 0.8
5 2.3 2.3 2.3
6 2.3 2.3 2.2
7 2.3 2.3 2.2
8 2.3 2.3 2.2
9 2.2 2.2 2.2
10 2.3 2.2 2.3
11 2.4 2.3 2.3
12 0.0 0.0 0.0
13 2.2 2.2 2.2
14 0.0 0.0 0.0
15 2.3 2.3 2.2
16 0.2 5.2 5.1
17 2.3 2.3 2.2
18 5.2 5.2 5.1
19 4.1 4.1 4.0
20 0.0 0.0 0.0
21 1.9 3.2 3.2
22 2.6 2.6 2.6
23 2.6 2.6 2.6
24 5.0 5.0 5.0
25 3.5 0.1 0.1
26 1.3 1.5 1.5
27 2.1 2.1 2.1
28 4.0 4.1 4.0
29 2.6 2.6 2.7
30 0.4 0.0 0.0
31 1.4 1.3 1.2
32 4.7 4.7 4.7
33 2.9 3.0 2.9
34 0.0 0.0 0.0
35 2.0 2.0 2.0
36 3.0 3.0 3.0
37 1.9 2.0 1.9
38 2.1 2.1 2.0
39 9.5 9.5 9.4
40 0.0 0.0 0.0
41 0.0 0.0 0.0
42 5.1 5.2 5.1
43 2.4 2.4 2.4
44 4.1 0.0 0.0
45 2.5 2.5 2.5
46 2.6 2.7 4.6
47 4.2 4.2 4.2
48 2.9 3.0 3.0
49 3.8 3.0 3.0
50 1.9 1.9 1.9
IC301 LA71750M
PLAY STOP REC
MODE PIN
51 0.0 0.0 0.0
52 1.9 1.9 1.9
53 2.4 2.4 2.4
54 1.9 1.9 1.9
55 5.2 5.2 5.2
56 2.2 2.3 2.3
57 2.2 2.0 2.0
58 2.8 3.1 3.1
59 3.0 2.9 2.9
60 1.6 1.5 1.5
61 1.7 19.0 1.9
62 0.0 0.0 0.0
63 1.2 1.2 1.2
64 0.0 0.0 0.0
65 1.5 1.8 1.8
66 5.2 5.2 5.2
67 0.2 0.2 0.2
68 4.7 4.7 4.7
69 4.5 4.7 4.5
70 2.8 5.2 2.8
71 0.0 3.3 3.3
72 5.0 5.0 5.0
73 1.9 2.2 2.2
74 2.6 2.5 2.5
75 0.7 2.4 2.4
76 0.8 2.4 2.4
77 1.6 1.5 1.5
78 3.4 2.6 2.5
79 1.9 1.9 2.5
80 0.9 0.9 4.2
81 1.1 1.1 1.1
82 0.0 0.0 0.0
83 2.6 0.7 0.0
84 2.7 0.6 0.0
85 0.0 0.0 1.0
86 0.4 0.4 0.0
87 0.7 1.9 2.5
88 0.7 1.9 0.7
89 0.7 1.9 0.7
90 0.7 1.9 0.7
91 5.2 5.2 4.1
92 0.0 0.0 0.0
93 1.9 1.9 4.3
94 1.9 1.9 4.3
95 1.9 1.9 4.3
96 1.9 1.9 4.4
97 0.0 0.0 0.0
98 2.3 2.3 2.3
99 2.3 2.3 2.3
100 2.3 2.3 2.4
IC301 LA71750M
PLAY STOP REC
MODE ÔIC301-100
REC/1.5Vp-p
ÆIC301-94
REC(SP)/3.0Vp-p
IC301-65
PB/2.1Vp-p
ıIC301-11
REC/102Vp-p
ÒIC301-21
PB/320mVp-p
ÚIC301-88
REC(LP)/2.5Vp-p

Schematic Diagrams
6-10 Samsung Electronics
AUDIO PROCESS (IN) - - - - AUDIO PROCESS (OUT) AUDIO PB PROCESS - - - - AUDIO REC PROCESS
C L IN
AV L IN
C R IN
AUX R IN
AV R IN
TU L IN
(MTS MODEL : 43K)
TU L IN
AUX L IN
6-6 Hi-Fi (Option)

Schematic Diagrams
Samsung Electronics 6-11
IC501 VOLTAGE TABLE
IC501 LA72646M
PIN
1 0.0 0.0 0.0
2 2.5 2.5 2.5
3 9.5 9.5 9.5
4 2.5 2.5 2.5
5 4.9 4.9 4.8
6 2.0 1.9 1.9
7 0.0 0.0 0.0
8 0.0 0.0 0.0
9 0.0 0.0 0.0
10 0.0 0.0 0.0
11 0.0 0.0 0.0
12 4.8 4.8 4.8
13 2.6 2.0 2.0
14 2.5 2.5 2.5
15 4.8 4.9 4.8
16 2.5 2.5 2.5
17 0.0 0.3 0.3
18 1.3 0.0 0.0
19 2.6 2.5 2.5
20 2.2 2.5 2.5
21 2.6 2.5 2.5
22 2.6 2.5 2.5
23 4.2 0.0 0.0
24 1.9 0.1 3.9
25 0.0 0.0 0.0
26 1.9 0.1 3.9
27 1.9 0.1 3.9
28 0.0 0.5 2.1
29 0.0 0.0 0.0
30 2.1 4.1 3.9
31 2.3 4.1 3.9
32 4.8 4.4 4.8
33 2.2 0.4 0.0
34 3.5 2.5 2.5
35 2.5 0.0 0.0
36 2.7 4.9 4.8
37 0.0 0.4 0.0
38 4.4 4.6 4.5
39 4.5 4.6 4.5
40 2.8 0.0 2.3
41 2.6 2.5 2.5
42 2.5 2.5 2.5
43 2.6 2.5 2.5
44 2.6 2.5 2.5
45 0.2 0.0 0.0
46 4.8 4.9 0.4
47 2.5 2.5 5.0
48 2.6 2.0 2.0
49 0.0 0.0 0.0
50 0.0 0.0 0.0
IC501 LA72646M
PLAY STOP REC
MODE