Samsung TB14C52S/XEC User manual

Television Video Cassette Recorder
Chassis : C15A
Model: TB14C52S/XEC TB20C52S/XET
TB14C5S2S/XEG TB20C5DF2S/XEG
TB14C5T2S/XEC TB20C5DF2S/XET
TB14C5DT2S/XET TB20C5DT2S/XEC
TB21B5DF2S/XEC
Television Video Cassette Recorder CONTENTS
Precautions
Specifications
Disassembly and Reassembly
Alignment and Adjustment (Mechanical)
Alignment and Adjustment (Electrical)
Troubleshooting
Exploded View and Parts List
Electric Parts List
Block Diagram
PCB Layout
Wiring Diagram
Schematic Diagrams
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.

ELECTRONICS
©Samsung Electronics Co., Ltd. MAR.1999
Printed in Korea
3C15A-2005

Samsung Electronics 2-1
2. Specifications
TELEVISION PART
Colour systems PAL(option) / SECAM(option) (UK;PAL)
TV standards L/L’(option), B/G(option), D/K(option) (UK;I)
Number of channels 100 programmes
Reception range/cable TV Hyperband/interband tuner
Aerial input 75 Ohms, coaxial cable
VCR PART
Format VHS standard
(PAL / SECAM(option) / MESECAM(option) / NTSC in playback only)
Heads Video: 2 rotary heads, LP(option), 4 Heads(option)
Audio/Control: 1 stationary head (linear)
Erase: 1 full track erase head
Luminance FM azimuth recording
Colour Down converted subcarrier phase shifted direct recording
FF/REW time Less than 100 seconds in FF with E-120
Wow and flutter (WTD) 0.4% maximum (SP)
Frequency response 100 Hz - 8 KHz
GENERAL
Power supply 220-240V~, 50Hz (110-260V~, 50/60Hz; option)
Consumption 14” (60W)
20”/21” (90W)
Audio output power 14” (1.5W)
20” (3W)
21” (1.5Watts x 2)
Number of loudspeakers 14”/20” (1)
21” (2)
Tube size 14” (37cm/34cmV)
20” (51cm/48cmV)
21” (55cm/51cmV)
Tube type BLACK MATRIX
Sockets 1 full RGB SCART on the rear
1 RCA input (audio and video) on the front
Earphones output (3.5 mm mini-jack)
1 aerial/cable TV coaxial input
Dimensions (W x D x H) 14” (368.5 x 388 x 381)
20” (488 x 477 x 488)
21” (520 x 495 x 508)
Weight 14” (11.7 kg)
20” (20.4 kg)
21” (23.2 kg)
Operating temperature 5°C - 40°C (41°F - 104°F)
Relative humidity 10% - 75%
T he descriptions and characteristics given in this booklet are given for information purposes only and
are subject to modification without notice.

Disassembly and Reassembly
Samsung Electronics 3-1
1. Remove the screws located on the side of the back cover.
3. Disassembly and Reassembly
3-1 Disassembly
3-1-1 Back Cover Removal

Disassembly and Reassembly
3-2 Samsung Electronics
3-1-2 Main Assembly Removal
1. Release two connectors between sub PCB and Main Assembly.
2. Pull the Main Assembly backwards to remove.

Disassembly and Reassembly
Samsung Electronics 3-3
3-1-3 Monitor Frame Removal
1. Remove 3 screws from the Main Assembly. Remove the dust cover.
2. Remove 4 screws from the Deck Assembly.

Disassembly and Reassembly
3-4 Samsung Electronics
3-1-4 Deck Assembly Removal 3-1-5 Main Assembly Removal
1. Remove 2 screws holding the bottom cover.
2. Remove one screw from Main PCB
Assembly. Take off the deck Assembly.
1. Remove 2 screws holding the upper chassis
housing.
2. Remove 3 screws holding the deck assembly.
3. Lift the deck assembly upward to remove.

Disassembly and Reassembly
Samsung Electronics 3-5
3-1-6 Top Cabinet Removal
1. Remove two (2) screws located at the rear of
the top cabinet.
2. Carefully lift the back of the top cabinet and
shield it to the rear to remove.
3-1-7 Top Cabinet Removal 3-1-8 Top Cabinet Removal

Samsung Electronics 4-1
4-1 Deck Parts Locations
4-1-1 Deck (Top View)
Œ´ˇ
¨ˆØ∏
Fig. 4-1 Top parts Location-1
4. Alignments and Adjustments (Mechanical)
ŒBRACKET FL TOP
´GEAR FL CAM
ˇMOTOR LOADING ASS’Y
¨LEVER FL ARM ASS’Y
ˆHOLDER FL CASSETTE ASS’Y
ØLEVER FL DOOR
∏SLIDER FL DRIVE

4-1-2 Deck (Top View)
Alignments and Adjustments (Mechanical)
4-2 Samsung Electronics
Œ´ˇ ¨ˆØ∏”
’˝ÔÒÚÆı
Ò
Fig. 4-2 Top Parts Location-2
ŒFE HEAD
´PLATE CYLINDER C
ˇCYLINDER ASS’Y
¨PLATE CYLINDER B
ˆPLATE CYLINDER A
ØACE HEAD ASS’Y
∏UNIT PINCH ASS’Y
”LEVER #9 GUIDE ASS’Y
’LEVER TENSION ASS’Y
˝BAND BRAKE ASS’Y
ÔDISK S REEL
LEVER S BRAKE ASS’Y
ÒGEAR IDLE
ÚLEVER IDLE
ÆLEVER T BRAKE ASS’Y
ıDISK T REEL

Alignments and Adjustments (Mechanical)
Samsung Electronics 4-3
4-1-3 Deck (Bottom View)
Œ´ˇ¨ˆØ∏
”’˝ Ô
Fig. 4-3 Bottom Parts Location
ŒGEAR JOINT 1
´GEAR JOINT 2
ˇBRAKET GEAR
¨MOTOR CAPSTAN ASS’Y
ˆLEVER T LOAD ASS’Y
ØGEAR LOADING DRIVE
∏LEVER S LOAD ASS’Y
”HOLDER CLUTCH ASS’Y
’BELT PULLEY
˝SLIDER CAM
ÔSLEEVE TENSION

Alignments and Adjustments (Mechanical)
4-4 Samsung Electronics
4-2 Main Deck
4-2-1 Braket FL Top Removal
1. Remove 2 screws Œ.
2. Remove the Bracket FL Top ´.
Note : Take care not to change assembly direction.
FIG.1
Π2 SCREWS
´ BRACKET FL TOP
4-2-2 Lever FL Door Removal
1. Rotate the Lever FL Door Œin the direction of
arrow ÒAÓ.
2. Release the Hook ´, remove the Lever FL Door
Œin the direction of arrow ÒBÓ.
´HOOK
ΠLEVER FL DOOR
"A"
"B"
Fig. 4-4 Braket FL Top Removal Fig. 4-5 Lever FL Door Removal

Alignments and Adjustments (Mechanical)
Samsung Electronics 4-5
4-2-3 Holder FL Cassette Ass’y Removal
1. Remove the Lever FL Door. (Refer to Fig. 4-5
2. Pull the Holder FL Cassette AssÕy Œto the eject
position.
3. Pull the Holder FL Cassette AssÕy Œ as grasping
the Holder FL Cassette AssÕy Œ and Lever FL
Cassette-R ´ in the same time to release hooking
from Main Base until the Boss [A], [B] of Holder
FL Cassette AssÕy Œ is taken out from the Rail [C],
[D].
4. Lift the Holder FL Cassette AssÕy Œin the direc-
tion of arrow ÒBÓ in this time, you have to grasp
the Lever FL Cassette-R ´ continuously until the
Holder FL Cassette AssÕy Œ is taken out completely.
Note : Be sure to insert Lever FL Cassette-R ´ in the
direction of ÒAÓ to prevent separation and break-
age of the Lever FL Cassette-R ´ at disassembling
and reassembling.
ΠHOLDER FL
CASSETTE ASS'Y
´ LEVER FL CASSETTE-R
BOSS [A]
BOSS [B]
RAIL [C]
RAIL [D]
"A"
"B"
4-2-4 Lever FL Arm Ass’y Removal
1. Remove the Lever FL Door. (Refer to Fig. 4-5
2. Remove the Holder FL Cassette AssÕy.
(Refer to Fig.4-6)
3. Release the Hook Œin the direction of arreow
ÒAÓ, pull out the Lever FL Arm AssÕy ¨from
the Boss of Main Base.
4. Remove the Lever FL Arm AssÕy ¨in the direc-
tion of arrow ÒBÓ.
Assembly : When reinstalling, be sure to reassemble
Lever FL Arm AssÕy ¨ after you insert the Boss
´in Groove [A] of Slider FL Drive ˇ.
ΠHOOK
´ BOSS
¨ LEVER FL
ARM ASS'Y
ˇ SLIDER FL DRIVE
GROOVE [A]
"A"
"B"
Fig. 4-6 Holder FL Cassette Ass’y Removal Fig. 4-7 Lever FL Arm Ass’y Removal

Alignments and Adjustments (Mechanical)
4-6 Samsung Electronics
4-2-5 Slider FL Drive Removal
1. Pull the Slider FL Drive Œto the front direction.
2. Remove the Slider FL Drive Œin the direction of arrow. (Refer to Fig. 4-8)
ΠSLIDER FL DRIVE
4-2-6 Bracket Gear, Gear FL Cam, Gear Joint 1, 2 Removal
1. Remove screw Œ.
2. Lift the Bracket Gear ´.
3. Remove the Gear FL Cam ˇ.
4. Lift the Gear Joint 2 ¨, Gear Joint 1 ˆ.
ΠSCREW
´ BRACKET GEAR
ˇ GEAR FL CAM
ˆ GEAR JOINT 1
¨ GEAR JOINT 2
Fig. 4-8 Slider FL Drive Removal
Fig. 1-9 Bracket Gear, Gear FL Cam, Gear Joint 1, 2 Removal

Alignments and Adjustments (Mechanical)
Samsung Electronics 4-7
4-2-7 Assembly of Gear FL Cam,
Gear Joint 1, 2
1. Be sure to align dot mark of Gear Joint 1 Πwith
dot mark of Gear Joint 2 ´ as shown Fig. 4-10
(Refer to Timing Point 1), confirm the Timing
Point 2 of the Gear Joint 2 ´ and Slider Cam ˇ.
2. Align the Gear FL Cam ¨with the Gear Worm
Wheel Post as shown detail drawing. (Refer to
Timing Point 3)
ŒGEAR JOINT 1
´GEAR JOINT 2
ˇSLIDER CAM
TIMING POINT 1
¨GEAR FL CAM
GEAR WORM WHEEL
POST
TIMING POINT 2
TIMING POINT 3
4-2-8 Holder Worm, Gear Worm,
Gear Worm Wheel Removal
1. Release the Hook [A] in the direction of arrow
and, remove the Holder Worm Œ.
2. Remove the Gear Worm ´.
3. Remove the Gear Worm Wheel ˇ. (After remov-
ing the Gear FL Cam as shown Fig. 4-9)
Note : Secure the Hook [A] after installing the
Holder Worm Œ.
ΠHOLDER WORM
´ GEAR WORM
HOOK [A]
ˇ GEAR WORM WHEEL
Fig. 4-10 Assembly of Gear FL Cam, Gear Joint 1,2
Fig. 4-11 Holder Worm, Gear Worm, Gear Worm Wheelemoval

Alignments and Adjustments (Mechanical)
4-8 Samsung Electronics
4-2-9 Motor Loading Ass’y Removal
1. Remove the screw Œ.
2. Remove the Motor Loading AssÕy ´.
ΠSCREW
´ MOTOR LOADING ASS'Y
Fig. 4-12 Motor Loading Ass’y Removal
4-2-10 Gear Loading Drive, Slider Cam, Lever T, S Load Ass’y Removal
1. Remove the Belt Pulley. (Refer to Fig. 4-29)
2 . Remove the Gear Loading Drive Œafter releasing Hook [A] in the direction arrow as shown in detail
drawing.
3. Remove the Slider Cam ´.
4. Remove the Lever T, S Load AssÕy ˇ, ¨.
ΠGEAR LOADING DRIVE
ˇ
LEVER T LOAD ASS'Y
HOOK [A]
´ SLIDER CAM
¨ LEVER S LOAD ASS'Y
Fig. 4-13 Gear Loading Drive, Slider Cam, Lever T, S Load Ass’y Removal

Alignments and Adjustments (Mechanical)
Samsung Electronics 4-9
4-2-11 Assembly of Gear Loading Drive,
Slider Cam, Lever T, S Load Ass’y
1. When reinstalling, be sure to align dot of Lever T
Load AssÕy Œ with dot of Lever S Load AssÕy ´
as shown in drawing. (Refer to Timing Point 1
2. Insert the Pin A, B, C, D into the Slider Cam
ˇhole.
3. Be sure to align dot of Lever T Load AssÕy and dot
of Gear Loading Drive ¨. (Refer to Timing Point 2)
4. Align dot of Gear Loading Drive with mark of
Slider Cam as shown in drawing.
(Refer to Timing Point 3)
´LEVER S LOAD ASS'Y
ŒLEVER T LOAD ASS'Y
PIN A PIN C PIN B
PIN D
LEVER T
LOAD ASS'Y LEVER S
LOAD ASS'Y
ˇSLIDER CAM
¨GEAR LOADING DRIVE
TIMING POINT 1
TIMING POINT 2
TIMING POINT 3
4-2 -12 Lever Tension Ass’y, Band Brake
Ass’y, Sleeve Tension Removal
1 . Remove the Spring Tension Œ.
2
. In bottom side of Deck, remove the Sleeve
Tension ´after rotating it right or left as lif-
tinig locking edge of Sleeve Tension.
3
. Remove the side ÒaÓ of the Band Brake
AssÕy ¨in the direction of arrow ÒAÓ from
the Lever Tension AssÕy ˇ.
4
. Remove the side ÒbÓ of the Band Brake
AssÕy ¨in the direction of arrow ÒBÓ from
the Main Base.
Note :
1
. When replacing the Lever Tension AssÕy, be
sure to apply oil in the Sleeve Tension.
2
. Take care not to touch stain on the felt side,
and not to be folded and broken Band Brake
AssÕy.
¨ BAND BRAKE ASS'Y
´ SLEEVE TENSION
ˇ LEVER TENSION ASS'Y
ΠSPRING TENSION
"A"
"B" a
b
Fig. 4-14 Assembly of Gear Loading Drive,
Slider Cam, Lever T, S Load Ass’y
Fig. 4-15 Lever Tension Ass’y, Band Brake Ass’y, Sleeve Tension
Removal

Alignments and Adjustments (Mechanical)
4-10 Samsung Electronics
4-2-13 Lever S, T Brake Ass’y Removal
1. Release the Hook [A] and the Hook [B], [C] in the
direction of arrow as shown in Fig. 1-16.
2. Lift the Lever S, T Brake AssÕy Œ, ´with Spring
Brake ˇ.
Assembly :
1. Assemble the Lever S Brake AssÕy Œon the Main
Base.
2. Assemble the Lever T Brake AssÕy ´with Spring
Brake ˇ.
Note : Take extreme care not to folded or transform
the spring Brake while removing or reinstalling.
ˇ SPRING BRAKE
´ LEVER T BRAKE ASS'Y
ΠLEVER S BRAKE ASS'Y
HOOK [A]
HOOK [C]
HOOK [B]
4-2-14 Lever Idle Ass’y Removal
1. Push the Lever Idle Œin the direction of arrow
ÒAÓ, ÒBÓ.
2. Lift the Lever Idle Œ.
Assembly :
1. Apply oil in two Bosses of Lever Idle Œ.
2. Assemble the Gear Idle ´ with the Lever Idle Œ.
Note : When replacing the Gear Idle ´, be sure to
add oil in the boss of Lever Idle Œ.
ΠLEVER IDLE
´ GEAR IDLE
´GEAR IDLE
HOOK [A]
"A"
"B"
Fig. 4-16 Lever S, T Brake Ass’y Removal
Fig. 4-17 Lever Idle Ass’y Removal

Alignments and Adjustments (Mechanical)
Samsung Electronics 4-11
4-2-15 Disk S, T Reel Removal
1. Lift the Disk S, T Reel Œ, ´.
´ DISK T REEL
ΠDISK S REEL
Fig. 4-18 Disk S, T Reel Removal
4-2-16 Holder Clutch Ass’y Removal
1. Remove the Washer Slit Œ.
2. Lift the Holder Clutch AssÕy ´.
´HOLDER CLUTCH ASS'Y
ŒWASHER SLIT
Fig. 4-19 Holder Clutch Ass’y Removal

Alignments and Adjustments (Mechanical)
4-12 Samsung Electronics
4-2-17 Lever Up Down Ass’y, Gear Center
Ass’y Removal
1. Remove the 2 hooks in the direction of arrow as
shown Fig. 1-20 and lift the Lever Up Down AssÕy
Œ.
2. Lift the Gear Center AssÕy ´.
´ GEAR CENTER ASS'Y
ŒLEVER UP DOWN ASS'Y
4-2-18 Assembly of Lever Up Down
Ass’y, Gear Center Ass’y
1. Insert the Lever Up Down AssÕy Œin the 2
rectangular holes on Main Base.
2. Lift the Lever Up Down AssÕy Œabout 35
degree. (Refer to Fig. 1-21)
3. Insert Ring ¨ of the Gear Center AssÕy ´in the
Guide ˆof the Lever Up Down AssÕy Œ.
4. Insert the Gear Center AssÕy ´in the post Øon
Main Base.
5. Push down the Lever Up Down AssÕy Œfor
locking of the Hook ∏.
Note :
1. Take care not to separate and loose the Spring
Up Down.
2. When assembling the Gear Center AssÕy, donÕt
push down too much.
MAIN BASE
ŒLEVER UP DOWN ASS'Y
ˆGUDIE
´GEAR CENTER ASS'Y
¨RING
ˇGEAR
ØPOST
∏HOOK
35˚
Fig. 4-20 Lever Up Down Ass’y, Gear Center Ass’y Removal Fig. 4-21 Assembly of Lever Up Down Ass’y,
Gear Center Ass’y