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Alignment and Adjustments (Electrical)


5-6-2 SECAM BLOCK OPTION TABLE (Continued)

NO L OCA - NO CODE - NO DE SCRI PTION SP ECI FICAT ION RE MARK

32 LM905 2701-000208 COIL 6.8uH

33 LM906* 2701-000158 COIL 22uH NOT USED

34 QM901 0501-000398 TR C945

35 QM902 0501-000142 TR R2001

36 QM903 0504-000119 TR R1004

37 QM904 0501-000398 TR C945

38 QM905 0501-000398 TR C945

39 QM906 0501-000303 TR A733

40 RM901 2001-000522 R 22K

41 RM902 2001-000472 R 2.7K

42 RM903 2001-000539 R 24K

43 RM904 2001-000947 R 7.5K

44 RM905 2001-000890 R 6.8K

45 RM906 2001-000387 R 51K

46 RM907 2001-000591 R 3.3K

47 RM908 2001-000633 R 30K

48 RM909 2001-000890 R 6.8K

49 RM910 2001-000429 R 1K

50 RM911 2001-000429 R 1K

51 RM912 2001-000674 R 360

52 RM913 2001-000281 R 100

53 RM914 2001-000786 R 47K

54 RM915 2001-000539 R 24K

55 RM916 2001-001015 R 9.1K

56 RM917 2001-000977 R 8.2K

57 RM918 2001-000139 R 120K

58 RM919 2001-000734 R 4.7K

59 RM920 2001-000539 R 24K

60 RM921 2001-000429 R 1K

61 RM922* 2001-000319 R 120K NOT USED

63 JM173 3812-000219 JUMPER JUMPER

64 JM174 3812-000219 JUMPER JUMPER

65 JM176 3812-000219 JUMPER JUMPER

66 JM179 3812-000219 JUMPER JUMPER

67 JM194 3812-000219 JUMPER JUMPER




5-14 Samsung Electronics
Troubleshooting



6. Troubleshooting

6-1 No Power (No Picture on)


Check
both terminal voltages
of C820 (125V)


No Yes




Check both Check
terminal voltages of No No
Voltage of 5V, 6V, 8V,
C807 (280~300V). 13V power line..

Check D801~804
F801,Q801. Check whether
Yes each power line Yes
is short or open.


No No Is IC901
Is Q801 Pin 3
19~22V? Pin 64 Voltage 5V?


Yes Check IC801
Yes


Check/Replace
T801.
No Check H.V SYNC on
IC901 Pins 1, 2


Check/Replace
IC901. Yes


Check
No IC901 Pin 3 is High
when power is On.


Check/Replace
IC902.
Yes


Check the voltage
of TU001.




Samsung Electronics 6-1
Troubleshooting


6-2 No Power (No LED On)


Yes
Check CN102


Retouch CN102 or
Replace CN102
No
Check IC901 #64



Yes No
Check IC804



Check IC901 #23, #24 No
Yes


No Check another I2C No
Bus Line. Check IC801


Check after Bus Replace
Line Open Yes




Check Q801 No



Replace
Yes




Check D801~D805
Check IC901 #28~31 Yes


No
No

Check/Replace
D801~D805
Replace
IC901




6-2 Samsung Electronics
Troubleshooting


6-3 No RF Picture / Sound


No
Check IC901 #23, #24


Yes
Yes Check Another I2C No
bus line

Check After
No bus line open
Check D834 "H" and
IC807

Replace

Yes



No
Check IC201 #12, #37


Replace
Yes



No
Check Q401, Q402


Replace
Yes


Check
IC201 #40, #41,
R416, R408, R409,
D401, D402


No


Replace




Samsung Electronics 6-3
Troubleshooting


6-4 No Picture (Sound OK)

1 Check the Brightness, Contrast and Color adjustments

2. Check: AV Picture, Video Playback

3. See Video Block Diagram




6-5 No Sound (Picture OK)

1. Check the Volume adjustment level.

2. Check AV Video, Sound Playback

3. See Audio Block Diagram




6-6 RF Weak Signal (Playback, AV Mode OK)

1. Check Tuner (TU001) B+. Check: 9V (IC807)
33V (DZ803). Check 5V (IC902)

2. Pre AMP (HC001), B+. Check: 9V (IC807)




6-7 Recording Defect

1. CN101 Check : Retouch

2. 2nd Tuner (TU002) B+. Check : 12V (D818), 33V(DZ803)
5V (IC807)

3. 2nd If : Check 9V (IC806), Video out, Audio out

4. Video Defect : IC701 Check

5. Audio Defect : IC701 Check

6. Standby Recording Defect, IC901 #5 Line: Check (D833, IC804, IC807, IC806)

7. VPS (PDC) Recording Defect: Check IC901, #4




6-4 Samsung Electronics
Troubleshooting


6-8 No Color
1. Check the Color Adjustment level

2. Check the Sandcastle Pulse Line : IC201 #41

3. Check the R-Y, B-Y Line : IC201 #29~#32

4. Check crystal : X202 (4.43361MHz)




6-9 No Vertical SCAN
1. Check R410, D404

2. Check IC301, #7

3. Check IC201 #46, #47 Line

4. Check DY Connector


6-10 Horizontal Size
1. Check C402 , C403 , L401 , L404




6-11 On-Screen Display Missing
1. Check IC901 #2
(D921, Q901, DZ901)

2. Check IC901 #1 (R949, D919,DZ904)



6-12 No Teletext
1. Check IC201 #38, #23, #24, #25

2. Check the 1st 5V-Line (D817,DZ808,R823)

3. Check TIC01 #1 (Vcc : 5V)

4. Check TIC01 #8 (CVBS)

5. Check IC201 #26 (TTX F/B)




Samsung Electronics 6-5
Troubleshooting


6-13 Play Mode Inoperative


EE-VIDEO No See Video Missing
In EE Mode


Yes

Insert a Cassette
Tape Recorded by
Another VCR and
Press Play Button


Yes


Play No See
Indication in (Regulator Inoperative)
Display


Yes



See
Mechanism No (Mechanism Does Not
Operation Operate in Play Mode)



Does Not Operate or
Yes Operates but Stops Soon



See
No Video Missing in
PB-Video
Play Mode



Yes



See (PB Audio)
Audio Missing in
Play Mode




6-6 Samsung Electronics
Troubleshooting


6-14 Mechanism Does Not Operate In Play Mode

Mechanism Does Not
Operate In Play Mode




Place VCR
Power On




Load a Tape and
Press Play Button

Yes

(Load)
Tape Loading No ICM601-38 : HIGH No Moter B+ No
Operation ICM602- 2,10 Motor B+ Line
ICM601-39 : LOW



Yes or VCR Stops Soon
Replace ICM601 Replace ICM602



(S.End Sensor) Low
Check Tape
ICM601-77,76


High


See
Cylinder No (Cylinder Does
Rotation Not Rotate)


OK but VCR Stops Soon


(SW 25Hz) No Check CYL FG.
ICM601-24 ICM601-93


Yes


See
Capstan No (Capstan Does
Rotation Not Rotate)

Yes


PTM601, PTM602,
S, T Reel DC
Supply/Take Up Reel Sensor
ICM601-99,98 PTM601, PTM602

Yes


Prog, SW State No Deck Loading Motor
ICM601-63,64,65 Mechanism


Yes


Replace ICM601




Samsung Electronics 6-7
Troubleshooting


6-15 Record Mode Inoperative


Play No See (Play Mode
Operation Inoperative)


Yes


Load VCR With a Blank
Tape and Press Record Button

Yes


No Rew SW Logic No
Tape Eject ICM601 Change Tape Replace



Yes
Replace SWM602



D/ REC (H) Low
Check ICM601
ICM601-66


High


See
No (Video Missing in
REC-Video
Record Mode)


Yes


See (Audio Mising in
Record Mode)




6-8 Samsung Electronics
Troubleshooting


6-16 Fast Forward Mode Inoperative

Load VCR With a Tape
and Press F.Fwd Button
Yes




Mechanism See
(STOP) (Mechanism Does Not
State ICM601-63,
64,65 Operate In Play Mode)

(F.FWD)


See
Capstan Motor (STOP) (Capstar Does
Rotation Not Rotate)


(Rotate)



Check Mechanism




Samsung Electronics 6-9
Troubleshooting


6-17 Rewind Mode Inoperative


Load VCR With No See (Fast Forward Mode
a Tape Inoperative)


(Rotate)



Press Rewind Button


Yes


Mechanism See
(STOP) (Mechanism Does Not
State ICM601-63,
64,65 Operate In Play Mode)

(Rew)



Capstan Motor (STOP)
See ICM601-25
Rotation


(Rotate)



Check Mechanism




6-10 Samsung Electronics
Troubleshooting


6-18 Rev Search Mode Inoperative


Play No See Play Mode
Operation Inoperative


Yes



Press REV Search Button


Yes


Play Speed
Capstan Speed Check Mechanism Replace ICM601



Serach Speed


No Rew SW Logic No
Noise Bar Locking Change Tape Replace
ICM601


Yes Yes



Replace ICM601 Capstan Motor




Samsung Electronics 6-11
Troubleshooting


6-19 Cassette Loading Mechanism Does Not Operate

Turn the VCR Power
On and Insert a Tape




Check
No (Control Pulse) No Check Start/End
Tape Loading
ICM601-76,77 Sendor ICM601


Yes Yes


No Check
Press Eject Button ICM601 - 37 LM B+ Line


Yes
No


ICM602-10:LOW No Replace
Check ICM601
ICM603-2 : HIGH ICM602




6-12 Samsung Electronics
Troubleshooting


6-20 No Servo Lock


Play




C-FG No Check Start/End
ICM601-93 Sendor ICM601


Yes



CTL Pluse No Check
ICM601-4 A/C Head


Yes


Check CTL No
Pulse AC Level (SP, LP
: Over 2Vp-p)

Yes


Replace
ICM601




Samsung Electronics 6-13
Troubleshooting


6-21 Capstan Does Not Rotate


9V No Check 12V
CNM603-5 at AL15V Line of
Power Supply

Yes


AL 5V No Check 6V at AL6V
CNM603-8 Line of Power Supply


Yes


Place the VCR
In Play Mode

Yes


No Check I-LIMIT.
CNM603-3 2.5V RM618


Yes


2.5V No Check C.M CTL/ No Check
CNM603-4 RM607, RM604 ICM601


Yes


Check
Capstan Motor




6-14 Samsung Electronics
Troubleshooting


6-22 Drum Does Not Rotate


Check 12V No Check 12V at AL15V
CNM602-4 of Power Supply


Yes


Place the VCR
In Play Mode

Yes


Faster Check D-FG
CYL-Speed
ICM601-97 Square Wave


Slower


(8 MHz) No Replace
XTM601 XTM601, CM609, CM610


Yes


Check
Cylinder Motor




Samsung Electronics 6-15
Troubleshooting


6-23 Video Missing In Play Mode


No See (Video Missing
Video EE Mode
Operation In EE Mode)


Yes


Place VCR
Play Mode

Yes


Video FM In No No Check
Check ICM301-18
ICM301-17 Video Head


Yes


Video No Check
ICM301-20 QM302


Yes


Video No
ICM301-29 Check Video Out Line


Yes



Replace ICM301




6-16 Samsung Electronics
Troubleshooting


6-24 Video Missing In Record Mode


Video EE Mode No TV Switching
Operation Circuit Check


Yes


Place VCR
Record Mode

Yes


FM-Video No
ICM301-21 Replace ICM301


Yes


FM-Video No
ICM301-18 Check RM313


Yes



Check Video Head




Samsung Electronics 6-17
Troubleshooting


6-25 Color Missing In Play Mode


FM-ENV No See (Video Missing
ICM301-61 In Play Mode)


Yes


Color No S/W 25Hz No Check
ICM301-71 ICM301-11 ICM601


Yes


Yes Check No No
XTM302 : 4.43MHz Change XTM302


Yes



Replace ICM301




6-18 Samsung Electronics
Troubleshooting


6-26 Color Missing In Record Mode


(VIdeo In) No TV Switching
Record Mode Circuit Check


Yes


Color No Check No
ICM301-61 XTM301 : 4.43MHz Replace XTM301


Yes


Yes Replace ICM301




FM Signal No
ICM301-71 Check CM351


Yes


Replace ICM301




Samsung Electronics 6-19
Troubleshooting


6-27 Audio Signal Missing in Play Mode


Check ICM301 No Check PC 5V Line
pin75 : 5V

Yes

Check
ICM301 pin23,24 No Check VCR MICOM
(I2C LCK DATA) (ICM601- pin27, 28)


Yes


Check ICM301 No Check A/C Head and PB EQ
pin 4 : PB Audio Signal Block (AUDIO HEAD A2 (MUTH)
(Small Signal)


Yes


Check ICM301 No
pin100 : PB audio signal Check CM301
(Small Signal)




Check ICM301 No
pin96 : PB Audio Replace ICM301
Signal




Check
CNM101 pin10 No
Replace CNM001
PB Audio signal




6-20 Samsung Electronics
Troubleshooting


6-28 Audio Signal Missing After Recording

Check No
Audio Signal in Check CNM102 pin6,8 :
E-E Mode REC Audio Signal

Yes No


Check TV part
Place VCR in REC Mode A/V SW or RF Block


Yes


Check No
FLM01 pin2 : Check PC 5V Line
5V

Yes

Check Check CM370, RM357,RM358
FLM501 Pin5 : No CM371, CM373, CM372,
MIN 40Vp-p QM312, RM359

Yes

Check Check RM366, RM367,
ICM301 pin76,78 No
CM374, RM342, RM343,
Audio Signal CM354

Yes


Check No
ICM301 pin7 REC Replace ICM301
audio signal

Yes


Check No
ICM301 pin99 : Check RM307
REC bias signal

Yes


Check No Check A/C
CNM302 , Pin5 Head Assembly


Yes


Replace CNM302




Samsung Electronics 6-21
Exploded View & Parts List



7. Exploded View & Parts List

7-1 TB14C52S/XEC

No Code No Description Specification Q'ty Remark


1 AA90-00050B ASSY-CABINET,FRONT BK-708P ELN HB,14C5 1
AA64-31339E CABINET-FRONT -,14A5,C5,BK-708P,HIPS,HB,BLK,-,- 1
1-1 AA64-70009B BADGE-BRAND AL,SS R2000 22,SILVER,L40,-,-, 1
1-2 AA64-00040A WINDOW-REMOCON -,TVN-504V,-,PC,-,VIOLET,- 1
1-3 AA64-00038A KNOB-MASTER -,TVCR 14,20,M/S BK-708P,ABS,HB,BLK 1
1-4 AA61-60003Q SPRING-CS -,SUS304,0.5,OD8,H10,N5,-,-,- 1
1-5 AA64-00037B KNOB-POWER -,14C5,20C5,BK-708P TACT,ABS,HB,BLK 1
1-6 AA61-60003E SPRING-CS -,SUS304,0.5,OD8,H9,N5,-,-,- 1
1-7 3001-001015 SPEAKER 2.5W,16ohm,88dB,150Hz 1
1-8 AA95-40012B ASSY-PCB,A/V DP,TF502,C15A,PAL,230V,14-21' 1
1-9 6003-000333 SCREW-TAPTITE RH,+,2S,M3,L10,ZPC(YEL),SWRCH1 2
1-10 AA64-00039A INDICATOR-LED -,-,-,ABS,-,CLEAR,- 1
1-11 6003-000333 SCREW-TAPTITE RH,+,2S,M3,L10,ZPC(YEL),SWRCH1 1
1-12 AA64-00035B KNOB-CONTROL,TV -,14C5,20C5,BK-708P,ABS,HB,BLK 1
1-13 AA64-00036B KNOB-FAMILY -,14C5,20C5,BK-708P SEA,ABS,HB,BLK 1
1-14 6002-000512 SCREW-TAPPING RH,+,2,M4,L12,ZPC(BLK),SWRCH18 1
1-15 6002-000512 SCREW-TAPPING RH,+,2,M4,L12,ZPC(BLK),SWRCH18 1
1-16 AA95-00092A ASSY-PCB,CONTROL DP,C15A,14/20,ALL 1
1-17 6003-000333 SCREW-TAPTITE RH,+,2S,M3,L10,ZPC(YEL),SWRCH1 4
1-18 AA61-50044A GUIDE-LED -,ABS,V0,BLK,-,AIWA,- 3

2 CRT-COLOR LOCAL (SESA)
2-1 AA65-30016A CLAMP-D,COIL NYLON-66,V0,NTR,DADH-360 14,- 2
2-2 AA60-10050R SCREW-ASSY WC,HH,+,M5,L31.5,SWRCH18A,ZPC( 4
2-3 AA95-20010X ASSY-PCB,CRT -,C15A,14,EU,230V 1

3 AA64-31340D CABINET-BACK -,14A5,C5,-,HIPS,V2,BLK,-,- 1
3-1 6002-000514 SCREW-TAPPING RH,+,2,M4,L15,ZPC(BLK),SWRCH18 6
3-2 AA42-10001V ANT-ROD -,3S,620mm,BRN,UL/CSA 1

4 POWER-CORD LOCAL (SESA)

A AA94-00427A ASSY-PCB,MAIN(OPT) TB14C52S/XEC,C15A,SPAIN,SESA 1
A-1 AA61-20163A HOLDER-CHASSIS -,T3350,ABS,V0,GRY,- 1

B AA90-40008K ASSY-FRAME TS-DECK,14C5 SESA ONLY 1
AA61-00004A FRAME-DECK -,TVN-502V,-,V2,-,BLK,-,-,-,- 1
B-1 AA63-00012A COVER-FRAME,TOP -,TVCR,PAL,SECC,-,-,-,- 1
B-2 AA91-40112A ASSY-DECK -,2HD,X-9 PAL SESA 1
B-3 AA95-00091Q ASSY-PCB,M/DECK -,-,C15A,2HD,PAL/SEC/MESEC,-,NTPB,KEY 1
B-4 AA63-40313A SHIELD-BOTTOM -,SPTE,T0.5,-,TVN334V 1
B-5 AA64-00024M DOOR-HOUSING -,TVCR 14,20,BK708P PAL TTX(X) EL,ABS,HB 1
B-6 AA61-00050A SPRING-DOOR -,SUS304,-,-,-,-,0.5,OD6,H9.7,N8,TVCR T 1




Samsung Electronics 7-1
Exploded View & Parts List


7-2 TB20C52S/XET



No Code No Description Specification Q'ty Remark


1 AA90-00052B ASSY-CABINET,FRONT BK708P ELN HB BLK,20C5,SESA 1
AA64-00025C CABINET-FRONT -,20A5,C5,BK-708P,HIPS,HB,BLK,-,- 1
1-1 AA64-70010B BADGE-BRAND AL,SS R2000 25,SILVER,L50,-,-, 1
1-2 AA64-00040A WINDOW-REMOCON -,TVN-504V,-,PC,-,VIOLET,- 1
1-3 AA64-00038A KNOB-MASTER -,TVCR 14,20,M/S BK-708P,ABS,HB,BLK 1
1-4 AA61-60003Q SPRING-CS -,SUS304,0.5,OD8,H10,N5,-,-,- 1
1-5 AA64-00037B KNOB-POWER -,14C5,20C5,BK-708P TACT,ABS,HB,BLK 1
1-6 AA61-60003E SPRING-CS -,SUS304,0.5,OD8,H9,N5,-,-,- 1
1-7 3001-001037 SPEAKER 5W,8ohm,89dB,180Hz 1
1-8 6002-000514 SCREW-TAPPING RH,+,2,M4,L15,ZPC(BLK),SWRCH18 4
1-9 AA95-40012B ASSY-PCB,A/V DP,TF502,C15A,PAL,230V,14-21' 1
1-10 6003-000333 SCREW-TAPTITE RH,+,2S,M3,L10,ZPC(YEL),SWRCH1 2
1-11 AA64-00036B KNOB-FAMILY -,14C5,20C5,BK-708P SEA,ABS,HB,BLK 1
1-12 6002-000514 SCREW-TAPPING RH,+,2,M4,L15,ZPC(BLK),SWRCH18 1
1-13 AA64-00035B KNOB-CONTROL,TV -,14C5,20C5,BK-708P,ABS,HB,BLK 1
1-14 6002-000514 SCREW-TAPPING RH,+,2,M4,L15,ZPC(BLK),SWRCH18 1
1-15 AA95-00092A ASSY-PCB,CONTROL DP,C15A,14/20,ALL 1
1-16 AA61-50044A GUIDE-LED -,ABS,V0,BLK,-,AIWA,- 3
1-17 6003-000333 SCREW-TAPTITE RH,+,2S,M3,L10,ZPC(YEL),SWRCH1 4
1-18 6003-000333 SCREW-TAPTITE RH,+,2S,M3,L10,ZPC(YEL),SWRCH1 1
1-19 AA64-00039A INDICATOR-LED -,-,-,ABS,-,CLEAR,- 1

2 CRT-COLOR LOCAL (SESA)
2-1 AA65-30107A CLAMP-D,COIL NYLON 66,V2,NTR,-,20~22 INCH,- 4
2-2 AA60-10050R SCREW-ASSY WC,HH,+,M5,L31.5,SWRCH18A,ZPC( 4
2-3 AA95-20011A ASSY-PCB,CRT -,C15A,20,21,EC,- 1

3 AA64-00016C CABINET-BACK -,20A5,C5,-,HIPS,V2,BLK,-,- 1
3-1 6002-000514 SCREW-TAPPING RH,+,2,M4,L15,ZPC(BLK),SWRCH18 6
3-2 ANT-ROD LOCAL (SESA)

4 POWER-CORD LOCAL (SESA)

A AA94-00360A ASSY-PCB,MAIN(OPT) TF20C52S/XEF,C15A,FRANCE,SEF 1
A-1 AA61-20021A HOLDER-CHASSIS -,T5050,ABS,V0,GRY,- 1

B AA90-40008D ASSY-FRAME TS-DECK,PAL SESA 20,21 1
AA61-00004A FRAME-DECK -,TVN-502V,-,V2,-,BLK,-,-,-,- 1
B-1 AA63-00012A COVER-FRAME,TOP -,TVCR,PAL,SECC,-,-,-,- 1
B-2 AA91-40112A ASSY-DECK -,2HD,X-9 PAL SESA 1
B-3 AA95-00091V ASSY-PCB,M/DECK -,-,C15A,2HD,PAL,-,NTPB,KEY 1
B-4 AA63-40313A SHIELD-BOTTOM -,SPTE,T0.5,-,TVN334V 1
B-5 AA64-00024W DOOR-HOUSING -,14,20,BK708P EL TTX,2TUN,ABS,HB,BL 1
B-6 AA61-00050A SPRING-DOOR -,SUS304,-,-,-,-,0.5,OD6,H9.7,N8,TVCR T 1




7-2 Samsung Electronics
Exploded View & Parts List


7-3 TB21B5DF2S/XEC




No Code No Description Specification Q'ty Remark


1 AA91-00022A ASSY-CABINET,FRONT DP,21B5 ELN,(SPK) GR801P+DG703P,HB 1
AA64-31343B CABINET-FRONT -,21B5 GUJU,GR801P+DG703P,HIPS,HB, 1
1-1 AA64-70010B BADGE-BRAND AL,SS R2000 25,SILVER,L50,-,-, 1
1-2 AA64-40522B WINDOW-REMOCON -,21B5,-,PC,VIOLET,-,- 1
1-3 AA64-10799B KNOB-MASTER -,21B5,DG703P,ABS,HB,G3676 1
1-4 AA61-60003Q SPRING-CS -,SUS304,0.5,OD8,H10,N5,-,-,- 1
1-5 AA95-40012B ASSY-PCB,A/V DP,TF502,C15A,PAL,230V,14-21' 1
1-6 6003-000333 SCREW-TAPTITE RH,+,2S,M3,L10,ZPC(YEL),SWRCH1 2
1-7 AA64-40523B INDICATOR-LED -,21B5,-,PC,CLEAR,-,- 1
1-8 AA95-00093A ASSY-PCB,MASTER DP,-,C15A,PAL,-,ALL 1
1-9 6001-000677 SCREW-MACHINE RH,+,M3,L6,ZPC(YEL),SM20C,- 2
1-10 AA64-10800B KNOB-FAMILY -,21B5,DG703P,ABS,HB,G3676 1
1-11 6002-000514 SCREW-TAPPING RH,+,2,M4,L15,ZPC(BLK),SWRCH18 3
1-12 3001-001087 SPEAKER 5W,16OHM,90