Text preview for : SAMSUNG TB531VCT1X_TB331VDZ1S.pdf part of Samsung TB531VCT1X/XSA Television Video Cassette Recorder
Chassis : SCV11F
Model: TB531VCT1X/XSA
TB331VDZ1S/XSA
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Television Video Cassette Recorder
Chassis : Model: SCV11F TB531VCT1X/XSA TB331VDZ1S/XSA
Television Video Cassette Recorder
CONTENTS
1. Precautions 2. Specifications 3. Disassembly and Reassembly 4. Alignment and Adjustment (Mechanical) 5. Alignment and Adjustment (Electrical) 6. Troubleshooting 7. Exploded View and Parts List 8. Electric Parts List 9. Block Diagram 10. PCB Layout 11. Wiring Diagram 12. Schematic Diagrams
ELECTRONICS
© Samsung Electronics Co., Ltd. NOV.1998
Printed in Korea 3SCV11F-3115
Schematic Diagrams
12. Schematic Diagrams
12-1 VCR (SECAM-BLOCK)
RED
PB Y PROCESS
BLUE
REC Y PROCESS
Samsung Electronics
12-1
Schematic Diagrams
12-2 VCR (SYSTEM BLOCK)
4
3
1
5
2
6
12-2
Samsung Electronics
Schematic Diagrams
12-3 VCR (A/V BLOCK)
5,6
3 2
1
4
RED
REC Y PROCESS REC C PROCESS
BLUE
PB Y PROCESS PB C PROCESS
BLUE
REC AUDIO PB AUDIO 12-3
Samsung Electronics
Schematic Diagrams
12-4 VCR (POWER BLOCK)
12-4
Samsung Electronics
Schematic Diagrams
12-5 TV (1/4)
RED BLUE
POWER LINE SIGNAL LINE
Samsung Electronics
12-5
Schematic Diagrams
12-6 TV (2/4)
15
16 14 13 11 12 9 10 7
4
1
3
6
5
8
2
RED BLUE
POWER LINE SIGNAL LINE
12-6
Samsung Electronics
Schematic Diagrams
12-7 TV (3/4)
RED BLUE
POWER LINE SIGNAL LINE
Samsung Electronics
12-7
Schematic Diagrams
12-8 TV (4/4)
7
1
6
2 8
9 3 4 5
10
RED BLUE
POWER LINE SIGNAL LINE
12-8
Samsung Electronics
Schematic Diagrams
12-9 IF
12-10 CRT
12-11 2'nd IF PAL/SECAM-B/G, D/K, I OPTION
RED RED BLUE POWER LINE SIGNAL LINE RED BLUE
POWER LINE AUDIO LINE VIDEO LINE
Samsung Electronics
12-9
Schematic Diagrams
12-12 TTX
12-13 SECAM IF
12-14 PAL, SECAM
12-16 FRONT-A/V 12-15 MASTER
RED BLUE
POWER LINE SIGNAL LINE
12-10
Samsung Electronics
Schematic Diagrams
12-17 Voltages (VTR)
ICM601
MODE PIN NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 STOP 0 0 5 0 0 0 0 0 0.8 0 0 0 5 5 5 5 5 5 0 5 0 5 5 5 5 0 0 5 0 0 2.6 2.6 REC 0 0 5 0 0 0 0 0 0 0 0 1.5 5 5 5 5 5 5 0 5 0 5 5 5 5 5 0 5 0 0 3 3 PB 0 0 5 0 0 0 0 0 2.5 0 0 1.5 5 5 5 5 5 5 0 5 0 5 5 5 5 5 0 5 0 0 2.6 2.6 MODE PIN NO 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 STOP 0 2.5 2.6 2.6 2.6 0.6 2.6 5.0 0.2 0 0 0 0 0 0 0 0 0 0 5.2 0 0 5.2 5.2 0 2.6 2.6 0 5.2 0 5.2 0 REC 0 2.5 2.6 2.6 2.6 4.0 2.6 5.0 5.0 0 0 0 0 0 0 0 0 0 0 5.2 0 3.6 5.2 5.2 0 2.6 2.6 0 5.2 0 5.2 0 PB 0 65 2.5 66 2.6 67 2.6 68 2.6 69 4.0 70 2.6 71 5.0 72 5.0 73 0 74 0 75 0 76 0 77 0 78 0 79 0 80 0 81 0 82 0 83 5.2 84 0 85 3.6 86 5.2 87 5.2 88 0 89 2.6 90 2.6 91 0 92 5.2 93 0 94 5.2 95 0 96 5.0 5.0 5.0 5.0 0 5.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5.0 0 5.0 4.5 0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 4.5 4.5 4.5 0 0 0 0 0 0 0 0 0 0 0 0 0 5.0 0 0 0 5.0 5.0 5.0 5.0 0 0 0 4.5 4.5 4.5 4.0 4.0 4.0 0 0 0 0 0.6 0 2.5 2.5 2.5 0 0 0 100 5.0 5.0 5.0 0 5.0 5.0 99 5.0 5.0 5.0 0 0 5.4 98 5.0 5.0 5.0 0 0 0 97 0 5.0 5.0 MODE STOP PIN NO REC PB PIN NO MODE STOP REC PB MODE STOP PIN NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2.5 2.5 2.5 5.0 2.5 2.5 4.0 0.6 3.2 2.8 0 0 0 0 3.0 2.5 2.5 5.0 2.5 2.5 4.0 4.0 3.2 2.8 0 2.5 2.5 2.5 3.0 2.5 2.5 5.0 2.5 2.5 4.0 4.0 3.2 2.8 0 2.5 2.5 2.5 REC PB PIN NO 1 2 3 4 5 6 7 8 9 10 0 0.4 2.5 2.5 2.5 4 6.5 13.5 13.5 0 0 0.4 2.5 2.5 2.5 4 6.5 13.5 13.5 0 0 0.4 2.5 2.5 2.5 4 6.5 13.5 13.5 0
ICM201
MODE
ICM603
STOP REC PB
Samsung Electronics
12-11
Schematic Diagrams
12-18 Voltages (TV)
* Conditions of Measurement 1. Normal Condition 2. Receiving Color Bar Pattern 3. DC Voltage Q801 PIN NO. 1 2 3 4 5 6 7 8 9 STR6707
Units :Volts
IC301
TDA8356
IC902
24C08, 24C04
PIN NO.
PIN NAME VD-INPUT VD+ INPUT Vcc OUTPUT GND VFB OUT VO VI
VOLTAGES (V) 2.2 2.2 15.8 7.6 43.2 8.0 7.7
PIN NO. 1 2 3 4 5 6 7 8
PIN NAME GND GND GND GND SDA SCL GND VDD
VOLTAGE (V) 4.8 4.8 5.2
IC801 STAND-BY 298 0.8 6.3 POWER ON 291 0.5 0.7 1.3 1.3 7.7 IC501~IC503 PIN NO. 1 2 3 4
LTV817B STAND-BY 9.2 8.2 3.2 6.3
1
Units :Volts
2
PIN NAME C E B SINK DRIVE OCP F/B INH B+
POWER
3
14.3 13.3 1.2 7.7
4 5 6 7 8 9
TDA6101Q
Units :Volts
IC601
TDA7057AQ
PIN NO. 1 2 3 4 5 6 7 8 9
PIN NAME Vip Vcc Vin GND Iom Vdd Vcn Vcc Vof
VOLTAGES (V)
IC602 TDA7056
PIN NO. 1
PIN NAME VOL 1 SIG.GND IN 1 Vcc IN 2 SIG.GND VOL 2 OUT 2+ PWA GND OUT 2OUT 1PWA GND OUT 1+
VOLTAGES (V) 1.2 2.4 12.1 2.4 1.2 5.6 5.7 5.7 5.7
2.1 12.3 2.1 8.3 172.6 96~120 96~120 96~120
PIN NO. 1 2 3 4 5 6 7 8 9 PIN NAME NC Vcc IN GND NC A+ GND ANC VOLTAGES (V) 12.1 12.1 6.2 6.0 -
2 3 4 5 6 7 8 9 10 11 12 13
12-12
Samsung Electronics
Schematic Diagrams
12-18 Voltages (TV)
IC901 CXP853P40S-1 IC201 PIN NO. 1 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 ~ 59 60 61 ~ 62 63 ~ 64 Xtal EXtal RESET V.MUTE S.MUTE GND 2T AFT 1T AFT SCART ID BUS STOP P OFF DET XLC EXLC OSD R OSD G OSD B NC F/B NC S-L CTL GND VDD 2.5 2 2 3 4 5 6 7 8 9 10 11 12 ~ 22 23 24 25 26 27 28 29 30 31 32 33 V-sync TV POWER VPS POWER STBY-REC PB-H V/T/H AV/TUNER 2nd NT H 1st NT H D-coil Not used SCL SDA No used REMOCON VCR RESET TV CS TV SI TV SO TV CLK Vss DAVN 0.0 5.1 0.0 0.0 5.1 5.1 5.1 4.7 4.7 5.1 5.4 5.1 4.2 4.0 2.1 5.0 5.1 27 * Pin No 4, 5, 6, 7, 8, 11, 33, 38, 42 are High, Low output ports. 28 Y INPUT Y OUTPUT 1.9 2.5 55 56 AUDIO DEEMPHASSIS DECOUPLING SOUND DEMOD. 3.0 4.0 2.4 5.1 3.0 10 5.1 5.5 3.0 3.0 18 5.1 26 RGB SWITCH INPUT 0.2 54 TUNER AGC OUTPUT 5.8 19 20 21 22 23 24 25 BLACK CURRENT INPUT BLUE OUTPUT GREEN OUTPUT RED OUTPUT BEAM CUR LIMITER RED INPUT GREEN INPUT BLUE INPUT 6.8 2.6 2.5 2.7 2.9 3.4 3.4 3.4 46 47 48 49 50 51 52 53 VERT DRIVE POS VERT DRIVE NEG IF INPUT IF INPUT EHT/OVP INPUT VERT. SAWTOOTH CAPACITOR REF. CURR INPUT AGC DECOUPLING CAPACITOR 2.2 2.2 4.2 4.2 2.1 3.9 3.9 3.2 11 12 13 14 15 16 17 CHROMA INPUT Y/CVBS INPUT MAIN B+ INT CVBS INPUT GND AUDIO OUT DECOUPLING FILTER TUNING EXT CVBS INPUT 3.4 8.0 3.8 3.4 3.6 3.4 38 39 40 41 42 43 44 45 CVBS OUTPUT BLACK PEAK HOLD CAPACITOR HOR. OUTPUT SANDCASTLE OUTPUT PHI2 FILTER PHI 1 FILTER GND EAST-WEST DRIVE 3.3 4.0 0.4 0.5 4.1 3.9 3 4 5 6 7 8 9 EXT AUDIO INPUT VCO REF FILTER VCO REF FILTER PLL LOOP FILTER IF VIDEO OUTPUT SCL SDA BANDGAP DECOUPLING 3.9 3.6 3.6 2.7 3.4 4.7 4.7 6.7 30 31 32 33 34 35 36 37 R-Y OUTPUT B-Y OUTPUT R-Y INPUT SECAM REF OUTPUT X-TAL (3.58) X-TAL (4.43) LOOPFILTER BURST PHASE DET VCC 1.8 3.9 3.9 1.6 2.6 2.6 4.8 8.0 TDA8374 PIN NAME SOUND IF INPUT VOLTAGES (V) PIN NO. 29 PIN NAME B-Y OUTPUT VOLTAGES (V) 1.8
PIN NO. 1
PIN NAME H-sync
VOLTAGES (V) 1.2
PIN NO.
PIN NAME
VOLTAGES (V)
Samsung Electronics
12-13
Schematic Diagrams
12-18 Voltages (TV)
Terminal Voltages of ICs
IC PIN NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 IC203* TDA8395P 4.5 1.1 8.1 3.3 4.2 2.9 2.9 0.5 2.8 IC202 TDA4665 5.0 0.5 5.0 3.0 3.1 1.6 1.4 IC701 TC4053BP 0.9 0.9 0.9 0.9 0.9 4.3 4.3 9.0 ICK01* TDA3845 1.8 2.0 4.4 1.7 1.7 5.1 5.1 12.0 1.8 6.1 0.6 1.8 ICL01* STV8225 4.2 3.2 0.6 4.3 3.5 4.3 6.3 4.3 3.5 4.3 9.0 4.3 4.3 IC702 KA8405 6.1 0.9 6.1 6.1 5.3 9.0 IC703 KA8405 6.1 0.9 6.1 6.1 5.3 9.0
Unit : Voltage (V)
IC704 KA8404 6.1 6.1 0.9 5.3 9.0
12-14
Samsung Electronics