Daewoo TVZ 1321 Service Manual
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Daewoo TVZ 1321 Service Manual

Daewoo TVZ 1321 Service Manual

Tv/vcr in one board, chassis : cn-140 ntsc-m system
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Service Manual

TV/VCR IN ONE BOARD
CHASSIS : CN-140
NTSC-M SYSTEM
MODEL : TVZ 1321
TVZ 1341
TVZ 1341X
DAEWOO ELECTRONICS CO., LTD.

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Summary of Contents for Daewoo TVZ 1321

  • Page 1: Service Manual

    Service Manual TV/VCR IN ONE BOARD CHASSIS : CN-140 NTSC-M SYSTEM MODEL : TVZ 1321 TVZ 1341 TVZ 1341X DAEWOO ELECTRONICS CO., LTD.

  • Page 2: Power

    SPECIFICATIONS Format : VHS standard Video Horizontal Resolution : More than 220 lines Playback System : 2 rotary heads(14F8N) 4 rotary heads(14F8N4), helical Audio Frequency : SP : 100 Hz-10KHz scanning system LP : 100Hz-7KHz Luminance : FM azimuth SLP : 100Hz-5KHz recording Signal-to-Noise Ratio : Video : better than 43 dB (SP)
  • Page 3 • Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions. Afterwards, perform the following tests and confirm the specified values in order to ver- ify compliance with safety standards.

  • Page 4: Important Service Notes

    IMPORTANT SERVICE NOTES 1. X-RAY RADIATION PRECAUTION Connect at 1500 ohm watt resistor, paralleled by a 0.15 mfd, AC type capacitor, between a known good earth 1) Excessive high voltage can produce potentially haz- ground (water pipe, conduit, etc.) and the exposed metallic ardous X-RAY RADIATION to avoid such hazards, the parts, one at a time.

  • Page 5: General Adjustment

    GENERAL ADJUSTMENT 1. GENERAL R410 is shorted. In the majority of cases, color television will need only slight 7.WHITE BALANCE ADJUSTMENT touch-up adjustment upon installation. Check the basic characteristics such as height, focus and sub-bright. 1) Receive MONOSCOPE PATTERN signal. Observe the picture for good black and white details without 2) Set the each BIAS VR (VR903, VR904, VR905) and objectionable color shading.
  • Page 6 LEADLESS(CHIP) INSTRUCTIONS 1.LEADLESS(CHIP) COMPONENT REMOVAL INSTRUCTIONS • The following procedures are recommended for the replacement of the leadless components used in this unit. 1-1. Preparation for replacement 1-3. Installing the Leadless (chip) Component a. Soldering Iron 1) Presolder the contact points of the circuit board. Use a pencil-type soldering iron that uses less than 3o watts.
  • Page 7 2.LEADLESS (CHIP) COMPONENT IDENTIFICATION 2-1. Check the following before S. M. D Troubleshooting • Cracked Chipped component Body • Rejection of Solder from copper Pads or Component • Cracked Separated Solder Joints • Foreign Matter on Copper Pads • Peeling end Terminations Fractured Leads •...

  • Page 8: Color Purity Adjustment

    8. CONVERGENCE MAGNET ASSEMBLY 5) Remove the Rubber Wedges. 6) Rotate and spread the tabs of the purity magnet (see fig- POSITIONING ure 2) around the neck of the picture tube until the green Convergence magnet assembly and rubber wedges need belt is in the center of the screen.
  • Page 9 8-2. CONVERGENCE ADJUSTMENTS B. CIRCUMFERENCE CONVERGENCE ADJUSTMENT NOTE : This adjustment requires Rubber Wedge Kit. NOTE : Before attempting any convergence adjustments, 1) Loosen the clamping screw on the deflection yoke to the receiver should be operated for at least 15 min- allow to yoke to tilt.
  • Page 10 MECHANICAL DISASSEMBLY(DECK) 1.TOP VIEW Fig. 9- Tape Transport Mechanism Identification (Top View) 1. Earth Bracket Ass'y 10. T-Main Brake Ass'y 2. FE Head 11. T-Sub Brake Ass'y 3. S-Slant Pole Ass'y 12. Relay Lever 4. Tension Lever Ass'y 13. Capstan Motor 5.
  • Page 11 MECHANICAL DISASSEMBLY(DECK) 1.TOP VIEW Fig. 9- Tape Transport Mechanism Identification (Top View) 1. Earth Bracket Ass'y 10. T-Main Brake Ass'y 2. FE Head 11. T-Sub Brake Ass'y 3. S-Slant Pole Ass'y 12. Relay Lever 4. Tension Lever Ass'y 13. Capstan Motor 5.

  • Page 12: Bottom View

    2.BOTTOM VIEW Fig. 10- Tape Transport Mechanism Identification (Bottom View) 20. Capstan Motor 25. Record Safety Lever 21. F/L Rack 26. Loading Lever L 22. Connect Plate 27. Loading Lever R 23. Reel Belt 28. Drum Total Ass'y 24. Reel Gear Total Ass'y 29.
  • Page 13 3.F/L MECHANISM VIEW Fig. 11- Front Loading Mechanism Identification (Top view) 1. Top Plate Ass'y 7. Loading Shaft 2. F/L Bracket R 8. Loading Lever L 3. Prism Cap 9. Door opener 4. Release Lever 10. Safety Lever 5. Loading Lever R 11.
  • Page 14 4. General removal view assembly. 3. Remove the cassette holder assembly (Fig. 13) Front Loading Mechanism Removal (Fig. 12) 4. Remove the prism cap and remove one (1) screw hold- NOTE : The front loading mechanism must be in the eject position to remove it.
  • Page 15 Fig. 16- Loading Lever Ass'y Disassembly NOTE : Reassemble the cassette loading mechanism using the reverse procedures. Confirm that the two (2) bosses on the left side of the cassette holder are inserted into the groove in the left side of the top plate. Insert the two (2) bosses on the right side into the F/L bracket R (Fig.
  • Page 16 L/C Bracket Assembly removal (Fig. 22) 1. Remove one (1) screw from the L/C bracket assem- and remove the L/C bracket assembly from the deck mechanism (Fig. 22) NOTE : When reassembling, refer to Fig. 23 for alignment instruc- tions. Replacement of Pinch Lever Total Assembly Removal (Fig.
  • Page 17 Fig. 23- L/C Bracket Assembly Alignment Fig. 25- Main Plate Removal Cam Gear, and F/L Rack Removal (fig. 22) 1. Remove the cam gear form the deck mechanism. 2. Remove the relay lever from the main base Tension Band Assembly Removal (Fig.
  • Page 18 FE Head Removal (fig. 31) Remove one (1) screw (1) and lift the FE head (2) from the main base. Fig. 27- Tension Band Assem- Fig. 28- Tension Band Assem- bly Removal (2) bly Alignment With Main Base Capstan Motor Removal (Fig.
  • Page 19 Some disassembly is required to access the adjustment locations. Refer to the "Disassembly Selection" in this publication for disassembly instructions. Caution : Use an isolation transformer when servicing. 5. Mechanical Checks/Gear Alignment (fig. 1, 2, 3, 4, 5) When mechanical problems occur or when reassembling parts in this mechanism, be sure to confirm the following instruc- tions to confirm the following: 1.
  • Page 20 3. There are two (2) triangular marks on the mode sense switch. When installing the L/C bracket assembly on the main base, confirm that the two (2) triangular marks align with each other in the EJECT mode (Fig. 3) Fig. 3 - Mechanical checks/Mode Sense S/W Alignment 4.
  • Page 21 5. Confirm that the triangular mark "A" on the Loading Gear L Ass'y is aligned with the notch "B" in the Loading Gear R Ass'y in EJECT mode (Fig. 5) 6. Make sure that the teeth of the Loading Rack are aligned with the those of the Loading Gear R so that hole "C" of the Loading Rack aligns with the circular mark "D"...
  • Page 22 6. Tension checks Back Tension Measurement /Adjustment (fig. 6, 7) 1. Confirm that the position of the tension pole is correctly positioned. If not, refer to the "Tension Pole Position Adjustment Procedures" 2. Play back a T-120 tape from the beginning for about 20 seconds (wait until tape transporting system becomes stable). 3.
  • Page 23 Operating the VCR Without a Cassette Tape 1. Remove the cassette Loading Mechanism. 2. By hand revolve the worm gear counterclockwise 7-8 times until pole base loading process starts automatically. 3. Then PLAY mode appears. If you want ANOTHER mode, Press the desired button. 4.

  • Page 24: Mechanical Adjustments

    MECHANICAL ADJUSTMENTS Tape Path Alignment Procedures The tape transporting system is precisely aligned at the factory and under the normal circumstances will not require adjust- ment. However, if noise appears in the playback picture, it can be considered that the tape damage has occurred or the tape path has changed, readjustment of the tape path is necessary.
  • Page 25 THE SCHEMATIC DIAGRAM OF TAPE TRANSPORTING SYSTEM TENSION POLE T-GUIDE ROLLER(P S-GUIDE POST A/C HEAD FE HEAD T-GUIDE POST S-GUIDE ROLLER(P CAPSTAN SHAFT S-SLANT POLE PINCH ROLLER DRUM VERTICAL POST T-SLANT POLE CORN SCREW...
  • Page 26 DESCRIPTION 1. TVZ1321/TVZ1341/TVZ1341X 1-1. FRONT OF TV/VCR FRONT DOOR 1-2. SIDE OF TV/VCR SPEAKER...
  • Page 27 1-3. REAR OF TV/VCR VHF INPUT *Rear of TV/VCR’s VHF Input Connect VHF antenna to this terminal.
  • Page 28 2. PANEL VIEW 2-1. FRONT PANEL The section below summarizes the buttons, controls, and terminals that you will use with your TV. Your TV/VCR's Front Panel Below you will find short descriptions of the buttons and indicators on the front panel. These are used following functions. 1 VIDEO IN jack Use this jack to receive a video signal from another A/V component.

  • Page 29: Table Of Contents

    3. Remote control 1 POWER Use this button to turn your TV/VCR on or off. 2 TV/CATV Use the button to set up your TV/VCR to receive signals from an antenna (TV) or a cable system (CATV). POWER MUTE RECALL 3 TV/LINE Use this button to select between viewing the signal coming from the antenna terminal (TV) or the signal...

  • Page 30: Tv/Catv

    15 MUTE Use to turn the TV/VCR's sound on and off. 16 RECALL Press this button to display the current time, the counter, channel number or other status items. POWER 17 Number buttons (0-9) MUTE RECALL Use these buttons to change channels or select menu items.
  • Page 31 4. Remote controller (Service) POWER Use this button to turn your TV/VCR on or off. ATK (Auto tracking) If the screen has noise and abnormal when playback mode, Press this button to get fine playback Quality. STOP (ENTER) Press this button when a tape is moving to stop the tape; press it when the tape is stopped to eject it.

  • Page 32: Tv/Line

    15 TV/CATV Use this button to set up your TV/VCR to receive signals from an antenna(TV) or a cable system(CATV). 16 TV/LINE Use this button to select between viewing the signal coming from an antenna terminal(TV) or the signal coming from the A/V Jacks(LINE). 17 FF (Fast Forward) Use this button to “Fast Forward”...

  • Page 33: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS 1. SERVO 1-1) X-path and P Adjustment Item Mode Adjustment parts Check point Test equipment Test tape Input signal X-path PLAY CONE SCREW PY09 Oscilloscope COLOR BAR P2, P3 PY05 Location of Adjustment Parts Observation Waveform MAIN PCB Horizontal Axis : S/DIV Vertical Axis : CH1 : H/SW, CH2 : ENVELOPE BOARD...
  • Page 34 1-2) PLAYBACK PHASE Adjustment Mode Adjustment parts Check point Test equipment Test tape Input signal Play RN90 PY05 Oscilloscope COLOR BAR Location of Adjustment Parts Observation Waveform MAIN PCB Horizontal Axis : 50µS/DIV Vertical Axis : CH1 : SW30, CH2:V.OUT PY09 PY05 BOARD...
  • Page 35 2. AUDIO 2-1) AUDIO CIRCUIT ADJUSTMENT METHOD Item Mode Adjustment parts Check point Test equipment Test tape Input signal Audio RU57 RC HEAD 10Ω Audio level meter Blank tape NONE Record Bias Location of Adjustment Parts Observation Waveform MAIN PCB Horizontal Axis : Vertical Axis : PY09...
  • Page 36 2-2) Audio Azimuth Adjustment Item Mode Adjustment parts Check point Test equipment Test tape Input signal Audio Azimuth PLAY AC HEAD P602 Signal GEN. 7KHz Adjustment SCREW Oscilloscope MONO Bar Location of Adjustment Parts Observation Waveform MAIN PCB Horizontal Axis : 0.1mS/DIV Vertical Axis : 0.1V/DIV P602 BOARD...
  • Page 37 3. VIDEO 3-1) Y NOISE REDUCTION Mode Adjustment parts Check point Test equipment Test tape Input signal RY 34 PY05, PY09 Oscilloscope Multi Burst Signal gen. with 3.58 MHz Location of Adjustment Parts Observation Waveform Y/C PCB Horizontal Axis : 10µS/DIV Vertical Axis : 20 mV/DIV PY09 PY05...
  • Page 38 3-2) COLOR NOISE REDUCTION Mode Adjustment parts Check point Test equipment Test tape Input signal RY 91 PY09 Signal gen. Color Bar Oscilloscope Location of Adjustment Parts Observation Waveform Y/C PCB Horizontal Axis : 10µS/DIV Vertical Axis : 50 mV/DIV PY05 PY09 RY91...

  • Page 39: Signal Flow

    SIGNAL FLOW 1. VIDEO & AUDIO 1-1. FROM RF TO COMPOSITE VIDEO 1-1. To select a channel the tuner must receive CLOCK, DATA and ENABLE from the TIMER IC (I701). Then the tuner(U101) selects a channel frequency by means of PLL circuit operation and outputs a IF signal(Intermediate Fre- quency).
  • Page 40 SWITCHING TABLE OF I503 MODE PLAY TOGGLE (EE) VIDEO AUDIO AUDIO VIDEO (Top View) * The input signal is routed to the output port when the switching port is at logic high state.
  • Page 41 2. Power circuit (Power supply circuit) 2-1. Abstract and Pin Function The SMPS(Switch Mode Power Supply) can supply a stable output voltage to each circuit, provided that the input voltage is within the range of between 108-132 VAC at 60HZ. Regulation is accomplished by PWM(Pulse Width Modulation) of IC STR-S5707.
  • Page 42 2) Function of Each Termiinal No. of Terminal Symbol Description Function Collector Terminal Collector of TRr(Power Transistor) Ground Terminal Ground(Emitter of PTr) Base Terminal Base of PTr SINK Sink Terminal Base Current (IS) Input Overcurrent Protection Terminal Overcurrent Sensing Signal Input Inhibit Terminal Off Time Synchronizing Latch Terminal...
  • Page 43 2-3. SMPS BASIC OPERATING DESCRIPTION 1) Power supply block circuit T810 D802-D805 C802-C805 TSM-4242A3 :1S1888 4700P 500V C801 F801 D803 D805 O.1U(M) L801 AC 125V 4A C803 C805 AC250V TLF-472BE R812 R803 120K 1 OHM 7W 1/2W CEMENT C827 1000P(HIKR) C815 PWC1 C806...
  • Page 44 3. DEFLECTION CIRCUIT Vertical, horizontal drive pulses originate at M52335ASP(I501). The vertical drive pulses are connected to Vertical Drive IC TA8445K(I301) and drive vertical deflection coils. This horizontal deflection drive pulses drive the horizontal output circuits and deflection coils and also supply 26.5v, 180v, high voltage 25kV, focus voltage and screen voltage by driving the FBT.
  • Page 45 6. SERVO/SYSCON CIRCUIT OPERATION 1) Summary • When power is applied to the TV/VCR. The Servo-Syscon 1 chip confirms the operating mode of the deck mechanism, via the CAM SW. If the mechanism is not in it’s initial mode, the capstan motor will advance the mechanism to the proper position, depending if a tape is present or not.
  • Page 46 2. REC mode VIDEO IN VIDEO OUT IY03 LA7411 REC EQ IY01 PRE-AMP LA7423A Y/C PROCESS IC 7.1M LPF HA SW REC "H" IY02 LC89960 IH CCD IC • Composite video enters, IY01 at pin 31 where both the chroma and FM luminance signals are down converted to lower frequencies.
  • Page 47 • All signal flow is same to TVZ1321(2HD). • But, the difference between TVZ1321(2HD) and TVZ1341(4HD) is EP(SLP) Recording. • In case of 2HD, SP(H) & SP(L) heads are operated. • In case of 4HD, EP(H) & EP(L) heads are operated. 3.
  • Page 48 IMPORTANT IC'S OPERATION IY03 (LA7411) 1. Case Outline : DIP-24S (300mil) Plastic Package 2. Application : VHS format VTR Record and Playback Head Amplifiers 3. Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Maximum supply voltage VCC max Allowable power dissipation Pd max 6.5°C...
  • Page 49 6. Pin Function Table Pin-function Type DC voltage(V) Input/Output configuration Remarks HA (EP/SP) 1kΩ COMP 1.6V 100kΩ 1.6V RF-SW SW30 REC MUTE 1kΩ (REC-MUTE) COMP 1.0V 3.2V RECMUTE COMP 50kΩ 1.0V 3.2V H-SYNC 20kΩ Syac H.SYNC COMP 1.5V 80kΩ 1.2V REC-H 20kΩ...
  • Page 50 Pin-function Type DC voltage(V) Input/Output configuration Remarks AGC-FLT REC-CUR 4V : +3.5dB ADJ2 2.5V : ±0dB COMP (OPEN) 1V : -6dB COMP REC-CUR ADJI REC-BIAS From REC-OUT 16.7k PB Amp 3.3k 2'nd Filt 1.5k 1.6k...
  • Page 51 Pin-function Type DC voltage(V) Input/Output configuration Remarks PB-L-IN PB-H-IN REC ON PB-L-SW REC ON PB-H-SW ON resistance 4 to 6Ω PB ON 7. Pin Operation VIDEO PREAMP IC LA7411 MODE STOP PLAY REW/FWD REV/FF PAUSE STILL .2.6...
  • Page 52 IY03 (LA7416) 1. Application : 4HD VHS format VTR Record and Playback Head Amplifiers 2. Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Maximum supply voltage VCC max Allowable power dissipation Pd max 6.5°C °C Operating temperature Topg -10 to +65 °C...
  • Page 53 5. Pin Function Table Pin-function Type DC voltage(V) Input/Output configuration Remarks PB Amp 2’ nd Filt TRICK-H Trick 1 3.0V NORMAL 1.0V Trick 2 COMP-OUT H : 4.5 or more EP>SP ENV L : 0.7 or less : High OPEN HA (EP/SP) 1.6V RF-SW...

  • Page 54: Rec-Cur Pb

    Pin-function Type DC voltage(V) Input/Output configuration Remarks REC-H 2.0V ENV DET See attached sheet PB-OUT REC-C-IN REC-Y-IN AGC-FLT 4V : +3.5dB REC-CUR 2.5V : ±0dB ADJ2 (OPEN) 1V : -6dB REC-CUR ADJ1...

  • Page 55: Rec

    Pin-function Type DC voltage(V) Input/Output configuration Remarks REC-BIAS REC-SP OUT REC-EP OUT SP-L-IN SP-H-IN EP-L-IN EP-H-IN SP-L-SW SP-H-SW EP-L-SW EP-H-SW PRE-GND...
  • Page 56 IY02 (LC89960) 1. Overview The SANYO LC89960 is a 1H delay line for NTSC television systems. Only an external low-pass filter is required to implement a 1H delay line. 2. Features • Single 5V power supply. • 1H delay signal can be obtained with low-pass filter and 3.58MHz clock input. •...
  • Page 57 IY01 (LA7423A) 1. Case Outline : DIP-36S(400mil) Plastic Package 2. Application : VHS VTR Video signal Processor (Y/C single-chip) 3. Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Maximum supply voltage VCC max Allowable power dissipation Pd max 65°C 1070 °C...
  • Page 58 5. IY01 (LA7423A : Y/C PROCESS IC) Pin-function Type voltage(V) Signal waveform Input/Output configuration Remarks SYNC-DET -OUT S-DET-OUT REC-Y REC = 2.4V MAIN. DE. PB = 2.0V EMPH-OUT REC = 3.0V CLAMP PB = 3.2V EMPH-OUT REC = 2.1V R/P CTL PB = 4.4V REC = 2.1V MAIN-EMPH...
  • Page 59 Pin-function Type voltage(V) Signal waveform Input/Output configuration Remarks SP 0~1.5 [V] MODE-CTL LP 1.5~3.2 [V] EP 3.2~5.0 [V] REC = 3V VCA-FILT PB = 3V REC = 2.2V VCA-IN PB = 2.2V REC = 1.0V CCD DRIVE PB = 1.0V PIC-CTL REC = 3V SOFT : 2.0~2.5V...
  • Page 60 Pin-function Type voltage(V) Signal waveform Input/Output configuration Remarks REC = 2.5V NC-CTL under 1.5V N.C OFF 2.0~3.0V N.C CTL PB = 2.5V over 3.8V Y/CMix OFF (N.C. Center) REC C-OUR REC =2.4V Y-FM PB-YC-IN PB = 3.2V +Low Chroma AGC-TC 1 REC = 2.4V BALANCER PB = 2.3V...
  • Page 61 Pin-function Type voltage(V) Signal waveform Input/Output configuration Remarks REC = 2.8V SLD-FILT PB = 2.8V REC =2.8V AFC/APC FILT PB = 2.8V REC = 1.9V XO mode when over 3.5V C-OUT PB = 1.9V CNR ON when over 3.5V Color = 1.9V KILL-FILT Killer = 3.1V REC = 1.7V...
  • Page 62 Pin-function Type voltage(V) Signal waveform Input/Output configuration Remarks REG = 4.2 4.2V SYNC OUT 1.75V when CNR mode VCC-1 VIDEO OUT QV. QH INS. CHARA INS ROT-PLS...
  • Page 63 Pin-function Type voltage(V) Signal waveform Input/Output configuration Remarks REC = 2.7V VIDEO-IN PB = 2.7V REC = 1.6V AGC-TC2 PB = 1.6V REC = 0V SVHS-FM-IN PB = 3.7V Normal VHS 0V MOD-OUT REC = 3.0V DOC-STOP-H PB = 3.6V 3.95 DOC-STOP REC = 0V NOR-FM-IN...
  • Page 64 IU01 (BA7790LS) 1. FUNCTION (1) Circuit essential for a standard sound signal processing system as a PB AMP, REC AMP, ALC circuit, EQ selecting switch and high voltage head switch have been integrated onto a single 1 chip. (2) Built-in LINE/TUNER INPUT selecting switch. (3) Built-in summary 3 mode EQ switch and it can be obtained EQ characteristics of each mode.
  • Page 65 5. Terminal Function Table Terminal Terminal No. Description Function Terminal Form Voltage HEAD EQ Switch for selecting the 0.0V 220kΩ/27Ω(ON) head resonance capacitor PB IN PB AMP input/PB side head switch 3.4V REC : 120kΩ REC : 11Ω(ON) REC HSW REC side high voltage head switch 0.0V REC : 11Ω(ON)
  • Page 66 IN05(BA6209) 1. Function : Reversible Motor Driver 2. Pin Operation IN05 BA6209 LM DRIVE MOTOR 12V To DECK CN35 CCN11 0.01 RCN 22 100U DN13 3.3K LM (+) ZPD 6.2 LM (-) Pin 51 : LM ON(H) Pin 50 : LM (+)/(-) IN01 IN03 (MC4558C) 1.
  • Page 67 I301(TA8445K) RAMP GENERATOR Vertical Drive Vertical Out 50/60Hz Vertical trig Pump up 1. Operating Conditions (Ta = 25°C) Item Symbol Typ. Max. Unit Drive vcc Pump up Vcc – Vertical Output Vcc – – Ap-p 2. Operating Characteristics (Ta = 25°C, Vcc1 = 9V, Vcc2 = 24V) Measurement Item Symbol...
  • Page 68 IN01 (Syscon : TMP91C642AN-3227) SYSCON IN01 MODE STOP PLAY REW/FWD REV/FF PAUSE STILL...
  • Page 69 MODE STOP PLAY REW/FWD REV/FF PAUSE STILL...
  • Page 70 PIN NAME DESCRIPTION S/CLK Serial Clock S/OUT Serial OUT, Contact with TIMER IC Serial IN S/IN Serial IN, Contact with TIMER IN Serial OUT SYNC (L) NOT USED VCR/ON(L) NOT USED LINE/TV NOT USED NOT USED C/SYNC Composite Sync SLOW STEP Adjusting Vth of CTL/P, Sets “L”...

  • Page 71: Reset

    PIN NAME DESCRIPTION AUDIO SLP(H) Set 'H' When SLP mode. D/PWM Drum motor control PWM output *period of PWM : 23.4KHz (6MHz/256) C/PWM Capstan motor PWM output * period of PWM : 23.4KHz (6MHz/256) GND(D) Digital GND NOT USED CST IN(L) NOT USED REC(L) Set 'L' when recording...
  • Page 72 PIN NAME DESCRIPTION CAM A CAM Detection input port CAM B POWER MODE CAM C 2.9 ~ 3.7 EJECT 4.35(H) CAM D 3.7 ~ 4.5 STAND-BY(INITIAL) 4.35(L) 2.2 ~ 2.9 REV 5.30(L) 2.9 ~ 3.7 STOP 2.65(L) 0.0 ~ 2.2 PLAY, QUE 2.65(H) 2.2 ~ 2.9 FF/REW 2.10(L)
  • Page 73 I701(Timer : M37267M6 - 103SP) 1. Pin Layout M37267M6 - 103SP HSYNC P52/R R OUT HSYNC INPUT G OUT VSYNC P53/G VSYNC INPUT B OUT AFT INPUT P40/MXR/AD4 P54/B BLINKING OUTPUT N. C. P41/INT2/MXG P55/OUT1 CONTRAST PWM OUTPUT SYNC DETECT INPUT P42/TIM2/MXB P04/PWMO BRIGHT PWM OUTPUT...
  • Page 74 2. Pin Description PIN NO NAME DESCRIPTION ACTIVE HSYNC HSYNC HSYNC INPUT TERMINAL VSYNC VSYNC V SYNC INPUT TERMINAL /MXR/AD4 AFT SIGNAL INPUT TERMINAL /INT2/MXG N. C. NOT USED – /TIM2/MXB SYNC DETECT INPUT TERMINAL HIGH /TIM3/MXOUT N. C. NOT USED –...
  • Page 75 PIN NO NAME DESCRIPTION ACTIVE X IN MAIN CLOCK (4.19MHz) XOUT X OUT MAIN CLOCK (4.19MHz) MAIN CPU GND TERMINAL – MAIN CPU POWER TERMINAL (+5 CONNECT) – /OSC2/XCIN OSC2 SUB CLOCK (32.768KHz) /OSC2/XCOUT OSC1 SUB CLOCK (32.768KHz) RESET CPU RESET INPUT TERMINAL RESET N.
  • Page 76 PIN NO NAME DESCRIPTION ACTIVE /PWM1 BRIGHT BRIGHT PWM OUTPUT TERMINAL /PWM0 CONTRAST CONTRAST PWM OUTPUT TERMINAL /OUT1 BLANK BLINKING OUTPUT TERMINAL B OUTPUT TERMINAL G OUTPUT TERMINAL R OUTPUT TERMINAL...
  • Page 77 I501 (CHROMA IC : M52335SP - 600) 1. Pin Layout 1501 M52335SP RF AGC OUT EXT AUDIO IN VIDEO OUT SOUND DET COIL AFT OUT SOUND DET OUT AFT DEFEAT AF OUT SIF IN IF AGC FILTER VIDEO VCO COIL RF AGC DELAY ADJ VIDEO VCO COIL GND-1(VIF, SIF)
  • Page 78 2. DESCRIPTION OF PINS Voltage and Function Peripheral circuitry Circuit description wave Information The Input impedance is 18kΩ. Add bias to the 2.4k outside as shown right for use. 4.7k 2.4k AUDIO 3.25V 3.9k 4.5V The EM detector is a quadrature detector and externally connects to a tank coll or discrimina-...
  • Page 79 DESCRIPTION OF PINS (cont.) Voltage and Function Peripheral circuitry Circuit description wave Information Dynamic AGC circuit is used to improve AGC response characteris- tics. Set a filter constant to IF AGC avoid a sag around 4.4 to 1.5V 70dBµ. FILTER IF AGC Voltage 7.5k 4.4V...
  • Page 80 DESCRIPTION OF PINS (cont.) Voltage and Function Peripheral circuitry Circuit description wave Information Power supply pin for horizontal and vertical H. Vcc systems. it's current is about 34mA. Increasing R provides a faster AFC response to minimize picture skew- ing in the VCR mode. AFC FILTER 6.25V However this will...
  • Page 81 DESCRIPTION OF PINS (cont.) Voltage and Function Peripheral circuitry Circuit description wave Information Voltage goes up if a sync signal is entered and horizontal AFC is locked; otherwise, the 8V(Synchronous) voltage goes down. COINCIDEN- therefore, the pin can be CE OUT 0V(Asynchronous) also used as a MUTE detector.
  • Page 82 DESCRIPTION OF PINS (cont.) Voltage and Function Peripheral Circuitry Circuit description wave Information Video output pin. The flyback pulse is required to trigger an internal blanking pulse, which also blanks chroma sig- Y. OUT nal. Open emitter output with maximum current of about 5mA.
  • Page 83 DESCRIPTION OF PINS (cont.) Voltage and Function Peripheral circuitry Circuit description wave Information Applying voltage of 2.5V or more causes blanking FAST BLK IN 2.5V Cap character is changed by R. As R is decreased, the cap character becomes nar- rower, but phase, jitter- ing is reduced.
  • Page 84 DESCRIPTION OF PINS (cont.) Voltage and Function Peripheral circuitry Circuit description wave Information Pin used for holding the most dark parts of a video signal. The black peaks are averaged out by this circuitry. As R BLACK About 3.2V 1.5k 1.5k increases more of the HOLD blacks are held.
  • Page 85 DESCRIPTION OF PINS (cont.) Voltage and Function Peripheral circuitry Circuit description wave Information Used to connect the hold capacitor. 3.9k PEDESTAL About 2.2V 1.07k CLAMP 1.4k 1.2k 1.5k Sharpness control pin. By increasing the volt- age at this pin;the pic- VIDEO TONE ture becomes softer.
  • Page 86 DESCRIPTION OF PINS (cont.) Voltage and Function Peripheral circuitry Circuit description wave Information Output signal level is 1.5Vp-p. Y SW OUT 2.5V 1.125k Sync separation is of the emitter input type. Verti- cal sync separation is done inside the 1C. SYNC IN.
  • Page 87 DESCRIPTION OF PINS (cont.) Voltage and Function Peripheral circuitry Circuit description wave Information Volume control pin. SIF IN/ATT 4.5V 29.3p 2.4k 4.5V A voltage above 2.5V, defeats the AFT. 23.3k DEFEAT Current output type. As load resistor R is increased, detector sen- sitivity becomes higher but output becomes AFT OUT...
  • Page 88 DESCRIPTION OF PINS (cont.) Voltage and Function Peripheral circuitry Circuit description wave Information Max. current output is 0.4mA. 0.4mA RF AGC OUT 0.4mA...
  • Page 89 IN04(TC4053BP) 1. Function : Triple 2 Channel Analog Multiplexer/Demultiplexer. 2. Signal Input & Output Diagram 3. Operation Summary This IC operates in case of Slow, Still, Que and Review in 4HD. To obtain exact signal waveform, various signals are input to each channel following are each controlled signal logics. 1) Que 2) STILL Ch1 : SW PULSE...
  • Page 90 3) Que 4) Que Ch1 : SW PULSE Ch1 : SW PULSE Ch2 : pin 15 * Logic OR function Ch2 : comp SP SLP * Logic AND function Ch3 : pin 11 CH3 = CH1 CH2 Ch3 : C Rotary CH3 = CH1 CH2...
  • Page 91 IMPORTANT SIGNAL WAVEFORMS IY01 PIN 14 (PB ENVELOPE) IN03 PIN 1(CTL HEAD +) 500mVp-p 34mS 2.5Vp-p 34mS IY01 PIN 2 (PLAY) IN01 PIN 20 (CTL PULSE) 500mVp-p 63.5 S 5.2Vp-p 34mS I501 PIN 38 IY01 PIN 2 (REC) 2.5Vp-p 63.5 S 500mVp-p 63.5 S...
  • Page 92 I501 PIN 43 & IY01 PIN 31 VIDEO IY01 PIN 28 VIDEO OUT (PLAY) 2.2Vp-p 63.5 S 2.2Vp-p 63.5 S IY01 PIN 26 (C SYNC) P504 PIN 4 (-Y) 3.6Vp-p 63.5 S 34Vp-p 63.5 S PH502 PIN 2 (HEATER PULSE) 24Vp-p 63.5 S...
  • Page 93 AUDIO WAVEFORMS. (IU01-3) REC (IU01-10) PLAY (IU01-12) PLAY (IU01-16) REC 50Vp-p 14.5 S 1.5Vp-p 10 S 0.5Vp-p 10 S 150mVp-p 10 S (IU01-21) REC (IU01-22) REC (IU01-23) REC (SP Mode) (LU06-7) REC 1.1Vp-p 10 S 1.5Vp-p 10 S 150mVp-p 10 S 25Vp-p 14.5 S...

  • Page 94: Viss

    TROUBLESHOOTING ACCORDING TO CAUSE AND SYMPTOM 1. POWER SUPPLY UNIT 2. VERTICAL, HORIZONTAL UNIT 3. SERVO/SYSCON UNIT 4. VIDEO UNIT 5. AUDIO UNIT – Before Troubleshooting, Read the following. • Picture will not appear, if the following problems exist.: 1) When power supply is dead. 2) When horizontal output TR is dead 3) When operation of overcurrent protection circuit.

  • Page 95: Viss

    1. Power supply unit TV will not turn ON Is there AC power Input Check F801 & Power cord Are diodes ok? Check L801, D802, D803, D802, D803, D804, D805 D804, D805 Is there voltage at the +termi- Check R803, C806 nal of C806? Are D811, D812, D813, D814 Check D811, D812, D813,...
  • Page 96 – Check 125V unit(Deflection PCB) Is the over current protection Check R832, R809 circuit activated ? Are voltages at the base & collector terminals of Q402 Check T401 and Q402 normal ? Change Is the 26.5V output from FBT R301 and Check R301 and D301 normal? D301...
  • Page 97 2. VERTICAL, HORIZONTAL UNIT. Horizontal Line only on the (No Vertical) screen. Is there 25V and 9V Check power circuit at pin 7 and pin 1 of I301 ? Is waveform at pin 2 of I301 Check I701 pin 2 normal ? Check the waveform at pin Check C312...
  • Page 98 Horizontal screen is abnormal Is base waveform of Is the collector waveform of Q402 normal ? Q401 normal ? Check T401 Check T402 and L401 pin 10 Check the capacitance of C412 and solder connection Check R406, C413, L402, C409, D404, R407.
  • Page 99 3. SERVO/SYSCON UNIT Playback picture is not good. Noise appears although Adjust tracking adjusting tracking Check and Noise streaks moving up and readjust the Noise appears although down on the screen. tape path on the changed the cassette tape. Deck Check PY 03 Is there CTL pulses at and CTL Amp...
  • Page 100 Playback picture is not good. Noise appears over The entire screen scrolls up and down the entire screen Check P.G Adjustment Check D. PG Are SW pulses input IN01 pin Is the SW pulse supplied applied to 18 and connector from pin 23 of IN01 PRE-AMP circuit ? (PY04)
  • Page 101 Drum Motor dose not rotate. Is the Motor 12V supplied Is I805 ok ? Check I805 to PY04 pin 1 Check IN05 Check PY04 and Is D. PWM applied RCN47, RN44, CN21, to pin 30 of IN01 ? CCN44 Check connector PY04 and DRUM Motor Capstan Motor does not rotate.
  • Page 102 Drum Motor and Capstan M/T rotate at irregular speed (In REC mode) Is C. sync applied to Check C. Sync (PIN26) of pin 12 of IN01 VIDEO IC (IY01) and pattern Check IN01 The instrument goes into the emergency mode. Though AC power is connected, STAND-BY LED blinks.
  • Page 103 Cassette loading inoperative. Is Motor 12V Check I805 IN05 pin supplied ? Check connector PAN04 pin Are there changes in the cam and CAM SW and data when the cassette is in ? DECK Mechanism Is 5V supplied at pin Is 6V applied to pin of IN05 Check IN01...
  • Page 104 4. VIDEO UNIT EE MODE Picture NG Is video signal input into pin 42 Check PIF circuit and (Video jack) and 45 of I501 LINE IN JACK Is 5V supplied at pin 10 Check ON/OFF and 9V supplied at pin 12 of I501 9V circuit.
  • Page 105 Power supply is normal No video Check Check clock, enable and Check pin 35, 36, 37 oscillation data of tuner of I701 at pin 24 of I701 Is IF signal from tuner normal ? Check Tuner Refer from EE mode no video trouble shooting flow chart...

  • Page 106: Slow

    PB video signal missing Is envelope output from Check power Is 5V supplied at IY03 pin 7 ? circuit IY03 pin 15 ? Check IN01 Is SW pulse input into pin 23 IY03 pin 2 ? Clean head or change head Check Power Check IY01 pin Is signal output from...
  • Page 107 Self Record playback video signal NG Check EP mode Is REC(H) output from Check QY06 and IN01 pin36 PAY01 pin3? Is REC color signal Is signal input into IY01 Check IY01 output from pin 31 ? IY01 pin 14 ? Check IY01 Is luminance signal output from IY01 pin 2 ?
  • Page 108 E. TVZ1341 only Special Playback is NG. (STILL, SLOW, REVIEW, QUE) Is H.A SW input to IY03 Check IN04, RN17, RN92,DN18, pin4? DN19, DN20, DN21, RN91 Is comp out output from Change IY03 IY03 pin3? Is Color Rotary input to Check QN11, RCN20, RCN86, RCN87 IY01 pin 30 ? Is trick(H) input to...

  • Page 109: Stop

    5. AUDIO UNIT. NO AUDIO SOUND AT EE(STOP) MODE Check Z103, CC115, CC116, L104 Check if there is output Check if there is input at at pin 4 of I501 pin 48 of I501 Check Q101 Check if there is input at Base pin 2 of I501 TV : L...
  • Page 110 No sound in the playback mode Is the output at pin 22 Is 11V applied to pin Check power of IU01 ? 7 of IU01 ? circuit Is the signal applied to pin Is Q101 Is 5V applied to pin Check QN07 1 of I501 base 'H'?
  • Page 111 C. This flow chart must be used only in Record Mode. Audio sound is not output when self Record-Playback Check I503 pin 12 RF/AV Check I701 RF(L)/AV(H) Check I503 pin 11 Check A/V Jack Check I503 pin 6 RF(H)/AV(L) Check I701 Check I501 Check I503 pin 8...

  • Page 112: Electrical Parts List

    ELECTRICAL PARTS LIST 1. STANDARD PART NUMBER CODING 1-1. RESISTOR CODING 1. Fixed Resistor Coding Type of Resistor Type of Resistor Distance Value Tolerance Code Wattage Composition Resistor Code Distance Symbol tolerance Example Carbon Resistor ±1% 1/6w 2.5mm 0.47Ω Fusible Resistor ±2% 1/8W 5.0mm...
  • Page 113 1-2. CAPACITOR CODING 1. Normal Distance Value (Same as Fixed (Same as Fixed Type Distance (Same As Resistor) Resistor) Code Type Code Voltage Fixed Resistor) 6.3V Aluminum Barrier Layer Ceramic Shape Electrolytic Line Across Characteristic Mylar Styrol Metalized Polyester Mica 100V Tantal 125V...
  • Page 114 2.PARTS LIST LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK 13100 58G0000078 COIL DEGAUSSING DC-1400 13200 48519A4610 CRT GROUND AS 1401H-1015-1P V901A 48A96414N1 CRT BARE A34JLL40X 00010 58D1000046 COIL DY ODY-M1401 PA601 4850703S46 CONN AS YH025-03+YST025+USW=400 SP01 4858309110 SPEAKER 3W 8 OHM A30C-560 ZTR10 48B3035A01 T/REMOCON...
  • Page 115 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK R911 RD-AZ151J- R CARBON FILM 1/6 150 OHM J R912 RD-AZ151J- R CARBON FILM 1/6 150 OHM J R913 RD-AZ151J- R CARBON FILM 1/6 150 OHM J R914 RD-AZ821J- R CARBON FILM 1/6 820 OHM J R915 RD-AZ821J- R CARBON FILM...
  • Page 116 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK C816 CEXF2C101V C ELECTRO 160V RSS 100MF (16X25) TP C818 CCZF1E103Z C CERA 25V F 0.01MF Z (AXIAL) C821 CEXF1H220V C ELECTRO 50V RSS 22MF (5X11) TP D301 DBYV95C—- DIODE BYV95C (TAPPING) D302 D1N4003—- DIODE 1N4003 (TAPPING) D401 DBYV95C—-...
  • Page 117 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK R316 RD-2Z102J- R CARBON FILM 1/2 1K OHM J R402 RF01Y369J- R FUSIBLE 1W 3.6 OHM J R403 RF01Y479J- R FUSIBLE 1W 4.7 OHM J R405 RS02Y560JS R M-OXIDE FILM 2W 56 OHM J SMALL R406 RS01Y272J- R M-OXIDE FILM...
  • Page 118 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK CCY26 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CCY27 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 CCY28 HCQK390JCA C CHIP CERA 50V CH 39PF J 2012 CCY29 HCQK680JCA C CHIP CERA 50V CH 68PF J 2012 CCY30 HCBK103KCA...
  • Page 119 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK CY23 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP CY25 CEXF1E470V C ELECTRO 25V RSS 47MF (5X11) TP CY31 CEXF1C101A C ELECTRO 16V RSM 100MF (6.3X7) TP CY37 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP CY38 CEXF1H220V C ELECTRO...
  • Page 120 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK PY09 4859271521 CONN WAFER 00-8283-0611-00000 ANGLE QY01 TKTA1266Y- KTA1266Y QY02 TKSC945CY- KSC 945C-Y (TAPPING) QY03 TKTA1266Y- KTA1266Y QY04 TKTA1266Y- KTA1266Y QY05 TKSC945CY- KSC 945C-Y (TAPPING) QY06 TKTA1266Y- KTA1266Y QY07 TKSC945CY- KSC 945C-Y (TAPPING) QY08 TKTA1266Y- KTA1266Y QY09 TKSC945CY-...
  • Page 121 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK RCY40 HRFT331JCA R CHIP 1/10 330 OHM J 2012 RCY41 HRFT102JCA R CHIP 1/10 1K OHM J 2012 RCY42 HRFT152JCA R CHIP 1/10 1.5K OHM J 2012 RCY43 HRFT222JCA R CHIP 1/10 2.2K OHM J 2012 RCY44 HRFT102JCA R CHIP...
  • Page 122 PCB CONTROL LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK A001 4859827814 PCB CONTROL T1.6X280X68.6 CQ01 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP CQ03 CEXF1H229V C ELECTRO 50V RSS 2.2MF (5X11) TP CQ04 CCZF1E103Z C CERA 25V F 0.01MF Z (AXIAL) CQ05 CEXF1C221V C ELECTRO 16V RSS 220MF (8X11.5) TP...
  • Page 123 PCB MAIN LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK A001 4859808391 PCB MAIN T1.6X330X240 C103 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP C104 CMXM2A472J C MYLAR 100V 4700PF J TP C105 CEXF1H228V C ELECTRO 50V RSS 0.22MF (5X11) TP C110 CEXF1E470V C ELECTRO 25V RSS 47MF (5X11) TP C111...
  • Page 124 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK C706 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z (AXIAL) C707 CEXF1H478V C ELECTRO 50V RSS 0.47MF (5X11) TP C708 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP C709 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP C710 CEXF1H100V C ELECTRO...
  • Page 125 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK CC107 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CC108 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CC109 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CC112 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CC114 HCBK103KCA...
  • Page 126 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK CC715 HCQK220JCA C CHIP CERA 50V CH 22PF J 2012 CC716 HCQK180JCA C CHIP CERA 50V CH 18PF J 2012 CC717 HCQK180JCA C CHIP CERA 50V CH 18PF J 2012 CC718 HCQK220JCA C CHIP CERA 50V CH 22PF J 2012 CC719 HCQK561JCA...
  • Page 127 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK CCU14 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 CCU15 HCBK153KCA C CHIP CERA 50V X7R 0.015MF K 2012 CCU19 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CCU31 HCBK122KCA C CHIP CERA 50V X7R 1200PF K 2012 CN04 CCZB1H102K...
  • Page 128 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK CU29 CEXF1H479V C ELECTRO 50V RSS 4.7MF (5X11) TP CU30 CCZF1E103Z C CERA 25V F 0.01MF Z (AXIAL) D102 DUZ5R1BM— DIODE ZENER UZ-5.1BM D103 DUZ5R6BM— DIODE ZENER UZ-5.6BM(TAPPING) D104 DUZ5R6BM— DIODE ZENER UZ-5.6BM(TAPPING) D105 DUZ5R6BM— DIODE ZENER UZ-5.6BM(TAPPING) D106...
  • Page 129 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK DN06 D1N4003—- DIODE 1N4003 (TAPPING) DN07 D1N4003—- DIODE 1N4003 (TAPPING) DN13 DUZ6R2BM— DIODE ZENER UZ-6.2BM 6.2V DN15 D1N4148—- DIODE 1N4148 (TAPPING) DN17 DS15312H— LED IR SI5312-H DN18 DIN4148–– DIODE IN4148 TVZ1341 DN19 DIN4148–– DIODE IN4148 TVZ1341 DN20 DIN4148––...
  • Page 130 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK L105 5CPZ101K04 COIL PEAKING 100UH K (AXIAL 10.5MM) L106 58C5580019 COIL CHOKE TRF-9225 (0.55UH) L107 5CPZ150K02 COIL PEAKING 15UH K (AXIAL 3.5MM) L108 58B0000S81 COIL PIF TRF-4524 (STICK) L501 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING L502 5CPZ479K02 COIL PEAKING...
  • Page 131 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK Q102 TKSC945CY- KSC 945C-Y (TAPPING) Q103 TKTC3197— KTC 3197 Q104 TKSC945CY- KSC 945C-Y (TAPPING) Q105 TKSC945CY- KSC 945C-Y (TAPPING) Q106 TKSC945CY- KSC 945C-Y (TAPPING) Q502 TKTA1266Y- KTA1266Y Q503 TKSC945CY- KSC 945C-Y (TAPPING) Q504 TKSC945CY- KSC 945C-Y (TAPPING) Q505 TKSC945CY- KSC 945C-Y (TAPPING)
  • Page 132 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK R524 RD-4Z241J- R CARBON FILM 1/4 240 OHM J R525 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R528 RD-AZ683J- R CARBON FILM 1/6 68K OHM J R530 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R536 RD-AZ184J- R CARBON FILM...
  • Page 133 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK R812 RD-2Z124J- R CARBON FILM 1/2 120K OHM J R813 RD-4Z104J- R CARBON FILM 1/4 100K OHM J R814 RD-4Z680J- R CARBON FILM 1/4 68 OHM J R815 RD-4Z182J- R CARBON FILM 1/4 1.8K OHM J R816 RD-4Z102J- R CARBON FILM...
  • Page 134 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK RC142 HRFT102JCA R CHIP 1/10 1K OHM J 2012 RC143 HRFT272JCA R CHIP 1/10 2.7K OHM J 2012 RC144 HRFT124JCA R CHIP 1/10 120K OHM J 2012 RC145 HRFT623JCA R CHIP 1/10 62K OHM J 2012 RC501 HRFT682JCA R CHIP...
  • Page 135 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK RC564 HRFT122JCA R CHIP 1/10 1.2K OHM J 2012 RC565 HRFT273JCA R CHIP 1/10 27K OHM J 2012 RC566 HRFT561JCA R CHIP 1/10 560 OHM J 2012 RC567 HRFT114JCA R CHIP 1/10 110K OHM J 2012 TVZ1321Only RC571 HRFT513JCA...
  • Page 136 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK RC769 HRFT101JCA R CHIP 1/10 100 OHM J 2012 RC770 HRFT103JCA R CHIP 1/10 10K OHM J 2012 RC817 HRFT103JCA R CHIP 1/10 10K OHM J 2012 RCJ01 HRFT000-CA R CHIP 1/10 0 OHM 2012 RCJ02 HRFT000-CA R CHIP...
  • Page 137 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK RCN44 HRFT472JCA R CHIP 1/10 4.7K OHM J 2012 RCN47 HRFT473JCA R CHIP 1/10 47K OHM J 2012 RCN49 HRFT472JCA R CHIP 1/10 4.7K OHM J 2012 RCN51 HRFT472JCA R CHIP 1/10 4.7K OHM J 2012 RCN56 HRFT274JCA R CHIP...
  • Page 138 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK RLY1 5SC0101328 SW RELAY SDT-SS-112DM RN05 RD-AZ391J- R CARBON FILM 1/6 390 OHM J RN10 RD-AZ102J- R CARBON FILM 1/6 1K OHM J RN16 RD-AZ472J- R CARBON FILM 1/6 4.7K OHM J RN17 RD-AZ102J- R CARBON FILM 1/6 1K OHM J RN19 RD-AZ392J-...
  • Page 139 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK RN94 RD-AZ472J- R CARBON FILM 1/6 4.7K OHM J RN95 RD-AZ472J- R CARBON FILM 1/6 4.7K OHM J RN96 RD-AZ472J- R CARBON FILM 1/6 4.7K OHM J RN97 RD-AZ472J- R CARBON FILM 1/6 4.7K OHM J RN98 RD-AZ472J- R CARBON FILM...
  • Page 146 EXPLODED VIEW AND SERVICE PARTS LIST 1-1. EXPLODED VIEW OF DECK ASS’Y (TOP VIEW)
  • Page 147 1-2. EXPLODED VIEW OF DECK ASS’Y (BOTTOM VIEW)
  • Page 148 1-3. EXPLODED VIEW OF F/L ASS’Y...
  • Page 149 1-4. SERVICE PARTS LIST OF DECK ASS’Y DESCRIPTION REMARK MODEL 4851923800 DECK AS K-MECHA 2HD TVZ-1321 4851927200 DECK AS K-MECHA 4HD TVZ-1341/1341X AD001 97PA255101 DRUM PRICE ASS Y (2HD SP/EP NON DLC MONO) TVZ-1321 AD001 97PA251801 DRUM PRICE ASS Y (4HD NON DLC MONO) TVZ-1341/1341X AF001...
  • Page 150 ENGINEER NOTE...
  • Page 151 DAEWOO ELECTRONICS CO., LTD. 686, AHYEON-DONG, MAPO-GU, SEOUL, KOREA. C.P.O. BOX 8003 SEOUL KOREA TELEX : DWELEC K28177-8 F A X : (02) 364-5588,5305 T E L : (02) 360-7360 4, 7315 7 S/M NO : CN140N-020 PRINTED DATE: APR. 1997...

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