Daewoo DV-F24S Service Manual
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Daewoo DV-F24S Service Manual

Daewoo DV-F24S Service Manual

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Service Manual
MODEL: DV-F24S/F44S
EJECT
MARCHE
EJECT
MARCHE
MARCHE
EJECT
 Caution
: In this Manual, some parts can be changed for improving, their
performance without notice in the parts list. So, if you need the
latest parts information,please refer to PPL(Parts Price List) in
Service Information Center (http://svc.dwe.co.kr).
DAEWOO ELECTRONICS CO., LTD.
DV-F26S/F46S
DV-F28S/F48S
PAL/MESECAM/SECAM
•
ENR./IMM.
CAN/ALIGN
ENR./IMM.
CAN/ALIGN
+ CHAINE –
ENR.
LECTURE
R.R.
AV.R.
STOP
LECTURE
STOP
R.R.
AV.R.
•
STOP
LECTURE
R.R.
AV.R.

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  • Page 1 : In this Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information,please refer to PPL(Parts Price List) in Service Information Center (http://svc.dwe.co.kr). DAEWOO ELECTRONICS CO., LTD.

  • Page 2: Specifications

    SPECIFICATIONS GENERAL AUDIO Power requirement : AC 230V, 50Hz Recording system : Longitudinal track Power consumption : Typical 18W (in REC mode) Input : –8 dBs, (CENELEC standard), Temperature : 5°C~35°C (Operating) more than 47 k-ohms, –20°C~60°C unbalanced (Storage temperature) Output : –6 dBs, (CENELEC standard), Operating position...
  • 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 verify compliance with safety standards.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS SECTION 1. CONTROLS AND FUNCTIONS ......................3 SECTION 2. ELECTRICAL ADJUSTMENTS 2-1. VIDEO CIRCUIT ADJUSTMENT METHODS........................5 2-2. AUDIO CIRCUIT ADJUSTMENT METHOD........................7 2-3. IF MODULE CIRCUIT ADJUSTMENT METHODS......................8 SECTION 3. CIRCUIT OPERATION PRINCIPLES 3-1. POWER CIRCUIT................................12 3-2. VIDEO CIRCUIT ................................14 3-3.

  • Page 5: Section 1. Controls And Functions

    CONTROLS AND FUNCTIONS SECTION 1. FRONT 1. F24S/F44S SERIES * ^ ( LECTURE R.R. AV.R. EJECT MARCHE STOP • ENR./IMM. CAN/ALIGN #$ % & 2. F26S/F46S SERIES & ^ LECTURE STOP EJECT ENR./IMM. MARCHE CAN/ALIGN R.R. AV.R. • 3. F28S/F48S SERIES &^ MARCHE EJECT...
  • Page 6 REAR CH.H AUX/POUR TV CH.L SORTIE ANTENNE ENTREE TEST ANTENNE DECODEUR ! POWER ON/OFF ( FAST FORWARD/CUE @ EJECT ) AUX/POUR TV JACK # CHANNEL SELECTION 1 DECODER JACK ¡ $ CHANNEL SELECTION ¡ 2 RF OUTPUT CHANNEL ADJUSTMENT SCREW % RECORD AND OTR (ONE TOUCH TIMER RECORDING) 3 TEST SIGNAL ON/OFF SWITCH ^ PLAY...

  • Page 7: Section 2. Electrical Adjustments

    ELECTRICAL ADJUSTMENTS SECTION 2. 2-1. VIDEO CIRCUIT ADJUSTMENTS METHODS 1. REC EQ ADJUSTMENT Adj. Location Checking Point Measuring Equipment Mode INPUT SIGNAL SECAM MAGENTA RL491 TJ401 Signal Gen, Oscilloscope STOP signal • Connection Method VIDEO PCB VIDEO SET TJ401 TJ313 RL491 SECAM MAGENTA Signal...
  • Page 8 2. PB EQ ADJUSTMENT Adj. Location Checking Point Measuring Equipment Mode Test Tape R492 TJ402 Signal Gen, Oscilloscope PLAY DS-1 • Connection Method VIDEO PCB TJ402 TJ313 RL492 CH-1 OSCILLOSCOPE CH-2 ICL01 TOP VIEW • Adjustment Procedure 1) Set the INPUT mode to LINE mode. 2) Playback the SECAM test tape (DS-1).

  • Page 9: Audio Circuit Adjustment Method

    2-2. AUDIO CIRCUIT ADJUSTMENT METHOD 1. AUDIO RECORD BIAS Adjustment Parts Checking Point Measuring Equipment MODE INPUT SIGNAL A/C Head PCB R292 Audio level meter No signal TP1(+), TP2(-) • Connection Method MAIN PCB Audio LEVEL METER R292 – 3.0mVrms A/C HEAD (–) TOP VIEW...

  • Page 10: If Module Circuit Adjustment Methods

    2-3. IF MODULE CIRCUIT ADJUSTMENT METHODS 1. PAL/SECAM-L HIGH BAND AFT ADJUSTMENT PARTS CHECK POINT TEST EQUIPMENT INPUT SIGNAL P102 Signal Gen. Refer to L102 PIN! Oscilloscope Power Supply following. • PAL/SECAM HIGH BAND AFT IF MODULE PCB (TOP VIEW) Z102 Q110 Q106...
  • Page 11 2. PHASE ADJUSTMENT PARTS CHECK POINT TEST EQUIPMENT INPUT SIGNAL P102 Signal Gen. Refer to R192 PIN$ Oscilloscope Power Supply following. • PHASE IF MODULE PCB (TOP VIEW) Z102 Q110 Q106 IC102 R192 MINIMUM RIPPLE IC101 R191 Z101 0.5 mS/DV 50 mV/DIV (10:1) R193 L102...
  • Page 12 3. SECAM-L ACCENT AFT ADJUSTMENT PARTS CHECK POINT TEST EQUIPMENT INPUT SIGNAL P102 Signal Gen. Refer to R193 PIN! Oscilloscope Power Supply following. • SECAM-L ACCENT AFT IF MODULE PCB (TOP VIEW) Z102 Q110 Q106 IC102 R192 IC1O1 R191 Z101 0.5 mS/DV 50 mV/DIV (10:1) R193...
  • Page 13 4. RF AGC ADJUSTMENT PARTS CHECK POINT TEST EQUIPMENT INPUT SIGNAL "A" POINT Signal Gen. Refer to R191 Oscilloscope Power Supply following. • RF AGC IF MODULE PCB (TOP VIEW) Z102 Q110 Q106 6.0V ± 0.2V DV IC102 R192 R191 Z101 R193 L102 Q102...

  • Page 14: Section 3. Circuit Operation Principles

    CIRCUIT OPERATION PRINCIPLES SECTION 3. 3-1. POWER CIRCUIT 1. Basic Operation The input voltage is rectified by the bridge diode (D801) and the capacitor (C807), ie, it is converted from AC to DC. This voltage drives the gate of the FET (Q801) via the 'motive stage' (gate drive circuit) when the gate drive voltage exceeds Vgs(th), it makes the FET turn on.
  • Page 15 (i) Evaluation of resistance R = 0.5 (Idp) F=Vc R=2Vc /(0.025Lp (Idp) (on average, the experimental value of Li=0.025 Lp is found) (ii) Evaluation of capacitance (Idp) /2=C (1.2Vdc-Vdc) C=25Lp (Idp) (Vdc) (iii) Power consumption in resistance Pr=Li (Idp) Idp=peak value of drain current 1.2 Vdc=voltage of surge absorption capacitor Vdc=voltage input to snubber F=minimum oscillation frequency...

  • Page 16: Video Circuit

    3-2. Video Circuit (The operating principles of the video circuit) 1. The signal flow A. Signal flow of the luminance system in the REC mode. To OSD Video input Video Video QV/QH buffer buffer CLAMP Sub- emphasis IH DELAY CCD IC302 fsc : 4.433619MHz MAIN...
  • Page 17 B. Signal flow of the PAL colour in the record mode (5.06±4.43) Video input 4.43MHz 4.43MHz Video MAIN IMHz CONV 5.06MHz 627KHz Killer To. PREAMP 2Head: Pin & of LA7411 4Head: Pin ) of LA7416 BLOCK 2. PAL COLOUR SIGNAL FLOW A recording composite video signal is fed to the AGC circuit from Pin 12 of IC301, and its output signal is passed through a BPF (Band Pass Filter) to eliminate the luminance components, and then only the colour signal is fed to the ACC (Auto Colour Controller) amplifier.
  • Page 18 Y-FM input Double Main L P F Limiter Demod De-empha Sub-deempha L P F & buffer Double HP Picture Y N R De-empha Noise Can Controller Video QV/QH IH Delay IC302 R323 TO OSD CIRCUIT R322 Q309 Buffer BLOCK 3. PLAYBACK LUMINANCE SIGNAL FLOW This signal from Pin 4 of IC301 is then passed through a sub-deemphasis and Buffer and fed to Pin 5 of IC301.
  • Page 19 The signal from the PREAMP circuit is fed to Pin 38 of IC301 and then this signal is amplified by 60dB (almost 1000 times). The signal from Pin 38 of IC301 is filtered by the LPF. That is, the LPF is used to eliminate the luminance signal. The down- converted colour signal (627KHz) from the LPF is fed to the Main Converter through the ACC amplifier circuit.
  • Page 20 F. Signal flow of the SECAM colour in the playback mode 1.1MHz 1.1MHz PB Colour from PREAMP 2.2MHz Limiter 4.286MHz Trap 4.3MHz 12dB Limiter SYNC GATE 4.3MHz BPF ICL02 BELL SECAM DETECTOR 2.1MHz Trap SECAM(H) SECAM:HIGH non-SECAM: LOW To. pin E of IC301 PB SECAM BLOCK 6.

  • Page 21: If Circuit Operation

    3-3. IF CIRCUIT OPERATION 1. VIDEO SIGNAL FLOW VIDEO PRE- VIDEO SOUND MIXER BUFFER DET & FILTER TRAP DE MOD TUNER LOCAL µ-COM STANDARD S/W The signal from the ANT is amplified for selectivity, to decrease image interference, and to increase S/N using the RF AMP. The RF signal at the MIXER is subtracted from the LOCAL OSC frequency using the upperside band method, to change it into the IF signal;...
  • Page 22 2. PAL AUDIO FLOW intercarrier VIDEO DET SOUND LIMITER FM PLL- AUDIO OUT & DEMOD DEMOD VIDEO BLOCK The FM sound intercarrier signal passing through the 5.5MHz sound BPF is fed to a limiter amplifier before it is demodulated. This gives high sensitivity and AM suppression. The limiter amplifier consists of seven internal AC-coupled stages, minimizing the DC offset.

  • Page 23: Section 4. Trouble Shooting Flow Chart

    TROUBLE SHOOTING FLOW CHART SECTION 4. 4-1. POWER CIRCUIT • When changing the parts which are out of order, first, remove the power plug from the socket and then disharge the voltage across the terminals of C807. (Use an external KΩ resistance). •...
  • Page 24 B. CHECKING THE SECONDARY CIRCUIT. Check D801, L801 IS D814 Shorted? Check each voltage. Check Transformer for No output stage. Check each DIODE for No output stage. Check each COIL, C for No output stage. Check the environmental terminals of IC801, 802...

  • Page 25: Pif Circuit Trouble Shooting

    4-2. PIF CIRCUIT TROUBLE SHOOTING RF output signal N.G Is video signal output Is audio signal output from P102 $ pin? from P102 & pin? A/V sw module Check QL03 Is video signal input P153 & pin? into P101 ! pin? RL17, RL18 Check A/V sw circuit...

  • Page 26: Logic Circuit

    4-3. LOGIC CIRCUIT Digitron does not operate. Is the pin ^ of Is +5V supplied to Is +5.8V supplied Check power pin * of IC701? from D713's cathode? P605 at +6V? Ass'y. Is the pin $ of Is –28V supplied to pin 1 of IC701? P605 at –28V? Check the connector...
  • Page 27 Digitron is lit and keys do not operate. Is each key pulse Check key matrix applied to pin @, #, 2 circuit. and 3 of IC701? Check the pin serial of pin ), u, I, i of IC701...

  • Page 28: Servo-Syscon Circuit

    4-4. SERVO-SYSCON CIRCUIT Playback picture is not good Noise appears although Adjust tracking. adjusting tracking. Noise appears Check and re-adjust Noise shakes up and although cassette the path of Deck. down on the screen? tape is changed. CTL HEAD height Adjust the HEAD Is CTL pulse output is normal and...
  • Page 29 Playback picture is not good. Noise appears on the Noise appears on the Check flow A. screen at the bottom whole screen. Connect the pin of IC601 to GND for a few seconds. Is sw pulse supplied Check D. PG input Are SW-pulse and HA-SW from pin 9 of IC601? and connector.
  • Page 30 Auto-stop during playback. Is reel pulse applied to Check reel sensor. pin $ and % of IC601? Check connector and Is D. FG applied to pin > of IC601. D. FG circuits. Check IC601.
  • Page 31 Drum M/T loading stops Check IC607 and circuit. Is motor 12V supplied? Check power ASS'Y. Is pin > D. FG of Check C519, C520, R521 IC601 supplied? and R522. Is pin D. PWM of Check IC601. IC601 supplied? Check connector and motor.
  • Page 32 Capstan M/T loading stops. Check power ASS'Y. Is motor 14V supplied? Is the input of pin ! of Check circuit of R527, P601 2.5V ~ 3.5V? R528, R529 and C524. Is pin 8 of P602 2.5V? Check R519, R520. Does pin of IC601 Check IC601.
  • Page 33 Drum M/T and capstan M/T rotate at regular speed. (IN REC MODE) Is C. sync applied to Check C. sync of video of IC601? IC and pattern. Check motor. Emergency mode when plugged-in (power cord) Is ever 5V applied? Check power ASS'Y. Does X601 crystal Check IC601 and X601.
  • Page 34 Cassette can not be inserted. Is motor 14V supplied? Check power ASS'Y. (at pin * of P605) Does CAM DATA change Check connector. after CST IN? Check Deck part. Is 5V applied to pin $ of Is 5V supplied at pin 111 of IC601? IC602 when CST IN? Check pattern...
  • Page 35 Power compensation does not operate. When mains is unplugged, is 3.6V at pin !, Y, and m Check C612. of IC601? (sine) signal applied Check X602. to pin S and s of IC601? Is 5V at pin [ of IC601? Check reset circuit IC604.

  • Page 36: Audio Circuit

    4-5. AUDIO CIRCUIT No sound in the playback mode. Is the output at Is 9V applied? Check Q604 pin ‘ of IC201? to pin & of IC201? of power circuit Is 5V applied to pin 1 of IC201? Check IC601. Is pin 7 of IC201 at 0V? Is there an Audio output at pin ) of IC201?
  • Page 37 No sound the playback mode after recording. Check A/V Is the signal applied to pin 6 of IC201? circuits. Is 5V applied Check IC601. to pin = of IC201? Is there output at Check IC201. pin “ of IC201? In the RECORD mode, Does T201 oscillate? Check IC601.

  • Page 38: Video Circuit

    4-6. VIDEO CIRCUIT A. Troubleshooting of EE mode. Is the signal obtained from pin ‘ Check A/V circuit of ICL01 (A/V circuit)? Is the video signal from pin ‘ Check C316 fed to pin 2 of IC301? Is ON/OFF 5V supplied to pin 3 Check ON/OFF 5V and pin t of IC301 at 5 volts? Is EE(L) supplied to anode of...
  • Page 39 B. Troubleshooting of 4 head preamp in the playback mode. * ICA01:LA7416 Is the signal from heads fed to pin ! Check drum and and pin # (LP mode) or pin % and deck mechanism pin & (SP mode) of PA03? Is ON/OFF 5V from pin ) of PA01 supplied to pin 5 of Check ON/OFF 5V...
  • Page 40 C. Troubleshooting of 2 head preamp in the playback mode. * ICA01 : LA7411 Is the signal from heads fed to Check Drum and pin ! and pin # of PA03? DECK mechanism Is ON/OFF 5V supplied to pin 2 Check ON/OFF 5V and pin 5 ICA01 at 5 volts? Is REC (H) supplied to pin $ of...
  • Page 41 D. Troubleshooting of 4 head preamp circuit in the record mode. * ICA01 : LA7416 Is the signal from pin $ of P302 Check P501, P505 fed to pin & of PA02? and PCB pattern Is the modulating luminance signal from pin & of PA02 Check CA19 and pattern fed to pin 1 of ICA01? Is the down-converted colour...
  • Page 42 E. Troubleshooting of 2 head preamp in the record mode. * ICA01 : LA7411 Is Y-FM signal from pin & of PA02 Check CA19 and pattern fed to pin * of ICA01? Is the down-converted colour signal from pin ( of PA02 fed Check pattern to pin &...
  • Page 43 F. Troubleshooting of luminance signal in the record mode. Is the video signal obtained Check AV circuit from pin ‘ of ICL01 (AV circuit)? Is the video signal from pin ‘ Check C316 and pattern fed to pin 2 of IC301? Is ON/OFF 5V supplied to pin 3 Check ON/OFF 5V and pin t of IC301 at 5 volts?
  • Page 44 G. Troubleshooting of PAL COLOUR in the record mode. Is the video signal obtained from Check AV circuit pin ‘ of ICL01 (A/V circuit)? Is the video signal from pin ‘ of Check C316 and pattern ICL01 fed to pin 2 of IC301? Is ON/OFF 5V supplied to pin 3 Check ON/OFF 5V and pin t of IC301 at 5 volts?
  • Page 45 H. Troubleshooting of SECAM colour in the record mode. Is video signal obtained from pin ! Check A/V circuit of ICL01 through pin ) of P303? Is ON/OFF 5V from pin * of P303 supplied to pin ‘ and pin + Check ON/OFF 5V of ICL01 at 5 volts? Is EE (H) from pin &...
  • Page 46 I. Troubleshooting of luminance in the playback mode. Is Y-FM signal from PREAMP Check PREAMP circuit fed to pin @ of P302? Is ON/OFF 5V supplied to pin 3 Check ON/OFF 5V and pin t of IC301 at 5 volts? Is EE (L) supplied to anode of Check EE (L) D302 at 5 volts?
  • Page 47 J. Troubleshooting of PAL colour in the Playback mode. Is the signal from PREAMP circuit Check PREAMP circuit fed to pin ^ of P302? Is the PAL colour signal from pin ^ of P302 fed to pin u of Check AMP circuit IC301 through AMP circuit? * The AMP circuit consists of Q313, R347, R346, R348...
  • Page 48 K. Troubleshooting of SECAM colour in the playback mode. Is signal from PREAMP circuit Check PREAMP circuit fed to pin ^ of P302? Is signal from pin ^ of P302 Check PB AMP and fed to pin 8 of ICL01 through 1.1MHz BPF PB AMP and 1.1 MHz BPF? Is ON/OFF 5V from pin * of P303...

  • Page 49: Section 5. Waveforms Of The Video Circuit

    WAVEFORMS OF THE VIDEO CIRCUIT SECTION 5. 5-1. WAVEFORMS IN THE EE MODE (Color bar input) ! Pin 12 of IC301 @ Pin 12 of IC301 # Pin 16 of IC301 $ Pin 16 of IC301 (SECAM color bar input: (PAL color bar input: (SECAM color bar (PAL color bar output:...
  • Page 50 5-3. WAVEFORMS OF THE PAL COLOR IN THE RECORD MODE (Color bar input) 7 Pin 12 of IC301 8 Pin 23 and 24 of IC301 9 Pin 26 of IC301 (PAL color input: (450mVp-p) (400mVp-p) 1.0Vp-p) “ Pin 38 of IC301 ‘...
  • Page 51 5-5. WAVEFORMS OF THE LUMINANCE IN THE PB MODE (DP-1 test tape) E UP: Pin 17 of IC301 e Pin 4 of IC301 (0.5Vp-p) R Pin 5 of IC301 (0.5Vp-p) (color rotary) DOWN: Pin 1 of IC301 (ENVE: 0.8Vp-P) T Pin 18 of IC301 t Pin 20 of IC301 r Pin 16 of IC301 (300mVp-p)
  • Page 52 5-7. WAVEFORM OF THE SECAM COLOR IN THE PB MODE (DS-1 test tape) O UP: Pin 17 of IC301 o Pin 6 of ICL01 P Pin 8 of ICL01 (300mVp-p) (Color rotary) (170mVp-p) DOWN: Pin 6 of P302 (PB color ENVE): 100mVpp { UP: Pin 14 of IC301 [ UP: Pin 14 of IC301...

  • Page 53: Section 6. Μ-Com Port Description

    µ-COM PORT DESCRIPTION SECTION 6. NAME PORT IN/OUT ASSIGNMENT ACTION • Normal operating mode: 5V±10% • Low speed mode: 2.7V min-5.5V max REMOCON P87/GEN 1 INPUT REMOCON DATA INPUT PORT PULSE P86/GEN 0 S/REEL P85/INT 1 INPUT SUPPLY REEL PULSE INPUT PULSE T/REEL P84/INT 0...
  • Page 54 NAME PORT IN/OUT ASSIGNMENT ACTION N.C. P65/RTP13 When LP-CUE/REV/STILL/SLOW mode, PULSE LP TRICK P64/RTP13 OUTPUT ** STILL/SLOW: HIGH /HIGH H. A SW ** PB: LOW ** CUE/REV: PULSE P63/RTP11 P62/RTP10 P61/RTP9 P60/RTP8 P57/RTP7 P56/RTP6 P55/RTP5 To select RF output mode HIGH PAL/SECAM P54/RTP4...
  • Page 55 NAME PORT IN/OUT ASSIGNMENT ACTION RESET RESET INPUT INPUT MAIN CLOCK: 16MHz OSC IN Xout Xout OUTPUT MAIN CLOCK: 16MHz OSC OUT When RESET mode, to select clock. CLK/SEL CLK/SEL INPUT ** LOW: Xcin (32.768KHz) ** HIGH: Xin (16MHz) Xcin Xcin INPUT OSC2 IN: 32.768KHz OSC IN...
  • Page 56 NAME PORT IN/OUT ASSIGNMENT ACTION VFD DATA OUT P137/TXD1 OUTPUT VFD SERIAL DATA OUTPUT SERIAL VFD DATA IN P136/RXD1 INPUT VFD SERIAL DATA INPUT SERIAL VFD CLK P135/CLK1 OUTPUT VFD SERIAL CLOCK OUTPUT SERIAL VFD STB P134/CTS1/RTS1 OUTPUT VFD STROBE OUTPUT OSD DATA OUT P133/TXDO OUTPUT...
  • Page 57 NAME PORT IN/OUT ASSIGNMENT ACTION AMP Vss AMP Vss AMP GND ANG Vcc AVcc ANALOG Vcc Vref VREF VREF=2.5V A GND ANALOG GND CAM A P117 INPUT CAM DATA TABLE D CAM NAME CAM SUMBER EJECT CAM 0 CAM B P116 INPUT HI-REW...
  • Page 58 NAME PORT IN/OUT ASSIGNMENT ACTION DRUM SEL. P104/AN4 INPUT To detect the kinds of HEADS to be used. HEAD A/D VALUE TABLE (HEAD WIDTH) TYP. 4.6875 NT4-B 40 58 30 32 4.375 4.0625 NT4-A 48 58 26 26 3.75 3.4375 PAL4-B 49 49 25 25 SECAM 20 20 11.5...

  • Page 73: Section 8. Components Location Guide On Pcb (Bottom View)

    COMPONENTS LOCATION GUIDE ON PCB (BOTTOM VIEW) SECTION 8. 8-1. PCB MAIN...

  • Page 74: Pcb Power

    8-2. PCB POWER 8-3. PCB PRE AMP (4HEAD) 8-4. PCB PRE AMP (2HEAD)

  • Page 75: Pcb Video

    8-5. PCB VIDEO 8-6. PCB IF MODULE 8-7. PCB AV & SCART...

  • Page 76: Pcb Logic

    8-8. PCB LOGIC 1) DV-F24S/F44S 2) DV-F26S/F46S...
  • Page 77 3) DV-F28S/F48S...

  • Page 78: Packing Ass'y

    DISASSEMBLY SECTION 9. 9-1. PACKING ASS'Y & Part Name Part No. Q'ty Description Remark PAD RIGHT/LEFT 97P4919600 POLY BAG FOR SET 97P4803100 P.E FOAM SET TOTAL ASS'Y BOX CARTON 97P5039900 EX300XSCP150XEX300 CABLE CONNECTOR 97P8804213 HP-505 (SECAM-TYPE) BATTERY 47P7500001 AAM 1.5V COVER ACCESSORY 97P0424100 LD-PE T0.1...

  • Page 79: Front Panel Assembly

    9-2-1. FRONT PANEL ASSEMBLY (F24S/F44S) & Part Name Part No. Q'ty Description Remark WINDOW FRONT 97P1612700 PMMA PANEL FRONT 97P0311000 Hi-PS (HB) DOOR F/L 97P1815000 SPRING F/L DOOR 97P3040000 SWPB KNOB P/EJECT 97P1336400 HOLDER K/F 97P2333500 KNOB FUNCTION 97P1336700 KNOB CH/REC 97P1336600...
  • Page 80 9-2-2. FRONT PANEL ASSEMBLY (F26S/F46S) & Part Name Part No. Q'ty Description Remark PANEL FRONT 97P0311600 HI-PS (HB) WINDOW FRONT 97P1613500 PMMA SPRING F/L DOOR 97P3040000 SWPB DOOR F/L 97P1815500 KNOB P/EJECT 97P1336800 KNOB CHANNEL 97P1337200 KNOB REC/FUNCTION 97P1337000 KNOB PLAY/STOP 97P1336900 HOLDER KNOB 97P2333600...
  • Page 81 9-2-3. FRONT PANEL ASSEMBLY (F28S/F48S) & Part Name Part No. Q'ty Description Remark PANEL FRONT 97P0312700 HI-PS ( HB) WINDOW FRONT 97P1614700 PMMA DOOR F/L 97P1816500 SPRING F/L DOOR 97P3040000 SWPB KNOB P/E 97P1341300 KNOB P/S 97P1341900 KNOB FF/REW 97P1341400 KNOB CH/REC 97P1341500 HOLDER K/F...

  • Page 82: Set Total Assembly

    9-3. SET TOTAL ASSEMBLY “ ‘ Part Name Part No. Q'ty Description Remark CHASSIS MAIN 97P0608800 HIPS (HB) 54S PANEL FRONT AS PCB LOGIC AS PCB MAIN AS DECK TOTAL AS COVER TOP 97P0460800 SECC T0.6+PVC T0.15 COVER BOTTOM 97P0460900 SECC T0.4 BRKT F/L 97P2440200...

  • Page 83: Instrument Disassembly

    9-4. INSTRUMENT DISASSEMBLY 1. Top Cover Removal (Fig. 1) 1. Remove five (5) screws holding the top cover. 2. Carefully lift the back of the top cover and slide to the rear to remove. REMOVE TWO SCREWS REMOVE REMOVE SCREW TWO SCREWS (Fig.
  • Page 84 2. Front Panel Removal (Fig. 2) 1. Remove the top cover. 2. Remove two (2) screws securing front panel. 3. Remove the F/L bracket. 4. Release seven (7) tabs holding the front panel. 5. Remove the front panel. REMOVE TWO SCREWS RELEASE TWO TABS BRKT F/L...
  • Page 85 3. Bottom Cover Removal (Fig. 3) 1. Remove the top cover and front panel. 2. Remove three (3) screws. 3. Release four (4) tabs and lift out the bottom cover. REMOVE THREE SCREWS REMOVE TWO TABS REMOVE TWO TABS (Fig. 3)
  • Page 86 4. F/L Door Removal (Fig. 4) 1. Open the F/L door 90°. 2. Remove the F/L door in the direction of arrow. REMOVE F/L DOOR (Fig. 4)
  • Page 87 5. PCB Logic AS Removal (Fig. 5) 1. Remove the top cover, bottom cover and front panel. 2. Release four (4) tabs holding the PCB Logic AS. 3. Tilt PCB Logic AS forward to remove in the direction of arrow. RELEASE TWO TABS RELEASE...
  • Page 88 6. PCB VIDEO AS/PCB SMPS AS Removal (Fig. 6) 1. Remove the top cover, bottom cover and front panel. 2. Remove three (3) screws. 3. Remove the PCB SMPS AS in the direction of arrow. 4. Release four (4) tabs and lift out the BRKT PCB in the direction of arrow. 5.
  • Page 89 7. DECK AS/ PCB HEAD AMP AS Removal (Fig. 7) 1. Remove the top cover, bottom cover and front panel. 2. Remove five (5) screws. 3. Disconnect the connector and the FPC. 4. Pull out the PCB HEADAMP AS in the direction of arrow. 5.
  • Page 90 8. PCB MAIN AS Removal (Fig. 8) 1. Remove the top cover, bottom cover and front panel. 2. Remove two (2) screws. 3. Release two (2) tabs and lift out the main PCB in the direction of the arrow. REMOVE TWO SCREWS PCB MAIN ASS'Y RELEASE...

  • Page 91: Jig Pcb Connection Diagram

    9-5. JIG PCB CONNECTION DIAGRAM VIDEO PCB VIDEO JIG DECK...
  • Page 92 A/V SCART PCB A/V SCART GIG SMPS JIG N PCB POWER...

  • Page 93: Section 10. Electrical Part List

    ELECTRICAL PART LIST SECTION 10. Caution : In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr) 10-1.
  • Page 94 10-1-2. RESISTOR CODING 1. Normal Value Distance Type Distance (Same as Fixed (Same As (Same as Fixed Code Type Code Voltage Resistor) Fixed Resistor) Resistor) Aluminum 6.3V Barrier Layer Shape Ceramic Electrolytic Characteristic Line Across Mylar Styrol Metalized Polyester Mica 100V Tantal 125V...
  • Page 95 10-2-1. IF CIRCUIT LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC C101 CCXF1H103Z C CERA 50V F 0.01MF Z (TAPPING) IC102 1TDA9830-- IC RF TDA9830 C102 CCXF1H103Z C CERA 50V F 0.01MF Z (TAPPING) L101 5CPX689K-- COIL PEAKING 6.8UH 5MM K RADIAL C103...
  • Page 96 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC R119 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R129 RD-AZ470J- R CARBON FILM 1/6 47 OHM J R120 RD-AZ222J- R CARBON FILM 1/6 2.2K OHM J R191 RV5426203E R SEMI FIXED RH 0638C-20K OHM...
  • Page 97 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC RA12 RD-AZ222J- R CARBON FILM 1/6 2.2K OHM J RA19 RD-AZ391J- R CARBON FILM 1/6 390 OHM J RA13 RD-AZ391J- R CARBON FILM 1/6 390 OHM J RA20 RD-AZ621J- R CARBON FILM 1/6 620 OHM J...
  • Page 98 10-2-4 VIDEO CIRCUIT LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC CL401 CXSL1H101J C CERA 50V SL 100PF J C312 CXSL1H361J C CERA 50V SL 360PF J CL402 CEXE1H478A C ELECTRO 50V RS 0.47MF (5X11) TP C314 CEXE1H479A C ELECTRO...
  • Page 99 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC ICL02 1LA7356--- IC VIDEO LA7356 SECAM DET C352 CMXM2A473J C MYLAR 100V 0.047MF J (TAPPING) IC301 1LA7437--- IC VIDEO (PAL) LA7437 C353 CCXF1H103Z C CERA 50V F 0.01MF Z (TAPPING) IC302 1LC89970-- IC VIDEO...
  • Page 100 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC RL436 RD-AZ123J- R CARBON FILM 1/6 12K OHM J Q305 TZTC3198Y- KTC3198Y-(1815Y) (AUTO) RL437 RD-AZ333J- R CARBON FILM 1/6 33K OHM J Q306 TZTC3198Y- KTC3198Y-(1815Y) (AUTO) RL438 RD-AZ183J- R CARBON FILM 1/6 18K OHM J Q307...
  • Page 101 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC R338 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R354 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R339 RD-AZ202J- R CARBON FILM 1/6 2K OHM J R355 RD-AZ102J- R CARBON FILM 1/6 1K OHM J...
  • Page 102 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC QL11 TZSR1004-- KSR1004 (AUTO) RL13 RD-AZ103J- R CARBON FILM 1/6 10K OHM J RL01 RD-AZ750J- R CARBON FILM 1/6 75 OHM J RL14 RD-AZ103J- R CARBON FILM 1/6 10K OHM J RL02 RD-AZ750J- R CARBON FILM...
  • Page 103 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC Q801 T2SK1611-- 2SK1611 R814 RD-AZ562J- R CARBON FILM 1/6 5.6K OHM J Q802 T2SB1050Q- 2SB1050-Q R815 RW01Y568J- R WIRE WOUND 1W 0.56 OHM J Q803 T2SD1330T- 2SD1330-T R816 RD-AZ103J- R CARBON FILM 1/6 10K OHM J...
  • Page 104 10-2-8. OSD CIRCUIT REF. PART CODE PART NAME PART DESCRIPTION REF. PART CODE PART NAME PART DESCRIPTION CS01 CXSL1H240J C CERA 50V SL 24PF J ICS01 168K88E6ML IC OSD 168K88E6ML CS02 CXSL1H240J C CERA 50V SL 24PF J ICS02 1LVA519S-- LVA519S (SYNC.SEPARATOR) CS03 CEXE1H228A...
  • Page 105 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC IC103 1PQ12RF11- IC REGULATOR PQ12RF11 R155 RD-AZ303J- R CARBON FILM 1/6 30K OHM J L150 5CPX101J-- COIL PEAKING PL 100UH J (TAPPING) R156 RD-AZ103J- R CARBON FILM 1/6 10K OHM J L151 5CPX101J-- COIL PEAKING...
  • Page 106 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC C216 CEXE1H339A C ELECTRO 50V RS 3.3MF (5X11) TP R208 RD-AZ105J- R CARBON FILM 1/6 1M OHM J C217 CXSL1H104J C CERA 50V SL 1000PF J (TAPPING) R209 RD-AZ473J- R CARBON FILM 1/6 47K OHM J...
  • Page 107 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC C606 CEXF1E470V C ELECTRO 25V RSS 47MF (5X11) TP D510 DZN4148--- DIODE 1N4148 AUTO 52MM C607 CEXF1E470V C ELECTRO 25V RSS 47MF (5X11) TP D604 DZN4003--- DIODE IN4003 C608 CEXF1E470V C ELECTRO...
  • Page 108 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC Q603 TZTC3198Y- KTC3198Y-(1815Y) (AUTO) R531 RD-AZ273J- R CARBON FILM 1/6 27K OHM J Q604 TZTC3198Y- KTC3198Y-(1815Y) (AUTO) R532 RD-AZ201J- R CARBON FILM 1/6 200 OHM J Q605 TZTC3205Y- KTC3205Y (2236Y) R533 RD-AZ273J-...
  • Page 109 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC R635 RD-AZ201J- R CARBON FILM 1/6 200 OHM J R680 RD-AZ152J- R CARBON FILM 1/6 1.5K OHM J R641 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R681 RD-AZ222J- R CARBON FILM 1/6 2.2K OHM J...
  • Page 110 DAEWOO ELECTRONICS CO., LTD. 612-1, AHYEON-DONG, MAPO-GU, SEOUL, KOREA. C.P.O. BOX 8003 SEOUL KOREA TELEX: DWELEC K28177-8 CABLE:"DAEWOOELEC" FAX: (02) 364-5588 TEL: (02) 360-7381-7389 S/M NO.: S015GBA PRINTED DATE: APR. '96...

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