Daewoo DF-5500(S/P) Manuale utente

DVDR + VCR Combi

OCT. 2006

DF-5500(S/P)

DF-6500(S/P)

DFX-5502(S/P)

DFX-6502(S/P)

DFX6502001

SPECIFICATIONS...............................................................................................................2

TROUBLE SHOOTING....................................................................................................................3

WAVEFORMS ................................................................................................................................24

CIRCUIT DIAGRAM.......................................................................................................................27

PCB CIRCUIT BOARD..................................................................................................................43

INSTRUMENT DISASSEMBLY .....................................................................................................46

ELECTRICAL PARTSLIST............................................................................................................47

CONTENTS

DF-5500/DFX-5502 SVC 2006.10.14 10:6 AM ˘ ` 1 mac001 1200DPI 80LPI

SPECIFICATIONS

General

Power requirements 200–240V~, 50/60 Hz

Power consumption 26W

Dimensions (approx.) 430 x 92 x 312 mm (w x h x d)

Mass (approx.) 4.96 kg

Operating temperature 41°F to 95°F (5°C to 35°C)

Operating humidity 5% to 90%

Signal system PAL Colour

Recording

Recording formats DVD Video Recording, DVD-VIDEO

Recordable discs DVD+R, DVD+RW, DVD-R, DVD-RW

Recordable time [DVD] Approx. 1 hour (HQ mode), 2 hours (SP mode), 4 hours (EP mode), 8 hours (SEP mode)

[VCR] SP: 3 hours (E-180), LP: 6 hours (E-180)

Video recording format

Sampling frequency 27MHz

Compression format MPEG 2

Audio recording format

Sampling frequency 48kHz

Compression format MPEG1 Layer2

VCR Specifications

Head system 4 Head Video, 2 Head Hi-Fi helical scan azimuth system

Timer 24-hour display type

Tape speed SP: 23.39 mm/sec, LP: 11.70 mm/sec

Tape width 12.7 mm

Rewind time less than 150 seconds (E-180)

Antenna 75 ohms (VHF/UHF)

Channel coverage VHF: 2-12, 13-20, 74-80 / UHF: 21-69 / CATV: 1-41

Frequency range 20Hz to 20kHz

Video S/N Over 43 dB (Standard recording)

Audio S/N Over 65 dB (Hi-Fi), Over 40 dB (Mono)

Resolution Over 240 lines (Standard recording)

DVD Specifications

Laser system Semiconductor laser, wavelength 650 nm

Frequency response DVD (PCM 48 kHz): 8 Hz to 22 kHz, CD: 8 Hz to 20 kHz

Video S/N More than 60 dB

Audio S/N More than 90 dB

Dynamic range More than 90 dB

Resolution Over 500 lines (HQ Recording)

Inputs/RF Output

RF In Antenna or CATV input 75 Ω

Video In 1.0 Vp-p, unbalanced

Audio In -8.8 dBm

DV In 4 pin (i.LINK/IEEE 1394 standard)

RF Output CH. 52(Australlia;CH.36)

DF-5500/DFX-5502 SVC 2006.10.14 10:6 AM ˘ ` 2 mac001 1200DPI 80LPI

TROUBLESHOOTING

1. No output voltage of POWER CIRCUIT

get input, DC 200~240 Valtage

1. POWER CIRCUIT

DF-5500/DFX-5502 SVC 2006.10.14 10:6 AM ˘ ` 3 mac001 1200DPI 80LPI

TROUBLESHOOTING

2. SYSTEM CIRCUIT

DF-5500/DFX-5502 SVC 2006.10.14 10:6 AM ˘ ` 4 mac001 1200DPI 80LPI

TROUBLESHOOTING

P303

Check REMOCON_IN

(Pin2)

DF-5500/DFX-5502 SVC 2006.10.14 10:6 AM ˘ ` 5 mac001 1200DPI 80LPI

TROUBLESHOOTING

B. Digital Board(Mpeg)

DF-5500/DFX-5502 SVC 2006.10.14 10:6 AM ˘ ` 6 mac001 1200DPI 80LPI

TROUBLESHOOTING

Noise appears on the

playback screen.

Is noise diminished by tracking

adjustment.

Noise band is trembled up and

down?

Re-adjust PATH.

IstheheightofCTLHEAD normal?

Nodust?

Is there problem in CTL Input circuit

and amplifier.

YES

Is there CTL pulse at IC501

pin#97?

Check IC501.

Noise appears on the screen even

though changing tape.

Re-adjust the height of AC HEAD.

Remove the dust.

Check C510,R545~R547

IC 501 pin #94, 95, 97.

Re-adjust PATH.

C-1. Bad playback quality (1)

YES

Noise appears on the Full

playback screen.

Are SW pulse and HA SW normal?

Recheck step B-1

(Bad playback quallty (1)).

CheckHEADAMPconnector

andHEAD.

YES

ENVE Wave at P502 pin #4?

CheckVIDEOcircuit.

Are there SW, HA SW pulse at

IC501 pin #16, 18?

Check PCB Pattern.

CheckIC501.

C-2. Bad playback quality (2)

YES

DF-5500/DFX-5502 SVC 2006.10.14 10:6 AM ˘ ` 7 mac001 1200DPI 80LPI

TROUBLESHOOTING

No broadcasting signal

received

Is the output at IC501 pin#

61(CLK), 60 (DATA) normal?

Is SIF,Video output at TMI(RF101)

pin#16,19 normal?

Check IC 501.

Check P302

YES

Is Video Signal input at IC501

pin#56?

Is there Video output at P302

pin#5?

Check TMI (RF101) Block.

Check Video Buffer Q670

D. No broadcasting signal received

YES

DF-5500/DFX-5502 SVC 2006.10.14 10:6 AM ˘ ` 8 mac001 1200DPI 80LPI

TROUBLESHOOTING

Cassette tape isn’t inserted.

Is 5V voltage obtained at Loading

parts IC501 pin#63?

Is 14V voltage obtained at

Capstan Motor P501 pin#2?

Check at EVER 14V

Check D825

ConnectCapstanandLoadingMotor.

CheckconnectorandCapstanMotor.

YES

Is 13VvoltageobtainedatEach

partsofLoadingMotor?

Replace Loading Motor.

Check D825 and POWER circuit.

E. No CASSETTE Loading

YES

F. AUTO STOP in Playback mode

VCR stops automatically in

playback mode.

Check R544,C516 and P501

pin#11.

CheckS501,S502REELSensor.

Is D.PG/FG pulse at IC501

pin#90 normal ?

Is C. FG pulse at IC501 pin#87

normal ?

IsthereREELPulseatIC501

pin#79,80?

CheckandreplaceIC501.

YES

Check C.FG(R543,C517) and

P501 pin#1.

DF-5500/DFX-5502 SVC 2006.10.14 10:6 AM ˘ ` 9 mac001 1200DPI 80LPI

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