Daewoo DVD-2600 Service Manual

ОКЕАН DVD-2600

CONTENTS

Page

Specifications .................................................................................................................................................... 2

Performance Specifications .............................................................................................................................. 3

Electrical Parts List ............................................................................................................................................ 5

Wiring Diagram ...................................................................................................................................... 11

Printed Circuit Boards....................................................................................................................................... 12

Schematic Diagrams ........................................................................................................................................ 21

Voltage Chart ................................................................................................................................................... 25

IC Block Diagrams & IC Pins Description ....................................................................................................... 28

Exploded Drawing and Mechanical Parts List ................................................................................................. 51

PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety characteristics. These safety characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are identified by schematic diagram and the parts list. Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock, fire or other hazards.

in the

SPECIFICATIONS

TUNER SECTION

VIDEO OUPUT

AUDIO OUPUT

Output level 2 Vrms (1 kHz, 0 dB)

Jack Pin jack

SPEAKERS SECTION

Speakers (Front/Center/Rear)

Speaker system Bass reflex

Speaker unit 70 mm dia. cone type

Rated impedance 8 ohms

SUB-WOOFER SECTION

Speaker system Bass reflex

Speaker unit 180 mm dia. cone type

Rated impedance 4 ohms

Specifications and external appearance are subject to change without notice .

Power supply AC 110-240V ~ 50Hz Power consumption 2022 W Signal system Standard PAL Laser Semiconductor laser, wavelength 650/780nm Signal-to-noise More than 112dB Audio dynamic range More than 108dB Harmonic distortion Less than 1% Operating temperature 41°F to 95°F(+5°C to 35°C) Operating humidity 5% to 85% (no condensation)

Output level 1 Vp-p (75 ) Jack Pin jack

Ω

PERFORMANCE SPECIFICATIONS

GENERAL TEST CONDITION

AMPLIFIER SECTION

dB R Rs 40 30

TEST ITEM

Power supply : AC 230V ~ 50Hz Output load : 8 ohm non-reactive x 2 Reference output :250mW

UNIT NOMINAL LIMIT

1. 10% THD Power AC (Lt, Rt) W 7.5 6

2. Cross Talk for Input (AUX/CD-REF) w/BPF dB - 45

3. Minimum Vol. Hum mV 1 3

4. Maximium Vol. Hum mV 8 15

5. Bass Effect (Lt, Rt) dB ±10 ±4

6. Treble Effect (Lt, Rt) dB ±10 ±4

7. Middle Effect (Lt, Rt) dB ±10 ±4

8. Separation (Lt, Rt) dB - 45

PARAMETER UNIT CHANNEL NOMINAL LIMIT COMMENTS

1. Output Power @ W L 7 6 10% THD W R 7 6

W C 7 6

(1KHz, 0dB) W Ls 7 6

W Rs 7 6

2. THD @ L & R STO % L 0.1 0.5

% R 0.1 0.5

(1KHz, 0dB) % C 0.1 1.5 Vout: 2v 1KHz

% Ls 0.1 1.5 % Rs 0.1 1.5

3. Channel Balance dB L 0 0 REF

dB R 0 +5±1 1 KHz, 0dB, 6 channels

(Ref : 1KHz, 0dB) dB C 0 2 driven sound level for

dB Ls 0 2 6 channels set too dB Rs 0 2

4. Signal to Noise dB L 55 50

(dB) dB R 55 50

dB C 55 30 dB Ls 55 30 dB Rs 55 30

5. Channel Separation dB L R 55 30 from Left dB L C 55 30

dB L Ls 40 30 dB L Rs 55 30

6. Channel Separation dB R L 55 30 from Right dB R C 55 30

dB R Ls 55 30

PERFORMANCE SPECIFICATIONS - CONTINUED

DVD AUDIO SECTION (LINE OUTPUT)

UNIT NOMINAL LIMIT

1. THD+N (LT2-1, 3-1 20kHz LPF on) % 0.015

2. Output Level (LT2-1, 3-1) V 1.8 ±0.3

3. S/N (LT2-1, 3-20 JIS-A Filter on) dB 80 70

4. Crosstalk (LT2-1, 3-21.22 1kHz, BPF on) dB 70

5. Frequency Range

(48kHz / 24BIT) (LT2-1. 3-1~19) 31Hz dB 0 ±1.0

(FL, FR) 499Hz dB 0 ±1.0

1kHz dB 0 ±1.0

10kHz dB 0 ±1.0

22kHz dB 0 ±1.0

6. Frequency Range 20Hz dB 0 ±3.0

(96kHz / 24BIT LT2-1, 6-1~12) 400Hz dB 0 ±3.0

(FL,FR) 1kHz dB 0 ±3.0

12.8kHz dB 0 ±3.0

20kHz dB 0 ±3.0

7. Digital Output Level mV 550 ±100

(LT2-1, 1-1 75 Loading on)

8. Dynamic Range dB 85

9. Black Band (TDV545) µm - 600

10. Finger Print µm - No .10

11. Eccentric (MDVD142 TEAC) µm - 200

12. Vertical (MDVD151 TEAC) mm - 0.6

CD SECTION

1. Interruption (PHILIPS SBC 444A) µm - 600

2. Black Dot µm - 600

3. Finger Print µm - No .18

4. Eccentric (TCO-712 ABEX) µm - 140

5. Vertical (TCO-731 ABEX) mm - 0.8

TEST ITEMS

VIDEO SECTION

1. Signal Level (LT2-1) Composite V(pp) 1.0 ±0.2

75 Terminated S-Y V(pp) 0.714 ±0.2

Oscilloscope S-C(Burst) V(pp) 0.286 ±0.05

75% Color Bar Component-Y V(pp) 0.714 ±0.2

2. Frequency Char. Composite 1.0/0.5MHz dB 0 ±2.0

LT2-1, REF=0dB 0.5MHz, L156 VM700A 2.0/0.5MHz dB 0 ±2.0

Composite) 4.0/0.5MHz dB 0 ±2.5

4.75/0.5MHz dB 0 ±2.5

5.75/0.5MHz dB -2.0 +3-4

3. Frequency Char.S-Y 1.0/0.5MHz dB 0 ±2.0

LT2-1, REF=0dB 0.5MHz, L156 VM700A 2.0/0.5MHz dB 0 ±2.0

S-Y 4.0/0.5MHz dB 0 ±2.5

4.75/0.5MHz dB 0 ±2.5

5.75/0.5MHz dB -2.0 +3-4

4. Composite Video-S/N 100K-4.2MHz dB 60 50

(LT2-1) One Line Only (SC TR ON)

L131 VM700A

5. S-Y S/N (LT2-1 One Line Only) 100K-4.2MHz(SC TR ON) dB 60 50

6. Color-AM Color-PM (One Line Only) 100Hz-500KHz dB >40

(LT2-1, L131 VM700A) dB >40

TEST ITEMS

UNIT NOMINAL LIMIT

Ω

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