NAD T572C Bedienungsanleitung

SERVICE MANUAL

T572C/T572AH

DVD VIDEO PLAYER

MODELS : T572C/T572AHSERVICE MANUAL

NAD ELECTRONICS INTERNATIONAL

TORONTO

T572C/T572AH

DVD VIDEO PLAYER

T572C/T572AH

DVD VIDEO PLAYER

3-17 3-18

NOTES) Warning

NOTES) Parts that are shaded are critical

NOTES) With respect to risk of fire or

NOTES) electricial shock.

R1A1

56(2W)

'02. 03. 19 R14140A

CIRCUIT DIAGRAM

1. POWER(SMPS) CIRCUIT DIAGRAM

NOTE :

1. Shaded( ) parts are critical for safety. Replace only

with specified part number.

2. Voltages are DC-measured with a digital voltmeter

during Play mode.

Oscillation abnormal

Digitron no Power

3.3V line dead.

No Power

8V line dead

5V_A/5V_D, No Power

No Power

3-19 3-20

5 6

Spindle Servo Loop

RF SIGNAL

Focus Servo Loop

Tracking Servo Loop

Sled Servo Loop

WAVEFORM

D201

D202

R284

R283

'02. 03. 19 R14135A

2. DVD DSP CIRCUIT DIAGRAM

DVD/CD picture

audio abnormal µ-com

Interface adress CD/DVD picture

audio abnormal

Focus Servo

fail

Tracking

Servo fail

Scratched

Disc abnormal

Sled Servo fail

DRAM Control

Disc Detect

Error

Spindle Servo fail

3-21 3-22

3. DRIVE & RF CIRCUIT DIAGRAM

19 20

21 1

20 19

WAVEFORM

Spindle Servo Loop

Turn Table Loop

Focus Servo Loop

Tracking Servo Loop

Sled Servo Loop

R2R3

R2R1 0

R2R4

'02. 03. 19 R14133A

Turntable

not operate

DVD laser

not operate CD laser

not operate

Tray Loading

Speed control

Turn table

speed control

Actuator spindle

sled not operate

CD laser

not operate

Tracking Servo fail

Servo fail

Focus

Servo fail

3-23 3-24

7913 811 12

WAVEFORM

OPTICAL/COAXITAL OUT

Y/Pb/Pr(Component)

Y.c(S-VHS)

Audio L/R OUT

CVBS

150

'02. 08. 26 R14134A

NAD

4. PANTERA CIRCUIT DIAGRAM

No Power on

No Power 1.8V

Audiuo DAC Interface

System not operate

System not working or

Digitron not display.

Not memoried setup

3-25 3-26

• WAVEFORMS

IC2A1 Pin 42, Focus Error IC2A1 Pin 41

Tracking Error

IC501 Pin 114

Component Y

IC2A1 Pin 41

VBR TRACKING Error

IC2A1 Pin 57,

IC201 Pin 88, SLED Drive(FMO)

IC2A1 Pin42, Focus Error(in Focus Search)

IC201 Pin 83, Focus Drive(FDO)

IC501 Pin 118, Composite IC501 Pin 112, Chrominance

(Super video out Mode)

Tek Stop : 2.50MS/s 4 Acqs

M20.0µs2 Apr 1999

14:47:27

Glitch Ch1

Ch3 500mV

[T ]

IC501 Pin 114, Luminance

(Super video out Mode)

Tek Stop : 1 00kS/s 3290 Acqs

M 500µsCH1 280/mV

Edge Slope

Type

<Edge>

Source

Ch1

Coupling

Level

280mV

Mode

Holdoff

Ch3 1.00V

[ T ][ T ]

Slope

IC501 Pin 99,

PANTER MAIN

IC501 Pin 112

Component Pb

IC501 Pin 110

Component Pr

TURN(+)(-) from Motor Drive

Reverse turn, IC301 6, 8

Sensor 1 (disc position)

Sensor 2 (disc ready),

IC301 78,89

TURN(+)(-) Signal from µ-com

TE/TZC After tracking

servo ON (Play mode),

IC2A1 36, IC2A4 7

TURN(+)(-) from Motor Drive

Forward turn

TE/TZC Before tracking

servo ON

TZC/MIRR (Search mode)

IC2A4 7, IC2A1 27

TE/SLD(+) Search mode

(outter &inner),

IC2A1 36, IC2M1 28

3-27 3-28

5. MEMORY CIRCUIT DIAGRAM

17 17

WAVEFORM

'02. 03. 19 R14136A

4.7K

Program download fail

Digitron abnormal

Not power on

Not memoried

setup Menu

“No Disc” display

Tray not open/close

Tray not closed

Digitron all not display and

system not operate

Turntable

not operating

Pick-up not initial

operating

Disc number

detect error

3-29 3-30

6. TIMER & KEY CIRCUIT DIAGRAM

System not

operate

System not

operate

Remocon

not operate

3-31 3-32

7. A/V CIRCUIT DIAGRAM

'02. 03. 19 R14137B

3-33 3-34

8. JACK CIRCUIT DIAGRAM(T572AH)

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