3-11
See the eye-pattern vivid?
Does the
sawtooth waveform emit
at IC2A1 Pin 36?
Does the 1.6V emit?
Check RF Eye-Pattern.
RF : 1.5-1.6V(Q2A6 collector)
Fig.5. RF
waveform
Check IC2A1 Pins 47, 50, 51, 52.
No signal: Pick-up is defective
Replace IC201.
Check IC201 Pin84.
No signal at IC201 : IC201 is defective
• Check IC201 Pin 105.
• Check the clock at the IC201 Pins 138.
• Both are normal : IC201 is defective
Replace IC2A1.
CHECK A
D.
END
NO
NO
NO
NO
YES
YES
YES
YES
Summary of Contents for T 572
Page 1: ...NAD SERVICE MANUAL T 572 T 572 DVD VCD CD PLAYER DVD VCD CD PLAYER DRAFT DATE 30 OCT 2002 ...
Page 36: ...3 31 3 32 7 A V CIRCUIT DIAGRAM 02 03 19 R14137B ...
Page 37: ...3 33 3 34 8 JACK CIRCUIT DIAGRAM T572AH ...
Page 38: ...3 35 3 36 9 JACK CIRCUIT DIAGRAM T572C ...
Page 41: ...3 41 3 42 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE BOTTOM SIDE TOP SIDE ...
Page 48: ...MEMO ...
Page 50: ...M E M O M E M O ...
Page 66: ...MEMO ...
