NAD M5 C/AH User Manual

SECTION 3 ELECTRICAL
CONTENTS
ELECTRICAL TROUBLESHOOTING GUIDE
1. Power check flow……………………………………………………………………… 3-2
2. System operation flow…………………………………………………………………3-3
3. Test & debug flow……………………………………………………………………... 3-4,9
DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGING
1. System 27MHz clock,reset,flash R/W signal………………………………………..3-10
2. SDRAM clock………………………………………………………………………….. 3-11
3. TRAY OPEN/CLOSE signal…………………………………………………………..3-11
4. SLED control related signal(NO disc control)……………………………………....3-12
5. LENS control related signal(NO disc control)……………………………………… 3-13
6. FOCUS control related signal(NO disc control)…………………………………… 3-14
7. SPINDLE control WAVEFORM……………………………………………………… 3-15
8. FOCUS ON WAVEFORM……………………………………………………………. 3-16
10. ES6168F Audio optical and coaxialoutput(SPDIF)………………………………. 3-17
11. ES6168F Video output to Audio DAC……………………………………….…….. 3-18
9. RF WAVEFORM…………………………………………………………….…………3-17
12. Audio output(1KHz odB)……………………………………………………….…… 3-18
BLOCK DIAGRAMS
1. Overall block diagram………………………………………………………………… 3-19
2. Power(SMPS) block diagram…………………………………………………………3-20
3. Servo block diagram………………………………………………………………….. 3-21
CIRCUIT DIAGRAMS
1. Power(SMPS) circuit diagram……………………………………………………….. 3-22
2. Decode board-ES6168 section……………………………………………………....3-23,24
4. Decode board-H-POWER & DRIVER section……………………………………...
3-27
3. Decode board-DSP section………………………………………………………......3-25,26
5. Decode board-RF section……………………………………………………………. 3-28
6. Decode board-CONNECT AND 232 section…………………………………........ 3-29
7. Audio board…………………………………………………………………............... 3-30,31
8. 232 AND AMP module board………………………………………………………...3-32
9. Front panel board…………………………………………………………………….....3-33
CIRCUIT VOLTAGE CHARGE
………………………………….…………………........3-34,41
PRINT CIRCUIT BOARD DIAGRAM
1. Decode board………………………………………………………………….............3-42,43
2. Audio board………………………………………………………………………….....3-44,45
3. SMPS board………………………………………………………………………....... 3-46
4. Front panel board……………………………………………………………………...3-47,48
5. RS232 board……………………………………………………………………….......3-47,48
6. AMP module board…………………………………………………………………… 3-47,48
3-1

NAD M5 C/AH Specifications

General

Brand	NAD
Model	M5 C/AH
Category	CD Player
Language	English