Denon RCD-N7 Service Manual

40
2. No Sound,Noise generated
2.1. COMMON
Check Power Supply Voltages for PWM CONTROLLER.
MAIN B'D
• [IC51] : 9,15,36,54pin
VDD +3.3V OK?
Check Power Supply Voltages for AMP IC.
MAIN B'D
• [IC71, IC72] : 1,36,18,19pin
GVDD +12V OK?
• [IC71, IC72] : 21,26,29,34pin
PVDD +29V(Bi-Amp : +19V) OK?
Check Reset signal for PWM CODEC.
MAIN B'D
• [IC41] : 25pin 4683_RESET
"H" level O.K.?
Check Reset signal for PWM CONTROLLER.
MAIN B'D
• [IC51] : 11pin RESET
"H" level O.K.?
Check Reset signal for AMP IC.
MAIN B'D
• [IC71,IC72] : 5,15pin VALID
"H" level O.K.?
Check Oscillation waveform.
MAIN B'D
• [IC41] : 22pin TXO
12.288MHz OK?
Check Oscillation waveform.
MAIN B'D
• [IC51] : 19pin XTL_O
13.5MHz OK?
• [IC51] : 63pin MCLK
MCLK OK?
Check controll signal for CODEC.
MAIN B'D
• [IC41] : 26,27,28pin
4683_CDTI,4683_CCLK,4683_CSN
Check Power Supply Voltages for CODEC.
MAIN B'D
• [IC41] : 1,20,33,43,50pin VDD +5V
• [IC41] : 18pin VDD +3.3V
O.K.?
Check Soldering.
• [IC13] : 3pin +5V
• [CN45] : 10pin +3.3VD
Check Soldering.
• [CN45] : 10pin +3.3VD
• POWER B'D
Check Soldering.
• [CN45] : 2pin +12V
• [CN61] : 1,2,3pin +29V
• POWER B'D
Check Soldering.
• [IC11] : 102pin 4683_RESET on MAIN B'D
Check Soldering.
• [IC11] : 95pin RESET_5508 on MAIN B'D
Check Soldering.
• [IC51] : 39pin VALID on MAIN B'D
Check Soldering.
• [X401] on MAIN B'D
Check Soldering.
• [X501] on MAIN B'D
• [IC41] : 17pin 5508_MCLK on MAIN B'D
Check Soldering.
• [IC11] : 105,106,107pin
4683_CDTI,4683_CCLK,4683_CSN
NG
NG
NG
NG
NG
NG
NG
NG
NG
OK
OK
OK
OK
OK
OK
OK
OK
OK

Denon RCD-N7 Specifications

General

Frequency range	5 - 20000 Hz
RMS rated power	65 W
Pre-out channels	1 SW
Input sensitivity	200 mV
Pre-out connectivity	Yes
Audio output channels	2.0 channels
Signal-to-Noise Ratio (SNR)	100 dB
Total Harmonic Distortion (THD)	0.7 %
Dynamic power per channel (4 Ohm)	80 W
Power output per channel (20-20KHz@8 Ohm)	- W
Audio (L/R) in	2
Digital audio optical in	1
Headphone connectivity	3.5 mm
Connectivity technology	Wired & Wireless
Speakers connectivity type	Binding post
Audio formats supported	AAC, FLAC, MP3, WMA
Image formats supported	JPG
Video formats supported	AVI, WMV
AM band range	522 - 1611 kHz
FM band range	87.5 - 108 MHz
Supported radio bands	AM, FM
Preset stations quantity	99
Internet radio services supported	Last.fm, Napster
Optical drive type	CD player
Disc types supported	CD, CD-R, CD-RW
Display	OLED
Product color	Silver
Audio decoders	Not supported
Volume control	Rotary
Apple docking compatibility	iPhone, iPod
Number of products included	1 pc(s)
AC input voltage	230 V
AC input frequency	50 Hz
Power consumption (standby)	0.4 W

Weight and Dimensions

Depth	299 mm
Width	280 mm
Height	112 mm
Weight	4300 g