NAD C370 2-Channel Amplifier Logo

Question about NAD C370 2-Channel Amplifier

4 Answers

Power light switches to red.

My amp plays fine for 10 minutes or so then suddenly stops and the green power light turns red. The unit doesn't feel hot at all and the speakers are not having wiring problems. Any thought?

Posted by Scott Strasser on

  • 1 more comment 
  • Anonymous Nov 08, 2007

    The unit goes into protact mode ie; red light with or without speakers.

    I suspect the protection circuit could be faulty as the sound (when working) is good.

  • BodyWorks Nov 14, 2007

    Have a similiar problem with a rather old NAD c320 amp which I am usuing as a switching box and gateway connecting to the graphic equalizer and 2 NAD THX 218 amps in bridge mode.

    This problem has been developing over the past year or so in a more or less prgressive manner.

    The c320 will either be turned off or cuts out (I have the whole system wired to a motion sensor on/off delayed relay switch). When the unit is switched back on it will immediately go into protected mode (which will last anywhere from 20 minutes to several hours before it suddenly resumes functioning properly).

    I've had the unit out to the local tech guy who seemed unable solve the problem for me. Would very much appreciate some advice the problem repairable or should I just invest in a new unit. Many Thanks in advance for any help.


    BodyWorks Fitness Centre


  • crispycronk Jan 18, 2008

    I have a similar problem, the unit trips the protectin circuit when first turned on, after 10 minutes the light goes to green and works fine as long as I dont turn it off.

    The local tech looked at it and said 2 of the large filter caps are fried along with approximatly 38 small caps are cooked.

    He also stated the overall design is poor with low heat rated caps in close procimity to resisters etc that generate heaps of heat.

    The end result is approx 5 hours tech time to repair, cheaper to buy a new amp, DONT THINK IT WILL BE AN NAD THOUGH.



4 Answers


  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 26 Answers

This a common problem with NAD amplifiers.
The caps dry up.Look on the protect pcb, this mounted verticaly near the rear of the main pcb, it has a metal frame around it.
Check the 4 x 10000uf smoothing caps, if the tops are not flat, they will need to be replace with 100volt ones.
Also on the right side of the main pcb around a couple of heat sinks there are other caps which dry out.

You have to remove both output modules to remove the main pcb as there is limited access from underneath.

Best of luck

Posted on Nov 09, 2007



  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Expert
  • 42 Answers

Hey, check speaker connection as informatica says. Also i have experienced that nad 216thx, 218thx, etc has problem with bad soldering on the psu pcb i the buttton of the chassic, chaeck for bad soldering on this pcb. Might do the work. i have a schematic, one channal only, on my homepage best regards michael miguelovitch

Posted on Sep 27, 2007



  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

The problem should be few bad electrolytic capacitors inside the protection circuit. It cause the unit go to protection mode.

Posted on Aug 25, 2007

Greg Cann

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,114 Answers

I suggest rechecking the speaker wiring in case there is a small "whisker" of wire touching either the case or adjacent terminal, also check the speaker end of the wires for same. Do you have a pet? I have seen wires chewed partly through by cats (& rabbits)! See the information from the manual below:

Posted on Jul 26, 2007

Add Your Answer


Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:


2015 jeep Grand Cherokee climate control cup holder lights. what is fuse #?

Hi, I have a 2014 Grand Cherokee Laredo E. There is a white line at the top of the cupholders that I would expect to light up with the ambient lighting, but does not light up in my truck. Does it light up in others? Is there a way to get lighting in there?


2015 Jeep Grand Cherokee fuse layout Power Distribution Center The Power Distribution Center (PDC) is located in the engine compartment near the battery.
F03 60 Amp Yellow - Radiator Fan
F05 40 Amp Green - Compressor for Air Suspension - If Equipped
F06 40 Amp Green - Anti-lock Brakes/Electronic Stability Control Pump
F07 40 Amp Green - Starter Solenoid
F08 20 Amp Blue - Emission Sensors (Diesel engine only)
F09 30 Amp Pink - Diesel Fuel Heater (Diesel engine only)
F10 40 Amp Green - Body Controller/Exterior Lighting #2
F11 30 Amp Pink - Trailer Tow Electric Brake - If Equipped
F12 40 Amp Green - Body Controller #3/Power Locks
F13 40 Amp Green - Blower Motor Front
F14 40 Amp Green - Body Controller #4/Interior Lights #2
F17 30 Amp Pink - Headlamp Washer- If Equipped
F19 20 Amp Blue - Headrest Solenoid- If Equipped
F20 30 Amp Pink - Passenger Door Module
F22 20 Amp Blue - Engine Control Module
F23 30 Amp Pink - Interior Lights #1
F24 30 Amp Pink - Driver Door Module
F25 30 Amp Pink - Front Wipers
F26 30 Amp Pink - Anti-lock Brakes/Stability Control Module/Valves
F28 20 Amp Blue - Trailer Tow Backup Lights - If Equipped
F29 20 Amp Blue - Trailer Tow Parking Lights - If Equipped
F30 30 Amp Pink - Trailer Tow Receptacle - If Equipped
F32 30 Amp Pink - Drive Train Control Module
F34 30 Amp Pink - Slip Differential Control
F35 30 Amp Pink - Sunroof - If Equipped
F36 30 Amp Pink - Rear Defroster
F37 25 Amp Clear - Rear Blower Motor - If Equipped
F38 30 Amp Pink - Power Inverter 115V AC - If Equipped
F39 30 Amp Pink - Power Liftgate - If Equipped
F40 - 10 Amp Red Daytime Running Lights/Headlamp Leveling
F42 - 20 Amp Yellow Horn
F44 - 10 Amp Red Diagnostic Port
F46 - 10 Amp Red Tire Pressure Monitor - If Equipped
F49 - 10 Amp Red Integrated Central Stack/Climate Control
F50 - 20 Amp Yellow Air Suspension Control Module - If Equipped
F51 - 15 Amp Blue Ignition Node Module/Keyless Ignition/Steering Column Lock
F52 - 5 Amp Tan Battery Sensor
F53 - 20 Amp Yellow Trailer Tow - Left Turn/Stop Lights - If Equipped
F55 - 10 Amp Red DTV/DSRC
F56 - 15 Amp Blue Additional Content (Diesel engine only)
F57 - 15 Amp Blue HID Headlamps LH - If Equipped
F59 - 10 Amp Red Purging Pump (Diesel engine only)
F60 - 15 Amp Blue Transmission Control Module
F61 - 10 Amp Red Transmission Control Module/PM Sensor (Diesel engine only)
F62 - 10 Amp Red Air Conditioning Clutch
F63 - 20 Amp Yellow Ignition Coils (Gas), Urea Heater (Diesel)
F64 - 25 Amp Clear Fuel Injectors/Powertrain
F66 - 10 Amp Red Sunroof/Passenger Window Switches/Rain Sensor
F67 - 15 Amp Blue CD/DVD/Bluetooth Hands-free Module - If Equipped
F68 - 20 Amp Yellow Rear Wiper Motor
F69 - 15 Amp Blue Spotlight Feed - If Equipped
F70 - 20 Amp Yellow Fuel Pump Motor
F71 - 30 Amp Green Audio Amplifier
F73 - 15 Amp Blue HID Headlamp RH - If Equipped
F74 - 20 Amp Yellow Brake Vacuum Pump - If Equipped
F76 - 10 Amp Red Anti-lock Brakes/Electronic Stability Control
F77 - 10 Amp Red Drivetrain Control Module/Front Axle Disconnect Module
F78 - 10 Amp Red Engine Control Module/Electric Power Steering - If Equipped
F80 - 10 Amp Red Universal Garage Door Opener/Compass/Anti-Intrusion Module
F81 - 20 Amp Yellow Trailer Tow Right Turn/Stop Lights
F82 - 10 Amp Red Steering Column Control Module/Cruise Control
F83 - 10 Amp Red Fuel Door
F84 - 15 Amp Blue Switch Bank/Instrument Cluster
F85 - 10 Amp Red Airbag Module
F86 - 10 Amp Red Airbag Module
F87 - 10 Amp Red Air Suspension - If Equipped/Trailer Tow/Steering Column Control Module
F88 - 15 Amp Blue Instrument Panel Cluster
F90/F91 - 20 Amp Yellow Power Outlet (Rear seats) Selectable
F92 - 10 Amp Red Rear Console Lamp - If Equipped
F93 - 20 Amp Yellow Cigar Lighter
F94 - 10 Amp Red Shifter/Transfer Case Module
F95 - 10 Amp Red Rear Camera/ParkSense®
F96 - 10 Amp Red Rear Seat Heater Switch/Flashlamp Charger - If Equipped
F97 - 20 Amp Yellow Rear Heated Seats & Heated Steering Wheel - If Equipped
F98 - 20 Amp Yellow Front Heated Seats - If Equipped
F99 - 10 Amp Red Climate Control/Driver Assistance Systems Module
F100 - 10 Amp Red Active Damping - If Equipped
F101 - 15 Amp Blue Electrochromatic Mirror/Smart High Beams - If Equipped
F103 - 10 Amp Red Cabin Heater (Diesel Engine Only)/Rear HVAC
F104 - 20 Amp Yellow Power Outlets (Instrument Panel/Center Console)

DVD Player will not power on. Power Indicator Light flashes repeatedly.

Plug out the device,Open the outer shell or strip the outer shell take a hair dryer heat up the board slightly until it feels slightly warm then plug in and switch on and remove disc.Then put outer shell back and fasten screws that where removed.

Jag 2005 diesel 2.0 where is the fuse front right headlight

found this, hope it helps!
X-Type Fuse/Relay identificationpicture.php?albumid=77&pictureid=795


Engine compartment fuse box - fuses
Fuse Fuse Rating Colour Circuit

No. Type (amps)

F1 Cartridge 20 Blue Dip beam, High Intensity Discharge (HID) light relay.
F2 Cartridge 50 Red Ignition relay feed.
F3 Cartridge 60 Yellow ABS.
F4 Cartridge 30 Pink Rear window heater/heated mirrors relay.
F5 Cartridge 30 Pink Automatic transmission control module relay.
F6 Cartridge 30 Pink Heater blower relay.
F7 Cartridge 50 Red Power supply to passenger compartment fuse box.
F8 Cartridge 80 Black Blower module.
F9 Cartridge 50 Red Engine management system power relay.
F10 Cartridge 20 Blue Headlight power wash pump relay.
F11 Mini Not used.
F12 Mini Not used.
F13 Mini 30 Green Heated front screen right-hand side.
F14 Mini Not used.
F15 Mini 30 Green Heated front screen left-hand side.
F16 Mini 20 Yellow Left-hand dip beam, day time running lights, autolights.
F17 Mini 20 Yellow Right-hand dip beam, HID lights.
F18 Mini 20 Yellow Throttle motor supply.
F19 Mini 15 Blue Screenwash pump, rain sensing system.
F20 Mini 5 Tan Navigation display.
F21 Mini 15 Blue Side (Parking) lights.
F22 Mini 20 Yellow Accessories relay.
F23 Mini 10 Red Air conditioning compressor clutch.
F24 Mini 15 Blue Door lock power.
F25 Mini 15 Blue Direction indicators (GEM).
F26 Mini 15 Blue Horns.
F27 Mini 10 Red Automatic transmission control module, transit relay.
F28 Mini 15 Blue Ignition switch.
F29 Mini 30 Green Starter motor solenoid.
F30 Mini 30 Green Accessory sockets.
F31 Mini 10 Red Engine management relay coil.
F32 Mini 5 Tan Engine management control.
F33 Not used.
F34 Diode D3 Not used.
F35 Diode D2 Engine management control relay diode.
F36 Mini 10 Red Canister purge valve, airflow meter, throttle motor relay, power wash relay, air conditioning relay.
F37 Mini 15 Blue Engine management system, blower speed controller, road speed sensor (if fitted).
F38 Mini 30 Green Oxygen sensor heaters A.
F39 Mini 5 Tan Variable intake valves.
F40 Mini 15 Blue Automatic transmission control module.
F41 Mini 10 Red Injectors.
F42 Mini 30 Green Oxygen sensor heaters B.

Passenger compartment fuse box - fuses
Fuse Fuse Rating Colour Circuit

No. Type (amps)

F60 Mini 20 Yellow Power windows left-hand.
F61 Mini 20 Yellow Power windows right-hand.
F62 Mini 7.5 Brown Rear fog lights.
F63 Mini 7.5 Brown Right-hand - front side light, side markers, rear tail lights.
F64 Mini 7.5 Brown Left-hand - front side light, side markers, rear tail lights.
F65 Mini Not used.
F66 Mini 30 Green Left-hand power seat switches, heater module, lumbar pump.
F67 Mini 5 Tan Battery back-up sounder, transit relay, HID/dip relay, automatic transmission control module.
F68 Mini 15 Blue Cigar lighter.
F69 Mini 7.5 Brown Telematics display, In-car entertainment head unit, antenna module, navigation module, VICS (Japan), parking aid, amplifier premium 1 system, phone handset, phone power supply module, instrument cluster, PATS module.
F70 Mini 30 Green Right-hand power seat switches, heater module, lumbar pump.
F71 Mini 15 Blue VICS (Japan), telephone transceiver, telephone handset.
F72 Mini 15 Blue Radio head unit, CD player, navigation electronic control module, Jaguar diagnostic connector/OBDII connector.
F73 Mini 15 Blue Sunroof unit/module.
F74 Mini 15 Blue Instrument cluster, Premium ICE amplifier unit.
F75 Mini 7.5 Brown Mirror fold back module, battery back-up sounder, air conditioning ECU.
F76 Mini Not used.
F77 Mini 7.5 Brown Left-hand and right-hand heated seats modules.
F78 Mini 5 Tan Phone power supply.
F79 Mini 10 Red Automatic transmission only: Reverse lights, reverse light switch, reverse park aid, electrochromic mirror, instrument cluster.
F80 Mini 7.5 Brown Park interlock, heater switch, OBDII, blower relay.
F81 Mini 20 Yellow Fuel pump control module.
F82 Mini 10 Red Variable power steering, alternator.
Manual transmission only: Reverse lights, reverse light switch reverse park aid, electrochromic mirror, instrument cluster.
F83 Mini 15 Blue Not used.
F84 Mini 5 Tan Instrument cluster, passenger airbag fascia light, seat weight sensor.
F85 Mini 7.5 Brown Right-hand high beam light.
F86 Mini 7.5 Brown Left-hand high beam light.
F87 Mini 15 Blue Front fog lights, master light switch.
F88 Mini Not used.
F89 Mini Not used.
F90 Mini 7.5 Brown Stop lights, cruise control.
F91 Mini 10 Red Sunroof, electrochromic mirror, power windows, power mirrors.
F92 Mini 10 Red Manual transmission cruise control clutch switch, ignition coils, automatic transmission rotary switch.
F93 Mini 30 Green Windscreen wipers.
F94 Mini 20 Yellow HID module.
F95 Mini 10 Red Airbag restraints module.
F96 Mini 7.5 Brown ABS module.
F97 Mini 7.5 Brown Glove compartment light, instrument cluster lights, licence plate lights.
F98 Mini 10 Red Mirror heaters.
F99 Mini 10 Red Luggage compartment light, footwell lights, puddle lights, vanity mirror lights, interior lights, aircon control unit, roof console unit.__________________
02 X-type 3.0l
04 S-type 3.0l
07 X-type 3.0l

Kicker amp powers no audio all connections made properly


Is this the first time installing it or have you had it a while and it suddenly stopped playing ?

Schematic to driver side fuse box

Cavity Fuse Description
1) 15 Amp Blue Horn Relay, Power Sunroof
Relay, Power Window Relay
2) 10 Amp Red Rear Fog Lights (Export Only)
3) 20 Amp Yellow Cigar Lighter
4) 10 Amp Red Headlight Low Beam Right
5) 10 Amp Red Headlight Low Beam Left
6) 20 Amp Yellow Body Control Module/Power Door Locks
7 )10 Amp Red Left Park Light/Left Tail Lamp/License Plate Lamp
8) Spare
9) 10 Amp Red Right Park Light/RightTail Lamp/License Plate Lamp/Cluster
10) Spare Cavity Fuse Description
11) 15 Amp Blue Flasher
12) 15 Amp Blue Stop Lights
13) 10 Amp Red Body Control Module/CMTC/Cluster/Pass. Airbag On,Off Indicator, Auto Daylight
Mirror/Light Bar Switch (Renegade Only)
14) 10 Amp Red PDC Fuel Pump/AC Clutch,
Starter Relay/Engine
Controller (Diesel Only)
15) Spare
16) 20 Amp Yellow Power Outlet (Rear)
17) 15 Amp Blue Rear Wiper
18) 20 Amp Yellow Radio Choke & Relay
Cavity Fuse Description
19 20 Amp Yellow
Frt Fog Lights/Trailer Tow
Stop and Turn Lights
20 Spare
21 10 Amp Red Radio
22 20 Amp Yellow
Power Sunroof Relay/
Antenna Module (Export
23 Spare
24 10 Amp Red PDC Blower Motor
25 10 Amp Red Heated Seat Switches/HVAC
Control Head/Trailer Tow
Battery Charge
26 10 Amp Red Headlight High Beam Right
27 10 Amp Red Headlight High Beam Left
28 Spare
29 10 Amp Red Heated Mirrors/Rear Window
Defroster Indicator
Cavity Fuse Description
30 15 Amp Blue Heated Seat Module
31 Spare
32 10 Amp Red Wiper Switch/Front and
Rear Wipers
33 10 Amp Red SKIM Module/Data Link
34 15 Amp Blue Body Control Module/
Cluster/Interior Lights,
Hands Free Module/Radio/
CMTC/ITM Module & Siren
(Export Only)
35 Spare
36 10 Amp Red Airbag Control Module/
Occupation Classification
Module (Right Front Seat)
37 10 Amp Red Airbag Control Module
38 10 Amp Red ABS Controller/Shifter Assembly
39 10 Amp Red Hazard Flasher (Turn
Signals)/Backup Lamp
Switch (Manual Transmission
Only)/Transmission Range
Switch (Automatic Transmis

Red color turns green after 10 minutes of play. This happens with all my driving games including the new FORZA 3. In the begining it would take about 15 minutes to turn green and now it is only about 7 to...

Yes this is the GPU overheating you will get this and then it will go to freezing and then the red lights, you need to stop the heat build up you can do this yourself or you can send it in to get it fixed.

RED LIGHT FLASHING after local power cut in East London

I switched off the power, then I disconnected the lid from the base, put the power back on, the green light came on & then I reconnected the lid to the base & it has been working fine ever since

Primare A30.2 power amp has suddenly stopped working. Was playing OK, then after about half hour of non use (still powered up) it clicked and the green light went off. Both fuses (mains plug and in the...

Check for the fuses inside the machine, replace only with same ratings! Make sure there's no shortcircuit at the speaker output terminals. Have it checked out by your local dealer if you are in doubt.


Sony FWD50PX2/S 50 in. Plasma Television power problem

It does sound like a power supply problem but that can be misleading because a problem somewhere else in the TV can be "holding down" the power supply. This can usually be determined by using some isolation techniques.
Not finding what you are looking for?


Ask a Question

Usually answered in minutes!

Top NAD Audio Players & Recorders Experts


Level 3 Expert

5720 Answers

The Knight
The Knight

Level 3 Expert

76835 Answers

Muzahura Frank

Level 3 Expert

2071 Answers

Are you a NAD Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides