Question about Technics SA-DA10 Receiver

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Power Amp Module

Turned unit over to a guy to fix it sometime ago and he keeps trying. He thought it was the power amp module as well but could only find replacements at $80 each, so he tried removing one side, and replacing it with the center module, trying to sort which might be bad. So far no improvement. He is now tracing signal thru the thing,  Any idea where to get replacement power amp modules for less than $80 each? If I have to replace all three sending it to a landfill might make more sense. Any response will be appreciated.

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  • T-lee Dec 13, 2008

    I've lost my right and left channel but not total sound loss. The switching relay for those channels, one of five doesn't hold. When I slightly flex the board or tap the relay, it will make contact and I will get a very faint sound. I believe I lost the power module for the front right and left. I ordered a new relay from electronic goldmine as agood measure. I have worked on ab amplifiers before and have replaced power transistors before. When locating the power amp module I am assuming that they are on the heat sink like power transitors on older amps. Just to be frank where are the power mods, what exactly to they look like and what is the part number and where can they be bought? thanks

  • audiokachina Feb 25, 2009

    i have some kind of problem with this receiver ,is a desing problem,the power module for the channel A is on tha same heathsink with the sorround amp module so they go hot and the heat protection activated and turn off the sound
    if you see at the rear panel,a gan even is hot that don't turned on
    so
    i put a 9vdc (cell phone)power adapter and conected to the fan and the small transformer hooked to the ac terminal of the reciver ,that one on the rear,so when the reciver is turned on the fan start working and now the reciver work ok.

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  • Technics Master
  • 5,568 Answers

There may be more reasonable prices around but you will need to post the type number of the module.
Unless it is a proprietary part number, it should have 2-3 letters, then several numbers following and perhaps another letter.

These units seem to have more problems than others in their class and they may have inadequate output protection.

Posted on Apr 23, 2008

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My 2003 Mercury Mountaineer has an electrical problem. It started about a year ago with the key fob not working, I have bought 3 and all won't work even after re-programing. now tonight I went to


Could be a windshile leak down the A-Pillar & water
gets into the delayed accy relay for the GEM Module
(Body Computer as ford called it for a few years) & you
get what you have now

Try Goolge as I did a few weeks ago for a relative
He had the same issue with the blower being on &
killing the battery

No real fix I found for the windshield leak
Seem a robot didn't put the rubber sealant
on correctly at the factory fo about 5 years
on several fords.

If it isn't water related then the GEM Module
controls all those body features

If you get a used one & match up the numbers,
you supposedly can avoid buying a reman gem
& the expense of having to reflash it to your factory
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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/Transmission
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
Only)
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
Connector
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
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WE REQUIRE 1xPOWER AMP MODULE TO SUIT JVC RX-ES1 THERE ARE NO NUMBERS ON THE PCB FOR REFERANCE


The Power Amp Modules are not available as individual units.

Which Power Amp Module has failed (L, R SL, SR or C) and what has failed on it?

May 12, 2011 | Audio Players & Recorders

1 Answer

I need help on changing a fuse in PMP3000. The mixer went out on us one day, so I hooked it into an amp that we had. It works good as an unpowered mixer, but cannot get it to work as a powered mixer. I...


No, that is NOT what the problem is.

The fuse protects the power supply. The power amps have failed. The usual cause is an arc between layers of the multi-layer circuit board. The labor to repair the power amp module is extensive. I have repaired several.

You can find new amp modules and I would purchase a new one and drop into your unit. The amp module is an HCA2400.

There is probably $15 of parts blown in each side of the power amp and it takes about 6 hours to repair. One has to grind out the burned area (internal layers not necessarily visible on surface) and re-insulate and then install jumper wires to replace those taken out.

Each side of the amp will likely take out 3 switching MOSFET transistors and often a Zener diode. Sometimes a low resistance metering resistor will be fried with smoky residue underneath the board. When this happens two small surface mounted resistors will be blown open. Great care has to be taken when insulating the board damage and replacement of the blown circuit traces.

You can find HCA2400 power amp module replacements for about $175 online.

Use of the unit as an unpowered mixer is a bit dangerous as if arc re-establishes it can fry the power supply taking out two very expensive IGBT's and many other components. If the mixer still works, then your whole power supply is still OK.

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Radio works intermittenly,Sometimes all day,Then not at all. I have replaced Amp..Worked great for a few days.You think its the radio head unit?


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2 Answers

Fusebox diagram


hi, this is courtesy of ask me help desk...

FUSE PANEL INTERIOR

1 - 20 Amp (Yellow)Power Antenna Relay, Trailer Tow Relay.

2 - 15 Amp (Blue) Brake Lamps.

3 - 20 Amp (Yellow) Hazard Lamps.

4 - 15 Amp (Blue) Security Lamp.

5 - 15 Amp (Blue) Interior Lighting.

6 - 15 Amp (Blue) Security Alarm Module.

7 - 15 Amp (Blue) Security Alarm Relay, Security Alarm Module, Flash-To-Pass.

8 - 15 Amp (Blue) Overhead Console, Keyless Entry, Radio Memory, Clock/Chime Module, Power Locks, Power Mirrors, HVAC & VIC.

9 - 20 Amp (Yellow) Rear Wiper.

10 - 15 Amp (Blue) Radio Accessory.

11 - 15 Amp (Blue) Cigar Lighter.

12 - 15 Amp (Blue) Parking Lamps, Automatic Headlamps.

13 - 20 Amp (Yellow) Horn Relay.

14 - 20 Amp (Yellow) Power Lock Relays.

15 - 3 Amp (Violet) ABS Module & Relay.

16 - 20 Amp (Yellow) Turn Signals.

17 - 7.5 Amp (Brown) Heater & Air Conditioning Module.

18 - 15 Amp (Blue) Air Bag Module.

19 - 15 Amp (Blue) Interior Mirror, Auto Headlamps, Overhead Console, VIC/GDM Module, Heated Rear Window Relay Coil, Illuminated Entry Relay & Chime Module.

20 - 10 Amp (Red) Heated Rear Window Switch, Overdrive Switch, Speed Control.

21 - 15 Amp (Blue) Cluster, Security Alarm Module, Lamp Outage Module.

22 - 15 Amp (Blue) Air Bag Module, Speedometer, Tachometer, Telltales, Gauges.

23 - 15 Amp (Blue) Heated Mirror Feed, Heated Rear Window Switch.

24 - 7.5 Amp (Brown) Instrument Panel Illumination.

25 - 30 Amp Circuit Breaker Power Seats.

26 - 30 Amp Circuit Breaker Power Windows.

27 - 10 Amp Circuit Breaker Security Alarm Module, Front Wiper.

28 - 30 Amp Circuit Breaker Heated Rear Window Relay

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1 Answer

No Power to Duo-Term Thermastat


Can you give me model #'s of thermostat & AC unit, as well as upper unit? Number of or at least a description of thermostat, and numbers for ceiling assy should be visible when filter taken off, as well as # for upper unit should be tagged on bottom of unit on roof.

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Main fuses for the horn and air bag


Fuse #8, #18 and #22.

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3 - 10 Amp - Left High Beam Headlight
4 - 10 Amp - Radio, CD Player
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6 - 15 Amp - Power Outlet
7 - 20 Amp - Tail, License, Parking, Illumination Lights, Instrument Cluster
8 - 10 Amp - Airbag
9 - 10 Amp - Turn Signal Lights, Turn Signal/Hazard Indicator
10 - 15 Amp - Right Low Beam
11 - 20 Amp - High Beam Relay, High Beam Indicator, High Beam Switch
12 - 15 Amp - Left Low Beam Headlight
13 - 10 Amp - Fuel Pump Relay, Power Train Control Module
14 - 10 Amp - Cluster, Day/Night Mirror,Sunroof, Overhead Console, Garage Door Opener, Body Control Module
15 - 10 Amp - Daytime Running Light Module (Canada)
16 - 20 Amp - Fog Light Indicator
17 - 10 Amp - ABS Control, Back Up Lights, Daytime Running Lights, A/C Heater Control Cavity Fuse Circuits
18 - 20 Amp - Power Amplifier, Horn
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20 - 20 Amp - Brake Lights
21 - 10 Amp - Leak Detection Pump, Low Rad Relay, High Rad Relay, A/C Clutch Relay
22 - 10 Amp - Airbag
23 - 30 Amp - Blower Motor, ATC Power Module
24 - 20 Amp - Power Window Motors
25 - 20 Amp - Power Door Lock Motors, Power Seats

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