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Questions regarding repairs of audio equipment such as stereo systems, amplifiers, home theaters, CD players, and tape recorders. Please describe your problem in detail.

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	Topic / Author	Views	Replies	Last post
	Rules: Instructions for posting photos and pictures on the forum gulson 28 Jul 2011 (0) Global rules 28 Jul 2011 11:59	2383364	0	28 Jul 2011 11:59 gulson
	JBL Bar 3.1 Subwoofer - SMPS 40-N150SE Board Faulty Power Supply, Resistor R534 & R535 Values SteCal 09 Dec 2022 (50) Beginners Audio 08 Jun 2025 10:59	17460	50	08 Jun 2025 10:59 jcmyolaymmu
	Will a 29 CRT TVs Magnetic Field Affect In-Ear Headphones Dynamic Drivers? gamemaniaco1987 11 May 2025 (6) Beginners Audio 18 May 2025 18:56	258	6	18 May 2025 18:56 gamemaniaco1987
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	0 Marshall Stanmore 1 Mainboard Missing Parts Identification: C36, D15, U5, D8, C95, IC Chip and misc m4vm 14 May 2025 (0) Beginners Audio 14 May 2025 23:27	63	0	14 May 2025 23:27 m4vm
	[Solved] Onkyo TX-SR602E No Power, Standby Light Off, CPU VCC 4.7V, Standby 10V Present _car123 10 May 2025 (14) Audio Service 17 May 2025 23:48	342	14	17 May 2025 23:48 _car123
	Broken DIN 9 Pin on A320 Creative Speaker: Need Pin Identification for Reconnection KakaReddy 19 Jan 2021 (6) Audio Service 06 May 2025 15:37	11814	6	06 May 2025 15:37 kiezekaelin
	Requesting DSP Dump BIN Files for Onkyo TX-NR5009 or TX-NR5007 Receiver zahimo 24 Apr 2025 (3) Looking for a Audio 27 Apr 2025 18:53	147	3	27 Apr 2025 18:53 fachura
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	Request for HPA 1400 2x700W Db Technology Amplifier Schematic Diagram abramkyr1995 09 Jan 2025 (1) Looking for a Audio 24 Apr 2025 18:58	267	1	24 Apr 2025 18:58 Jarek Pi.
	Marshall Acton II Column: No Sound, LEDs or 3.3V Output - Seeking Schematic & Help xxcxx 08 Jan 2023 (8) Beginners Audio 31 Mar 2025 20:14	3405	8	31 Mar 2025 20:14 mvlahovic76
	Marshall Stanmore 1 No Power: R104-R18 Resistor Values Inquiry zauligiorgio 10 Mar 2025 (1) Beginners Audio 10 Mar 2025 20:13	231	1	10 Mar 2025 20:13 Telo
	0 Behringer Europort MPA100BT: Seeking Service Manual for Battery Leak Repair mitzhamike 04 Feb 2025 (0) Looking for a Audio 04 Feb 2025 21:46	213	0	04 Feb 2025 21:46 mitzhamike

	Seeking Onkyo TX-NR807 New Chip Flash Data after DSP Change from TMSD830K011AZKB to D830K013DZKB5 mozsy93 03 Sep 2019 (23) Looking for a Audio 13 Jan 2025 15:29	7680	23	13 Jan 2025 15:29 Elevit
	0 Wybór igły lub wkładki do Technics SL-BD20: Audio-Technica AT85EP vs AT81CP macix702 12 Jan 2025 (0) Beginners Audio 12 Jan 2025 22:00	327	0	12 Jan 2025 22:00 macix702
	0 Onkyo TX-SR707: Czy XD830K013DZKB4 jest kompatybilny z TMSD803K011AZKB? h3h4h5 04 Jan 2025 (0) Beginners Audio 04 Jan 2025 00:41	300	0	04 Jan 2025 00:41 h3h4h5
	0 Yamaha RX-V677 Firmware Flashing: EN29LV640 IC Version Error Fix guruji 03 Jan 2025 (0) Audio Service 03 Jan 2025 12:20	216	0	03 Jan 2025 12:20 guruji
	Service Manual Request for t.amp TSA4-1300 Amplifier giovannimorgioni 27 Sep 2024 (1) Audio Service 27 Dec 2024 15:12	453	1	27 Dec 2024 15:12 jafo12345
	Yamaha Rx-E410 Receiver Repair: No Power On, Replaced Capacitors & Missing 5V - Need Help djgala 25 Nov 2020 (2) Audio Service 23 Dec 2024 12:23	2628	2	23 Dec 2024 12:23 bacamarte
	Seeking Schematics for Goplana V / Stern Bros Bolero / Galaxie Hi-Fi FM 203 raczekvip 03 Oct 2024 (2) Looking for a Audio 09 Oct 2024 06:24	279	2	09 Oct 2024 06:24 raczekvip
	Service Manual for BEHRINGER EUROPORT EPS500MP3 Amplifier - Identify Sound IC & Codes tiby_1981 22 Dec 2022 (7) Looking for a Audio 09 Sep 2024 17:07	4023	7	09 Sep 2024 17:07 adamskil
	Technics SH-GE70 graphic equalizer and SU-VZ320 amplifier - how to connect to ea jakubs2213 26 May 2018 (6) Beginners Audio 21 Aug 2024 22:51	16554	6	21 Aug 2024 22:51 mat_jbie
	- Sony ST-S211 Tuner Problem: Receiving Mono Only, Can't Switch to Stereo. Help Needed! alexsunny123 13 May 2021 (6) Beginners Audio 07 Aug 2024 13:27	3327	6	07 Aug 2024 13:27 therobertscott56
	Philips Boombox AZ790/12 The power supply AZ 787 has 0V DC out. josefouchard 10 May 2024 (10) Beginners Audio 04 Jul 2024 19:05	1125	10	04 Jul 2024 19:05 bodzioluban
	I have a problem with the Pioneer A X 540 amplifier. One channel sounds slower, I did some measureme george1959 25 May 2024 (1) Beginners Audio 25 May 2024 19:27	609	1	25 May 2024 19:27 SlawekKedra
	RCF Art 715: Identifying L502 Choke & C76 Capacitor Values on PST417F PCB Board Świr 02 Nov 2017 (27) Beginners Audio 17 May 2024 13:10	14166	27	17 May 2024 13:10 hducanh118
	[Solved] What Does the ZD3 Marking Signify on Marshall Stanmore Speakers? kolatrus08 08 Apr 2024 (3) Beginners Audio 10 Apr 2024 16:29	684	3	10 Apr 2024 16:29 kolatrus08
	How to Find DUAL CH 3400-A HiFi System Service/User Manual apostolistzallas 01 Apr 2024 (2) Looking for a Audio 02 Apr 2024 21:40	426	2	02 Apr 2024 21:40 ElektroTechnikus
	Onkyo TX-NR609 Receiver Repair: DSP Chip Reballing and NAND256W3A2BN6E Flashing Experience sushi1808 01 Jul 2023 (10) Beginners Audio 09 Sep 2023 12:38	5625	10	09 Sep 2023 12:38 serhatsev
	Seeking Guidance for Code Reading in RT809F, Mark: Clarion, Model: PN-2805l golowa1971 03 Aug 2023 (0) Dump Audio 03 Aug 2023 15:34	567	0	03 Aug 2023 15:34 golowa1971

	Niles SW6.5 - SW6.5 stopped working while I was on vacation. Need schematic to tro Extremelocura 02 Jun 2023 (1) Beginners Audio 02 Aug 2023 15:04	606	1	02 Aug 2023 15:04 aaanteka
	[Solved] Choosing Cables for Equipment: CCA vs. OFC - Comparing Cost, Quality & Performance adam_anton 01 Jun 2016 (20) Beginners Audio 29 Jul 2023 17:58	29175	20	29 Jul 2023 17:58 398216 Usunięty
	RCF ART 415A Protected Issue: Green & Red Lights On, IRS20955s or ADAU1701 Problem? Amingpx 09 Dec 2022 (4) Beginners Audio 23 Jun 2023 13:24	1722	4	23 Jun 2023 13:24 Amingpx
	Soundcraft GB4 32 Mixer Schematic & Power Supply Repair Guide - May 25, 2023 lavishlifelarenzia 25 May 2023 (2) Looking for a Audio 30 May 2023 14:10	1731	2	30 May 2023 14:10 lavishlifelarenzia
	0 hello je cherche le schema pour receiver amstrad ex333 jmguillou29 22 Apr 2023 (0) Looking for a Audio 22 Apr 2023 09:01	588	0	22 Apr 2023 09:01 jmguillou29
	0 Seeking Harman Kardon AVR 645 EU Upgrade Version 4.04 File and DSB File Mudapea 05 Mar 2023 (0) Looking for a Audio 05 Mar 2023 19:10	645	0	05 Mar 2023 19:10 Mudapea
	Emmerson MR-150BT Bluetooth Speaker: Fixing H1 Error Display Issue - Tips & Solutions Needed Sid998 24 May 2018 (6) Beginners Audio 01 Feb 2023 17:48	9465	6	01 Feb 2023 17:48 jurekSawicki
	Denon x4100w brak dźwięku przemekkucybala 07 Jan 2023 (2) Beginners Audio 11 Jan 2023 22:13	945	2	11 Jan 2023 22:13 przemekkucybala
	Onkyo TX-NR616: How to Test Regulators & Verify Voltages for VSP & VMPU chips (90 chars) onkyoyoho 27 Mar 2021 (2) Audio Service 06 Jan 2023 12:17	1089	2	06 Jan 2023 12:17 dobrykamil
	JBL T460 Headphones: Battery Issues, Not Turning On, Low Battery Message & Charging Concerns derczy 07 Jan 2019 (4) Beginners Audio 06 Jan 2023 11:40	24633	4	06 Jan 2023 11:40 azaghorth
	jbl flip3 wont turn on - jbl flip3 wont turn on, no voltage on vcc uroscekov 27 Oct 2022 (1) Audio Service 06 Jan 2023 10:50	627	1	06 Jan 2023 10:50 azaghorth
	0 Philips Dcm3020/12 Firmware Issue: Radio Not Working After Downgrading v53 to v41 cmuysal 28 Oct 2022 (0) Looking for a Audio 28 Oct 2022 21:14	1161	0	28 Oct 2022 21:14 cmuysal
	[Solved] Why did my JBL 500BT right earbud stop working and how to fix it? Pawcio15 24 Sep 2022 (11) Beginners Audio 24 Sep 2022 17:30	27369	11	24 Sep 2022 17:30 krzysiozak
	Marantz PM 730 Amplifier: Seeking Schematic or Service Manual mario2711 18 Sep 2022 (1) Looking for a Audio 24 Sep 2022 01:09	1254	1	24 Sep 2022 01:09 gorki73
	Alesis m1 active mk2 - Fried components on the board. What and how to fix the pr daleonearth 29 Oct 2021 (2) Audio Service 20 Aug 2022 13:05	1551	2	20 Aug 2022 13:05 Teiz
	Greetings from Italy: Experienced TV Repair Technician w/ TNM5000, RT809H, Easy Jtag Plus Chanku 21 Mar 2019 (9) RTV After hours 16 May 2022 15:44	3312	9	16 May 2022 15:44 luckmoden
	AM/FM tuner FS281-11 (with tuner IC LA1844) - no L/R output sound fastos 19 Mar 2022 (3) Audio Service 08 May 2022 15:22	2493	3	08 May 2022 15:22 fastos
	PIONEER CDJ-400 SERVICE MANUAL emman 20 Apr 2022 (0) Audio Instructions 20 Apr 2022 19:22	942	0	20 Apr 2022 19:22 emman
	DENON RCD-N8 Damaged Power Supply: Standby Repair, ICE3BR1765J, ICE3BR0665J, RC Circuit Changes Fikszyn 31 Oct 2014 (41) FAQ 17 Mar 2022 12:23	54981	41	17 Mar 2022 12:23 Antek-S23
	Seeking Firmware for Onkyo TX-NR616 Receiver: Issues with HDMI, Sound Output, VSP & VMPU onkyoyoho 26 Mar 2021 (4) Beginners Audio 20 Feb 2022 14:16	3348	4	20 Feb 2022 14:16 onkyoyoho
	UNITRA ZRK M 3401 SD "Koncert" service manual/anleitung openreel 11 Oct 2018 (3) Looking for a Audio 17 Feb 2022 16:40	4053	3	17 Feb 2022 16:40 gabriel0
	0 Harman / Kardon AVR 430 - I'm looking for instructions bartoszszymanczyk 23 Jan 2022 (0) Looking for a Audio 23 Jan 2022 04:52	1014	0	23 Jan 2022 04:52 bartoszszymanczyk
	JBL TUNE 500bt Wireless Headphones: Connectivity Issues and Unresponsive Power Button Alex110 30 Aug 2020 (5) Beginners Audio 22 Jan 2022 10:51	45723	5	22 Jan 2022 10:51 Zigg

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Audio Service

Rules: Instructions for posting photos and pictures on the forum

0 Marshall Stanmore 1 Mainboard Missing Parts Identification: C36, D15, U5, D8, C95, IC Chip and misc

0 Behringer Europort MPA100BT: Seeking Service Manual for Battery Leak Repair

0 Wybór igły lub wkładki do Technics SL-BD20: Audio-Technica AT85EP vs AT81CP

0 Onkyo TX-SR707: Czy XD830K013DZKB4 jest kompatybilny z TMSD803K011AZKB?

0 Yamaha RX-V677 Firmware Flashing: EN29LV640 IC Version Error Fix

0 hello je cherche le schema pour receiver amstrad ex333

0 Seeking Harman Kardon AVR 645 EU Upgrade Version 4.04 File and DSB File

0 Philips Dcm3020/12 Firmware Issue: Radio Not Working After Downgrading v53 to v41

0 Harman / Kardon AVR 430 - I'm looking for instructions

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