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Arcam DiVA AVR250 - User Manual

Arcam DiVA AVR250
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DiVA
Service
Manual
AVR250 AV Receiver
Issue 1.0
ARCAM
ARCAM
Bringing music & movies to life
Bringing music & movies to life
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Arcam DiVA AVR250 Specifications

General IconGeneral
Amplifier TypeClass AB
Power Output100 W per channel
Channels7
Total Harmonic Distortion< 0.05%
Inputs Component3
Outputs Component1
Outputs CompositeYes
Outputs Subwoofer1
Weight11.5 kg
Input Impedance47 kOhm
Input Sensitivity200 mV
Signal-To-Noise Ratio> 100 dB
Tuner BandsAM/FM
Digital Sound Processor (DSP)Yes
HDMI SwitchingYes
Outputs 7.1 Pre-outsYes
Frequency Response20Hz - 20kHz (±0.5dB)
Response Bandwidth20 - 20000 Hz
Surround System Class7.1
Surround Sound FormatsDolby Digital, DTS, Dolby Pro Logic II
Amplifier Output Details100W per channel (8 ohms, 20Hz - 20kHz, <0.02% THD)
THD0.02 %

Summary

Disassembly Instructions

Adjustment Points Diagram - AMP1 Board

Instrument Setup

FM Measurement

Setup for FM signal generator and distortion analyzer measurement.

RDS Measurement

Setup for RDS generator and FM signal generator measurement.

AM Measurement

Setup for AM loop antenna and signal generator measurement.

Alignment Procedures - Amplifier Section

FM;RDS Section

AM Section

Video Board Section

Important Notes

Wiring Diagram

PCB Layout - KEY Board

AMP2 Board Component Side

AMP2 Board Copper Side

AUDIO Board Component Side

CON1 Board Component Side

CON1 Board Copper Side

SW Board Component Side

SW Board Copper Side

AUDIO Board Copper Side

VOL Board

PHONE Board

COM Board Component Side

COM Board Copper Side

POWER Board Component Side

POWER Board Copper Side

LED Board Component Side

LED Board Copper Side

RECT Board Component Side

RECT Board Copper Side

CON2 Board Component Side

CON2 Board Copper Side

PSU Board

DSP Board Component Side

DSP Board Copper Side

MAIN Board

TUNE Board

MUTI Board Copper Side

VIDEO Board Component Side

PMAIN Board Component Side

AMP1 Board Component Side

MUTI Board Component Side

VIDEO Board Copper Side

RS232 Board Component Side

Schematic Diagram - TUNER

OSD

MULTI

MAIN

DSP

AMP1

P-MAIN & PSU

S-VIDEO

RS232

KEY

COM VIDEO

AUDIO

AMP2

IC Block Diagram

Audio Board U3001: TC9273 N-004

Block diagram for Audio Board IC TC9273N-004.

Audio Board U3006: TC9273 N

Block diagram for Audio Board IC TC9273N.

Audio Board U3005, U3007, U3008, U3010: NJM5532 M

Block diagram for Audio Board ICs NJM5532M.

Com-Video Board U201, U202, U204: LT1675 CGN

Block diagram for Com-Video Board ICs LT1675CGN.

Com-Video Board U203: LT1675 CS8-1

Block diagram for Com-Video Board IC LT1675CS8-1.

DSP Board U104: 74 HC245

Block diagram for DSP Board IC 74HC245.

DSP Board U102, U105: 74 HCU04

Block diagram for DSP Board ICs 74HCU04.

DSP Board U107: K4 S161622 H

DSP Board U109: 74 HC151

DSP Board U108: SN74 AC32

Key Board U1002: AT89 S52

Main Board U101: AT89 S52

Main Board U102: P89 C669 FA

Main Board U103: 24 C08

Multi-Ch Board U406-U417: NJM5532 M

RS232 Board U204: MAX232 D

Multi-Ch Board U401: WM8770

Tuner Board U901: LA1837

Tuner Board U902: LC72723 M

Tuner Board U903: LC7218

Video Board U801, U803, U804, U808, U809, U812, U818: BA7625

Video Board U802: LM1881

Video Board U813: TA1270 BF

Video Board U806, U807, U811, U814-U817, U821: BA7623

Video Board U819, U820, U823: TK15420 M

Video Board U810: LC74763-9012

Video Board U822: TA8772 AN

Video Board U805: TC90 A69

Electronics Part List

Exploded View

Exploded View Parts List

Service Parts Assembly

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