Arcam Diva AVR-200 Service manual
AVR200
ARCAM
Service Manual
Issue 1.0
DiV A A VR200
Surround Sound Receiver
ARCAM
SERVICE MANUAL
AA
AA
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SURROUND SOUND RECEIVER
CONTENTS Page
SPECIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
DISASSEMBLY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
ADJUSTMENT POINTS DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
INSTRUMENT SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
ALIGNMENT PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9
IMPORTANT NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
PCB LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-20
SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21-40
IC BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41-49
ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40-67
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POWER AMPLIFIER AND PREAMPLIFIER SECTION
Rated distortion (THD 20Hz-20 kHz FL/C/FR) ≤ 0.08%
(THD 20Hz-20 kHz SL/SR) ≤ 0.3%
Input Sensitivity (ref. 8 ohms, 1 kHz) 180+/-30 mV
S/N Ratio (A-wtd, 1KHz, 1W, 8 ohm) ≥ -75 dB
(A-wtd, 1KHz, 80W, 8 ohm) FL/FR/C ≥ 92 dB
SL/SR ≥ -90 dB
Frequency Response (20 Hz - 20 kHz) 0 ± 0.8 dB
Channel Balance (1 dB to -40 dB, 1 kHz) ≤ 2 dB
(-41 dB to -50 dB, 1 kHz) ≤ 3 dB
Audio muting at 1kHz ≥ 53 dB
Headphone O/P in 0.1%, 600 ohm load, CD in 500mV, 1 kHz ≥ 10V
Subwoofer out, 500mV in (THD at 2V O/P, 100 Hz) ≥ 0.5%
(S/N at 2V O/P, 100 Hz) ≥ 80 dB
Crosstalk (2V input, 10W, 1 kHz) > -68 dB
Continuous average power output (L/R/C RL/RR 8ohms) 80 W
Controls
Bass (at 500mV in, 1W out, 100 Hz) ±9 dB
Treble (at 500mV in, 1W out, 10 kHz) ±9 dB
SURROUND SECTION
Channel separation
I/p mode : L, R : 1V in, 1 kHz, Ch R, L ≥ 45 dB
: o/p at unexpected, 1 kHz, Ch C ≥ 35 dB
I/p mode : L= -R : 1V in, 1 kHz, Ch R, L ≥ 28 dB
: o/p at unexpected, 1 kHz, Ch C ≥ 30 dB
I/p mode : L= R : 1V in, 1 kHz, Ch R, L ≥ 45 dB
: o/p at unexpected, 1 kHz, Ch SL, SR ≥ 30 dB
Frequency Response
I/p mode : L, R : 1V in, 1W, Ch R, L 40Hz 0 ± 1.5 dB
20kHz 0 ± 0.8 dB
I/p mode : L= R : 1V in, 1W, Ch C 300Hz 0 ± 0.8 dB
20kHz 0 ± 0.8 dB
I/p mode : L= -R : 1V in, 1W, Ch SL, SR 30Hz 0 ± 1.0 dB
6.5kHz -3 ± 1.0 dB
S/N Ratio ( 200mV in, 1, A-WTD w/ 1k termination)
I/p mode : L, R : 1 kHz, Ch L, R ≥ 65 dB
I/p mode : L=R : 1 kHz, Ch C ≥ 65 dB
I/p mode : L=-R : 1 kHz, Ch SL, SR ≥ 65 dB
THD (2.2V in, 1W, w/ 80 kHz LPF, 1 kHz) ≤ 0.2%
AC-3/DTS SECTION
Frequency Response
FL, FR, C, SL, SR: 200Hz 0 ± 0.8 dB
20kHz 0 ± 0.8 dB
Distortion 1W all channels 0.08%
S/N 1 W ( CCIR/ARM, 200 Hz NOTCH & 400 Hz HPF) ≥ 85 dB
PROLOGIC II
AUDIO
Center Width Control (Use track 2 from PLII Audio Test CD ver1.0)
SPECIFICATION
Step L/R C
0 ≤-31dB 0.0dB
1 -12dB -0.6dB
2 -9.6dB -1.1dB
3 -7.6dB -1.8dB
4 -4.8dB -4.6dB
Step L/R C
5 -4.1dB -6.6dB
6 -3.6dB -9.0dB
7 -3.0dB ≤-31dB
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Dimension Control (Use track 1 and 3 from PLII Audio Test CD ver1.0)
AM TUNER SECTION
Input level is expressed as the reading in open-circuit
of 75-ohm source impedance signal generator
Usable sensitivity (999/1000kHz) ≤ 30 dBµ
S/N Ratio (5mV in) ≥ 38 dB
THD (5mV in) ≤ 3%
IF Rejection (450 kHz) ≥ 36 dB
Image Rejection (F+2xIF) ≥ 28 dB
Selectivity ≥ 17 dB
Output 130+/- 20mV
Loop sensitivity (20dB S/N)
999/1000 kHz ≤ 66 dB
603/600 kHz ≤ 66 dB
1404/1400 kHz ≤ 66 dB
Frequency response (100 - 2.3 kHz, 5mV) ± 6 dB
FM TUNER SECTION
*C *AH
Input level is expressed as the reading in open-circuit
of 75-ohm source impedance signal generator
Usable Sensitivity ( 98 MHz) ≤ 15 dBµ ≤ 15 dBµ
Signal / Noise Ratio Mono ≥ 72 dB ≥ 72 dB
(60 dBµ, IHF wtd) Stereo ≥ 66 dB ≥ 66 dB
Frequency Response (20 Hz - 15 kHz, 60 dBµ) 0 ± 1.5 dB 0 ± 1.5 dB
Channel Separation (60 dBµ) 100 Hz ≥ 30 dB ≥ 30dB
1 kHz ≥ 38 dB ≥ 38 dB
10 kHz ≥ 30 dB ≥ 30 dB
Alternate Channel Selectivity
(40 dBµ, ±400 kHz) ≥ 60 dB ≥ 45 dB
Capture Ratio (40 dBµ) ≤ 3 dB ≤ 3 dB
AM Suppression
(60 dBµ, 100% Mod.FM, 30% Mod.AM) ≥ 48 dB ≥ 48 dB
Image Rejection (119.4 MHz) ≥ 85 db ≥ 40 dB
I.F. Rejection ( 10.7 MHz) ≥ 78 dB ≥ 65 dB
Pilot Suppression (60 dBµ) ≥ 60 dB ≥ 60 dB
THD (60 dBµ, L=R 75 kHz for AH, 40 kHz Dev for C)
Mono ≤ 0.25% ≤ 0.25%
Stereo ≤ 0.35% ≤ 0.35%
Auto-Search Sensitivity On ≥ 24 dBµ ≥ 24 dBµ
Off ≤ 15 dBµ ≤ 15 dBµ
RDS decode Sensitivity ≤ 26 dBµ ≤ 26 dBµ
PHYSICAL
SPECIFICATIONS
Dimensions (Width x Height x Depth) 422 x 132 x 290mm
Net weight 14kg (31 lbs)
Shipping weight 16.7kg (37 lbs)
Step C SL SR
-3 ≤-31dB -7.8dB ≤-31dB
-2 ≤-31dB -11.5dB ≤-31dB
-1 ≤-31dB -19.5dB ≤-31dB
0 ≤-30dB ≤-31dB ≤-31dB
Step C SL SR
1 -20.4dB ≤-31dB ≤-31dB
2 -14.0dB ≤-31dB ≤-31dB
3-11.5dB ≤-31dB ≤-31dB
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DISASSEMBLY INSTRUCTIONS
1. Remove machine screws M 4.0 x 6.0 ( 1 to 6 ) from the side panels.
Remove tapping screw 3.0 x 8.5 ( 7 )from the back panel.
Refer to Figure No.1.
Figure No.1
2. Pull both sides of the TOP COVER slightly outwards 8 and tilt approx. 35˚ and then remove
in the direction as indicated by the arrow 9 . Refer to Figure No.2.
Figure No.2.
7
6
5
1
3
2
4
9
8
8
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WIRING DIAGRAM
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COAXIAL x3
OPTICAL x2
4053
74LS157
M624476FP
Com-Video
Trigger IN
POWER DOWN
Detect Pin.
For SPK off,
Mute ON, VFD off.
BLOCK DIAGRAM
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ADJUSTMENT POINTS DIAGRAM
1. TUNER
2. IDLE CURRENT - Front Amplifier & Surround Amplifier Board
OSC RF
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INSTRUMENT SETUP
1. FM MEASUREMENT
Fig. 1
Fig. 2
2. RDS MEASUREMENT
Fig. 3
3. AM MEASUREMENT
Fig. 4
FM
SIGNAL
GENERATOR
ANTENNA
TERMINAL
OUTPUT
TERMINAL
DISTORTION
ANALYZER
DISTORTION
ANALYZER
AC
VOLTMETER
OSCILLOSCOPE
AC
VOLTMETER
OR
OSCILLOSCOPE
AC
VOLTMETER
OR
OSCILLOSCOPE
OUTPUT
TERMINAL
OUTPUT
TERMINAL
L
R
ANTENNA
TERMINAL
ANTENNA
TERMINAL
ANTENNA
TERMINAL
AM LOOP
ANTENNA
(Accessory)
AM LOOP
ANTENNA
60cm
DIGITAL
MILLIVOLT
METER
VT-J914
FM
SIGNAL
GENERATOR
AM
SIGNAL
GENERATOR
FM
SIGNAL
GENERATOR
RDS
GENERATOR
FM
STEREO
GENERATOR
P-901
DC
MILLIVOLT
METER
UNIT
UNIT
UNIT
UNIT
ALIGNMENT PROCEDURES
AMPLIFIER SECTION
Idle Current
Step Item Connection Adjustment Adjust for
1 Front Left Channel Voltmeter to P502 on Front Amp Board R574 2mV±0.2mV
2 Front Right Channel Voltmeter to P501 on Front Amp Board R573 2mV±0.2mV
3 Center Channel Voltmeter to P503 on Front Amp Board R599 2mV±0.2mV
4 Rear Left Channel Voltmeter to JP801 on Surround Amplifier Board R867 2mV±0.2mV
(PCB N0901C-AMP2)
5 Rear Right Channel Voltmeter to JP802 on Surround Amplifier Board R868 2mV±0.2mV
(PCB N091C-AMP2)
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FM/RDS SECTION
- FM mono: 1kHz, 75kHz devi., 60dB/µV
- FM stereo: 1kHz, 67.5kHz devi., 60dB/µV
Pilot signal 19kHz 7.5kHz devi.
OUTPUTS
- Connect the non-inductive type resistor of 8 ohms to the all speaker terminals unless otherwise noted.
Item
FM
IF/RF
Stereo
Distortion
Stereo
Separation
Muting
Level
Signal
output
Step
1
DC voltmeter L941
0±100mV
3
Distortion
analyzer
Distortion
analyzer
Oscilloscope
Oscilloscope
L942
R956
R941
Minimum
Minimum
2 AC voltmeter
IFT on the
front end
IFT on the
front end
Maximum
Maximum
separation
Connection
of instrument
Fig.1 –
–
Fig.2
Fig.2
Fig.1
Channel L
or R 1kHz
99.0MHz
1kHz 75kHz devi.
65dBf (60dB)
99.0MHz Ext.
mod. 65dBf
(60dB)
FM SG
output
Stereo modulator output
Tuning
frequency
99.0MHz
99.0MHz
Channel L
or R 1kHz
99.0MHz Ext.
mod. 65dBf
(60dB)
99.0MHz Ext.
mod.65dBf(60dB)
RDS 2% MOD
99.0MHz 18dB
99.0MHz
99.0MHz
RDS
–
–
–
–
Fig.3
99.0MHz
Output
indicator
Adjustment
point
Adjust
for
Remarks
FM MUTE/MODE
switch: ON/AUTO
Repeat the steps
1 to 3 until no further adjustment is
necessary.
FM MUTE/MODE
switch: ON/AUTO
Don’t turn more
than +/-180˚
Repeat stereo
distortion and
stereo separation
alignment until
THD at minimum
and separation at
maximum.
Decode the RDSProgram Station.
AM SECTION
AM Modulation: 400Hz, 30%
Step
1–
2
3
522kHz
or
531kHz
603kHz
999kHz
600kHz
400Hz 30% mod.
60dB/m
AM SG
output
Tuning
frequency
Output
indicator
Adjustment
point
600kHz
400Hz 30% mod.
60dB/m
AC
voltmeter
AC
voltmeter
Digital
DC
voltmeter
L972
OSC coil
on RF
block L971
RF coil
on RF
block L971
Adjust
for
1.3±0.2V (522kHz)
1.35±0.2V (531kHz)
Maximum
Maximum
IMPORTANT NOTES
1. Show the software version
Press “DISPLAY”, “5.1 INPUT” and “VIDEO 4”.
2. Toggle between PAL and NTSC
Press “MEMORY” and “VIDEO 1”.
3. Light up all the icon on the VFL.
Press “DISPLAY”, “5.1 INPUT” and “VIDEO 1”.
4. Clear all tuner presets
Press “5.1 INPUT” and “VIDEO 1”.
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PCB LAYOUT
AUDIO BOARD
COMPONENT VIDEO BOARD
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AC-3 BOARD - Component Side
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AC-3 BOARD - Solder Side
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AMP1 BOARD
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AMP2 BOARD
SPEAKER BOARD
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KEY BOARD - Component Side KEY BOARD - Solder Side
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MAIN BOARD
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MULTI CHANNEL BOARD
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TUNER BOARD
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