For U.S.A., Canada, Europe,
Asia, China, Hong Kong &
Taiwan R.O.C. model
SERVICE MANUAL
Hi-Fi Component
MODEL
AVR-1802/882
AV SURROUND RECEIVER
Some illustrations using in this service manual are slightly different from the actual set.
14-14, AKASAKA 4-CHOME, MINATO-KU, TOKYO 107-8011 JAPAN
Telephone: 03 (3584) 8111
X0117 1174 NC 0109
AVR-1802/882
SAFETY PRECAUTIONS
The following check should be performed for the continued protection of the customer and service technician.
LEAKAGE CURRENT CHECK
Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to
chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power cord is less than 460 kohms, the unit is defective.
SPECIFICATIONS
Audio section
Power amplifier
Rated output:Front:80W + 80W(8Ω/ohms, 20Hz ~20kHz with 0.08% T.H.D)
Center:80W(8Ω/ohms, 20Hz ~20kHz with 0.08% T.H.D)
Surround:80W + 80W(8Ω/ohms, 20Hz ~20kHz with 0.08% T.H.D)
Output terminals:Front:A or B 6 to 16Ω/ohms
Center/Surround: 6 to 16Ω/ohms
Analog
LINE input - PRE OUT
Input Sensitivity/input impedance:200mV/47kΩ/kohms
Frequency response:10Hz~100kHz: + 1, −3dB (TONE DEFEAT ON)
S/N ratio:100dB (IHF-A weighted) (TONE DEFEAT ON)
115W + 115W (6Ω/ohms, 1kHz with 0.7% T.H.D) (U.S.A., Canada & Europe Models)
130W + 130W (6Ω/ohms, EIAJ) (Asia Model)
115W(6Ω/ohms, 1kHz with 0.7% T.H.D) (U.S.A., Canada & Europe Models)
130W(6Ω/ohms, EIAJ) (Asia Model)
115W + 115W (6Ω/ohms, 1kHz with 0.7% T.H.D) (U.S.A., Canada & Europe Models)
130W + 130W (6Ω/ohms, EIAJ) (Asia Model)
A + B 12 to 16Ω/ohms
Video section
Standard video jacks
Input/output level and impedance:1Vp-p, 75Ω/ohms
Frequency response:5Hz~10MHz +1, −3dB
S-video jacks
Input/output level and impedance:Y (brightness) signal 1Vp-p, 75Ω/ohms
Frequency response:5Hz~10MHz +1, −3dB
Tuner section
Receiving range:[FM] (note: µV at 75Ω/ohms, 0dBf =1x10
U.S.A. & Canada Models87.50MHz~107.90MHz520kHz~1710kHz
Europe &
Asia (for China) Models87.50MHz~108.00MHz522kHz~1611kHz
Asia (for Multiple voltage) Models87.50MHz~107.90MHz (0.2MHz steps)520kHz~1710kHz (10kHz steps)
(5) Within 2 minutes after the power on, turn VR101 clockwise (
DC.
(6) After 10 minutes from the preset above, turn VR101 to set the voltage to 2.5 mV ±0.5 mV DC.
(7) Adjust the Variable Resistors of other channels in the same way.
min.)
) to adjust the TEST POINT voltage to 1.5 mV ±0.5 mV
5
8
76
5
4
3
2
1
A
B
C
D
E
AVR-1802/882
6
LEVEL DIAGRAM
SEMICONDUCTORS
ICs
CS493263-CL
(AU: IC812)
A0,SCCLK
DATA7,EMAD7,GPIO7
DATA6,EMAD6,GPIO6
DATA5,EMAD5,GPIO5
DATA4,EMAD4,GPIO4
DGND2
DATA3,EMAD3,GPIO3
DATA2,EMAD2,GPIO2
DATA1,EMAD1,GPIO1
DATA0,EMAD0,GPIO0
AVR-1802/882
A1,SCDIN
RD,R/W,EMOE,GPIO11
WR,DS,EMWR,GPIO10
AUDATA3,XMT958
DGND1
VD1
MCLK
SCLK
LRCLK
AUDATA0
AUDATA1
44
56
21 22
ABOOT,INTREQ
1234
SDATAN1
EXTMEM,GPIO8
7
8
9
10
11
VD2
12
13
14
15
16
17
18 19 20
CS
404142
43
39
AUDATA2
38
DC
37
DD
RESET
36
AGND
35
34
VA
FILT1
33
FILT2
32
CLKSEL
31
CLKIN
30
CMPREQ,LRCLKN2
29
282726252423
VD3
DGND3
LRCLKN1
CMPCLK,SCLKN2
SCLKN1,STCCLK2
CS493263-CL Terminal Function
Pin
No.
Pin Name
SCDIO,SCDOUT,PSEL,GPIO9
CMPDAT,SDATAN2,RCV958
Function
1VD1Digital positive supply
2DGND1Digital supply ground
3AUDATA3, XMT958SPDIF transmitter output, Digital audio output 3
4WR, DS, EMWR, GPIO10Host write strobe or host data strobe or external memory write enable or general purpose input & output number 10
5RD, R/W, EMOE, GPIO11
Host parallel output enable or host parallel R/W or external memory output enable or general purpose input & output number11
6A1, SCDINHost address bit one or SPI serial control data input
7A0, SCCLKHost parallel address bit zero or serial control port clock
8DATA7, EMAD7, GPIO7
9DATA6, EMAD6, GPIO6
10DATA5, EMAD5, GPIO5
11DATA4, EMAD4, GPIO4
12VD2Digital positive supply
13DGND2Digital supply ground
14DATA3, EMAD3, GPIO3
15DATA2, EMAD2, GPIO2
16DATA1, EMAD1, GPIO1
17DATA0, EMAD0, GPIO0
18CSHost parallel chip select, host serial SPI chip select
19SCDIO, SCDOUT, PSEL, GPIO9Serial control port data input and output, parallel port type select
20INTREQ, ABOOTControl port interrupt request, automatic boot enable
21EXTMEM, GPIO8External memory chip select or general purpose input & output number 8
22SDATAN1PCM audio data input number one
23VD3Digital positive supply
24DGND3Digital supply ground
25SCLKN1, STCCLK2PCM audio input bit clock
26LRCLKN1PCM audio input sample rate clock
27CMPDAT, SDATAN2, RCV958PCM audio data input number two
28CMPCLK, SCLKN2PCM audio input bit clock
29CMPREQ, LRCLKN2PCM audio input sample rate clock
30CLKINMaster clock input
31CLKSELDSP clock select
32FILT2Phase locked loop filter
33FILT1Phase locked loop filter
34VAAnalog positive supply
35AGNDAnalog supply ground
36RESETMaster reset input
37DDReserved
38DCReserved
39AUDATA2Digital audio output 2
40AUDATA1Digital audio output 1
41AUDATA0Digital audio output 0
42LRCLKAudio output sample rate clock
43SCLKAudio output bit clock
44MCLKAudio master clock
7
AVR-1802/882
LC89055W (IC810)
LC89055W Terminal Function
Pin
No.
1DISELIData input terminal (select input pin of DIN0, DIN1)
2DOUTOInput bi-phase data through output terminal
3DIN0IAmp built-in coaxial/optical input correspond data input terminal
4DIN1IAmp built-in coaxial/optical input correspond data input terminal
5DIN2IOptical input correspond data input terminal
6DGNDDigital GND
7DVDDDigital power supply
8RIVCO gain control input terminal
9VINIVCO free-run frequency setting input terminal
10 LPFOPLL loop filter setting terminal
11 AVDDAnalog power supply
12 AGNDAnalog GND
13 CKOUTOClock output terminal (256fs, 384fs, 512fs, X’tal osc., VCO free-run osc.)
14 BCKO64fs clock output terminal
15 LRCKOfs clock output terminal (L: Rch, H: Lch, I2S: Reverse)
16 DATAOOData output terminal
17 XSTATEOInput data detecting result output terminal
18 DGNDDigital GND
19 DVDDDigital power supply
20 XMCKOX’tal osc. clock output terminal (24.576MHz or 12.288MHz)
21 XOUTOX’tal osc. connection output terminal
22 XINIX’tal osc. connection input terminal, external signal input possible (24.576MHz or 12.288MHz)
23 EMPHAO Emphasis information output terminal of channel status
24 AUDIOOBit1 output terminal of channel status
25 CSFLAGOTop 40bit revise flag output terminal of channel status
26 F0/P0/C0OInput fs cal. sig. out/data type out/input word inf. output terminal
27 F1/P1/C1OInput fs cal. sig. out/data type out/input word inf. output terminal
28 F2/P2/C2OInput fs cal. sig. out/data type out/input word inf. output terminal
29 VF/P3/C3OValidity flag out/data type out/input word inf. output terminal
30 DVDDDigital power supply
31 DGNDDigital GND
32 AUTOONon PCM burst data transfer detect sig. output terminal
33 BPSYNCONon PCM burst data preamble Pa, Pb, Pc, Pd sync sig. output terminal
34 ERROROPLL lock error, data error flag output terminal
35 DOOCPU/IFD read data output terminal
36 DIICPU I/F write data input terminal
37 CEICPU I/F chip enable input terminal
38 CLICPU I/F chip enable input terminal
39 XSELIFrequency select input pin of XIN X’tal osc. (24.576MHz or 12.288MHz)
40 MODE0IMode setting input terminal
41 MODE1IMode setting input terminal
42 DGNDDigital GND
43 DVDDDigital power supply
44 DOSEL0IData output format select input terminal
45 DOSEL1IData output format select input terminal
46 CKSEL0IOutput clock select input terminal
47 CKSEL1IOutput clock select input terminal
48 XMODEIReset input terminal
For latch-up countermeasure, set digital (DVDD) and analog (AVDD) power on/off in the same timing.
Pin NameFunctionI/O
8
AK4527BVQ (IC813)
AVR-1802/882
SDOS
SMUTE
BI CK
LRCK
SDT I 1
SDT I 2
SDT I 3
SDT O
DAUX
DF S
I2C
L0OP1
L0OP0/SDA/CDTI
DI F 0/ C SN
P/ S
MCL K
DI F1/ SCL / CCL K
39
38
13 14
NC
41
AK4527BVQ
15
DZ FE
TV DD
40
Top View
16 17 18
PDN
DV SS
DV DD
444342
1
2
3
4
5
6
7
8
9
10
11
12
DZF1
AV SS
37
36
192021
NC
TST
VREFH
AV DD
VCOM
35
34
33
DZ F 2/ OV F
32
RI N +
31
RI N –
30
LIN+
29
LIN–
28
ROUT1
27
LOUT1
26
ROUT2
25
LOUT2
24
ROUT3
23
LOUT3
22
CAD1
ADI F
CAD0
AK4527BVQ Terminal Function
Pin
Pin NameI/OFunction
No.
1SDOSISDTO source select pin, L: Internal ADC output, H: DAUX input
2I2CISerial control mode select pin, L: 3-core serial, H: I2C bus
3SMUTEISoft mute pin, H: Soft mute start, L: Release
4BICKIAudio serial data clock pin
5LRCKIInput channel clock pin
6SDTI1IDAC1 audio serial data input pin
7SDTI2IDAC2 audio serial data input pin
8SDTI3IDAC3 audio serial data input pin
9SDTOO Audio serial data output pin
10 DAUXIAuxiliary audio serial data input pin
11 DFSIDouble speed sampling mode pin, L: Normal, H: Double
12 NC No Connect, No internal bonding
13 DZFEIZero input detect enable pin
14 TVDD Power pin for output buffer, 2.7V~5.5V
15 DVDD Digital power pin, 4.5V~5.5V
16 DVss Digital GND pin, 0V
17 PDNIPower down & reset pin, L: Powered-down and register initialized, Reset with PDN when switching CAD0-1
18 TSTITest pin, connected to DVSS
19 NC No Connect, No internal bonding
20 ADIFIAnalog Input Format Select pin
21 CAD1IChip address-1 pin
22 CAD0IChip address-0 pin
23 LOUT3O DAC3L channel analog out pin
24 ROUT3O DAC3R channel analog out pin
25 LOUT2O DAC2L channel analog out pin
26 ROUT2O DAC2R channel analog out pin
27 LOUT1O DAC1L channel analog out pin
28 ROUT1O DAC1R channel analog out pin
29 LIN-IL-ch analog inverted input pin
30 LIN+IL-ch analog non-inverted input pin
31 RIN-IR-ch analog inverted input pin
32 RIN+IR-ch analog non-inverted input pin
33 DZF2/OVFO 0 input detect 2 pin/Analog input overflow detect pin
34 VCOMO Common V-out pin, AVDD/2, connect large capacitor to avoid noise
35 VREFHIRef. V input pin, AVDD
36 AVDD Analog GND pin, 4.5V~5.5V
37 AVss Analog GND pin, 0V
38 DZF1O0 input detect pin, H: Input data of G1 is 8192 times “0” in a raw or RSTN bit “0”, L: When P/S= “0”
39 MCLKIMaster clock input pin
40 P/SIParallel/Serial select pin, L: Serial control
DIF0IAudio data I/F format 0 pin (parallel control)
41
CSNIChip select pin (3-wire serial control), connect to DVDD when I
DIFIIAudio data I/F format 1 pin (parallel control)
42
SCL/CCLKIControl data clock pin (serial control), I
LOOP0ILoop back mode 0 pin (parallel control), effects digital loop back ADC to all DAC
43
SDA/CDTII/O Control data input pin (serial control), I
44 LOOP1ILoop back mode 1 pin, from SDT1 to all DAC
2
C bus control
9
AVR-1802/882
1
2
3
4
5
6
7
8
18
17
16
15
14
13
12
11
Q3
VDD
OE
Q7
Q8
Q11
Q10
Q9
Q6
VSS
DATA
CLOCK
LCK
Q0
Q1
Q2
9
10
Q4
Q5
CONTROL CIRCUIT
12-bit SHIFT RESISTER
12-bit STRAGE RESISTER
OUTPUT BUFFER (OPEN DRAIN)
BU2090F (IC302, 602)
1
MM74LCX244 (IC818,819)
RC1117S25T (IC820)
RC1117S33ST (IC811)
2
3
2
ADJ/GND
OUT
IN
MM74HC151 (IC832)
V
OUT
FRONT VIEW
LA1266 (IC402)
10
4
1
3
8
19
15
17
18
14
21
22
5
11
2
6
7
23
24
16
12
20
9
13
20
19
18
17
16
15
14
13
12
9
8
7
5
6
1
21
LA3401 (IC403)
22
!"# !"
$
%
2
3
4
%
10
11
LC72131 (IC401)
#
&!
&
#
#
'#(
)
#*
*
#)
(
#'
#
#&
#!##
#
&
'
#
&
++
TDA7330BD (IC202)
TOP VIEW
POR
MUXIN
TM
V
REF
FSEL
COMP
T2
FILOUT
V
CC
GND
ARI
T1
QUAL
T3
RDDA
T4
RDCL
OSCOUT
T57
OSCIN
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
124
1213
1
2
3
4
5
6
7
8
20
19
18
16
15
14
13
I3
VCC
OE2
O2
I5
O0
I4
O1
I6
OE
I0
O4
I1
O5
I2
O6
912
O7
O3
10
11
GND
I7
TOP VIEW
D4
D5
D6
D7
A
B
D2
D1
D0
Y
W
S
D3
C
4
5
6
7
A
B
C
Vcc
15
14
13
12
11
10
9
16
2
3
4
5
6
7
8
1
2
1
0
Y
W
ST ROBE
GND
3
DATA
INPUTS
OUTPUTS
DATA
INPUTS
DATA
SELECT
TOP VIEW
17
10
AVR-1802/882
LC75721E (IC301)
G7 G8G9
G10
G11
AA8/G12
AA7/G13
AA6/G14
AA5/G15
AA4/G16
AA3
AA2
4833
49
DI
CL
CE
RES
V
DD
OSCI
OSCO
Vss
TEST
V
FL
G1
G2
G3
G4
G5
G6
64
AM 1
AM 2
AM 3
AM 4
AM 5
AM 6
AM 7
AM 8
AM 9
AM 10
AM 11
AM 12
BA7626 (IC601, 651, 652)
Monitor OUT
GND
IN5
GND
IN4
CTL E
IN3
CTL D
1
2
3
4
5
6
7
8
LOGIC
LOGIC
16
15
6dB
14
13
12
6dB
11
10
9
AA1
AM35
AM34
AM 13
AM 14
IN1
CTL A
V OUT1
Vcc
IN2
CTL B
V OUT2
CTL C
KIC9164AN (IC203)
LC75721E Terminal Function
AM33
32
AM 17
AM 18
AM 19
AM 20
AM 21
AM 22
AM 23
AM 24
AM 25
AM 26
AM 27
AM 28
AM 29
AM 30
AM 31
AM 32
17
161
AM 15
AM 16
ABE
LL
HL
LH
Symbol
DD
V
V
SS
V
FL
DI
CL
CE
OSCI
OSCO
RES
AM1~AM35
AA1~AA3
AA4/G16
AA5/G15
AA6/G14
AA7/G13
AA8/G12
G1~G11
TEST
MONITOR OUT
*
*
*
Power terminal +5V
Power terminal GND
Power terminal FL drive
Serial data transfer terminal
DI: Data
CL: Clock
CE: Chip enable
External CR connecting terminal
System reset terminal
Anode output terminal
Anode/Grid output terminal
Grid output terminal
LSI test terminal
IN 1
IN 2
IN 3
HH LIN 4
HHHIN 5
Note 1: * mark means that feasible for either H or L.
Note 2: Each input terminal is provided with sink chip clamp (BA7625).
Each input terminal takes 20kohm at the end (BA7626).