For U.S.A., Canada, Europe, U.K.,
Australia, Asia, China, Hong Kong,
Taiwan R.O.C. & Korea model
SERVICE MANUAL
Hi-Fi Component
MODEL
AVR-1603/683
AV SURROUND RECEIVER
Some illustrations using in this service manual are slightly different from the actual set.
16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN
Telephone: 03 (3837) 5321
X0152 NC 0209
AVR-1603/683
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, mak e 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 B6 to 16Ω/ohms
LINE input - SPEAKER OUT
Input sensitivity/input impedance:
Frequency response:10Hz~100kHz: +1, −3dB (TONE DEFEAT ON)
S/N ratio:98dB (IHF-A weighted)(TONE DEFEAT ON)
Center/Surround:6 to 16Ω/ohms
200mV/47kΩ/kohms
70W+70W
110W+110W (6Ω/ohms, 1kHz with 0.7% T.H.D )
100W+100W (6Ω/ohms, 1kHz with 0.7% T.H.D ) (Europe, U.K. & Australia Models)
110W+110W (6Ω/ohms, EIAJ ) (Asia Model)
70W
110W(6Ω/ohms, 1kHz with 0.7% T.H.D )
100W(6Ω/ohms, 1kHz with 0.7% T.H.D ) (Europe, U.K. & Australia Models)
110W(6Ω/ohms, EIAJ ) (Asia Model)
70W+70W
110W+110W (6Ω/ohms, 1kHz with 0.7% T.H.D )
100W+100W (6Ω/ohms, 1kHz with 0.7% T.H.D ) (Europe, U.K. & Australia Models)
110W+110W (6Ω/ohms, EIAJ ) (Asia Model)
A+B12 to 16Ω/ohms
(8Ω/ohms, 20Hz~20kHz with 0.08% T.H.D ) (Europe, U.K., Australia & Asia)
(U.S.A., & Canada Models)
(8Ω/ohms, 20Hz~20kHz with 0.08% T.H.D ) (Europe, U.K. & Australia & Asia)
(U.S.A., & Canada Models)
(8Ω/ohms, 20Hz~20kHz with 0.08% T.H.D ) (Europe, U.K. & Australia & Asia)
(U.S.A., & Canada Models)
(U.S.A., & Canada Models)
(U.S.A., & Canada Models)
(U.S.A., & Canada Models)
Video Section
Standard video jacks
Input/output level and impedance:
Frequency response:5Hz~10MHz +1, −3dB
* For purposes of improvement, specifications and design are subject to change without notice.
210W (Europe, U.K., Australia & Asia models)
AVR-1603/683
3
DISASSEMBLY
(Follow the procedure below in the reverse order when reassembling)
1. Top Cover
Remove 6 screws 1 and 3 screws 2, then detach the
Top Cover to the arrow direction.
AVR-1603/683
Top Cover
2. Front Panel
(1) Remove 4 screws 3 and 3 screws 4.
(2) Disconnect 3 connectors and FFC coming from the
Front Panel side.
(3) Disconnect the connector coming from the Trans., and
detach the Front Panel to the arrow direction.
1
1
Connector
4
4
2
Front Panel
3. Rear Panel
(1) Take off the AC cord 5 .
(2) Remove 32 screws 6 (36 pieces for U.S.A. & Canada models).
(3) Detach the Rear Panel to the arrow direction.
FFC
4
Connector
3
5
Rear Panel
6
6
6
(U.S.A. & Canada models)
6
6
4
LEVEL DIAGRAMS
AVR-1603/683
1
FRONT/CENTER/SURROUND
2
3
4
5
76
8
A
B
C
D
E
5
AVR-1603/683
1
SUB WOOFER
2
3
4
5
76
8
A
B
C
D
E
6
BLOCK DIAGRAM
AVR-1603/683
1
2
3
4
5
76
8
A
B
C
D
E
7
ADJUSTMENT
Tuner Section
CONNECTION DIAGRAM OF MEASURING INSTRUMENTS
FM
T402T403
R471
IC402
AVR-1603/683
STEREO
MODULATOR
VR402
TUNER B'D
FM ALIGNMENT
Alignment
Step
AM
Item
Center
1
Adjustment
2Distortion
3Repeat Steps 1 and 2
4Signal Level
Tuning
Frequency
Setting
98.1MHz
(98.0MHz)
98.1MHz
(98.0MHz)
98.1MHz
(98.0MHz)
TypeFrequency
FM SSG 98.1MHz60dBµ
FM SSG 98.1MHz60dBµ
FM SSG 98.1MHz20dBµOFF
InputOutputAdjustment
Input
Level
Modulation CouplingTypeConnect toPointsAdjust to
Mono
1kHz 100%
Mono
1kHz 100%
75ohm
Antenna
Terminal
Antenna
Terminal
Antenna
Terminal
FM SSG
Digital
Voltmeter
Digital
Voltmeter
Distortion
Meter
Light “TUNED” on
Terminal (L)
FL Display
R471T402± 50mV
Output
T403
VR402
Minimum
Distortion
+14
20
−10
dB
AM ALIGNMENT
Step
1Signal Level
Alignment
Item
FrequencyInput
999 (1000)
kHz
AM SSG
T402T403
R471
IC402
VR401
TUNER B’D
OutputAdjustment
TypeConnect toPointsAdjust to
VR401
Light “TUNED” on
FL Display
Remarks
SSG OUTPUT
74dBµ (EMF)
8
AVR-1603/683
Audio Section
Idling Current
Required measurement equipment : DC Voltmeter
Preparation
(1) Avoid direct blow from an air conditioner or an electric fan, and adjust the unit at normal room tempereture
15 °C ~ 30 °C (59 °F ~ 86 °F).
(2) Presetting
● POWER (Power sourse switch)→ OFF
● SPEAKER (Speaker terminal)→ No load (Do not connect speaker, dummy resistor, etc.)
Adjustment
(1) Remove top cover and set VR101, VR102, VR103, VR104, VR105 on Amp. Unit at full counterclockwise ( )
position.
(2) Connect DC Voltmeter to test points (FRONT-Lch: TP104, FRONT-Rch: TP105, CENTER ch: TP103,
SURROUND-Lch: TP101, SURROUND-Rch: TP102).
(3) Connect power cord to AC Line, and turn power switch "ON".
(4) Presetting.MASTER VOLUME : "---" counterclockwise (
MODE: 5CH STEREO
FUNCTION: CD
(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
13811K1MUTEOBD3811K1 CONTROL
23811K1CLKOBD3811K1 CONTROL
33811K1DATAOBD3811K1 CONTROL
4CDR/TAPEOCDR/TAPE INHIBIT
5VCROVCR INHIBIT
6ERR MUTEOERR MUTE
7ERR MUTE OFFOERR MUTE OFF
889057 AUDIOILC89057 CONTROL
989057 EMPHAILC89057 CONTROL
10 SW SUMOSW SUMMING CONTROL
11 M32 SDINIDATA INPUT FROM MELODY32
12 89057 SDINIDATA INPUT FROM LC89057
13 EPROM RESETOEPROM RESET
14 89057 RESETOLC89057 RESET
15 M32 CSOMELODY32 CS
16 M32 SDOUTOMELODY32 CONTROL DATA
17 89057 CEOLC89057 CE
18 89057 SDOUTOCONTROL DATA
19 89057 SCLKOCONTROL CLOCK
20 1837 RESETOCODEC RESET
21 NC
22 SW MUTEOSW MUTE
23 RELAY F-BOFRONT B RELAY
1,39DVDDDigital Power Supply. Connect to digital 5V supply.
2CLATCHILatch Input for Control Data
33CINISerial Control Input
4PD/RSTIPower-Down/Reset
5,10,16,24,30,35AGNDAnalog Ground
6,12,25,31NCNot connected
7,13,26,32OUTLxODACx Left Channel Output
8,14,27,33NCNot connected
9,15,28,34OUTRxODACx Right Channel Output
11,19,29AVDDAnalog Power Supply. Connect to analog 5V supply.
17FILTDFilter Capacitor Connection. Recommend 10µF/100nF.
18FILTRReference Filter Capacitor Connection. Recommended 10µF/100nF.
20ADCLNIADC Left Channel Negative Input
21ADCLPIADC Left Channel Positive Input
22ADCRNIADC Right Channel Negative Input
23ADCRPIADC Right Channel Positive Input
36M/SIADC Master/Slave Select
37DLRCLKI/ODAC LR Clock
38DBCLKI/ODAC Bit Clock
40,52DGNDDigital Ground
41-44DSDATAxIDACx Input Data (Left and Right Supply)
45ABCLKI/OADC Bit Clock
46ALRCLKI/OADC LR Clock
47MCLKIMaster Clock Input
48ADVDDDigital Output Driver Power Supply
49ASDATAOADC Serial Data Output
50COUTOOutput for Control Data
51CCLKIControl Clock Input for Control Data
1RXOUTOInput bi-phase select data output terminal
2RX0I5TTL compatible digital data input terminal
3RX1ICoaxial compatible amp built-in digital data input terminal
4RX2I5TTL compatible digital data input terminal
5RX3I5TTL compatible digital data input terminal
6DGND—Digital GND
7DVDD—Digital power
8RX4I5TTL compatible digital data input terminal
9RX5/VII5TTL compatible digital data/Validity flag input terminal for modulation
10RX6/UII5TTL compatible digital data/User data input terminal for modulation
11DVDD—Digital power for PLL
12DGND—Digital GND for PLL
13LPFOPLL loop filter connecting terminal
14AVDD—Analog power for PLL
15AGND—Analog GND for PLL
16RMCKORMCK clock output terminal (256fs, 512fs, XIN, VCO)
17RBCKO/IRBCK clock in/output terminal (64fs)
18DGND—Digital GND
19DVDD—Digital power
20RLRCKO/IRLRCK clock in/output terminal (fs)
21RDATAOSerial audio data output terminal
22SBCKOSBCK clock output terminal (32fs, 64fs, 128fs)
23SLRCKOSLRCK clock output terminal (fs/2, fs, 2fs)
24SDINI5Serial audio data input terminal
25DGND—Digital GND
26DVDD—Digital power
27XMCKOOsc. amp output terminal
Pin Name
I/O
Function
15
AVR-1603/683
Pin
No.
Pin NameI/O
Function
28XOUTOX’tal osc. connecting output terminal
29XINIX’tal osc. connection, external clock input terminal (24.576MHz or 12.288MHz)
30DVDD—Digital power
31DGND—Digital GND
32EMPHA/UOI/OEmphasis information/U-data output/Chip address setting terminal
33AUDIO/VOI/ONon-PCM detect/V-flag output/ Chip address setting terminal
34CKSTI/OClock switch transition period output/Demodulation master or slave function switching terminal
35INTI/OInterrupt output for µcom (Interrupt factor selectable)/Modulation or general I/O switching terminal
36RERROPLL lock error, data error flag output
37DOOµcom I/F, read out data output terminal (3-state)
38DII5µcom I/F, write data input terminal
39CEI5µcom I/F, chip enable input terminal
40CLI5µcom I/F, clock input terminal
41XMODEI5System reset input terminal
42DGND—Digital GND
43DVDD—Digital power
44TMCK/PIO0I/O256fs system clock input for modulation/General I/O in/output terminal
45TBCK/PIO1I/O64fs bit clock input for modulation/General I/O in/output terminal
46TLRCK/PIO2I/Ofs clock input for modulation/General I/O in/output terminal
47TDATA/PIO3I/OSerial audio data input for modulation/General I/O in/output terminal
48TXO/PIOENO/IModulation data output/ General I/O enable input terminal
* For latch-up countermeasure, perform each power supply ON/OFF in the same timing.
LC72131 (IC401)
1
XIN
CE
2
3
DI
4
CL
DO
5
BO1
6
BO2
7
BO3
8
BO4
9
IO1
10
LA1266 (IC402)
AM-IFFM-IFFM-IN
11
13
18
AM-IN
20
RFMIX
21
REG
22
BUFFER
124
XOUT
20
Vss
19
AOUT
18
17
AIN
PD
16
VDD
15
FMIN
14
1213
10
IF
IF
BUFFER
OSC
23
2
1
FM - IF
AM-IFDET
OSC
NARROW
BUFFER
S-METER
GND
24
4
3
5
6
7
Vcc
POST
Q.D.
AMP
AGC
S-METER
17
19
14
16
LED
DRIVER
12
9
15
8
LA3401 (IC403)
22
VOL
REG
SYMMETRICAL
REOCTANCE
CIRCUIT
MUTING
21
OSC
FF
AMIN
13
IO2
12
IFIN
11
FM AM CHANGE
20
PHASE
COMPARATOR
FF
Ro
19
FF
38kHz
DECODER
18
VCO STOP
38kHz 90°
Rc
Rc
16
17
PILOT DET
FF
FF
19kHz 90°
MUTING CONTROL
FM AM CHANGE OVER
Rb
Rb
15
Vcc ON
MUTING
14
13
LAMP
DRIVER
TRIGGER
STEREO
SWITCH
MUTING
OUTPUT
12
2
1
4
3
6
5
8
7
9
11
10
16
AVR-1603/683
M29W800AT (IC805)
M29W800T
M29W800T
48
37
36
25
1
A15A16
A14BYTE
A13V
A12DQ15A-1
A11DQ7
A10DQ14
A9DQ6
A8DQ13
NCDQ5
NCDQ12
WDQ4
12
RPV
13
NCDQ11
NCDQ3
RBDQ10
A18DQ2
A17DQ9
A7DQ1
A6DQ8
A5DQ0
A4G
A3V
A2E
A1A0
24
IS61LV6416 (IC806)
1
A15
2
A14
3
A13
4
A12
5
A11
6
CE
7
I/O0
8
I/O1
9
I/O2
10
I/O3
11
Vcc
12
GND
13
I/O4
14
I/O5
15
I/O6
16
I/O7
17
WE
18
A10
19
A9
20
A8
21
A7
22
NC
V
SS
CC
A0-A18
19
15
DQ0-DQ14
W
E
M29W800AT
G
DQ15A-1
BYTE
RB
RP
SS
V
ss
A0
44
A1
43
A2
42
OE
41
UB
40
LB
39
I/O15
38
I/O14
37
I/O13
36
I/O12
35
GND
34
Vcc
33
I/O11
32
I/O10
31
I/O9
30
I/O8
29
NC
28
A3
27
A4
26
A5
25
A6
24
NC
23
A0-A15
VCC
GND
I/O0-I/O7
Lower Byte
I/O8-I/O15
Upper Byte
CE
OE
WE
UB
LB
DECODER
I/O
DATA
CIRCUIT
CONTROL
CIRCUIT
64K x 16
MEMORY ARRAY
COLUMN I/O
Symbol
A0-A18
DQ0-DQ7
DQ8-DQ14
DQ15A-1
E
G
W
RP
CC
SS
PIN DESCRIPTION
Symbol
A0-A15
I/O0-I/O15
CE
OE
WE
LB
UB
V
CC
Address Inputs
Data Input/Outputs, Command Inputs
Data Input/Outputs
Data Input/Output or Address Input
Chip Enable
Output Enable
Write Enable
Reset/Block Temporary Unprotect
Ready/Busy OutputRB
Byte/Word OrganizationBYTE
Supply VoltageV
GroundV
No Connected InternallyNC
Don’t Use as Internally ConnectedDU
Pin Name
Pin Name
Address inputs
Data Inputs/Outputs
Chip Enable Input
Output Enable Input
Write Enable Input
Lower-byte Control (I/O0-I/O7)
Upper-byte Control (I/O8-I/O15)
No ConnectionNC
Power
GroundGND
CC
PIN DESCRIPTION
BD3811K1 (IC701)
IN61
INDVDSR
INDVDSL
INDVDC
INDVDSW
OUT2(+)
OUT2(-)
OUT1(+)
OUT1(-)
IN1DSP
IN1MIX
IN2DSP
IN2MIX
IN22
IN21
IN12
IN11
ROUT32
ROUT31
ROUT22
ROUT21
ROUT12
ROUT11
5.1ch Mode SW1
VINC
GOUTC
AGND10
OUTSW
80 79 78 77 76 75 74 73 7271 70 69 68 67 66 65
IN31
1
IN32
2
IN41
3
IN42
4
IN51
5
IN52
6
7
IN62
8
IN71
9
IN72
10
IN81
IN82
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 26
INDSPSR
5.1ch Mode SW2 DSP
INDSPSL
5.1ch Mode SW2 DVD
27 28 29 30 31 32 3334 35 3637 38 3940
VINSW
INDSPC
INDSPSW
AGND1
GOUTSW
AGND2
GOUT2
OUTC
VIN2
OUTSL
TREBLE
LOGIC
AGND9
BASS
BASS
BOOST
OUTSR
GOUT1
VINSL
VIN1
GOUTSL
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
TNF2
TNF1
BNF11
BNF21
BNF12
BNF22
BBNF2
OUT2
BBNF1
OUT1
AGND8
AGND7
VCC
AGND6
VEE
AGND5
MUTE
CL
DA
DGND
AGND4
GOUTSR
VINSR
AGND3
17
AVR-1603/683
LC75721E (IC301)
G7 G8G9
G10
G11
AA8/G12
AA7/G13
AA6/G14
4833
49
DI
CL
CE
RES
DD
V
OSCI
OSCO
Vss
TEST
FL
V
G1
G2
G3
G4
G5
G6
64
AM 1
AM 2
AM 3
AM 4
AM 5
AM 6
AM 7
AM 8
74LCX74 (IC821)
1C
D1
CP
1
D
D
1
2
CP
1
3
S
D1
4
Q
1
5
Q
1
6
GNDQ
7
SD1C
Q1Q
D
2
CD2S
Q2Q
1
D1
1
CP
2
D2
2
MM74LCX244 (IC809~811)
LC75721E Terminal Function
AA5/G15
AA4/G16
AA3
AA2
AA1
AM35
AM34
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 9
AM 10
AM 11
AM 12
AM 13
AM 14
AM 15
AM 16
Symbol
V
DD
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
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
MAIN P.W.B. UNIT(for U.S.A., Canada, U.K., Europe, China, Korea & Australia models)
2
3
4
5
76
8
A
B
C
D
E
COMPONENT SIDE
22
AVR-1603/683
1
MAIN P.W.B. UNIT(for Asia, HongKong, & Taiwan R.O.C. models)
2
3
4
5
76
8
A
B
C
D
E
COMPONENT SIDE
23
AVR-1603/683
1
CPU P.W.B. UNIT
2
3
4
5
76
8
A
B
C
D
E
COMPONENT SIDE
24
AVR-1603/683
1
2
3
4
5
76
8
A
B
C
D
E
FOIL SIDE
25
AVR-1603/683
1
CNT P.W.B. UNIT
2
3
4
5
76
8
A
B
C
D
E
COMPONENT SIDE
26
AVR-1603/683
1
2
3
4
5
76
8
A
B
C
D
E
FOIL SIDE
27
AVR-1603/683
1
INPUT-VOL P.W.B. UNIT
2
3
4
5
76
8
A
B
C
D
E
COMPONENT SIDEFOIL SIDE
28
AVR-1603/683
1
DSP P.W.B. UNIT
2
3
4
5
76
8
A
B
COMPONENT SIDE
C
D
FOIL SIDE
E
29
AVR-1603/683
1
VOLTAGE SEL P.W.B. UNIT
32
4
A
B
COMPONENT SIDE
C
D
E
30
NOTE FOR PARTS LIST
l Part indicated with the mark " " are not always in stock and possibly to take a long period of time for supplying, or in
some case supplying of part may be refused.
l When ordering of part, clearly indicate "1" and "I" (i) to avoid mis-supplying.
l Ordering part without stating its part number can not be supplied.
l Part indicated with the mark " " is not illustrated in the exploded view.
l Not including Carbon Film ±5%, 1/4W Type in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.)
WARNING:
Parts marked with this symbol
Use ONLY replacement parts recommended by the manufacturer.
have critical characteristics.
AVR-1603/683
ll
l Resistors
ll
Ex.: RN 14K2E182GFR
Type Shape Power Resist- Allowable Others
and per-ance error
formance
t
RD : Carbon2B : 1/8W F :±1% P : Pulse-resistant type
RC : Composition2E : 1/4W G : ±2% NL : Low noise type
RS : Metal oxide film2H :1/2W J : ±5% NB : Non-burning type
RW : Winding3A : 1WK :±10% FR :Fuse-resistor
RN : Metal film3D : 2WM :±20% F :Lead wire forming
RK : Metal mixture3F : 3W
t
3H :5W
Resistance
1 8 2⇒1800 ohm = 1.8 kohm
s
s
• Units: ohm
1 R 2⇒1.2 ohm
s
s
• Units: ohm
Indicates number of zeros after effective number.
2-digit effective number.
1-digit effective number.
2-digit effective number, decimal point indicated by R.
t
t
ll
l Capacitors
ll
Ex.: CE04W1H2R2MBP
Type Shape Dielectric Capacity Allowable Others
and per- strengtherror
formance
t
CE :Aluminum foil0J : 6.3V F : ±1%HS : High stability type
electrolytic
CA :Aluminum solid1A : 10VG : ±2%BP : Non-polar type
electrolytic
CS :Tantalum electrolytic 1C : 16VJ : ±5%HR: Ripple-resistant type
CQ : Film1E : 25VK : ±10%DL : For change and discharge
CK :Ceramic1V : 35VM : ±20%HF : For assuring high
CC :Ceramic1H :50VZ : +80%U : UL part
CP :Oil2A : 100V–20%C : CSA part
CM : Mica2B : 125V P : +100% W : UL-CSA type
CF :Metallized2C : 160V–0%F : Lead wire forming
CH :Metallized2D : 200V C : ±0.25pF
t
2E : 250V D : ±0.5pF
2H : 500V = : Others
2J : 630V
t
Capacity (electrolyte only)
2 2 2⇒2200µF
s
s
• Units: µF.
2 R 2⇒2.2µF
s
s
• Units: µF.
Indicates number of zeros after effective number.
2-digit effective number.
1-digit effective number.
2-digit effective number, decimal point indicated by R.
Capacity (except electrolyte)
2 2 2⇒2200pF=0.0022µF
s
s
(More than 2) Indicates number of zeros after effective number.
• Units: pF.
2 2 1⇒220pF
s
s
(0 or 1)Indicates number of zeros after effective number.
• Units: pF.
• When the dielectric strength is indicated in AC, "AC" is included after the dieelectric
strength value.
2-digit effective number.
2-digit effective number.
t
requency
31
AVR-1603/683
Note : The symbols in the column “Remarks” indicate the following destinations.
E3 : U.S.A. & Canada modelE1 : Asia model
PARTS LIST OF P.W.B. UNIT ASS'Y
MAIN P.W.B. ASS'Y
Ref. No.Part No.Part NameRemarksRef. No.Part No.Part NameRemarks
SEMICONDUCTORS GROUP
IC101963 0057 903 IC KIA7815AP
IC102963 0021 502 IC KIA7915PI
IC103960 0159 501 IC KIA7805API
IC104963 0057 709 IC KIA7805AP
IC105960 0195 808 IC ICP-N15
IC601960 0180 101 IC LA7952
IC602960 0044 108 IC KIA7806APfor E3
EU : U.S.A. model (AVR-683)E1C : China model
E2 : Europe modelE1H : Hong Kong model
EK : U.K. modelE1T : Taiwan R.O.C. model
EA : Australia modelE1K : Korea model
R509C960 9005 902 Metal film 1.2 kohm 1/4W
R509FL960 9005 902 Metal film 1.2 kohm 1/4W
R509FR960 9005 902 Metal film 1.2 kohm 1/4W
R509SL960 9005 902 Metal film 1.2 kohm 1/4W
R509SR960 9005 902 Metal film 1.2 kohm 1/4W
R511C960 9004 301 Metal film 47 ohm 1/4W
R511FL960 9004 301 Metal film 47 ohm 1/4W
R511FR960 9004 301 Metal film 47 ohm 1/4W
R511SL960 9004 301 Metal film 47 ohm 1/4W
R511SR960 9004 301 Metal film 47 ohm 1/4W
R559963 9005 642 Metal film 1.2 kohm 1W
R565963 9005 642 Metal film 1.2 kohm 1W
R570963 9005 642 Metal film 1.2 kohm 1W
IC701963 0096 401 IC BD3811K1
IC721963 0024 004 IC NJM2068M
1
IC761963 0024 004 IC NJM2068M
IC762963 0024 004 IC NJM2068M
IC763963 0024 004 IC NJM2068M
IC781963 0024 004 IC NJM2068M
IC782963 0024 004 IC NJM2068M
IC783963 0024 004 IC NJM2068M
44Main P.W.B. Sub Ass'y
50Video P.W.B. Sub Ass'y
55
69Outlet P.W.B. Sub Ass'y
963 0092 117 CPU P.W.B. Total Ass'yfor E3,EU1
963 0092 120for E2,EK,EA
963 0092 133for E1,E1T,E1H
963 0092 146for E1C
963 0092 159for E1K
41Front P.W.B. Sub Ass'y
46
53CPU P.W.B. Sub Ass'y
70
963 0094 403
73
963 0092 214 CNT P.W.B. Total Ass'yfor E3,EU1
963 0092 227for E2,EK,EA
963 0092 230for E1,E1T,E1H
963 0092 243for E1C
963 0092 256for E1K
42Encoder P.W.B. Sub Ass'y
43
45CNT P.W.B. Sub Ass'y
47Tuner P.W.B. Sub Ass'y
51
52S-Video P.W.B. Sub Ass'y
54
61C-Video P.W.B. Sub Ass'y for E3,EU
963 0092 311
963 0092 324for E2,EK,EA
963 0092 337for E1,E1T,E1H
963 0092 340for E1C
963 0092 353for E1K
48
963 0092 418 DSP P.W.B. Total Ass'yfor E3,EU1
963 0092 421for E2,EK,EA
963 0092 434for E1,E1T,E1H
963 0092 447for E1C
963 0092 450for E1K
49DSP P.W.B. Sub Ass'y
1 963 0093 019 Front Panelfor E31
Video CNT P.W.B. Sub Ass'y
for E2,E1,E1T,E1H,E1K
Optical-In P.W.B. Sub Ass'y
Power-Sw P.W.B. Sub Ass'y
for E2,EK,EA,E1
E1C,E1T,E1H,E1K
Voltage Sel P.W.B. Total Ass'y
for E1,E1T,E1H1
Voltage Sel P.W.B. Sub Ass'y
Head Phone P.W.B. Sub Ass'y
Pre-Amp P.W.B. Sub Ass'y
S-Video CNT P.W.B. Sub Ass'y
Input-Vol P.W.B. Total Ass'y
for E3,EU1
Input-Vol P.W.B. Sub Ass'y
Note : The symbols in the column “Remarks” indicate the following destinations.
E3 : U.S.A. & Canada modelE1 : Asia model
EU : U.S.A. model (AVR-683)E1C : China model
E2 : Europe modelE1H : Hong Kong model
EK : U.K. modelE1T : Taiwan R.O.C. model
EA : Australia modelE1K : Korea model
Q'ty
Ref. No.Part No.Part NameRemarks
963 0093 022 Front Panelfor EU1
963 0093 035 Front Panelfor E2,EK,EA1
963 0093 048 Front Panelfor E1,E1C,E1T,
Note : The symbols in the column “Remarks” indicate the following destinations.
E3 : U.S.A. & Canada modelE1 : Asia model
EU : U.S.A. model (AVR-683)E1C : China model
E2 : Europe modelE1H : Hong Kong model
EK : U.K. modelE1T : Taiwan R.O.C. model
EA : Australia modelE1K : Korea model
UPC labelfor EU1
Label E2 posfor E21
Label Ek posfor EK2
13 960 0185 601 Set poly bag1
14
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
B LINE
SIGNAL LINE
SCHEMATIC DIAGRAMS (1/8)
INPUT-VOL UNIT
F
G
H
54
SCHEMATIC DIAGRAMS (1/8)
1234567891011
AVR-1603/683
A
B
A
A
C
C
C
D
B
B
E
F
D
D
G
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
CAUTION:
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 ex
of the powe
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
B LINE
SIGNAL LINE
SCHEMATIC DIAGRAMS (1/8)
INPUT-VOL UNIT
H
54
SCHEMATIC DIAGRAMS (1/8)
1234567891011
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 ex
of the powe
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-1603/683
A
B
C
D
E
F
G
B LINE
SIGNAL LINE
SCHEMATIC DIAGRAMS (1/8)
INPUT-VOL UNIT
H
54
SCHEMATIC DIAGRAMS (2/8)
1234567891011
AVR-1603/683
A
B
C
D
E
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 card is less than 460kohms, the unit is defective.
B LINE
SIGNAL LINE
SCHEMATIC DIAGRAMS (2/8)
DSP UNIT
F
G
H
55
SCHEMATIC DIAGRAMS (2/8)
1234567891011
AVR-1603/683
A
B
A
A
C
C
C
D
B
B
E
F
D
D
G
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 ex
of the powe
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
B LINE
SIGNAL LINE
SCHEMATIC DIAGRAMS (2/8)
DSP UNIT
H
55
SCHEMATIC DIAGRAMS (2/8)
1234567891011
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
RTS ARE SUBJECT TO CHANGEWITHOUT PRIOR
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-1603/683
A
B
C
D
E
F
G
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 ex
of the powe
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
B LINE
SIGNAL LINE
SCHEMATIC DIAGRAMS (2/8)
DSP UNIT
H
55
SCHEMATIC DIAGRAMS (3/8)
1234567891011
AVR-1603/683
A
B
C
D
E
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
F
G
B LINE
SIGNAL LINE
H
SCHEMATIC DIAGRAMS (3/8)
CNT UNIT
PRE-AMP UNIT
56
SCHEMATIC DIAGRAMS (3/8)
1234567891011
AVR-1603/683
A
B
A
A
C
C
C
D
B
B
E
F
D
D
G
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
CAUTION:
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 ex
of the powe
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
B LINE
SIGNAL LINE
H
SCHEMATIC DIAGRAMS (3/8)
CNT UNIT
PRE-AMP UNIT
56
SCHEMATIC DIAGRAMS (3/8)
1234567891011
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
AVR-1603/683
A
B
C
D
E
F
G
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 ex
of the powe
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
B LINE
SIGNAL LINE
H
SCHEMATIC DIAGRAMS (3/8)
CNT UNIT
PRE-AMP UNIT
56
SCHEMATIC DIAGRAMS (4/8)
1234567891011
AVR-1603/683
A
B
C
D
E
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
F
G
B LINE
SIGNAL LINE
H
SCHEMATIC DIAGRAMS (4/8)
MAIN UNIT
OUTLET UNIT
VOLTAGE SEL UNIT
57
SCHEMATIC DIAGRAMS (4/8)
1234567891011
AVR-1603/683
A
B
A
A
C
C
C
D
B
B
E
F
D
D
G
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 ex
of the powe
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
B LINE
SIGNAL LINE
SCHEMATIC DIAGRAMS (4/8)
MAIN UNIT
OUTLET UNIT
LTAGE SEL UNIT
VO
H
57
SCHEMATIC DIAGRAMS (4/8)
1234567891011
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 ex
of the powe
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-1603/683
A
B
C
D
E
F
G
B LINE
SIGNAL LINE
SCHEMATIC DIAGRAMS (4/8)
MAIN UNIT
OUTLET UNIT
LTAGE SEL UNIT
VO
H
57
SCHEMATIC DIAGRAMS (5/8)
1234567891011
AVR-1603/683
A
B
C
D
E
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
F
G
B LINE
SIGNAL LINE
H
SCHEMATIC DIAGRAMS (5/8)
CPU UNIT
58
SCHEMATIC DIAGRAMS (5/8)
1234567891011
AVR-1603/683
A
B
A
A
C
C
C
D
B
B
E
F
D
D
G
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 ex
of the powe
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
B LINE
SIGNAL LINE
H
SCHEMATIC DIAGRAMS (5/8)
CPU UNIT
58
SCHEMATIC DIAGRAMS (5/8)
1234567891011
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EAC
CONDITION.
CIRCUIT AND PA
NOT
AVR-1603/683
A
B
C
D
E
F
G
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 ex
of the powe
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
B LINE
SIGNAL LINE
H
SCHEMATIC DIAGRAMS (5/8)
CPU UNIT
58
SCHEMATIC DIAGRAMS (6/8)
1234567891011
AVR-1603/683
A
B
C
D
E
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (6/8)
VIDEO UNIT
VIDEO CNT UNIT
S-VIDEO UNIT
S-VIDEO CNT UNIT
C-VIDEO UNIT
F
G
B LINE
SIGNAL LINE
H
59
SCHEMATIC DIAGRAMS (6/8)
1234567891011
AVR-1603/683
A
B
A
A
C
C
C
D
B
B
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 ex
of the powe
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
D
D
SCHEMATIC DIAGRAMS (6/8)
VIDEO UNIT
VIDEO CNT UNIT
S-VIDEO UNIT
S-VIDEO CNT UNIT
C-VIDEO UNIT
E
F
G
B LINE
SIGNAL LINE
H
59
SCHEMATIC DIAGRAMS (6/8)
1234567891011
AVR-1603/683
A
B
C
D
E
F
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 ex
of the powe
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (6/8)
VIDEO UNIT
VIDEO CNT UNIT
S-VIDEO UNIT
S-VIDEO CNT UNIT
C-VIDEO UNIT
G
B LINE
SIGNAL LINE
H
59
SCHEMATIC DIAGRAMS (7/8)
1234567891011
AVR-1603/683
A
B
C
D
E
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (7/8)
FRONT UNIT
OPTICAL-IN UNIT
POWER-SW UNIT
ENCODER UNIT
HEADPHONE UNIT
F
G
B LINE
SIGNAL LINE
H
60
SCHEMATIC DIAGRAMS (7/8)
1234567891011
AVR-1603/683
A
B
A
A
C
C
C
D
B
B
E
F
D
D
G
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 ex
of the powe
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (7/8)
FRONT UNIT
OPTICAL-IN UNIT
ER-SW UNIT
POW
ENCODER UNIT
HEADPHONE UNIT
B LINE
SIGNAL LINE
H
60
SCHEMATIC DIAGRAMS (7/8)
1234567891011
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 ex
of the powe
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-1603/683
A
B
C
D
E
F
G
SCHEMATIC DIAGRAMS (7/8)
FRONT UNIT
OPTICAL-IN UNIT
ER-SW UNIT
POW
ENCODER UNIT
HEADPHONE UNIT
B LINE
SIGNAL LINE
H
60
SCHEMATIC DIAGRAMS (8/8)
1234567891011
AVR-1603/683
A
B
C
D
E
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
F
G
B LINE
SIGNAL LINE
H
SCHEMATIC DIAGRAMS (8/8)
TUNER UNIT
61
SCHEMATIC DIAGRAMS (8/8)
1234567891011
AVR-1603/683
A
B
A
A
C
C
C
D
B
B
E
F
D
D
G
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 ex
of the powe
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
B LINE
SIGNAL LINE
H
SCHEMATIC DIAGRAMS (8/8)
TUNER UNIT
61
SCHEMATIC DIAGRAMS (8/8)
1234567891011
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
H VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
EAC
CONDITION.
CIRCUIT AND PA
ICE.
NOT
RTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
WARNING:
Parts marked with this symbol have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
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 ex
of the powe
ceeds 0.5 milliamps, or if the resistance from chassis to either side
r card is less than 460kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-1603/683
A
B
C
D
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