Denon AVR-1603/683 Bedienungsanleitung

Hi-Fi Component

SERVICE MANUAL

MODEL

AVR-1603/683

AV SURROUND RECEIVER

X0152 NC 0209

For U.S.A., Canada, Europe, U.K.,

Australia, Asia, China, Hong Kong,

Taiwan R.O.C. & Korea model

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

AVR-1603/683

SPECIFICATIONS

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.



Audio Section

Power Amplifier

Rated output: Front: 80W+80W (8Ω/ohms, 20Hz~20kHz with 0.08% T.H.D )

(U.S.A., & Canada Models)

70W+70W

(8Ω/ohms, 20Hz~20kHz with 0.08% T.H.D ) (Europe, U.K., Australia & Asia)

110W+110W (6Ω/ohms, 1kHz with 0.7% T.H.D )

(U.S.A., & Canada Models)

100W+100W (6Ω/ohms, 1kHz with 0.7% T.H.D ) (Europe, U.K. & Australia Models)

110W+110W (6Ω/ohms, EIAJ ) (Asia Model)

Center: 80W (8Ω/ohms, 20Hz~20kHz with 0.08% T.H.D )

(U.S.A., & Canada Models)

70W

(8Ω/ohms, 20Hz~20kHz with 0.08% T.H.D ) (Europe, U.K. & Australia & Asia)

110W (6Ω/ohms, 1kHz with 0.7% T.H.D )

(U.S.A., & Canada Models)

100W (6Ω/ohms, 1kHz with 0.7% T.H.D ) (Europe, U.K. & Australia Models)

110W (6Ω/ohms, EIAJ ) (Asia Model)

Surround: 80W+80W (8Ω/ohms, 20Hz~20kHz with 0.08% T.H.D )

(U.S.A., & Canada Models)

70W+70W

(8Ω/ohms, 20Hz~20kHz with 0.08% T.H.D ) (Europe, U.K. & Australia & Asia)

110W+110W (6Ω/ohms, 1kHz with 0.7% T.H.D )

(U.S.A., & Canada Models)

100W+100W (6Ω/ohms, 1kHz with 0.7% T.H.D ) (Europe, U.K. & Australia Models)

110W+110W (6Ω/ohms, EIAJ ) (Asia Model)

Output terminals: Front: A or B 6 to 16Ω/ohms

A+B 12 to 16Ω/ohms

Center/Surround: 6 to 16Ω/ohms

LINE input - SPEAKER OUT

Input sensitivity/input impedance:

200mV/47kΩ/kohms

Frequency response: 10Hz~100kHz: +1, −3dB (TONE DEFEAT ON)

S/N ratio: 98dB (IHF-A weighted) (TONE DEFEAT ON)



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

C(color)signal 0.286Vp-p, 75Ω/ohms

Frequency response: 5Hz~10MHz: +1, −3dB

Color component video jacks (U.S.A. & Canada Models)

Input/output level and impedance:

Y(brightness)signal 1Vp-p, 75Ω/ohms

PB/CB(blue)signal 0.7Vp-p, 75Ω/ohms

PR/CR(red)signal 0.7Vp-p, 75Ω/ohms

Frequency response: 5Hz~27MHz: +0, −3dB



Tuner section

Receiving range: [FM] (note: µV at 75Ω/ohms, 0dBf =1×10-15W) [AM]

U.S.A., & Canada Models:

87.50MHz~107.90MHz 520kHz~1710kHz

Europe U.K. & Australia Models:

87.50MHz~108.00MHz 522kHz~1611kHz

Asia Model:

87.50MHz~107.90MHz (0.2MHz steps) 520kHz~1710kHz (10kHz steps)

87.50MHz~108.00MHz (0.05MHz steps) 522kHz~1611kHz (9kHz steps)

Usable sensitivity: 1.0µV (11.2dBf) 18µV

50 dB quieting sensitivity: MONO 1.6µV (15.3dBf)

STEREO 23µV (38.5dBf)

S/N ratio: MONO 80dB (IHF-A weighted)

STEREO 75dB (IHF-A weighted)

Total harmonic distortion: MONO 0.15% (1kHz)

STEREO 0.3% (1kHz)

AVR-1603/683



General

Power supply: AC120V, 60Hz (U.S.A. & Canada Models)

AC230V, 50Hz (Europe, U.K. & Australia Models)

AC115/230V, 50/60Hz (Asia Model)

Power consumption: 4.0A (USA & Canada model)

210W (Europe, U.K., Australia & Asia models)

Maximum external dimensions: 434 (W) ×147 (H) ×417 (D) mm (17-3/32″×5-25/32″×1-23/64″)

Mass: 10.4kg (22 lbs 14.9 oz)



Remote control unit (RC-920)

Batteries: R6P/AA Type (two batteries)

External dimensions: 55 (W) ×225 (H) ×34.5 (D) mm (2-11/64″×8-55/64″×1-9/64″)

Mass: 165g (Approx. 5.8 oz) (including batteries)

* For purposes of improvement, specifications and design are subject to change without notice.

AVR-1603/683

DISASSEMBLY

(Follow the procedure below in the reverse order when reassembling)

1. Top Cover

Remove 6 screws 1and 3 screws 2, then detach the

Top Cover to the arrow direction.

2. Front Panel

(1) Remove 4 screws 3and 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.

Top Cover

Connector

FFC

Front Panel

Rear Panel

(U.S.A. & Canada models)

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.

LEVEL DIAGRAMS

AVR-1603/683

FRONT/CENTER/SURROUND

AVR-1603/683

SUB WOOFER

BLOCK DIAGRAM

AVR-1603/683

ADJUSTMENT

Tuner Section

CONNECTION DIAGRAM OF MEASURING INSTRUMENTS



FM

STEREO

MODULATOR

FM SSG

Digital

Voltmeter

75ohm

T402 T403

IC402

VR402

TUNER B'D

R471

20 +14

−10 dB



AM

T402 T403

IC402

TUNER B’D

R471

VR401

FM ALIGNMENT

Input Output Adjustment

Step Alignment

Item

Tuning

Frequency

Setting Type Frequency Input

Level Modulation Coupling Type Connect to Points Adjust to

1Center

Adjustment

98.1MHz

(98.0MHz) FM SSG 98.1MHz 60dBµMono

1kHz 100%

Antenna

Terminal

Digital

Voltmeter R471 T402 ±50mV

2 Distortion 98.1MHz

(98.0MHz) FM SSG 98.1MHz 60dBµMono

1kHz 100%

Antenna

Terminal

Distortion

Meter

Output

Terminal (L) T403 Minimum

Distortion

3 Repeat Steps 1 and 2

4 Signal Level 98.1MHz

(98.0MHz) FM SSG 98.1MHz 20dBµOFF Antenna

Terminal

Light “TUNED” on

FL Display VR402

AM ALIGNMENT

Output Adjustment

Step Alignment

Item Frequency Input Type Connect to Points Adjust to Remarks

1 Signal Level 999 (1000)

kHz AM SSG 

VR401 Light “TUNED” on

FL Display

SSG OUTPUT

74dBµ(EMF)

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 ( min.)

MODE : 5CH STEREO

FUNCTION : CD

(5) Within 2 minutes after the power on, turn VR101 clockwise ( ) to adjust the TEST POINT voltage to 1.5 mV ±0.5 mV

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.

AVR-1603/683

SEMICONDUCTORS



IC’s

CXP740096

(IC201)

PH7

PH6

PH5

PH4

PH3

PH2

PH1

PH0

PK7/TO1

RST

VSS

XTAL

EXTAL

PK6/CS0

PK5/SI0

PK4/SO0

PK3/SCK0

PF7/AN11

PF6/AN10

PF5/AN9

PC6

PC7

PA0

PA1

PA2

PA3

PA4

PA5

PA6

PA7

VDD

VSS

PK1/TX

PK2/TEX

PI1/RMC

PI2/NMI

PI3/TO0/ADJ

PI4/INT1/CS1

PI5/SCK1

PC5

PC4

PC3

PC2

PC1

PC0

PB7/SI2

PB6/SO2

PB5/SCK2

PB4/TO2

PB3

PB2

PB1

PB0

PJ7

PJ6

PJ5

PJ4

PJ3

PJ2

PJ1

PJ0

PD7

PD6

PD5

PD4

PD3

PD2

PD1

PD0

PI6/SO1

PI7/SI1

PE0/INT0

PE1/INT2

PE2/PWM0

PE3/PWM1

PE4

PE5

PE6

PE7

PG0/TxD

PG1/RxD

PG2/EC0

PG3/EC1

PG4/EC2

PG5/INT3

PG6/INT4

PG7/CINT

AN0

AN1

AN2

AN3

PF0/AN4

PF1/AN5

PF2/AN6

PF3/AN7

AVDD

AVREF

AVSS

PF4/AN8

100

TOP VIEW

CXP740096 Terminal Function

1 3811K1MUTE O BD3811K1 CONTROL

2 3811K1CLK O BD3811K1 CONTROL

3 3811K1DATA O BD3811K1 CONTROL

4 CDR/TAPE O CDR/TAPE INHIBIT

5 VCR O VCR INHIBIT

6 ERR MUTE O ERR MUTE

7 ERR MUTE OFF O ERR MUTE OFF

8 89057 AUDIO I LC89057 CONTROL

9 89057 EMPHA I LC89057 CONTROL

10 SW SUM O SW SUMMING CONTROL

11 M32 SDIN I DATA INPUT FROM MELODY32

12 89057 SDIN I DATA INPUT FROM LC89057

13 EPROM RESET O EPROM RESET

14 89057 RESET O LC89057 RESET

15 M32 CS O MELODY32 CS

16 M32 SDOUT O MELODY32 CONTROL DATA

17 89057 CE O LC89057 CE

18 89057 SDOUT O CONTROL DATA

19 89057 SCLK O CONTROL CLOCK

20 1837 RESET O CODEC RESET

21 NC 

22 SW MUTE O SW MUTE

23 RELAY F-B O FRONT B RELAY

No. Pin Name FunctionI/O

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