Onkyo DR 90 Service Manual

Page 1

DR-90

Ref. N03631
091999

ONKYO® SERVICE MANUAL

DVD RECEIVER
DR-90

Black and Golden models

BUD

120V AC, 60Hz

BUP/ BUPT

230V AC, SOHZ

BUWT

220-230V/ 120V AC, 50/60Hz

GUPT

230V AV, SOHZ

GU WT

220-230V/ 120V AC, 50/60Hz

SAFETY-RELATED COMPONENT WARNINGI!

COMPONENTS IDENTIFIED BY MARK A ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEARAS SHOWN
IN THIS MANUAL.

MAKE LEAKAGE-CURRENT 0R RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.

ONKYO®
AIIIIIII flflMIIIIIEIIIS

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TABLE OF CONTENTS

Specifications --------------
Service safety precautions
Laser caution/ Operation instructions-
Front panel/ Display views ----------
Rear panel view/ Remote controller
Microprocessor terminal description--
lC Block diagram------------------------
Printed circuit board parts list--
Test mode- ----------------
Printed circuit board view-
Schematic diagram-
Block diagram-«
Connection diagram--
Main PC board view--
DVD mechanism vie --
DVD mechanism/ Main PC board parts list-
Replacement mechanical parts
Trouble shooting-
Firmware upgrade--
Exploded view ------
Exploded view parts list
Wiring diagram--
Packing view---~
Assemble the packing form-

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Page 7

DR-90

IC BLOCK DIAGRAM
AK4526 (Multi-channel audio CODEC)

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Nu. Pm name I/O Function

1 $005 I SDTO Seuroe select pin
L; Internal ADC output, ~H: DAUX input

2 OCKS I MCKO Clock fraouenov select pin -

__ L": MCLK, ~H: MCLK/Zc cred with serial oontrolregistar if P/s=L".

3 M/S I Audio data master/slave mode select pin
L- Slave mode, H": Master mode.

4 BICK l/o Audio serial data clock pin

5 LRCK 1/0 input/output ohannel clock pin

a SDTI1 l DA01 audio serial data input pm

7 50le | DACZ audio serial data input pin

a Sam I we; audio serial data input pin

9 SDTO 0 Audio serial data output pin

10 DAUX l AUX audio serial data input pln

11 DFS l DoubIe speed sampling mode pin. "-L Normal speed.
H: Double speed, the ADC is powered down.

12 DEM] l De-emphesis pin

13 DEMO | De-emphaais pin

14 MCKO 0 Master oloolt output pin

15 DVDD - Digital power supply pin

l6 Dvss - Digital grounf pin

17 PD l Power-down a. reset pin. When L. the AK4526A ia powered-down
and the control registers are reset to default flute.

Ia XTS l xtal oscillator select/test mode pin. H: X'tal oscillator selected,
L: External olock source selected

19 ICKSI I Input cloelt seleot 1 pin

20 chso I Input clock select 0 pin

21 mm l Chip address pin. Used during the aerial control mode.

22 CAD!) I Chip address pin. Used during the serial control mode.

23 LoUTa o Lah ale analog output pin

24 ROUT3 o Rch #3 analog output pin

25 LOUTZ o Lch #2 analog output pin

26 ROUT2 o Roh #2 analog output pin

27 LOUT1 o Leh #1 analog output pin

23 ROUTI o Rch #1 analog output pin

29 LIN- I Lch analog negative input pin

30 um I Lch analog positive input pin

31 RIN- I Roh analog negative input pin

32 RIN+ I Rch analog positive input pin

33 VREFL | Negative voltage reference input pin.AVSS

34 VCOM 0 Common voltage output pin, Avss

35 VREFH 1 Positive voltage rofnmrlce input pin, AVDD

as AVDD - Analog power supply pin

37 AVSS - Analog ground pin

33 XTI I x'tal input pin

39 XTQ o X'tal output pin

40 P/s | Parallel/serial select pin. "L; Serial oontrol mode.

7 H. Pamllel control mode

41 es | Chip select pm in serial mode

42 00th | Control data oloclt pin in serial rnode

43 CDT! I Control data input pin in serial mode

44 CDTO 0 Control data output pin in serial mode

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