Denon AVR-2310-CI, AVR-890, AVC-2310 Service Manual

Ver. 3

Please refer to the
MODIFICATION NOTICE.

SERVICE MANUAL

MODEL JP E3 E2 EK EA E1C E1K EUT

AVR-2310CI
AVR-2310
AVR-890

MODEL JP E3 E2 EK EA E1C E1K EUT

AVC-2310

3

3

33

AV SURROUND RECEIVER

3

AV SURROUND AMPLIFIER

●

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

●

Please use this service manual with referring to the operating instructions without fail.

●

Some illustrations using in this service manual are slightly different from the actual set.

e

D&M Holdings lnc.

X0415V03DM/DG0910

Copyright 2009 D&M Holdings Inc. All rights reserved.

WARNING: Violators will be prosecuted to the maximum extent possible.

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.

CAUTION

Please heed the points listed below during servicing and inspection.

◎ Heed the cautions!

Spots requiring particular attention when servicing, such
as the cabinet, parts, chassis, etc., have cautions indicated
on labels or seals. Be sure to heed these cautions and the
cautions indicated in the handling instructions.

◎ Caution concerning electric shock!

(1) An AC voltage is impressed on this set, so touching in-

ternal metal parts when the set is energized could
cause electric shock. Take care to avoid electric shock,
by for example using an isolating transformer and
gloves when servicing while the set is energize d, un­plugging the power cord when replacing parts, etc.

(2)There are high voltage parts inside. Hand le with extra

care when the set is energized.

◎ Caution concerning disassembly and

assembly!

Though great care is taken when manufacturing parts from
sheet metal, there may in some rare cases be burrs on the
edges of parts which could cause injury if fingers are
moved across them. Use gloves to protect your hands.

◎ Inspect for safety after servicing!

Check that all screws, parts and wires removed or discon­nected for servicing have been put back in their original po­sitions, inspect that no parts around the area that has been
serviced have been negatively affected, conduct an insu­lation check on the external metal connectors and between
the blades of the power plug, and otherwise ch eck that
safety is ensured.

(Insulation check procedure)
Unplug the power cord from the power outlet, disconnect
the antenna, plugs, etc., and turn the power switch on. Us­ing a 500V insulation resistance tester, check that the in­sulation resistance between the terminals of the power
plug and the externally exposed metal parts (antenna ter­minal, headphones terminal, microphone terminal, input
terminal, etc.) is 1MΩ or greater. If it is less, the set must
be inspected and repaired.

CAUTION

Concerning important safety

parts

◎ Only use designated parts!

The set's parts have specific safety properties (fire resis­tance, voltage resistance, etc.). For replacement parts, be
sure to use parts which have the same properties. In par­ticular, for the important safety parts that are marked z on
wiring diagrams and parts lists, be sure to use the desig­nated parts.

◎ Be sure to mount parts and arrange

the wires as they were originally!

For safety reasons, some parts use tape, tubes or other in­sulating materials, and some parts are mounted away from
the surface of printed circuit boards. Care is also taken with
the positions of the wires inside and clamps are used to
keep wires away from heating and high voltage parts, so
be sure to set everything back as it was originally.

Many of the electric and structural parts used in the set
have special safety properties. In most cases these prop­erties are difficult to distinguish by sight, and using re­placement parts with higher ratings (rated power and
withstand voltage) does not necessarily guarantee that
safety performance will be preserved. Parts with safety
properties are indicated as shown below on the wiring dia­grams and parts lists is this service manual. Be sure to re­place them with parts with the designated part number.

(1) Schematic diagrams ... Indicated by the z mark.
(2) Parts lists ... Indicated by the z mark.

Using parts other than the designated
parts could result in electric shock, fires or
other dangerous situations.

2

AVR-2310CI/2310/890, AVC-2310

DIMENSION

AVR-2310CI/2310, AVC-2310 model

3

AVR-2310CI/2310/890, AVC-2310

AVR-890 model

4

AVR-2310CI/2310/890, AVC-2310

WIRE ARRANGEMENT

Back Panel side

Front Panel side

If wire bundles are untied or moved to perform adjustment or parts replacement etc., be sure to rearrange them neatly as
they were originally bundled or placed afterward.
Otherwise, incorrect arrangement can be a cause of noise
generation.

Wire arrangement viewed from the top

5

AVR-2310CI/2310/890, AVC-2310

DISASSEMBLY

CABINET TOP

PANEL FRONT ASSY PCB HDMI ASSY

Refer to "DISASSEMBLY 1.PANEL FRONT ASSY" Refer to "DISASSEMBL 2.PCB HDMI ASSY"

and "EXPLODED VIEW" and "EXPLODED VIEW"
PCB S/W PCB HDMI ASSY
(Ref. No. of EXPLODED VIEW : B1) (Ref. No. of EXPLODED VIEW : B23)
PCB FUNCTION ENCORDER
(Ref. No. of EXPLODED VIEW : B2)
PCB FRONT

PCB DIGI-CNT ASSY BRACKET HDMI

(Ref. No. of EXPLODED VIEW : B3)

Refer to "DISASSEMBL 4.PCB DIGI-CNT ASSY" Refer to "DISASSEMBLY 3.BRACKET HDMI"
PCB H/P and "EXPLODED VIEW" and "EXPLODED VIEW"
䇭 (Ref. No. of EXPLODED VIEW : B4) PCB DIGI-CNT ASSY BRACKET HDMI
PCB V.AUX (Ref. No. of EXPLODED VIEW : B24) (Ref. No. of EXPLODED VIEW : 42)
(Ref. No. of EXPLODED VIEW : B5) PCB DIGI_POWER ASSY
PCB FUNCTION

TUNER PAC

K

(Ref. No. of EXPLODED VIEW : B32)

(Ref. No. of EXPLODED VIEW : B6)

Refer to "DISASSEMBL 5.TUNER PACK"
PCB CNT FUNCTION and "EXPLODED VIEW"
(Ref. No. of EXPLODED VIEW : B7) TUNER PACK
PCB ENCORDER (Ref. No. of EXPLODED VIEW : 36)
(Ref. No. of EXPLODED VIEW : B8)
PCB CNT ENCORDER E2/E2A/E1C model
(Ref. No. of EXPLODED VIEW : B9)

CHASSIS BAC

K

PCB PRE OUT ASS

Y

Refer to "DISASSEMBLY 6.CHASSIS BACK" Refer to "DISASSEMBL 14.PCB PRE OUT ASSY"

and "EXPLODED VIEW" and "EXPLODED VIEW"

TRANS MAIN

CHASSIS BACK PCB PRE OUT ASSY

Refer to "DISASSEMBLY 13.TRANS MAIN" (Ref. No. of EXPLODED VIEW : 34) (Ref. No. of EXPLODED VIEW : B25)

and "EXPLODED VIEW" PCB SPK
TRANS MAIN 䇭 (Ref. No. of EXPLODED VIEW : B17)
(Ref. No. of EXPLODED VIEW : 30) PCB SPK2

(Ref. No. of EXPLODED VIEW : B18)
PCB SPK_CNT
(Ref. No. of EXPLODED VIEW : B19)

PCB SIRIUS ASSY PCB SUPPLY and PCB POWER

Refer to "DISASSEMBL 7.PCB SIRIUS ASSY" Refer to "DISASSEMBLY 12.PCB SUPPLY

and "EXPLODED VIEW" and PCB POWER" and "EXPLODED VIEW"
PCB SIRIUS ASSY PCB SUPPLY (Ref. No. of EXPLODED VIEW : B13)
(Ref. No. of EXPLODED VIEW : B26) PCB POWER (Ref. No. of EXPLODED VIEW : B14)

PCB VIDEO ASSY

Refer to "DISASSEMBL 8.PCB VIDEO ASSY"

and "EXPLODED VIEW"
PCB VIDEO ASSY
(Ref. No. of EXPLODED VIEW : B23)

PCB INPUT ASSY

Refer to "DISASSEMBL 9.PCB INPUT ASSY"

and "EXPLODED VIEW"
PCB INPUT ASSY
( Ref. No. of EXPLODED VIEW : B21)
PCB CNT1 (Ref. No. of EXPLODED VIEW : B30)

PCB CPU ASSY

Refer to "DISASSEMBL 10.PCB CPU ASSY"

and "EXPLODED VIEW"
PCB CPU ASSY
( Ref. No. of EXPLODED VIEW : B27)

PCB MAIN ASSY

Refer to "DISASSEMBL 11.PCB MAIN ASSY"

and "EXPLODED VIEW"
PCB MAIN ASSY
( Ref. No. of EXPLODED VIEW : B20)
PCB 2CH ASSY
( Ref. No. of EXPLODED VIEW : B11)
PCB CNT3
( Ref. No. of EXPLODED VIEW : B28)
PCB CNT2
( Ref. No. of EXPLODED VIEW : B29)

• Disassemble in order of the arrow of the figure of following flow.

• In the case of the re-assembling, assemble it in order of the reverse of the following flow.

• In the case of the re-assembling, observe "attention of assembling" it.

6

AVR-2310CI/2310/890, AVC-2310

About the photos used for descriptions in the “DISASSEMBLY” section.

The viewpoint of each photograph
(Photografy direction)

［View from above］

Front side

Direction of photograph: B

Direction of photograph: D

Direction of photograph: C

Proceeding : CABINET TOP PANEL FRONT ASSY

→

Proceeding : CABINET TOP PANEL FRONT ASSY

→

View from bottom

Direction of photograph: D

Style pin : Loose CP301

cut

cut

• The direction from which the photographs used herein were photograph ed is indicated at "Direction of photograph: ***" at
the left of the respective photographs.

• Refer to the table below for a description of the direction in which the photos were taken.

• Photographs for which no direction is indicated were taken from above the product.

1. PANEL FRONT ASSY

(1) Remove the screws.

(2) Cut the wire clamp bands, then loose the style pin. Disconnect the connector wire.

AVR-2310CI/2310/890, AVC-2310

7

(3) Loose the Cord holders, then disconnect the connector wires.

Cord holder : Loose CN306A

CN305 CN303

CP503

Cord holder : Loose

Direction of photograph: C

FFC Cable

CP541

Direction of photograph: D

Please refer to "EXPLODED VIEW" for the disassembly method of each P.W.B included in PANEL FRONT ASSY.

(4) Disconnect the FFC Cable.

(5) Remove the screws.

(6) Disconnect the connector wire, then remove the screw.

8

AVR-2310CI/2310/890, AVC-2310

2. PCB HDMI ASSY

Proceeding : CABINET TOP HDMI PWB ASSY

→

PCB HDMI ASSY

Board to board

FFC Cable FFC Cable CX047

FFC Cable

SUPPORTER

CX046

cut

Direction of photograph: A

Proceeding : CABINET TOP HDMI PWB ASSY

→

BRACKET HDMI

→

CP2270

BRACKT HDMI

cut

Direction of photograph: A

(1) Cut the wire clamp band, then disconnect the connector wires and FFC Cables.

Remove the SUPPORTER, then disconnect the board to board.

(2) Remove the screws.

3. BRACKET HDMI

(1) Cut the wire clamper, then disconnect the connector wire. Remove the screws.

(2) Remove the screws.

AVR-2310CI/2310/890, AVC-2310

9

4. PCB DIGI-CNT ASSY

Proceeding : CABINET TOP HDMI PWB ASSY

→

→

DIGI-CNT PWB ASSY

BRACKET HDMI

→

FFC Cable

Board to board

PCB DIGI-CNT ASSY

Direction of photograph: A

→

TUNER PACK

Proceeding : CABINET TOP HDMI PWB ASSY

→

→

DIGI-CNT PWB ASSY

BRACKET HDMI

→

Direction of photograph: A

(1) Disconnect the FFC cable and board to board.

(2) Remove the screws.

5. TUNER PACK

(1) Remove the screws.

AVR-2310CI/2310/890, AVC-2310

10

6. CHASSIS BACK

→

TUNER PACK

→

CHASSIS BACK

Proceeding : CABINET TOP HDMI PWB ASSY

→

→

DIGI-CNT PWB ASSY

BRACKET HDMI

→

Style pin : Loose

CP102B

CN101BCN102 CP501

cut

Direction of photograph: A

PCB SPK 2

PCB SPK

CP103

CP101A

(1) Cut the wire clamp band, then loose the style pins. Disconnect the connector wires.

(2) Remove the screws, then disconnect the connector wires.

AVR-2310CI/2310/890, AVC-2310

11

7. PCB SIRIUS ASSY

→

TUNER PACK

→

CHASSIS BACK

Proceeding : CABINET TOP HDMI PWB ASSY

→

→

DIGI-CNT PWB ASSY

→

PCB SIRIUS ASSY

BRACKET HDMI

→

v

Board to board

PCB DSIRIUS ASSY

→

TUNER PACK

→

CHASSIS BACK

Proceeding : CABINET TOP HDMI PWB ASSY

→

→

DIGI-CNT PWB ASSY

→

PCB SIRIUS ASSY

→

PCB VIDEO ASSY

BRACKET HDMI

→

v

Board to board

PCB VIDEO ASSY

(1) Disconnect the board to board.

8. PCB VIDEO ASSY

(1) Disconnect the board to boards.

AVR-2310CI/2310/890, AVC-2310

12

9. PCB INPUT ASSY

→

TUNER PACK

→

CHASSIS BACK

Proceeding : CABINET TOP HDMI PWB ASSY

→

→

DIGI-CNT PWB ASSY

→

PCB SIRIUS ASSY

→

PCB VIDEO ASSY

→

PCB INPUT ASSY

BRACKET HDMI

→

Direction of photograph: C

cut

PCB INPUT ASSY

Board to board Cord holder : LOOSE

CP515CN303CP708

(1) Cut the wire clamp bands.

(2) Loose the Cord holder, then disconnect the connector wires and board to board.

AVR-2310CI/2310/890, AVC-2310

13

10. PCB CPU ASSY

→

TUNER PACK

→

CHASSIS BACK

Proceeding : CABINET TOP HDMI PWB ASSY

→

→

DIGI-CNT PWB ASSY

→

PCB SIRIUS ASSY

→

PCB VIDEO ASSY

→

PCB INPUT ASSY

→

PCB CPU ASSY

BRACKET HDMI

→

Direction of photograph: C

FFC Cable

v

Board to board

CN305

PCB CPU ASSY

(1) Disconnect the FFC cable.

(2) Disconnect the connector wires and board to board.

AVR-2310CI/2310/890, AVC-2310

14

11. PCB MAIN ASSY

→

TUNER PACK

→

CHASSIS BACK

Proceeding : CABINET TOP HDMI PWB ASSY

→

→

DIGI-CNT PWB ASSY

→

PCB SIRIUS ASSY

→

PCB VIDEO ASSY

→

PCB INPUT ASSY

→

PCB CPU ASSY

→

PCB MAIN ASSY

BRACKET HDMI

→

Direction of photograph: C

View from bottom

CP2270CP541

CP104

CP511

PCB MAIN ASSY

(1) Remove the screws.

(2) Disconnect the connector wires, then remove the screws.

AVR-2310CI/2310/890, AVC-2310

15

12. PCB SUPPLY and PCB POWER

→

TUNER PACK

→

CHASSIS BACK

Proceeding : CABINET TOP HDMI PWB ASSY

→

→

DIGI-CNT PWB ASSY

→

PCB SUPPLY and PCB POWER

BRACKET HDMI

→

v

PCB SUPPLY ASSY

CP501

CP503CP511

CP515

Direction of photograph: D

SUPPORTER

CP513 CP512

cut

cut

PCB POWER ASSY

(1) Disconnect the connector wires, then remove the screws.

(2) Cut the wire clamp bands, then disconnect the connector wires and SUPPORTER.

AVR-2310CI/2310/890, AVC-2310

16

13. TRANS MAIN

Proceeding : CABINET TOP TRANS MAIN

→

Direction of photograph: D

CP513

CP301

CP512

cut

Style pin : Loose

CP2270 CN306A

CP104 CP501

cut

(1) Cut the wire clamp bands, then disconnect the connector wires and SUPPORTER.

(2) Cut the wire clamp band, then loose the style pin. Disconnect the connector wires, then remove the screws.

AVR-2310CI/2310/890, AVC-2310

17

14. PCB PRE OUT ASSY (E2/EA/E1C model)

→

TUNER PACK

→

PCB PRE OUT ASSY

Proceeding : CABINET TOP HDMI PWB ASSY

→

→

DIGI-CNT PWB ASSY

BRACKET HDMI

→

v

CN702CN701

PCB PRE-OUT ASSY

Direction of photograph: A

(1) Disconnect the connector wires.

(2) Remove the screws.

AVR-2310CI/2310/890, AVC-2310

18

CAUTION IN SERVICING

Note:・If step 3 does not work, start over from step 1.

・ All user settings will be lost and this factory setting will be recovered when this initialization mode.

So make sure to m+emorize your setting for restoring after the initialization.

SURROUND

MODE 0

SURROUND

MODE 1

ON/OFF

Initializing AV SURROUND RECEIVER

AV SURROUND RECEIVER initialization should be performed when the µcom, peripheral parts of µcom, and Digital P.W.B.
are replaced.

1. Switch off the unit.

2. With the "SURROUND MODE 0" and "SURROUND MODE 1" buttons pressed, press the "ON/OFF" button to turn the

power on.

3. Check that the entire display is flashing with an interval of about 1 second, and release your fingers from the 2 buttons and

the microprocessor will be initialized.

JIG to use for servicing

When you repair the printing board, you can use the following JIG (Extension cable kit). Please order to Denon Official Service
Distributor in your region if necessary.

00D SPK- 561 EXTENSION UNIT KIT : 1 Set
00D SPK- 562 9120 CONN. JOINT KIT : 1 Set

When you update the firmware, you can use the following
JIG (RS232C to internal connector conversion adapter with 8P cable kit ). Please order to Denon Official Service Distributor
in your region if necessary.

00DSPK-581 WRITING UNIT : 1 Set

AVR-2310CI/2310/890, AVC-2310

19

SPECIAL MODE d

DYNAMIC

VOLUME

DYNAMIC

EQ

ENTER

MENU

SURROUND

0 MODE 1

ON/OFF

CURSOR

SOURCE

DIMMER

RESTORER

STATUS

MULTEQ

Special mode setting button

※ Press the ON/OFF button to turn on while pressing both buttons A and B at the same time.

Mode Button A Button B Contents

µcom/DSP Version display mode

Errors checking mode
(Displaying the protection history mode)

Initialization mode

Mode for switching tuner frequency step

Mode for preventing remote control
acceptance

Panel lock mode
Panel lock mode

(Remove Master volume)
Cancellation of panel lock mode MENU RESTORER Panel lock mode is cancelled.

STATUS DIMMER

STATUS MUL TEQ

SURROUND

MODE0

DYNAMICEQDYNAMIC

CURSOR 0 RESTORER

SURROUND

MODE0

SURROUND

MODE1

SURROUND

MODE1

VOL

RESTORER

RESTORER Operations using main unit panel buttons are rejected.

Serial No. and firmware versions such as Main, Sub, DSP are
displayed in the FL manager. Errors are displayed when they
occur. (Refer to 21 page.)

Displaying the protection history
(Refer to 22 page.)

Backup data initialization is carried out.
(Refer to 19 page.)

---E2 model only--­Select with the SOURCE 0 1 button.
Change tuner frequency step to AM9k/FM50kHz STEP or AM:10k/
FM:200kHz.

Operations using remote control are rejected.
(Mode cancellation: Turn off power and execute the same button
operations as when performing setup.)

Operations using main unit panel buttons or master volume are
rejected.

20

AVR-2310CI/2310/890, AVC-2310

1. µcom/DSP Version display mode

1.1. Operation specifications

µcom/DSP version display mode:

When started up, the version information is displayed.

Starting up:

With the "DIMMER" and "STATUS" buttons pressed, press the "ON/OFF" button to turn the power on.
Now, press the "STATUS" button to the display the 2nd item information on the FL Display.

1.2. Display Order

Destination information→Main-µcom version information →Sub-µcom version information → DSP version information
→ APLD version information → OSD config information → OSD PRG information→ OSD DAT information

1.3. Display

Any one of the following list is displayed, in the priority of ①②③④ .

Condition State Display

①

Sub-µcom NG

② DIR NG
③ DSP NG

④

Both SUB/DSP OK

No response from Sub-µcom
No response from DIR
When DSP boot, executing DSP reset makes no change to DSP FLAG 0

port "H".
No change to DSP FLAG 0 port "H" before issuing DSP command.
When DSP data read, executing WRITE="L" makes no change to

ACK="H".
When DSP data read, executing REQ="L" makes no change to

ACK="L".
When DSP data write, executing WRITE="H" makes no change to ACK="H".
When DSP data write, executing REQ="L" makes no change to

ACK="L".
When DSP special code boot, executing DSP reset makes no change to

DSP FLAG 0 port "H".
No change to DSP FLAG 0 port "H" before issuing DSP special read

command.
No change to DSP FLAG 0 port "H" before DSP version read.

" □ ＳＵＢ □□ ＥＲＲＯＲ □０１□ "

" □ ＤＩＲ □□ ＥＲＲＯＲ □０１□ "

" □ ＤＳＰ □□ ＥＲＲＯＲ □０１□ "

" □ ＤＳＰ □□ ＥＲＲＯＲ □０２□ "

" □ ＤＳＰ □□ ＥＲＲＯＲ □０３□ "

" □ ＤＳＰ □□ ＥＲＲＯＲ □０４□ "

" □ ＤＳＰ □□ ＥＲＲＯＲ □０５□ "

" □ ＤＳＰ □□ ＥＲＲＯＲ □０６□ "

" □ ＤＳＰ □□ ＥＲＲＯＲ □１１□ "

" □ ＤＳＰ □□ ＥＲＲＯＲ □１２□ "

" □ ＤＳＰ □□ ＥＲＲＯＲ □１３□ "

(No error display, version display only)

21

AVR-2310CI/2310/890, AVC-2310

2. Errors checking mode (Displaying the protection history)

2.1. Operation specifications

Error mode (Displaying the protection history):

When started up, the error information is displayed.

Starting up:

● All model commonness

With the "STATUS" and "MULTEQ" buttons pressed, press the "ON/OFF" button to turn the power on. The error (protection
history display) mode is set.
Now, press the "STATUS" button to turn on the FL display.

2.2. About the display on the FL display

When the "STATUS" button is pressed after setting the error (protection history display) mode, a history like the one shown
below is displayed, depending on the conditions.
(1) Normally (when there has been no protection incident)

Upper P R O T E C T
Lower N O P R O T E C T

(2) For ASO/DC (when the last protection incident was ASO or DC protection)

Upper P R O T E C T
Lower P R T : A S O / D C

ISTORY

H

ISTORY

H

(3) For THERMAL (when the last protection incident was THERMALprotection)

Upper P R O T E C T
Lower P R T : T H E R M A L

ISTORY

H

When the "STATUS" button is pressed again after the above protection history is displayed, the normal display reappears.

2.3. Clearing the protection history

There are two ways to clear the protection history, as described below.

(1) Start up the error (protection display) mode, display the error, then press and hold in the "ENTER" button for 3 seconds.

Upper P R O T E C T
Lower : T H E R M A L T H E

Press and hold in the "ENTER" button for 3 seconds

Upper P R O T E C T
Lower P R T : C L E A R

The above is displayed and the protection history is cleared.

ISTORY

H

ISTORY

H

Upper P R O T E C T
Lower N O P R O T E C T

ISTORY

H

(2) Initialize.

※ If you want to save a backup, use the method in 3.(1) above.

Warning indication by the POWER LED

If the power is turned off when a protection incident has been detected, the POWER LED (red) flashes as a warning ac­cording to the conditions in which the protection incident occurred.

(1) ASO/DC PROTECTION : Flashes in cycles of 0.5 seconds (0.25 seconds lit, 0.25 seconds off)
(2) THERMAL PROTECTION : Flashes in cycles of 2 seconds (1 second lit, 1 second off)

22

AVR-2310CI/2310/890, AVC-2310

ADJUSTMENT

VR101SR

TP104

VR101FL

TP101

TP102

VR101SL

TP402

VR402

TP103

VR101C

VR101FR

TP105

F Lch

S Lch

S Back Rch

TP401

VR401

S Back Lch

C ch

S Rch

F Rch

DC Voltmeter

PCB MAIN ASSY

PCB 2CH ASSY

Audio Section

Idling Current

Required measurement equipment: DC Voltmeter

1. Preparation

(1) Avoid direct blow from an air conditioner or an electric fan, and adjust the unit at normal room temperature

15 °C ~ 30 °C (59 °F ~ 86 °F).

(2) Presetting

• POWER (Power source switch) OFF

• SPEAKER (Speaker terminal) No load
(Do not connect speaker, dummy resistor, etc.)

2. Adjustment

(1) Remove top cover and set VR101 FL, FR, C, SL, SR, on Main Amp. Unit, VR401, VR402 on 2ch- Amp.

Unit at fully counterclockwise (c) position.

(2) Connect DC Voltmeter to test points (FRONT-Lch: TP101, FRONT-Rch: TP105, CENTER ch: TP103, SURROUND-

Lch: TP102, SURROUND-Rch: TP104, SURROUND-BACK Lch: TP401, SURROUND-BACK Rch: TP402).
(3) Connect power cord to AC Line, and turn power switch "ON".
(4) Presetting.

MASTER VOLUME: "---" counterclockwise (c min.)

SPEAKER (Speaker terminal) : No load

(Do not connect speaker, dummy resistor, etc.)

MODE : 7CH STEREO (5CH STEREO)

FUNCTION : CD
(5) Within 2 minutes after the power on, turn VR101 clockwise (x) 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 2.0 mV ± 0.5 mV DC.
(7) Adjust the Variable Resistors of other channels in the same way.

23

AVR-2310CI/2310/890, AVC-2310

TROUBLE SHOOTING

1. POWER

1.1. Power not turn on

Power not turn on

YES

Is the ON/STANDBY indica­tor on the front panel flashing
red?

YES

Is the fuse blown?

YES

Does the power turn on when
the POWER switch is turned
off then back on?

YES YES YES

Check the primary circuitry
parts including the POWER
switch (for poor contacts,
etc.), and replace any defec­tive parts.

Are there any incomplete
connections in the connec-

NO

tors connecting between the
various circuit boards?

YES YES

Connect the connectors
properly.

NO

NO

Refer to Fuse is blown

Is a DC 5V voltage being
supplied from the PCB
POWER (CN505 pin 4) to the
microprocessor?

Check the microprocessor
periphery circuitry and
replace any defective parts.

Is there a short circuit

NO

between the speaker termi­nals and the ground?

Check for damage in the
power amplifier circuitry parts
and replace any defective
parts.

Is a DC 5V voltage output
when the cord supplying the

NO

power from the PCB SUP­PLY to the microprocessor
(CP511) is unplugged?

Check the circuitry and parts
from CP511 on the PCB
SUPPLY to the microproces­sor for damage and short-cir­cuits, and replace any
defective parts.

Correct the short circuit

NO

between the speaker and
the ground.

Check the parts from IC501

NO

to the primary circuitry and
replace any defective parts.

1.2. Fuse is blown

YES YES YES

Check for leaks or short cir­cuits in the primary side
parts, and replace any defec­tive parts.

YES YES YES

Fuse is blown

Check for short circuits in the
rectifier diodes and circuitry
of the secondary side rectify­ing circuits, and replace any
defective parts.

After repairing, also replace the fuse.

Check for short circuits in the
power stabilizer unit's regula­tor output terminal and the
ground, and replace any
defective parts.

24

AVR-2310CI/2310/890, AVC-2310

2. Analog video

2.1. MONITOR OUT

MONITOR OUT (CVBS/S/COMPONENT) output NG

Check the Video convert ON/OFF settings

Video convert ON

Input

CVBS

A Interlace

Input

S

Inpu t

COMPONENT

Progressive

Interlace

B

※ When checking operation, select

SAT/CBL for the function of CVBS/
S, and select DVD for the function
of COMPONENT.
(COMPONENT1 input)

or

Progressive

no output

25

AVR-2310CI/2310/890, AVC-2310

A

Check Power Supply Voltages.

Input

CVBS/S

V+5 : CN2005-8pin

V-5 : CN2005-7pin

SCPU+5V : CY141-1pin

CEC3.3V : C420 (IC402 side)
CEC1.8V : C428 (IC403 side)

OK

PCB HDMI

Check input of Video Decoder signal.

Input V : C504
Input Y : C510

Input C : C505

OK

Check output of

Video filter AMP (IC2024).
Output V : C2167 (+ side)
Output Y : C2166 (+ side)
Output C : C2170
Output Y : C2161 (+ side)

Output Cb : C2155 (+ side)

Output Cr : C2163 (+ side)

OK

OSD3.3V : TP602-2pin

I/P_3.3V : FB851

DDR_1.8V : CC805 (L802 side)

1.0V_DV : CC809 (L801 side)

PCB HDMI

NG

Check output of after Video Encoder.

NG

Check connection and contact of the

Check signal DET.
V : CY141-8pin : H (+3.3V)
Y : CY141-9pin : H (+3.3V)

OK

Check connection and

contact of the FFC cable.

PCB HDMI

Output Y : TR954 (Emitter side)

Output C : TR955 (Emitter side)
Output Y : TR951 (Emitter side)

Output Cb : TR952 (Emitter side)

Output Cr : TR953 (Emitter side)

OK

FFC cable, and check soldering of

Video filter AMP (IC2024)

and surrounding parts.

NG

Check input selector and Video AMP,

NG

Input selector:IC2002,IC2003,IC2004
Video AMP :C2005,IC2006

NG

To troubleshooting

1.1 Power not turn on.

surrounding circuitry soldering.

or μCOM UNIT flaw.

Flaw of PCB HDMI.

CVBS/S output

Check output of output Video AMP.

Output V : IC2016-24pin
Output Y : IC2016-20pin
Output C : IC2016-22pin

OK

Check cable between main unit

and monitor or Check monitor.

※ Unless specified, PCB VIDEO part.

Check soldering of output selector

NG

and surrounding circuitry.

Output selector : IC2014,IC2015

Check soldering of selector

and surrounding circuitry.

Output selector : IC2023

COMPONENT output

Check output of output Video AMP.

NG

Output Y : IC2022-13pin

Output Cb : IC2022-11pin

Output Cr : IC2022-9pin

OK

Check cable between main unit

and monitor or Check monitor.

26

AVR-2310CI/2310/890, AVC-2310

B

Check Power Supply Voltages.

Input

COMPONENT

V+5 : CN2005-8pin

V-5 : CN2005-7pin

SCPU+5V : CY141-1pin

CEC3.3V : C420 (IC402 side)
CEC1.8V : C428 (IC403 side)

OK

PCB HDMI

Check input of Video Decoder signal.

Input Y : C502

Input Cb : C501

Input Cr : C503

OK

Check the output of

Video filter AMP (IC2024).
Output V : C2167 (+ side)
Output Y : C2166 (+ side)
Output C : C2170
Output Y : C2161 (+ side)

Output Cb : C2155 (+ side)

Output Cr : C2163 (+ side)

OK

OSD3.3V : TP602-2pin

I/P_3.3V : FB851

DDR_1.8V : CC805 (L802 side)

1.0V_DV : CC809 (L801 side)

NG

Y : CY141-7pin : H (+3.3V)

Check output of after Video Encoder.

NG

Output Y : TR954 (Emitter side)
Output C : TR955 (Emitter side)
Output Y : TR951 (Emitter side)

Output Cb : TR952 (Emitter side)

Output Cr : TR953 (Emitter side)

Check connection and contact of the

FFC cable, and check soldering of

PCB HDMI

Check signal DET.

OK

Check connection and

contact of the FFC cable.

PCB HDMI

OK

Video filter AMP (IC2024)

and surrounding parts.

NG

Check input selector and Video AMP,

NG

NG

To troubleshooting

1.1 Power not turn on.

surrounding circuitry soldering.

Input selector : IC2023

Video AMP : IC2021

or μCOM UNIT flaw.

Flaw of PCB HDMI.

CVBS/S output

Check output of output Video AMP.

Output V : IC2016-24pin
Output Y : IC2016-20pin
Output C : IC2016-22pin

OK

Check cable between main unit

and monitor or Check monitor.

※ Unless specified, PCB VIDEO part.

Check soldering of output selector

NG

and surrounding circuitry.

Outpu selectort : IC2014,IC2015

Check soldering of selector

and surrounding circuitry.

Output selector : IC2023

COMPONENT output

Check output of output Video AMP.

NG

Output Y : IC2022-13pin

Output Cb : IC2022-11pin

Output Cr : IC2022-9pin

OK

Check cable between main unit

and monitor or Check monitor.

27

AVR-2310CI/2310/890, AVC-2310

2.2. HDMI OUT

Input

CVBS

HDMI OUT output NG

Check the Video convert ON/OFF settings

Video convert ON

Input

S

DE

Input

COMPONENT

To troubleshooting of

※ When checking operation, select

SAT/CBL for the function of CVBS/
S, and select DVD for the function
of COMPONENT.
(COMPONENT1 input)

Input

HDMI

3.HDMI/DVI

28

AVR-2310CI/2310/890, AVC-2310

D

Check Power Supply Voltages.

Check Power Supply Voltages.

Input

CVBS/S

V+5 : CN2005-8pin

V-5 : CN2005-7pin

SCPU+5V : CY141-1pin

CEC3.3V : C420 (IC402 side)
CEC1.8V : C428 (IC403 side)

OK

PCB HDMI

Check input of Video Decoder signal.

Input V : C504
Input Y : C510

Input C : C505

OK

To troubleshooting of 3.HDMI/DVI

※ Unless specified, PCB VIDEO part.

E

Input

COMPONENT

NG

OSD3.3V : TP602-2pin

I/P_3.3V : FB851

DDR_1.8V : CC805 (L802 side)

1.0V_DV : CC809 (L801 side)

PCB HDMI

Check signal DET.
V : CY141-8pin : H (+3.3V)
Y : CY141-9pin : H (+3.3V)

OK

Check connection and

contact of the FFC cable.

NG

Check input selector and Video AMP,

NG

Input selector:IC2002,IC2003,IC2004
Video AMP :IC2005,IC2006

To troubleshooting

1.1 Power not turn on.

surrounding circuitry soldering.

or μCOM UNIT flaw.

V+5 : CN2005-8pin

V-5 : CN2005-7pin

SCPU+5V : CY141-1pin

CEC3.3V : C420 (IC402 side)
CEC1.8V : C428 (IC403 side)

OK

PCB HDMI

Check input of Video decoder signal.

Input Y : C502

Input Cb : C501

Input Cr : C503

OK

To troubleshooting of 3.HDMI/DVI

※ Unless specified, PCB VIDEO part.

NG

OSD3.3V : TP602-2pin

I/P_3.3V : FB851

DDR_1.8V : CC805 (L802 side)

1.0V_DV : CC809 (L801 side)

PCB HDMI

Check signal DET.
Y : CY141-7pin : H (+3.3V)

OK

Check connection and

contact of the FFC cable.

NG

Check input selector and Video AMP,

NG

To troubleshooting

1.1 Power not turn on.

surrounding circuitry soldering.

Input selector : IC2023

Video AMP : IC2021

or μCOM UNIT flaw.

29

AVR-2310CI/2310/890, AVC-2310

2.3. VCR/DVR MONITOR OUT

VCR/DVR MONITOR OUT(CVBS/S) output NG

Input

CVBS

F No output

Input

S

※ When checking operation, select

SAT/CBL for the function.

Inpu t

COMPONENT

F

Input

CVBS/S

Check signal V ± 5, SCPU+5V.

V+5 : CN2005-8pin

V-5 : CN2005-7pin

SCPU+5V : CY141-1pin

Check output of output Video AMP.
DVR Output V : IC2016-33pin
VCR Output Y : IC2016-29pin
VCR Output C : IC2016-31pin

Check cable between main unit

and monitor or Check monitor.

OK

OK

NG

NG

Check soldering of output Video AMP

To troubleshooting

1.1 Power not turn on.

Check input of output Video AMP.

Output V : Q2015 (Collector side)
Output Y : Q2013 (Collector side)
Output C : Q2014 (Collector side)

OK

and surrounding circuitry.

Check input selector and Video AMP,

NG

surrounding circuitry soldering.
Input selector:IC2002,IC2003,IC2004
Video AMP :C2005,IC2006

or μCOM UNIT flaw.

30

AVR-2310CI/2310/890, AVC-2310