Denon AVR-2105 Service Manual

For U.S.A., Canada, Europe, U.K.,
Asia, China,Taiwan R.O.C., Korea
& Japan model

SERVICE MANUAL

MODEL

AV SURROUND RECEIVER / AMPLIFIER

AVR-2105/885
AVC-1890

注 意

サービスをおこなう前に、このサービスマニュアルを
必ずお読みください。本機は、火災、感電、けがなど
に対する安全性を確保するために､さまざまな配慮を
おこなっており、また法的には「電気用品安全法」に
もとづき、所定の許可を得て製造されております。
従ってサービスをおこなう際は、これらの安全性が維
持されるよう、このサービスマニュアルに記載されて
いる注意事項を必ずお守りください。

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.

Tokyo, Japan

本機の仕様は性能改良のため、予告なく変更する
ことがあります。

補修用性能部品の保有期間は、製造打切後8年です。

修理の際は、必ず取扱説明書を参照の上、作業を
行ってください。

本文中に使用しているイラストは、説明の都合上
現物と多少異なる場合があります。

X0206V.01 DE/CDM 0407

AVR2105/885 / AVC-1890

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.

500V

1M

(1)

(2)

(1)

(2)

2

LEVEL DIAGRAMS

FRONT/CENTR/SURROUND/SURROUND BACK

AVR-2105/885 / AVC-1890

6CH IN

DIGITAL

CD IN

6CH IN

40dB

30dB

20dB

10dB

0dB

(200mV)

-10dB

-20dB

6CH IN

CD IN

INPUT

BUFFER

AMP

+

FRONT

A/D IN

REV AMP

---

-12dB

A/D IN

A/D IN

REV AMP

REV AMP

0dBFS

-10dBFS

-20dBFS

-30dBFS

D/A OUT

LPF

HPF

+

DIR

A/D

A/D

DSP D/A

TONE CONTROL

0dBFS

-10dBFS

-20dBFS

-30dBFS

D/A

+--

D/A OUT

100mV REF

MUTE

6dB

REV AMP

SW SUM

REV AMP

-- +

SUM S/W

-18dB

VOL 00

PRE AMP

15.5dB

MUTE

POWER AMP

25.5dB

-35.5dB

SPK OUT

FRONT

ATT

H/P OUT

SPK OUT

FRONT

2.83V

(1W/8ohm)

H/P OUT

47mV

(0.27mW/8ohm)

6CH IN

(200mV)

40dB

30dB

20dB

10dB

-10dB

-20dB

SPK OUT
CENTER

SURROUND

CENTER

DSP OUT

D/A

+

+

SURROUND

SURROUND BACK

D/A

0dBFS

-10dBFS

0dB6CH IN

-20dBFS

-23dBFS

-30dBFS

100mV REF

70.8mV REF

6dB

D/A OUT

D/A OUT

MUTE

CENTER

SURR/SB

6dB

-15dB

-18dB

15.5dB

VOL 00

MUTE

25.5dB

SPK OUT

2.83V

(1W/8ohm)

3

SUB WOORER

AVR-2105/885 / AVC-1890

6CH IN

SUB_WOOFER

6CH INPUT

30dB

20dB

10dB

OdB

(200mV)

(112mV)

-5dB

-10dB

-20dB

-30dB

DSP OUT

0dBFS

-10dBFS

-20dBFS

Config2 -28dBFS

-30dBFS

Config1 -38dBFS

D/A OUT

LPF

D/A

D/A

+--

Front D/A Out

100mV ref

6dB

LFE

LFE

6dB

MUTE MUTE

REV AMP

SW SUM

REV AMP

-- +

TO FRONT CH

10.5dB

10dB -18dB

VOL 00

PRE AMP

21.5dB

SUB WOOFER

PRE OUT

SUB WOOFER

PRE OUT

373mV

4

FRONT VS SW

AVR-2105/885 / AVC-1890

FRONT VS SW

DIGITAL

CD IN +

6CH IN

40dB

30dB

20dB

10dB

0dB

6CH IN (200mV)

-10dB

-20dB

6CH IN

CD IN

INPUT

BUFFER

AMP

FRONT

A/D IN

REV AMP

---

-12dB

A/D IN

A/D IN

REV AMP

REV AMP

0dBFS

-10dBFS

-20dBFS

-30dBFS

D/A OUT

LPF

HPF

+

DIR

A/D

A/D

DSP with

Tone control

Config1

Front

SW

0dBFS

-10dBFS

-20dBFS

-30dBFS

-38dBFS

D/A

D/A

+--

MUTE

D/A OUT

100mV REF

6.8dB up

6.8dB up

REV AMP

--

-13.2dB

-31.2dB

SW SUM

REV AMP

SUM S/W

1.54dB up

14.5dB up

ELECTRIC

VOLUME

-11.66dB

-16.7dB 18dB down

18dB down

-29.66dB

-34.7dB

16.6dB up

PRE AMP

+

21.56dB up

-13.06dB

-13.14dB

MUTE

POWER AMP

26.02 dB up

-35.5dB down

SPK OUT

FRONT

ATT

H/P OUT

SPK OUT

FRONT

4.35V

H/P OUT

73mV

5

BLOCK DIAGRAM

DIGITAL OUT

OPTICAL_1

OPTICAL_2

OPTICAL_3

OPTICAL_4

DIGITAL IN

ANALOG IN

(JAPAN ONLY)

ANALOG OUT
CDR/TAPE OUT

6CH_INPUT

VCR

TV/DBS

DVD/VDP

D-VIDEO INPUT

JAPAN ONLY

COAXIAL

PHONO

CDR/TAPE

DVD/VDP

TV/DBS

VCR1

VCR2

V.AUX

TUNER

VCR1 OUT

VCR2 OUT

MIC IN

MULTI OUT

E3 ONLY

FM ANT

AM ANT

LINE_1

LINE_2

LINE_3

LINE_1

LINE_2

LINE_3

LINE_1

LINE_2

LINE_3

12.288MHz

+

CD

Y

CB

CR

Y

CB

CR

Y

CB

CR

INPUT

Selector

XIN

TC9274-011

REC_SWITCHIG INPUT_SWITCHIG

+

+

R

EX_FL
EX_FR
EX_SL
EX_SR
EX_C
EX_SW

FM

FRONTEND

LOOP FILTER

LC89057W-VF4

+

+

L

DIR

DEMODULATION

&

Lock Detect Selector

TC9273-004

IF FILTER

DATA

ADIN(24)

FROM MICOM

+

+

HPF

AM TUNING

PLL CIRCUIT

FROM u-COM

RLRCK(20)

fs

RBCK(17)

64fs

RMCK(16)

256fs

SBCK(22)

SLRCK(23)

PD/RST

--

IF FILTER

IF AMP

LINE_3

ADC

ADC

LINE_2

RDATA(21)

DBCLK
MCLK
ASDATA

CODEC
AD1837

CR

LINE_1

ABCLK

DSDATA4

SERIAL DATA

I/O PORT

Y

CB

D-VIDEO OUTPUT

DSDATA3

DIGITAL
FILTER

DIGITAL
FILTER

FM & AM

IF IC

MPX IC

L.P.F

MUTING

DSDATA1

DSDATA2

ALRCLK/FSTDM

BUFFER

74LCX244

TA1270

Y/Cb/Cr

fs

64fs

64fs

CONTROL PORT

VOLUME

VOLUMEDLRCLK

VOLUME

VOLUME

VOLUME

VOLUME

VOLUME

VOLUME

< AVR1805E2,G2A,E3,EK,G1C,G1K >

CLOCK

DIGITAL

FILTER

DIGITAL

FILTER

DIGITAL

FILTER

DIGITAL

FILTER

RMC IN/OUT

DVD/VDP

TV/DBS

COMP-VIDEO

INPUT

DVD/VDP

TV/DBS

C-VIDEO INPUT

VCR1 OUT
VCR2 OUT

S-VIDEO INPUT

DVD/VDP

TV/DBS

VCR1 OUT
VCR2 OUT

VCR

VCR1
VCR2
V.AUX

VCR1
VCR2

V.AUX

ROM

128K X 8 128K X 8

DAI_P10(77)

DAI_P9(71)

DAI_P12(79)

DAI_P20(94)
DAI_P11(78)

FCX10-03

25MHz

RAM

DIGITAL AUDIO DECODER

ADSP-21266

CLK_IN(142)

+

DAC

+

+

DAC

+

+

DAC

+

+

DAC

+

IN

RMC GND

VIDEO SWITCH

VIDEO SWITCH BA7626

VIDEO SWITCH BA7626

INH

VIDEO SWITCH BA7626

VIDEO SWITCH BA7626

INH

MUTE

CXA1511M

DAI_P16(86)

SELECTOR

RELAY

DAI_P15(82)

DAI_P14(81)

74LVX157

OUT

DAI_P13(80)

Switched

INPUT

Y

C

-

-

SW F SUM

-

+5.6V

RMC DATA

Y

Cb

Cr

IC1001

2

15

LC74781

15

1

S-VIDEODET

4 14

IC1004

IC74781_19PIN
SEPOUT

COMPONENTDET

C-VIDEODET

IC606

OSD

5

3

9

TUNER PLL

13 4

Q1022

+5.6V

+5.6V

IC1001

DATA

-

-

-

TA1270

Y/Cb/Cr

13

12

IC74781_5PIN
BLANKOUT

IN/OUT

REMOTE CONT

IC1008

1

2

NJM2274R

Q1012

Q1028

9

IC1001

MONITOR OUT

u-COM

CXP 740010

DIGITAL AUDIO

CONTROL DATA

15

IC1007

C

53

RESONATOR

12MHz

Y

Cb

Cr

Y/C

MIX

Y

Q1027

13

4

ANA_IN

ANA_HFP

DSP_FL

EX_FL

ANA_IN

ANA_HFP

DSP_FR

EX_FR

SL

EX_SL

SR

EX_SR

CENTER

EX_C

SW

EX_SW

COMP-VIDEO

MONITOR OUT

TC90A69F

C

12

IC1004

14

Y/C

ÝÂ×î

KEY_MATRIX

Y

FLT DRIVER

DATA

AUDIO SWITCHING

TC9164

AMP

13

14

MONITOR OUT

12

IC1008

Q1014

AVR-2105/885 / AVC-1890

PRE OUT

FL
FR
C
SL
SR
SBL

FL DRIVER
LC75721NE

VOLUME

TC94A27UG

TC94A27UG

-36V

FLT

AVR

RELAY B+

FUNCTION,OP AMP

TUNER

7805

+5V(A/DPOWER)

FUNCTION,OP AMP

+5V (DSPPART PWR)

CODEC

VIDEO POWER

FL DISPLAY

16-ST-66GNK

POWER AMP

+

+

+

+

+

+

+

+

+

MUTE

MAIN +B

MAIN -B

7815

7915

7805

7806

RELAY

VIDEO POWER

VIDEO POWER

DSP

DIR

DSP

u-COM

FL DRIVER

7906

7809

1.2V

3.3V

FILAMENT AC

7805

POWER S/W(2ó-)

POWER S/W(1ó-)

SBR
SW

SPEAKER OUT

H/P OUT

+

FRONT A L

-

+

FRONT A R

-

+

FRONT B L

-

+

FRONT B R

-

+

SURR L

-

+

SURR R

-

+

CENTER

-

+

SBL

-

+

SBR

-

SPK A

SPK B

6

AVR-2105/885 / AVC1890

CAUTIONINSERVICING

●InitializingAVSURROUNDRECEIVER

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

1. Switchofftheunit.

2. HoldthefollowingSPEAKERS-Abuttonand
SPEAKERS-Bbutton,andswitchontheunit.

3. Checkthattheentiredisplayisflashingwith
anintervalofabout1second,andreleaseyour
fingersfromthe2buttonsandthemicroprocessor
willbeinitialized

Note:・Ifstep3doesnotwork,startoverfromstep1.
・Allusersettingswillbelostandthisfactorysetting
willberecoveredwhenthisinitializationmode.
Somakesuretomemorizeyoursettingfor
restoringaftertheinitialization.

サービス時の注意事項

●AVサラウンドアンプの初期化について

マイコンやマイコン周辺部品、DSP 基板等を交換した場
合は、AV サラウンドアンプの初期化を行って下さい。

1. オン／オフボタンを OFF にします。

2. SPEAKERS-Aボタンと SPEAKERS-Bボタンを同時
に押しながら、オン／オフボタンを押して ON に
します。

3. ディスプレイ表示が約 1秒間隔で点滅するのを
確認後、2つのボタンから指を離します。

●マイコンが初期化されます。

注意 :・上記 3 の状態にならない場合は、もう一度操作 1
   からやり直してください。
  ・初期化を行うとお客様が設定した内容が工場出荷
状態に戻りますので、あらかじめ設定内容を
控えておき初期化後再設定してください。

7

AVR-2105/885 / AVC-1890

ADJUSTMENT

Audio Section

Idling Current

Required measurement equipment : DC Voltmeter

調整に必要な測定器:直流電圧計

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.)

(1)セットをクーラ、扇風機のそばなど風通しの良い場所を避け、通常の使用状態に置きます。セットの周囲温度は

15〜30℃、湿度は常湿とします。

Adjustment

(1) Remove top cover and set VR101, VR102, VR103, VR104, VR105 on Amp. Unit, VR106,107 on SURR.-BACK ch Amp.

Unit at full counterclockwise (

(2) Connect DC Voltmeter to test points (FRONT-Lch: TP104, FRONT-Rch: TP105, CENTER ch: TP103,

SURROUND-Lch:TP101, SURROUND-Rch:TP102, SURROUND-BACK Lch:TP106, SURROUND-BACK Rch:TP107).

(3) Connect power cord to AC Line, and turn power switch "ON".

) position.

(4) Presetting. MASTER VOLUME : "---" counterclockwise (

min.)

MODE : 7CH 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.

(1)上カバーをはずし、パワーアンプ基板のVR101,VR102,VR103,VR104,VR105及びSurr.Backアンプ基板のVR106,107を

反時計方向( )に回し切った状態にセットします。

(2)テストポイント(FRONT‑Lch: TP104, FRONT‑Rch: TP105, CENTER ch: TP103, SURROUND‑Lch: TP101,

SURROUND‑Rch:TP102,SURROUND‑BACKLch:TP106,SURROUND‑BACKRch:TP107)に直流電圧計を接続します。
(3)電源コードをAC100V（95〜105Vの範囲でも可）に接続し、電源スイッチを"ON"にします。
(4)ＯＮ後、次のようにセットします。

●VOLUME（音量調節つまみ）→反時計方向( )に回す、最小の状態にする。

●SPEAKER‑A（スピーカ端子）→無負荷（スピーカ、ダミー抵抗器などを接続しない。）

MODE:7CHSTEREO  
FUNCTION:CD

(5)2分以内にVR101を時計方向(

)に回しテストポイントの電圧を次のように調整します。

1.5mV±0.5mVDC

(6)予備調整から10分後VR101を回し、次のように電圧を設定します。

2.5mV±0.5mVDC

(7)同じ方法で各チャネルの可変抵抗を調整します。

DC Voltmeter

F Lch

S Lch

S BR

S BL

C ch

S Rch

F Rch

VR104

TP104
VR101,TP101

VR107

TP107

TP106

VR106

VR103,TP103

VR102

TP102
VR105

TP105

8

Video Section (For U.S.A., Canada & Japan)

Component Video Level Adjustment

Required measurement equipment etc: Oscilloscope, DVD
VIDEO PLAYER (ex: DVD-1500)
Test Disc: DVD T-S01

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) Playback the color-bar 75% of the Test Disc (Title 12)

using the DVD Video Player, and check that Y and C
levels of the S terminal output are within the specified
output levels.
If they are out of the specified levels, adjust with the
variable resister inside of the unit.

(3) Presetting

 POWER (Power source switch) OFF
 SPEAKER (Speaker terminal) No load

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

 DVD (Video terminal) No input

Adjustment

(1) Remove top cover and set VR608, VR609, VR610 on

C-S VIDEO2 Unit at fully counterclockwise (

(2) Connect a pin-plug terminated with 75-ohms to Y(Cb,

Cr) of the Component Video Monitor Output, and hook
up the Oscilloscope's probe to both ends of the pin-plug.

(3) Connect S terminal output of the DVD Player with the

DVD input terminal of the Receiver.

(4) Connect power cord to AC Line, and turn power switch

"ON".

(5) Presetting

 FUNCTION: DVD


Playback the color-bar 75% of the Test Disc (Title 12)

(6) Turn VR610 clockwise (

COMPONENT VideoY voltage (except H.Sync) to 714
±50 mVp-p. (Refer to Fig.1)

(7) Adjust the Variable Resistors of Cr: VR609 and Cb:

VR608 in the same way. (Refer to Fig. 2, 3)

Cb,Cr: 486±50 mVp-p. (U.S.A. & Canada model)

525±50 mVp-p. (Others)

) to adjust the

).

AVR-2105/885 / AVC-1890

: Oscilloscope, DVD VIDEO PLAYER

(

: DVD-1500)

: DVD T-S01

(1)

15 30

(2) DVD VIDEO PLAYER

75 (Title12) S Y C

(3)

 OFF


( )

 DVD

(1) C-S VIDEO2

VR608, VR609, VR610

(2) Y(Cb, Cr) 75

Oscilloscope

(3) DVD VIDEO PLAYER S DVD

(4)

"ON"

(5) ON

 FUNCTION DVD

 75 (Title12)

(6) VR610 ( )

Y(H.Sync ) (Fig.1 )

714mV ±50mVp-p

(7)

Cr: VR609 Cb: VR608

(Fig.2 3 )

Cb,Cr: 525±50 mVp-p.

( )

9

Oscilloscope

CrY

Cb

VR610 VR608

VR609

AVR-2105/885 / AVC-1890

MONITOR OUT
(Y, Cb, Cr)

Video Section

10

AVR-2105/885 / AVC-1890

Volts

IRE:FLT

100.0

0.5

0.0

0.5

-20.0 -10.0 0.0

Volts

0.5

IRE:FLT

50.0

Y-Signal

714±50mV

p-p

10.0

20.0 30.0

Fig.1 Component Video Y signal

40.0 50.0 60.0

486±50mV (U.S.A. & Canada model)

p-p

0.0

-0.5

Volts

0.5

0.0

0.0

-50.0

0.0

IRE:FLT

50.0

0.0

-50.0

20.0

Fig.2 Cb signal

40.0

60.0

486±50mV (U.S.A. & Canada model)

80.0

p-p

-0.5

0.0

20.0

Fig.3 Cr signal

11

40.0

60.0

80.0

SEMICONDUCTORS

Onlymajorsemiconductorsareshown,generalsemiconductorsetc.areomittedtolist.

主な半導体を記載しています。汎用の半導体は記載を省略しています。



 IC’s



CXP740010
(IC201)

PC6

PC7

PA0

PA1

PA2

PA3

PA4

DDVSS

PK1/TX

PK2/TEX

PI1/RMC

PA5

PA6

PA7NCV

PI2/NMI

PI3/TO0/ADJ

PI4/INT1/CS1

PI5/SCK1

AVR-2105/885 / AVC-1890

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

999897969594939291

100

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

31

PH7

TOP VIEW

32333435363738394041424344454647484950

PH6

PH5

PH4

PH3

PH2

PH1

PH0

PK7/TO1

RST

908988878685848382

SS

V

XTAL

EXTAL

PK5/SI0

PK6/CS0

PK4/SO0

CXP740096 Terminal Function

PIN
No.

1 9274 STB O TC9274 CONTROL

2 9274 73 9164 CLK O TC9274/TC9273/TC9164 CLOCK

3 9274 73 9164 DATA O TC9274/TC9273/TC9164 DATA

4 FRONT MUTE O FRONT MUTE

5 9273 CE O TC9273 CONTROL

6 ERR_MUTE O ERR MUTE

7 ERR_MUTE_OFF O ERR MUTE OFF

8 BSE O DIGITAL SIGNAL MUTE

9 89057_EMPHA I LC89057 CONTROL

10 SW_SUM O SW SUMMING CONTROL

11 SHARC_SDIN I SHARC EX(DSP) DATA INPUT

12 89057_SDIN I LC89057 CONTROL

13 EPROM_RESET O EPROM RESET

14 89057_RESET O LC89057 RESET

15 SHARC_CS O SHARC EX(DSP) CS

16 SHARC_SDOUT O SHARC EX(DSP) DATA OUTPUT

17 89057_CE O LC89057 CONTROL

18 89057/1837_SDOUT O CONTROL DATA

19 89057/1837_SCLK O CONTROL CLOCK

20 1837_RESET O CODEC RESET

21 9164_STB O TC9164 CONTROL

22 SW_MUTE O SW MUTE

23 RELAY_SURR_B O SURROUND BACK RELAY

24 RELAY_FRONT_A O FRONT A RELAY

25 RELAY_SURR O SURROUND RELAY

26 RELAY_CNT O CENTER RELAY

PIN NAME I/O FUNCTION

81

80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51

PF5/AN9

PF7/AN11

PF6/AN10

PK3/SCK0

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
AV

DD

AV

REF

AV

SS

PF4/AN8

12

AVR-2105/885 / AVC-1890

PIN
No.

27 RELAY_H/P O RELAY H/P

28 FUNC_UP O ENCODER INPUT (FUNCTION)

29 H/P_DETECT I DETECT H/P

30 FUNC_DOWN O ENCODER INPUT (FUNCTION)

31 SURR_SB_MUTE O SURROUND BACK MUTE

32 CNT_MUTE O CENTER MUTE

33 TA1270_TC90A69F_CLK O TA1270/TC90A69F CONTROL

34 SURR_MUTE O SURROUND MUTE

35 NC - -

36 MULTI SB RLY O ZONE2/SURROUND BACK : SELECTION RELAY

37 RELAY_FRONT_B O FRONT B RELAY

38 FL_DRV_RST O LC75721 RESET

39 RELAY_POWER O POWER RELAY

40 RESET I RESET

41 GND - GND

42 XTAL - OSILATOR CONECTION

43 EXTAL - OSILATOR CONECTION

44 FL_DRV_CE O LC75721 CE

45 FL_DRV_DATA O LC75721 DATA

46 FL_DRV/2090_CLK O LC75721/BU2090 CLOCK

47 2090_DATA O BU2090 DATA

48 VOL_DOWN I ENCODER INPUT (VOLUME)

49 VOL_UP I ENCODER INPUT (VOLUME)

50 SEL_DOWN I ENCODER INPUT (SELECTOR)

51 SEL_UP I ENCODER INPUT (SELECTOR)

52 AVSS - AVSS

53 VREF - VREF

54 AVDD - AVDD

55 89057_INT - LC89057 INT

56 TA1270_TC90A69 DATA O TA1270/TC90A69 DATA

57 GREEN_LED O GREEN LED

58 SET_OPT I MODEL SELECT

59 STEP_OPT I AREA SELECT

60 KEY_IN3 I KEY INPUT

61 KEY_IN2 I KEY INPUT

62 KEY_IN1 I KEY INPUT

63 PWR_DOWN I POWER DOWN DETECT

64 PROTECT I PROTECTION

65 C-VIDEO_DET I Composit Signal Detect input

66 SHARC_SCLK O SHARC EX(DSP) SCLK

67 1837_CE O CODEC CE

68 SHARC_RESET O SHARC EX(DSP) RESET

69 FRONT_MUTE O FRONT MUTE

70 STBY_LED O STANDBY LED

71 NC - -

72 NC - -

73 74781 CS - LC74781 CONTROL ENABLE

74 74781 SCLK O LC74781 CONTROL CLOCK

75 SURR_BACK_MUTE O SURROUND BACK MUTE

76 2090 CLK2 O BU2090 CLOCK2(VIDEO)

77 RDS_DATA I TDA7330 CONTROL DATA

78 RDS_CLK I TDA7330 CLOCK DATA

79 FLAG3 I Special flag for ROM updata

80 FLAG2 I DSP operation check flag

81 FLAG1 I NON USE

82 FLAG0 I EPROM chip select control for DSP

83 MULTI MUTE O MULTI MUTE

84 S-VIDEO_DET I S Signal Detect input

85 REMOCON I REMOTE CONTROL SIGNAL INPUT

86 COPM_DET I Compornent Signal input

PIN NAME I/O FUNCTION

13

AVR-2105/885 / AVC-1890

PIN
No.

87 OVERLOAD I OVERLOAD DETECT

88 VSS - VSS

89 VDD(BACK UP) - VDD FOR BACK UP

90 NC - -

91 TC94A27UG_STB - TC94A27UG CONTROL

92 TC94A27UG_PLL_DATA O PLL CONTROL (LC72131),DATA (TC94A27UG)

93 TC94A27UG_PLL_CLK O PLL CONTROL (LC72131),CLOCK (TC94A27UG)

94 PLL_DT_IN I PLL CONTROL (LC72131)

95 TU_MUTE O TUNER MUTE

96 ST I STEREO DETECT

97 TUNED I TUNE DETECT

98 PLL_CE O PLL CONTROL (LC72131)

99 2090_CLK1 O BU2090 CLOCK(VIDEO)

100 2090_74781_DATA O BU2090/LC74781 CONTROL DATA(VIDEO)

PIN NAME I/O FUNCTION

14

ADSP-21266SKSTZ-2B (IC804)

AVR-2105/885 / AVC-1890

144

1

PIN 1 INDICATOR

109

108

TOP VIEW

36

37

73

72

ADSP-21266SKSTZ-2B Terminal Function

LQFP

Pin Name

V

DDINT

Pin # Pin Name

1V

DDINT

CLKCFG0 2 GND 38 GND 74 V
CLKCFG1 3 RD 39 V
BOOTCFG0 4 ALE 40 GND 76 V

LQFP
Pin # Pin Name

37 V

DDEXT

DDINT

LQFP
Pin # Pin Name

LQFP
Pin #

73 GND 109

DDINT

110

75 GND 111

DDINT

112
BOOTCFG1 5 AD15 41 DAI_P10 (SD2B) 77 GND 113
GND 6 AD14 42 DAI_P11 (SD3A) 78 V
V

DDEXT

7 AD13 43 DAI_P12 (SD3B) 79 GND 115
GND 8 GND 44 DAI_P13 (SCLK23) 80 V
V

DDINT

9V

DDEXT

45 DAI_P14 (SFS23) 81 GND 117
GND 10 AD12 46 DAI_P15 (SD4A) 82 V
V

DDINT

11 V

DDINT

47 V

DDINT

83 GND 119
GND 12 GND 48 GND 84 V
V

DDINT

13 AD11 49 GND 85 RESET 121

DDINT

DDEXT

DDINT

DDINT

114

116

118

120

GND 14 AD10 50 DAI_P16 (SD4B) 86 SPIDS 122
FLAG0 15 AD9 51 DAI_P17 (SD5A) 87 GND 123
FLAG1 16 AD8 52 DAI_P18 (SD5B) 88 V

DDINT

124
AD7 17 DAI_P1 (SD0A) 53 DAI_P19 (SCLK45) 89 SPICLK 125
GND 18 V
V

DDINT

19 GND 55 GND 91 MOSI 127

DDINT

54 V

DDINT

90 MISO 126

GND 20 DAI_P2 (SD0B) 56 GND 92 GND 128
V

DDEXT

21 DAI_P3 (SCLK0) 57 V

DDEXT

GND 22 GND 58 DAI_P20 (SFS45) 94 V
V

DDINT

23 V

AD6 24 V

DDEXT

DDINT

59 GND 95 A
60 V

DDINT

93 V

96 A

DDINT

DDEXT

VDD

VSS

129

130

131

132
AD5 25 GND 61 FLAG2 97 GND 133
AD4 26 DAI_P4 (SFS0) 62 FLAG3 98 CLKOUT 134
V

DDINT

27 DAI_P5 (SD1A) 63 V

DDINT

99 EMU 135
GND 28 DAI_P6 (SD1B) 64 GND 100 TDO 136
AD3 29 DAI_P7 (SCLK1) 65 V
AD2 30 V
V

DDEXT

31 GND 67 V

GND 32 V

DDINT

DDINT

66 GND 102 TRST 138

68 GND 104 TMS 140

AD1 33 GND 69 V

DDINT

DDINT

DDINT

101 TDI 137

103 TCK 139

105 GND 141
AD0 34 DAI_P8 (SFS1) 70 GND 106 CLKIN 142
WR 35 DAI_P9 (SD2A) 71 V
V

DDINT

36 V

DDINT

72 V

DDINT

DDINT

107 XTAL 143

108 V

DDEXT

144

15

AD1837 (IC808)

DVDD

CLATCH

CIN

PD/RST

AGND

NC

OUTL1

NC

OUTR1

AGND

AVDD

NC

OUTL2

DGND

CCLK

COUT

ASDATA

ODVDD

MCLK

ALRCLK

ABCLK

ADCLP

ADCLN

DSDATA4

ADCRN

50 494847 46 45 44 43 42 41 40

51

52

1

2

3

4

5

6

7

8

9

10

11

12

13

14 15 16 17 18 19 20 21 22 23 24 25 26

NC

OUTR2

TOP VIEW

FILTD

FILTR

AGND

AVDD

DSDATA3

DSDATA2

AGND

ADCRP

DGND

DSDATA1

NC

OUTL3

39

38

37

36

35

34

33

32

31

30

29

28

27

AVR-2105/885 / AVC-1890

DVDD

DBCLK

DLRCLK

M/S

AGND

OUTR4

NC

OUTL4

NC

AGND

AVDD

OUTR3

NC

MCLKASDATAABCLKALRCLKODVDDDVDD DVDD

PD/RST M/S AVDD AVDD

CLOCK

DIGITAL
FILTER

DIGITAL
FILTER

DIGITAL
FILTER

DIGITAL
FILTER

DescriptionPin No.

V

Σ-∆

DAC

Σ-∆

DAC

Σ-∆

DAC

Σ-∆

DAC

REF

OUTL1

OUTR1
OUTL2

OUTR2
OUTL3

OUTR3
OUTL4

OUTR4
FILTD
FILTR

DLRCLK

DBCLK

DSDATA1

DSDATA2

DSDATA3

DSDATA4

ADCLP

ADCLN

ADCRP

ADCRN

AD1837 Terminal Function

Pin Name

Σ-∆

ADC

Σ-∆

ADC

AD1837

Input/

Output

SERIAL DATA

DIGITAL
FILTER

DIGITAL
FILTER

I/O PORT

CINCLATCHCCLK COUT

CONTROL PORT

VOLUME

VOLUME

VOLUME

VOLUME

VOLUME

VOLUME

VOLUME

VOLUME

DGND AGND AGND AGND AGNDDGND

1,39 DVDD Digital Power Supply. Connect to digital 5V supply.
2 CLATCH I Latch Input for Control Data
33 CIN I Serial Control Input
4 PD/RST I Power-Down/Reset
5,10,16,24,30,35 AGND Analog Ground
6,12,25,31 NC Not connected
7,13,26,32 OUTLx O DACx Left Channel Output
8,14,27,33 NC Not connected
9,15,28,34 OUTRx O DACx Right Channel Output
11,19,29 AVDD Analog Power Supply. Connect to analog 5V supply.
17 FILTD Filter Capacitor Connection. Recommend 10µF/100nF.
18 FILTR Reference Filter Capacitor Connection. Recommended 10µF/100nF.
20 ADCLN I ADC Left Channel Negative Input
21 ADCLP I ADC Left Channel Positive Input
22 ADCRN I ADC Right Channel Negative Input
23 ADCRP I ADC Right Channel Positive Input
36 M/S I ADC Master/Slave Select
37 DLRCLK I/O DAC LR Clock
38 DBCLK I/O DAC Bit Clock
40,52 DGND Digital Ground
41-44 DSDATAx I DACx Input Data (Left and Right Supply)
45 ABCLK I/O ADC Bit Clock
46 ALRCLK I/O ADC LR Clock
47 MCLK I Master Clock Input
48 ADVDD Digital Output Driver Power Supply
49 ASDATA O ADC Serial Data Output
50 COUT O Output for Control Data
51 CCLK I Control Clock Input for Control Data

16

LC89057W (IC807)

AVR-2105/885 / AVC-1890

RXOUT

RX0
RX1
RX2
RX3

RX4
RX5/VI
RX6/UI

LPF

TMCK/PIO0

TBCK/PIO1

TLRCK/PIO2

TDATA/PIO3

TXO/PIOEN

1

2
3
4
5
8
9

10

13

44
45
46
47

48

EMPHA/UO33AUDIO/VO35INT40CL39CE38DI

32

Clock

Selector

27

Microcontroller

Input

Selector

Modulation

or

Parallel Port

29

XIN

C bit, U bit

Demodulation

&

Lock Detect

PLL

28

XOUT

XMCK34CKST

I/F

Data

Selector

I/N

XMODE
41

37

36

21

24

16
17

20
22
23

DO

RERR

RD ATA

SDIN

RMCK
RBCK
RLRCK
SBCK
SLRCK

36 RERR1RXOUT

35 INT2RX0

34 CKST3RX1

TOP VIEW

33 AUDIO/VO4RX2

32 EMPHA/UO5RX3

31 DGND6DGND

30 DVDD7DVDD

29 XIN8RX4

28 XOUT9RX5/VI

27 XMCK10RX6/UI

26 DVDD11DVDD

25 DGND12DGND

24 SDIN37DO
23 SLRCK38DI
22 SBCK39CE
21 R DATA40CL
20 RLRCK41XMODE
19 DVDD42DGND
18 DGND43DVDD
17 RBCK44TMCK/PIO0
16 RMCK45TBCK/PIO1
15 AGND46TLRCK/PIO2
14 AVDD47TDATA/PIO3
13 LPF48TXO/PIOEN

LC89057W Terminal Function

Pin
No.

1 RXOUT O Input bi-phase select data output terminal

2 RX0 I TTL compatible digital data input terminal

3 RX1 I Coaxial compatible amp built-in digital data input terminal

4 RX2 I TTL compatible digital data input terminal

5 RX3 I TTL compatible digital data input terminal

6 DGND — Digital GND

7 DVDD — Digital power

8 RX4 I TTL compatible digital data input terminal

9 RX5/VI I TTL compatible digital data/Validity flag input terminal for modulation

10 RX6/UI I TTL compatible digital data/User data input terminal for modulation

11 DVDD — Digital power for PLL

12 DGND — Digital GND for PLL

13 LPF O PLL loop filter connecting terminal

14 AVDD — Analog power for PLL

15 AGND — Analog GND for PLL

16 RMCK O RMCK clock output terminal (256fs, 512fs, XIN, VCO)

17 RBCK O/I RBCK clock in/output terminal (64fs)

18 DGND — Digital GND

19 DVDD — Digital power

20 RLRCK O/I RLRCK clock in/output terminal (fs)

21 RDATA O Serial audio data output terminal

22 SBCK O SBCK clock output terminal (32fs, 64fs, 128fs)

23 SLRCK O SLRCK clock output terminal (fs/2, fs, 2fs)

24 SDIN I Serial audio data input terminal

25 DGND — Digital GND

26 DVDD — Digital power

27 XMCK O Osc. amp output terminal

Pin Name

I/O

Function

17

AVR-2105/885 / AVC-1890

Pin
No.

Pin Name I/O

Function

28 XOUT O X’tal osc. connecting output terminal

29 XIN I X’tal osc. connection, external clock input terminal (24.576MHz or 12.288MHz)

30 DVDD — Digital power

31 DGND — Digital GND

32 EMPHA/UO I/O Emphasis information/U-data output/Chip address setting terminal

33 AUDIO/VO I/O Non-PCM detect/V-flag output/ Chip address setting terminal

34 CKST I/O Clock switch transition period output/Demodulation master or slave function switching terminal

35 INT I/O Interrupt output for µcom (Interrupt factor selectable)/Modulation or general I/O switching terminal

36 RERR O PLL lock error, data error flag output

37 DO O µcom I/F, read out data output terminal (3-state)

38 DI I µcom I/F, write data input terminal

39 CE I µcom I/F, chip enable input terminal

40 CL I µcom I/F, clock input terminal

41 XMODE I System reset input terminal

42 DGND — Digital GND

43 DVDD — Digital power

44 TMCK/PIO0 I/O 256fs system clock input for modulation/General I/O in/output terminal

45 TBCK/PIO1 I/O 64fs bit clock input for modulation/General I/O in/output terminal

46 TLRCK/PIO2 I/O fs clock input for modulation/General I/O in/output terminal

47 TDATA/PIO3 I/O Serial audio data input for modulation/General I/O in/output terminal

48 TXO/PIOEN O/I Modulation data output/ General I/O enable input terminal

* For latch-up countermeasure, perform each power supply ON/OFF in the same timing.

TC94A27UG (IC201T, 202T)

L‑MVR‑AGNDA2

NC

34

L‑MVR‑AGNDARE

35

L‑MVR‑AGNDARE

36

L‑MVR‑AGNDB1

37

L‑MVR‑AGNDB2

38

L‑MVR‑OUTB

39

L‑TVR‑OUTB

40

L‑TVR‑1NB

41

L‑TVR‑REFB

42

L‑MVR‑1NB

43

NC

44

L‑TVR‑OUTA

L‑TVR‑REPA

31

3233

L‑TVR‑INA

Latch

Latch

Latch

Latch Latch

Test&
autoclearcircuit

30

29

L‑MVR‑INA

Decodercircuit

Timing
generating
circuit

NC

26

27

28

R‑MVR‑INA

LatchLatch

Decodercircuit

24bitshiftregister 

Levelshiftcircuit

25

R‑TVR‑REF

24

R‑TVR‑INA

Latch

LatchLatch Latch

R‑MVR‑OUTA

23

R‑TVR‑OUTA

Latch

NC

22

R‑MVR‑AGNDA2

21

R‑MVR‑AGNDA1

20

R‑MVR‑AGNDB1

19

R‑MVR‑AGNDB2

18

R‑MVR‑OUTB

17

R‑TVR‑OUTB

16

R‑TVR‑1NB

15

R‑TVR‑REFB

14

R‑MVR‑1NB

13

NC

12

TEST

VDD

CS1

CS2

MUTEM

18

GND

MUTE

CK

87654321

9

STB

DATA

VSS

1110

AS7C34096A-10TC (IC806, 817)

Top View

1

44

NC

43

2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

NC

42

NC

A

41

18

A

40

17

A

39

16

A

38

15

37

OE
I/O

36

7

I/O

35

6

V

34

SS

V

33

CC

I/O

32

5

I/O

31

4

A

30

14

A

29

13

A

28

12

A

27

11

A

26

10

25

NC

24

NC

23

NC

I/O
I/O
V
V
I/O
I/O

WE

NC
NC

CE

NC
NC

A

0

A

1

A

2

A

3

A

4

0

1

CC

SS

2

3

A

5

A

6

A

7

A

8

A

9

WE

OE

AVR-2105/885 / AVC-1890

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

0

1

2

3

4

5

6

7

INPUT BUFFER

A

0

A

1

A

2

A

3

A

4

A

5

A

6

A

7

A
A

A

ROW DECODER

8
9

10

512K x 8

ARRAY

COLUMN

DECODER

11

12

A

A13A

14

ACEA

SENSE AMPS

POWER

DOWN

15

16

17

18

A

A

A

TC90A69F (IC1009)

COUT

VSS1

YOUT

VB2

27

26

25

DAC

CORING

PEAKING

VDD1

24

4

TESTI1

LPF

5

VSS2

28

DAC

INTERPOLATION

1

2

VRT

BIAS VB1

(8fsc)

3

PD

23

22

PLL DET 1/2VCO

1/8

Ped.

CLIP

ADC

6

7

VRB

FIL

21

8fsc 4fsc

KILLER

Sync. Clamp

8

YCIN

VSS4

20

TEST

VDD4

19

DELAY

CNR

C-N.C

9

10

KILLER

FSC

TESTI2

TESTOUT

MODE1

SDA

18

17

16

IIC BUS

CORING V-ENHANCER

LINE

LINE

MEMORY

MEMORY

DYNAMIC COMB FILTER

11

12

13

VSS3

VDD3

VDD2

SCL

15

14

TESTI3

NJM2274R (IC1007)

1

2

3

4

Power Save CTL

1Yin

Cin

8 Bias

Clamp

Disc.

C Mute CTL

TOP

VIEW

7

7

Vref

8

7

6

5

Vcc

2

+

GND

+

2

750
ohm

3 Vout

Vsag4

19

TA1270BF (IC1154)

DAC237Y OUTPUT36GND35DAC

38

Y OFFSETSWDAC

DAC1

Y INPUT

DAC Vcc (5V)

C Vcc (5V)

UV/CbCr SW

fsc OUTPUT

1HDL CONT

SECAM CONT

B-Y/Cb OUTPUT

R-Y/Cr OUTPUT

DAC2

39

DAC1

40

PEDESTAL

CLAMP

41

42

43

44

fsc

1H DL

45

CONTROL

SECAM

46

CONTROL

47

CbCr / UV

SW

48

1

4.43MHz

TEST

SUB-

CONTRAST

fsc

Y DL

TRAP

SYSTEM

LPF / fsc

TRAP

BPF H. AFC H C / D

VCXO

2

3

X’tal

4

X’tal

M-X’tal

3.58MHz

TEST34SDA33SCL32Ys

I2C BUS

CONTROL

Y DL

SW

CW

MATRIX

P / N ID

SW

TOF

APC

ACC

SUB-COLOR

5

APC

C GND

6

OUTPUT

CHROMA

(TH=0.7V

HI; 1IN/LOW; 2IN)31R-Y1

Ys

TINT

DEMO

CHROMA

BLK

V SEP

7

V-SEP

SYNC
SEP

OFFSET

SW

8

INPUT

SYNC.

INPUT30B-Y1

PEDESTAL

CLAMP

9

SYNC.

INPUT29Y1

YUV RGB

NOSE

DET

10

AFC

OUTPUT

MATRIX

FILTER

INPUT28I

C

2

11

SYNC.

GND

GND

R-Y2

27

SW

32fH
VCO

12

32fh VCO

INPUT26B-Y2

PEDESTAL

CLAMP

13

VD

V C / D

INPUT25Y2

INPUT

HI: 20h/LOW: 24h

SW

CP / HP

IN

SCP

14

HD

OUTPUT

OUTPUT

24

23

22

21

20

19

18

17

16

15

SW GND

ADRS SW

R-Y/R
OUTPUT

B-Y/B
OUTPUT

Y/G
OUTPUT

SW
Vcc (9V)

SYNC
Vcc (9V)

CP/HP
INPUT

Dig GND

SCP
OUTPUT

AVR-2105/885 / AVC-1890

TC9274N-011 (IC701)

S1S2S3S4S5S6S7S8S9

41

40

VDD

42

V

SS

1

2

345678 9 10 111213 14

S1S2S3S4S5S6S7S8S9

36

3839

37

35

18 bit Latch Circuit (Rch)

TC9273N-004 (IC705)

Vss

1

S1

2

S2

3

4

S3

S4

5

6

S5

7

S6

S7

8

9

S8

10

S9

11

S10

12

S10

V

DD

28

S1

27

S2

26

25

S3

S4

24

23

S5

22

S6

S7

21

20

S8

19

S9

18

17

S10

32

34

33

(Lch) Same as Rch

S10

TC9273N Terminal Function

S11

S12

S13

S14

29

28

3031

15

S11

S12

S13

S14

Symbol Name

Pin No

1

13

28

2~12

S1~S10

12~27

14

15

16

S15

S16

26

25

27

16 171819

S15

S16

Vss

GND

V

DD

CK

DATA

STB

S17

S18

24

23

STB

22

DATA

21

CK

Level Shift + Shift Register Circuit

20

GND

S17

S18

+Power Terminal

Digital Ground

+Power Terminal

I/O Terminal

Clock Input

Data Input

BU2090F (IC302, 1003, 1005)

1

VSS

DATA

CLOCK

LCK

Q0

Q1

Q2

2

3

4

5

6

7

CONTROL CIRCUIT

12-bi t SHIFT REGI STER

12- bi t ST RAGE REGI STER

OUTPUT BUFFER (OPEN DRAIN)

8

9

Q4

Function

Dual Power Use:VDD = 8.0~17 V Single Power Use:VDD = 8.0~18V

GND=0V

Vss=-8.0~-17V

Input terminal of analog switch.

Clock input for data transfer.

Serial input for switch setting.

Strobe InputStrobe input for data writing.Strobe Input

18

17

16

15

14

13

12

11Q3

10

GND=0V

VDD

OE

Q11

Q10

Q9

Q8

Q7

Q6

Q5

Low level

Border Input

Terminal

13

GND

14

CK

STB

DATA

16

15

20

BU4052BCF
(IC601D,602D)

Truth Table

Y

Y

COMMON Y

Y

Y

INH

V

EE

Vss

0

1

Y

2

3

1

0

2

Y

2

YOUT

3

/IN

XOUT

4

Y3

5

1

Y

6

INH

7

EE

V

B

8

V

DD

16

X

2

15

X

2

14

X

1

X

1

13

COMMON X

/IN

X

0

0

X

12

X

3

11

3

X

10

A

A

9

B

INH B ON SwitchesA

L
L
L
L
H

L
H

MM74HC4053MX (IC1001, 1004, 1008)

Truth Table

Y1
Y0
Z1

Z0

Enable

EE

V

GND

1

2

3

4

Z

5

6

7

8

16

Vcc

15

Y

14

X1

13

X

12

X0

11

C

10

A

9

B

Control Inputs

Select

Enable C B A

L L L L Z0 Y0 X0
L L L H Z0 Y0 X1
L L H L Z0 Y1 X0
L L H H Z0 Y1 X1
L H L L Z1 Y0 X0
L H L H Z1 Y0 X1
L H H L Z1 Y1 X0
L H H H Z1 Y1 X1

H X X X None

X

L
L

X1 Y

HL

X2 Y

HH

X3 Y

X NONEX

X = Don’t Care

ONSwitches

X = Don’t Care

AVR-2105/885 / AVC-1890

0

Y

0

1

2

3

BA7626 (IC1000, 1002, 1150-1153)

Monitor OUT

GND

IN5

GND

IN4

CTL E

IN3

7

CTL D

8

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).

LOGIC

6dB

LOGIC

6dB

16

IN1

CTL A

15

V OUT1

14

Vcc

13

12

IN2

CTL B

11

V OUT2

10

CTL C

9

ABE

MONIT OR OUT

LL* IN 1

HL * IN 2

LH* IN 3

HHL IN 4

HHH IN 5

C D E V OUT 1

LL*



HL * IN 2

LH* IN 3

HHL IN 4

HHH IN 5

C D E V OUT 2

LL* IN 1

HL *



LH* IN 3

HHL IN 4

HHH IN 5

21

LC74781 (IC1006)

PinNo. Symbol Name

1VSS1GND

2 XtalIN Xtaloscillation

3 XtalOUT Xtaloscillation

4 CTRL1 Xtaloscillationinputswitching

5BLANKBlankoutput

6 OSCIN LCoscillation

7 OSCOUT LCoscillation

8 CHARA Characteroutput

9 CS Enableinput

10 SCLK Clockinput

11 SIN Datainput

12 VDD2 Power

13 CVOUT VIDEOsignaloutput

14 NC

15 CVIN VIDEOsignalinput

16 VDD1 Power

17 SYNIN Sync.separatecircuitinput

18 SEPC Sync.separatecircuitbiasvoltage

19 SEPOUT Complexsync.signaloutput

20 SEPIN Verticalsync.signalinput

21 CTRL2 NTSC/PAL-Mswitchinginput

22 CTRL3 SEPINinputcontrol

23 RST Resetinput

24 VDD1 Power(+5V)

AVR-2105/885 / AVC-1890

SCLK

VDD1

VSS1

VDD2

CHARA

OSCIN

OSCOUT

SYNIN

SEPC

SEPOUT

SEPIN

CTRL3

SIN

RST

9

CS

11

10

23

24

12

17

18

19

20

22

Serial

parallel

converter

1

8

Horizontal

6

character

7

size

register

Horizontal

character

size

register

8-bits

latch

+

command

decoder

Horizontal

character

size

register

Horizontal

character

size

register

Horizontal

character

size

register

Horizontal

size

counter

Vertical

character

size

register

Vertical

size

counter

Timing generator

4

CTRL1

Horizontal

display

position

register

Horizontal

dot

counter

Blinking

and inversion

control

register

Character

control

counter

Vertical

display
position
register

Vertical

dot

counter

Blinking

and inversion

control
register

Line

control
counter

Synchronization
signal generator

21 2 3 5 15 13

XtalIN XtalOUT BLANK CVIN CVOUTCTRL2

Blinking

and inversion

control

register

Blinking

and inversion

control

circuit

Character output control

Background control

Video output control

Display

control

register

RAM
write

adress

counter

Decoder

Display

RAM

Decoder

Font

RAM

Shift

register

22

74LVX157
(IC810)

AVR-2105/885 / AVC-1890

SE

LECT

GND

1

1A

1B

1Y

2A

2B

2Y

SEL

2

3

4

5

5

6

7

8

16

15

14

13

12

11

10

Vcc

ST

4A

4B

4Y

3A

3B

9

3Y

SN74LVC139APWR (IC820)

1

16

1G
1A

1B
1Y0
1Y1
1Y2
1Y3

GND

2

3

4

5

6

7

8

V

CC

15

2G

14

2A

13

2B

12

2Y0

11

2Y1

10

2Y2

9

2Y3

G

G

L L L H H H L

L L HHHLH

L H LHLHH

L H HLHHH

H X X H H H H

FUNCTION TABLE

(each decoder/demultiplexer)

INPUTS

SELECT

B A Y3 Y2 Y1 Y0

OUTPUTS

OUTPUTS

●LED

SML1216W (LED901)

RED GREEN

23

FL DISPLAY

16-ST-66GNK

AVR-2105/885 / AVC-1890

1

TUNED

STEREO

RDS

CH

G16

TUNED

RDS

CH

G15 G13

STEREO

AUTO

Pin Assignment

AUTO

G14

ZONE2

REC

ZONE2

REC

PHONO

VCR

G12

PHONO

VCR

G11

CD

-

1

G10

CD

-

TUNER

-2-

TUNER

-2-

1

AUX

3 V.AUX

G9

3

G8

DVD /
CDR

G7

AUX

V.AUX

VDP TV

TAPE

/

G6

DVD /
CDR

G5

/

-1-

G4

VDP

TAPE

/

2

DBS

DIGITAL

G3

TV

-1-

PRO LOGICII
DIGITAL

ANALOG

G2

DBS

/

2

DIGITAL

58

G1

PRO LOGICII
DIGITAL

ANALOG

S38

S1

S6

S11

S16

S21

S26

S31

S14

S13

S9

S10

S15

S11

S12

G2~G16

S2

S3

S8

S7

S12

S13

S17

S18

S22

S23

S27

S28

S32

S33

G1

S9

S14

S19

S24

S29

S34

S1

S6

S2

S7

S5

S3

S4

S4

S5

S10

S15

S20

S25

S30

S35

PIN NO.
CONNECTION

PIN NO.
CONNECTION

PIN NO.
CONNECTION

12345

F1 F1 S1 S2 S3
21 22

23 24 25

S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 S36 S37 S38

41 42 43 44 45

G16 G15 G14 G13 G12 G11 G10 G9 G8 G7 G6 G5 G4 G3 G2 G1 F2 F2

Anode & Grid Assignment

G1

G2~G16

S1
S2

S3
S4
S5
S6
S7
S8
S9

TV

VDP

2

-

1

TAPE

S36
S37
S38

S1
S2
S3
S4
S5
S6
S7

S1
S2
S3
S4
S5
S6

S7
S8
S9

S9

G1 G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15

/

-

S38

DBS

S10
S11

S12
S13
S14

S15
S16
S17

S18

/(DVD)

/(MD)

7 8 9 10 11 12 13 14 15 16 17 18 19

6

S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15

S4

27 28 29 30 31 32 33 34

26

47 48 49 50 51 52 53 54 55 56 57

46

G1
S10
S11

S12

S13
S14

S15

DIGITAL

PRO LOGICII

AUXDVD

CDR

V.AUX

G2~G16

S10
S11

S12
S13
S14
S15
S16
S17
S18

S19

S20

S21
S22
S23
S24
S25
S26
S27

TUNER

-

2

-

3

CD

-

G1

G2~G16

S19
S20
S21
S22
S23
S24

S25
S26
S27

PHONO

1

VCR

ZONE2

S16 S17

35 36 37 38 39 40

58

F1, F2 : Filament
G1~G16 : Grid
S1~S38 : Anode

G1

G2~G16
S28
S29

S30
S31
S32
S33
S34
S35

S28
S29
S30
S31

S32
S33

S34
S35

G16

REC

STEREO

AUTO

TUNED

RDS

CH

20

S18

24

PRINTED WIRING BOARDS

MAIN P.W.B. UNIT

AVR-2105/885 / AVC-1890

25

COMPONENT SIDE

AVR-2105/885 / AVC-1890

26

FOIL SIDE

CPU, FRONT P.W.B. UNIT

JP318

J35

J

3

AVR-2105/885 / AVC-1890

COMPONENT SIDE

27

AVR-2105/885 / AVC-1890

28

FOIL SIDE

CNT, PRE-AMP P.W.B. UNIT

AVR-2105/885 / AVC-1890

29

COMPONENT SIDE

AVR-2105/885 / AVC-1890

30

FOIL SIDE