Denon AVC-1880, AVR-1804, AVR-884 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-1804/884
AVC-1880
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.
16-11, YUSHIMA 3-CHOME, BUNKYO-KU, TOKYO 113-0034 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。
X0173V.02 DE/CDM 0310
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
2AVR1804/884 / AVC-1880
(1)
(2)
(1)
(2)
2
LEVEL DIAGRAMS
FRONT/CENTR/SURROUND/SURROUND BACK
AVR-1804/884 / AVC-1880
3
6CH IN
DIGITAL
CD IN
6CH IN
40dB
30dB
20dB
10dB
0dB
(200mV)
-10dB
-20dB
INPUT
BUFFER
AMP
+---A/D
A/D IN
REV AMP
A/D IN
A/D IN
REV AMP
REV AMP
DIR
FRONT
A/D
0dBFS
6CH IN
CD IN
-12dB
-10dBFS
-20dBFS
-30dBFS
D/A OUT
LPF
HPF
+
DSP D/A ----
D/A
0dBFS
-10dBFS
-20dBFS
-30dBFS
D/A OUT
100mV REF
+
MUTE
6dB
REV AMP
SW SUM
REV AMP
SUM S/W
-18dB
ELECTRIC
VOLUME
PRE AMP TONE POWER AMP
+
15.5dB
VOL 00
MUTE
25.5dB
ATT H/P OUT
-35.5dB
SPK OUT
FRONT
SPK OUT
FRONT
2.83V
(1W/8ohm)
H/P OUT
47mV
(1W 8ohm)
6CH IN
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
0dB
-20dBFS
-23dBFS
-30dBFS
D/A OUT
100mV REF
D/A OUT
70.8mV REF
6dB
MUTE
CENTER
SURR/SB
6dB
-15dB
-18dB
15.5dB
VOL 00
MUTE
25.5dB
SPK OUT
2.83V
(1W/8ohm)
3
SUB WOORER
AVR-1804/884 / AVC-1880
4
6CH IN
SUB_WOOFER
6CH INPUT
30dB
20dB
10dB
OdB
(200mV)
-5dB
(112mV)
-10dB
-20dB
-30dB
0dBFS
-10dBFS
-20dBFS
Config2 -28dBFS
-30dBFS
Config1 -38dBFS
D/A OUT
LPF
+D/A
MUTE
D/A
Front D/A Out
200mV ref
6dB
LFE
6dB
6dB
LFE
REV AMP
10.5dB
10dB
SW SUM
REV AMP
----DSP OUT
TO FRONT CH
-15dB
ELECTRIC
VOLUME
VOL 00
PRE AMP
+
21.5dB
MUTE
SUB WOOFER
PRE OUT
SUB WOOFER
PRE OUT
150mV
4
BLOCK DIAGRAM
AVR-1804/884 / AVC-1880
5
DIGITAL OUT
DIGITAL IN
ANALOG IN
(JAPAN ONLY)
ANALOG OUT
CDR/TAPE OUT
6CH_INPUT
TV/DBS
DVD/VDP
D-VIDEO INPUT
JAPAN ONLY
OPTICAL_1
OPTICAL_2
OPTICAL_3
OPTICAL_4
COAXIAL
PHONO
CDR/TAPE
DVD/VDP
TV/DBS
VCR1
VCR2
V.AUX
TUNER
VCR1 OUT
VCR2 OUT
MULTI OUT
E3 ONLY
FM ANT
AM ANT
LINE_1
LINE_2
LINE_3
LINE_1
LINE_2
LINE_3
ROM
512K X 8
TCLK2(47)
TCLK1(65)
RCLK1(68)
RFS1(69)
PF6(41)
RCLK0(61)
TCLK0(57)
DR1(67)
DR0(60)
INPUT
DIR
LC89057W-VF4
DEMODULATION
Lock DetectSelector
&
XMCK
DATA
Selector
BUFFER
74LV244
64fs
64fs
RBCK(17)
fs
RLRCK(20)
RMCK(16)256fs
64fs
fs
fs
256fs
RDATA(21)
FL/FR/C/SL/SR/SW/SB
MCLK
ALRCK
TC9274-011
REC_SWITCHIG
+
TC9273-004
INPUT_SWITCHIG
FROM MICOM
CCLK
CLATCH
CIN
COUT
CD
ABCLK
SERIAL DATA
I/O PORT
ASDATA
DSDATA1
VOLUME
VOLUME
VOLUME
CLOCKCONTROL PORT
DIGITAL
FILTER
DIGITAL
FILTER
DAC
DAC
VOLUME
DIGITAL
ADC
-
ADC
IF FILTER
EX_FL
EX_FR
EX_SL
EX_SR
EX_C
EX_SW
+
L
R
FM
FRONTEND
L/R SUM
BUFF
--
IF FILTER
+
-
+
HPF
IF AMP
AM TUNING
LOOP FILTER
PLL CIRCUIT
FROM u-COM
Y
CB
CR
Y
CB
CR
LINE_3
LINE_2
CODEC
AD1837
LINE_1
CB
CR
D-VIDEO OUTPUT
FILTER
VOLUME
DIGITAL
FILTER
DAC
VOLUME
DIGITAL
FILTER
VOLUME
DIGITAL
FILTER
DAC
VOLUME
RMC IN/OUT
DVD/VDP
TV/DBS
COMP-VIDEO
INPUT
FM & AM
IF IC
MPX IC
< AVR1804 E1,E2,E3,EK,E1H,E1C>
C-VIDEO INPUT
DVD/VDP
TV/DBS
VCR-1
VCR-2
V.AUX
L.P.F
MUTING
Y
VCR1 OUT
VCR2 OUT
S-VIDEO INPUT
DVD/VDP
TV/DBS
VCR-1
VCR-2
V.AUX
VCR-1 OUT
VCR-2 OUT
CLK_IN(132)
RMC GND
RAM
64KX16
DIGITAL AUDIO DECODER
DT0(56)
+
+
+
+
+
+
+
IN
VIDEO SWITCH
VIDEO SWITCH
VIDEO SWITCH
INH
VIDEO SWITCH
VIDEO SWITCH
INH
MELODY 32
MUTE
CXA1511M
BA7626
BA7626
BA7626
BA7626
BA7626
REMOTE CONT
TUNER PLL
DATA CXP740096
--
-
SW F SUM
-
-
-
+5.6V
OUT
RMC DATA
+5.6V (Y,CB,CR SWITCHING SAME)
C-VIDEODET
IC1001
2
IC606
13 4
15
LC74781
15
1
OSD
S-VIDEODET
Y
C
Q1022
IC1004
+5V
IC1001
3
IC1008
5
1
15
2
13
14
1212
9
MONITOR OUT
RESONATOR KEY_MATRIX
IN/OUT
12MHz
u-COM
DIGITAL AUDIO
CONTROL DATA
IC1008
1
15
2
IC1007
NJM2509V
Y/C
MIX
Q1012
C
5
IC1001
4
Q653
CENTER
Q1017
ANA_IN
ANA_HFP
DSP_FL
EX_FL
ANA_IN
ANA_HFP
DSP_FR
EX_FR
SL
EX_SL
SR
EX_SR
EX_C
SW
EX_SW
12133
14
IC1004
AUDIO SWITCHING
L601
M5-MT
Y/C
ÝÂ×î
YCY
FLT DRIVER
DATA
TC9164
MONITOR OUT
121413
IC1008
Q1014Q656
SPEAKER OUT
FL DRIVER
LC75721NE
VOLUME
TC9482
KIC9459
FL DISPLAY
16-ST-42GNK
+
TONE
TC9184
TONE DFT CON.
POWER AMP
+
+
+
+
+
MUTE
-36V
FLT
AVR
FUNCTION,OP AMP
TUNER
+5V (A/D POWER)
FUNCTION,OP AMP
+5V (DSP PARTPWR)
VIDEO POWER
DSP
DIR
DSP
RELAY B+
7805
CODEC
2.5V
3.3V
7815
7915
7805
7805
MAIN +B
MAIN -B
LOW DROP
u-COM
FL DRIVER
FILAMENT AC
7805
+
RELAY
+
FRONT A L
-
+
FRONT A R
-
+
FRONT B L
-
+
FRONT B R
-
+
-
+
-
+
-
+
-
+
-
SPK A
SPK B
SURR L
SURR R
CENTER
H/P OUT
SW
PRE OUT
SURR BACK/MULTI
5
ADJUSTMENT
Tuner Section (AVR-1804/884 only)
CONNECTION DIAGRAM OF MEASURING INSTRUMENTS
FM
T402 T403
R471
IC402
AVR-1804/884 / AVC-1880
STEREO
MODULATOR
6
VR402
TUNER B'D
FM ALIGNMENT
Alignment
Step
AM
Item
Center
1
Adjustment
2 Distortion
3 Repeat Steps 1 and 2
4 Signal Level
Tuning
Frequency
Setting
98.1MHz
(98.0MHz)
98.1MHz
(98.0MHz)
98.1MHz
(98.0MHz)
Type Frequency
FM SSG 98.1MHz 60dBµ
FM SSG 98.1MHz 60dBµ
FM SSG 98.1MHz 20dBµ OFF
Input Output Adjustment
Input
Level
Modulation Coupling Type Connect to Points Adjust 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
R471 T402 ± 50mV
Output
T403
VR402
Minimum
Distortion
+14
20
−10
dB
AM ALIGNMENT
Step
1 Signal Level
Alignment
Item
Frequency Input
999 (1000)
kHz
AM SSG
T402 T403
R471
IC402
VR401
TUNER B’D
Output Adjustment
Type Connect to Points Adjust to
VR401
Light “TUNED” on
FL Display
Remarks
SSG OUTPUT
74dBµ (EMF)
6
AVR-1804/884 / AVC-1880
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 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 ch: CP106).
(3) Connect power cord to AC Line, and turn power switch "ON".
) position.
7
(4) Presetting. MASTER VOLUME : "---" counterclockwise (
min.)
MODE : 6CH 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 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‑BACKch:CP106) 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:6CHSTEREO
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±0.5mVDC
(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±0.5mVDC
(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 Back ch
C ch
S Rch
F Rch
VR104
TR104
VR101,TP101
VR106
CP106
VR103,TP103
VR102
TP102
VR105
TP105
7
SEMICONDUCTORS
Onlymajorsemiconductorsareshown,generalsemiconductorsetc.areomittedtolist.
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
AVR-1804/884 / AVC-1880
PI3/TO0/ADJ
PI4/INT1/CS1
PI5/SCK1
8
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
32333435363738394041424344454647484950
PH7
PH6
PH5
PH4
PH3
PH2
908988878685848382
TOP VIEW
SS
V
PH1
PH0
RST
PK7/TO1
CXP740096 Terminal Function
Pin
No.
1 9274 STB O TC9274 CONTROL
2 9274 73 9164 CLK O TC9274/TC9273/TC9164 CONTROL
3 9274 73 9164 DAT O TC9274/TC9273/TC9164 CONTROL
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 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 1837 SDOUT O CONTROL DATA
19 89057 1837 SCLK O CONTROL CLOCK
20 1837 RESET O CODEC RESET
21 9164 CE O TC9164 CONTROL
22 SW MUTE O SW MUTE
23 RELAY SPK B O SURROUND BACK RELAY
Pin Name FunctionI/O
81
PF5/AN9
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
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
XTAL
EXTAL
PK5/SI0
PK6/CS0
PK4/SO0
PF7/AN11
PF6/AN10
PK3/SCK0
8
AVR-1804/884 / AVC-1880
9
Pin
No.
Pin Name FunctionI/O
24 RELAY SPK A O FRONT A RELAY
25 RELAY SURR O SURROUND RELAY
26 RELAY CNT O CENTER RELAY
27 RELAY H/P O H/P RELAY
28 FUNC UP I ENCODER INPUT(FUNCTION)
29 H/P DETECT I H/P DETECT
30 FUNC DOWN I ENCODER INPUT(FUNCTION)
31 NC 32 CNT MUTE O CENTER MUTE
33 NC
34 SURR MUTE O
35 9459 STB
36 MULTI SB RLY
37 RELAY SPK B
SURROUND MUTE
KIC9459 CONTROL STB
O
O
ZONE2/SURROUND BACK : SELECTION RELAY
FRONT B RELAY
-
38 FL DRV RESET O LC75721NE RESET
39 RELAY POWER O POWER RELAY
40 RESET I RESET
41 GND I
42 XTAL
43 EXTAL
-
-
44 FL DRV CE O LC75721NE CE
45 FL DRV DATA O LC75721NE DATA
46 FL DRV/2090 CLK O CONTROL CLOCK
47 2090 DATA O BU2090F DATA
48 VOL DOWN I ENCODER INPUT(VOLUME)
49 VOL UP I ENCODER INPUT(VOLUME)
50 SEL DOWN I ENCODER INPUT(SELECT)
51 SEL UP I ENCODER INPUT(SELECT)
52 AV
53 V
54 AV
SS
REF
DD
55 89057 INT
56 GND
-
-
LC89057 INT
-
-
57 STEP OPT I AREA SELECT
58 SET OPT I MODEL SELECT
59 GND
-
60 KEY IN3 I KEY INPUT
61 KEY IN2 I KEY INPUT
62 KEY IN1 I KEY INPUT
63 9K/10K STEP I TUNER STEP SELECT
64 PROTECT I PROTECTION
65 C-VIDEO DET IIComposite Signal detect input (H: Signal input)
66 M32 SCLK O MELODY32 CLOCK
67 1837 CE O CODEC CE
68 M32 RESET O MELODY32 RESET
69 S-VIDEO DET
70 STBY LED O
71 NC
72 NC
73 74781 CS
74 74781 SCLK
S Signal detect input (H: Signal input)
STANDBY LED
-
-
LC74781 CONTROL ENABLE
O
LC74781 CONTROL CLOCK
O
75 SURR BACK MUTE O SURROUND BACK MUTE
76 2090 CLK2 O BU2090 CONTROL CLOCK2 (VIDEO)
9
AVR-1804/884 / AVC-1880
10
Pin
No.
Pin Name FunctionI/O
77 PWR DOWN IIPOWER DOWN DETECT
78 RDS CLK OOTDA7330 CONTROL CLOCK
79 RDS DATA O TDA7330 CONTROL DATA
80 MUTE PWR
MUTE power ON/OFF switching
81 9184 CE O TC9184 CONTROL
82 M32 INTREQ I/O MELODY32 CONTROL
83 MULTI MUTE O MULTI MUTE
84 S. MONITOR DET S Monitor connection detect input (L: Connected)
85 REMOCON I
86 GND
87 GND
88 V
SS
89 V
DD
90 NC
REMOTE CONTROL SIGNAL INPUT
-
-
-
-
VDD BACK UP
-
91 TC9482 CE O TC9482 CONTROL
92 PLL DATA O PLL CONTROL (LC72131), DATA (TC9482, TC9184, KIC9459)
93 PLL CLK O
94 PLL DT IN O
PLL CONTROL (LC72131), CLOCK (TC9482, TC9184, KIC9459)
PLL CONTROL (LC72131),
95 TU MUTE O TUNER MUTE
96 STEREO I STEREO DETECT
97 TUNED I TUNED DETECT
98 PLL CE O PLL CONTROL
99 2090 CLK 1 VIDEO O BU2090 CONTROL CLOCK1 (VIDEO)
100 2090 DATA VIDEO O BU2090 CONTROL DATA (VIDEO), LC74781 CONTROL DATA
M29W800AT (IC805)
M29W800T
M29W800T
48
37
36
25
1
A15 A16
A14 BYTE
A13 V
A12 DQ15A-1
A11 DQ7
A10 DQ14
A9 DQ6
A8 DQ13
NC DQ5
NC DQ12
W DQ4
12
RP V
13
NC DQ11
NC DQ3
RB DQ10
A18 DQ2
A17 DQ9
A7 DQ1
A6 DQ8
A5 DQ0
A4 G
A3 V
A2 E
A1 A0
24
IS61LV6416 (IC806)
1
A15
A14
2
A13
3
A12
4
A11
5
CE
6
I/O0
7
I/O1
8
I/O2
9
I/O3
10
Vcc
11
GND
12
I/O4
13
I/O5
14
I/O6
15
I/O7
16
WE
17
A10
18
A9
19
A8
20
A7
21
NC
22
V
SS
19
A0-A18
W
CC
E
M29W800AT
G
15
DQ0-DQ14
DQ15A-1
BYTE
RB
RP
SS
V
ss
44
A0
43
A1
42
A2
41
OE
40
UB
39
LB
38
I/O15
37
I/O14
36
I/O13
35
I/O12
GND
34
Vcc
33
I/O11
32
31
I/O10
30
I/O9
29
I/O8
28
NC
27
A3
26
A4
25
A5
24
A6
23
NC
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
10
MELODY32 (IC804)
AVR-1804/884 / AVC-1880
11
MELODY32 Terminal Function
Pin
Pin Name
No.
1 D14
2 D15
3 HAD0
4 HAD1
5 GND
6 HAD2
7 HAD3
8 HAD4
9 HAD5
10 HAD6
11 HAD7
12 HAD8
13 V
DDEXT
14 HAD9
15 HAD10
16 GND
17 HAD11
18 HAD12
19 V
DDINT
20 HAD13
21 HAD14
22 HAD15
23 HA16
24 HACK_P
Pin
Pin Name
No.
25 V
DDEXT
26 HACK
27 HCMS
28 HCIOMS
29 GND
30 HALE
31 HRD
32 HWR
33 GND
34 PF0
35 PF1
36 PF2
37 PF3
38 PF4
39 PF5
40 V
DDEXT
41 PF6
42 PF7
43 TMR0
44 TMR1
45 TMR2
46 DT2
47 TCLK2
48 TFS2
144
1
36
37
Pin
Pin Name
No.
49 DR2
50 RCLK2
51 RFS2
52 RXD
53 TXD
54 GND
55 GND
56 DT0
57 TCLK0
58 V
DDINT
59 TF50
60 DR0
61 RCLK0
62 RFS0
63 V
DDEXT
64 DT1
65 TCLK1
66 TFS1
67 DR1
68 RCLK1
69 RFS1
70 BMODE0
71 BMODE1
72 BYPASS
TOP VIEW
Pin
No.
73 RESET
74 TDO
75 TDI
76 TMS
77 GND
78 TCK
79 TRST
80 GND
81 EMU
82 V
83 OPMODE
84 A0
85 A1
86 A2
87 A3
88 A4
89 A5
90 V
91 A6
92 A7
93 A8
94 GND
95 A9
96 A10
Pin Name
DDINT
DDEXT
109
108
73
72
Pin
No.
97 A11
98 A12
99 A13
100 V
101 A14
102 A15
103 A16
104 A17
105 GND
106 A18
107 A19
108 A20
109 A21
110 BGH
111 BG
112 BR
113 BMS
114 IOMS
115 MS0
116 MS1
117 MS2
118 V
119 MS3
120 ACK
Pin Name
DDEXT
DDEXT
Pin
No.
Pin Name
121 WR
122 RD
123 D0
124 D1
125 D2
126 D3
127 V
DDINT
128 D4
129 GND
130 CLKOUT
131 V
DDEXT
132 CLKIN
133 XTAL
134 GND
135 D5
136 D6
137 D7
138 D8
139 D9
140 D10
141 D11
142 D12
143 V
DDEXT
144 D13
11
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
AGND
FILTD
TOP VIEW
AVDD
FILTR
DSDATA3
DSDATA2
AGND
ADCRP
DGND
DSDATA1
NC
OUTL3
AVR-1804/884 / AVC-1880
DVDD
39
38
DBCLK
37
DLRCLK
M/S
36
AGND
35
34
OUTR4
33
NC
32
OUTL4
31
NC
30
AGND
29
AVDD
28
OUTR3
NC
27
12
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
I/O PORT
DIGITAL
FILTER
DIGITAL
FILTER
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
12
LC89057W (IC807)
AVR-1804/884 / AVC-1880
13
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
Microcontroller
Clock
27
Input
Selector
Modulation
or
Parallel Port
29
XIN
C bit, U bit
Demodulation
&
Lock Detect
PLL
28
XOUT
Selector
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 RDATA40CL
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 I5 TTL compatible digital data input terminal
3 RX1 I Coaxial compatible amp built-in digital data input terminal
4 RX2 I5 TTL compatible digital data input terminal
5 RX3 I5 TTL compatible digital data input terminal
6 DGND — Digital GND
7 DVDD — Digital power
8 RX4 I5 TTL compatible digital data input terminal
9 RX5/VI I5 TTL compatible digital data/Validity flag input terminal for modulation
10 RX6/UI I5 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 I5 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
13
AVR-1804/884 / AVC-1880
14
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 I5 µcom I/F, write data input terminal
39 CE I5 µcom I/F, chip enable input terminal
40 CL I5 µcom I/F, clock input terminal
41 XMODE I5 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.
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-IF FM-IF FM-IN
11
13
18
AM-IN
20
21
REG
BUFFER
RF MIX
22
124
XOUT
20
Vss
19
AOUT
18
AIN
17
PD
16
VDD
15
FMIN
14
12 13
10
IF
IF
BUFFER
OSC
23
2
1
FM - IF
AM-IF DET
OSC
NARROW
BUFFER
S-METER
GND
24
14
4
3
5
6
7
Vcc
POST
AGC
19
Q.D.
S-METER
17
AMP
16
LED
DRIVER
12
9
15
8
LA3401 (IC403)
22
VOL
OSC
REG
SYMMETRICAL
REOCTANCE
CIRCUIT
21
FF
AMIN
13
IO2
12
IFIN
11
MUTING
FM AM CHANGE
20
PHASE
COMPARATOR
FF
38kHzFF38kHz 90°
DECODER
Ro
FF
19
18
VCO STOP
Rc
Rc
16
17
PILOT DET
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
14
AVR-1804/884 / AVC-1880
15
LC75721E (IC301)
G7 G8G9
G10
G11
48 33
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
MM74LCX244 (IC809~811)
LC75721E Terminal Function
AA8/G12
AA7/G13
AA6/G14
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 6
AM 7
AM 8
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
Anode/Grid output terminal
Grid output terminal
LSI test terminal
Function
TOP VIEW
1
OE
2
I0
3
O4
4
I1
5
O5
6
I2
7
O6
8
I3
912
O7 O3
10 11
GND
20
VCC
19
OE2
18
O0
17
I4
16
O1
15
I5
14
O2
13
I6
I7
BU2090F (IC302, 1003, 1005)
VSS
DATA
CLOCK
LCK
1
CONTROL CIRCUIT
2
12-bi t SHIFT REGI STER
3
4
5
6
7
8
9
12- bi t ST RAGE REGI STER
OUTPUT BUFFER (OPEN DRAIN)
Q0
Q1
Q2
Q4
18
VDD
OE
17
16
Q11
Q10
15
Q9
14
Q8
13
12
Q7
Q6
11Q3
Q5
10
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 (IC702)
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
Symbol Name
Pin No
1
13
28
2~12
S1~S10
12~27
14
15
16
S15
S16
26
25
27
16 171819
S14
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
Function
Dual Power Use:VDD = 8.0~17 V Single Power Use:VDD = 8.0~18V
GND=0V
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
Low level
Border Input
Terminal
13
GND
14
CK
STB
DATA
16
15
15
BU4052BCF
(IC601D,602D)
Y
0
1
Y
2
2
Y
2
INH
V
Vss
YOUT
3
/IN
Y
3
4
Y3
5
Y
1
1
Y
6
INH
7
EE
EE
V
8
COMMON Y
Y
0
XOUT
B
AVR-1804/884 / AVC-1880
16
Truth Table
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
X
0
Y
L
L
L
H
HL
HH
X1 Y
X2 Y
X3 Y
0
1
2
3
X NONEX
X = Don’t Care
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
BA7625 (IC605D)
BA7626 (IC603D,604D,651-654,
1000,1002)
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
15
14
13
12
11
10
9
IN1
CTL A
V OUT1
Vcc
IN2
CTL B
V OUT2
CTL C
ABE
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
ONSwitches
X = Don’t Care
MONIT OR OUT
KIC9459F (IC706)
NC
L-OUT
L-IN
L-LD1
L-LD2
L-A-GND
NC
CS1
NC
GND
CK
3
2
4
5
6
7
8
9
10
11
12
50kohm/
91STEP
VR
V
SS
1
L-ch7 to 91decoder
L-ch latch circuit
Shift register (24Bit)
Level shift circuit
V
DD
24
Same
R-ch7 to 91decoder
R-ch latch circuit
as L-ch
22
NC
R-OUT
23
R-IN
21
R-LD1
20
19
R-LD2
18
R-A-GND
17
NC
16
CS2
15
NC
14
STB
13
DATA
TC9184AP (IC552)
Vss
VDD
1
2
BASS+
3
BASS-
COM
TREBLE-
TREBLE+
Ladder resister
4
5
6
Ladder resister
Analog switch
Analog switch
78
13 bit latch circuit
13 bit latch circuit
GNDCKDATA
16
9
Level shift
20 bit Shift register circuit
Code
detect
circuit
STB
10
15
BASS+
Analog switch
Analog switch
14
Ladder resister
BASS-
13
COM
12
TREBLE-
11
Ladder resister
TREBLE+
16
MM74HCT244 (IC812)
1G
1A
2Y
1A
2Y
1A
2Y
1A
2Y
GND
0
0
1
1
2
2
3
3
20 1
19 2
18 3
17 4
16 5
15 6
14 7
13 8
12 9
11 10
CC
V
2G
0
1Y
0
2A
1
1Y
1
2A
2
1Y
2
2A
3
1Y
3
2A
LC74781 (IC1006)
PinNo. Symbol Name
1VSS1GND
2 XtalIN Xtaloscillation
3 XtalOUT Xtaloscillation
4 CTRL1 Xtaloscillationinputswitching
5BLANKBlankoutput
6 OSCIN LCoscillation
7 OSCOUT LCoscillation
8 CHARA Characteroutput
9 CS Enableinput
10 SCLK Clockinput
11 SIN Datainput
12 VDD2 Power
13 CVOUT VIDEOsignaloutput
14 NC
15 CVIN VIDEOsignalinput
16 VDD1 Power
17 SYNIN Sync.separatecircuitinput
18 SEPC Sync.separatecircuitbiasvoltage
19 SEPOUT Complexsync.signaloutput
20 SEPIN Verticalsync.signalinput
21 CTRL2 NTSC/PAL-Mswitchinginput
22 CTRL3 SEPINinputcontrol
23 RST Resetinput
24 VDD1 Power(+5V)
AVR-1804/884 / AVC-1880
17
SCLK
VDD1
VSS1
VDD2
CHARA
OSCIN
OSCOUT
SYNIN
SEPC
SEPOUT
SEPIN
CTRL3
SIN
RST
9
CS
Serial
11
parallel
converter
10
23
24
1
12
8
Horizontal
6
character
7
17
18
19
20
22
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
17
e
NJM2274
(IC1007)
Yin
1
GND
2
Vout
3
4
Vsag
8
Cin
Cmute
7
6
Power Sav
Vcc
5
AVR-1804/884 / AVC-1880
18
TRANSISTORS
DTA114ES
DTA114YS
DTA114ES
DTC114TS
DTC114YS
DTC144ES
FRONT
VIEW
C
B
E
DTA114EK
DTA144EK
DTC144EK
DTC114TK
DTC114YK
DTC144EK
B
TOP
VIEW
E
DTA Series
C
R1
B
R2
R1
E
R2
10kohm
47kohm
C
DTA114EK
DTA114ES
DTA114YS
DTA144EK
DTA144ES
10kohm
10kohm 10kohm
10kohm
47kohm 47kohm
47kohm 47kohm
DTC Series
R1
B
DTC114EK
DTC114TK
DTC114TS
DTC114YK
DTC114YS
DTC144EK
DTC144ES
10kohm 10kohm
10kohm
10 -
10kohm 47kohm
10kohm 47kohm
47kohm 47kohm
47kohm 47kohm
R2
R1
kohm
C
E
R2
-
18
FL DISPLAY
16-ST-66GNK (FL301)
AVR-1804/884 / AVC-1880
19
1
TUNED
STEREO
RDS
CH
G16
TUNED
RDS
CH
G15 G13
STEREO
AUTO
Pin Assignment
AUTO
G14
REC
ZONE2
REC
ZONE2
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
S13
S1
S6
S11
S16
S21
S26
S31
S14
S2
S7
S12
S17
S22
S27
S32
G1
S9
S10
S15
S11
S12
G2~G16
S3
S8
S13
S18
S23
S28
S33
S4
S9
S14
S19
S24
S29
S34
S1
S6
S2
S7
S5
S3
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
/
2
VDP
-
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)
6
S4
26
46
G1
S10
S11
S12
S13
S14
S15
DIGITAL
PRO LOGICII
CDR
V.AUX
7 8 9 10 11 12 13 14 15 16 17 18 19
S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15
27 28 29 30 31 32 33 34
35 36 37 38 39 40
47 48 49 50 51 52 53 54 55 56 57
S16 S17
58
F1, F2 : Filament
G1~G16 : Grid
S1~S38 : Anode
G2~G16
S10
S11
S12
S13
S14
S15
S16
S17
S18
AUXDVD
S19
S20
S21
S22
S23
S24
S25
S26
S27
TUNER
-
2
-
3
CD
-
G1
G2~G16
S19
S20
S21
S22
S23
S24
S25
S26
S28
S29
S30
S31
S32
S33
S34
S35
S27
PHONO
1
VCR
REC
ZONE2
G1
STEREO
AUTO
G2~G16
20
S18
S28
S29
S30
S31
S32
S33
S34
S35
G16
TUNED
RDS
CH
19
PRINTED WIRING BOARDS
MAIN P.W.B. UNIT
AVR-1804/884 / AVC-1880
20
20
COMPONENT SIDE
AVR-1804/884 / AVC-1880
21
21
FOIL SIDE
CPU P.W.B. UNIT
JP353
FUN_DW
FUN_UP
+5V
P_SW
GND
KEY_3
H/P_SENS
LED308
SPK_A
SW305B
VO
VCC
GND
RMC301
STAND BY
CP391
J353
C201D
TC9274_73_CLK
TC9274_STB
TC9273_CE
TC9274_73_DATA
12
131415
Y_SIG
CP601
C322
R202V
CP701
JP341
JP318
JP325
JP328
C_SIG
JP324
V.AUX_VIN
321
J338
J365
INPUT MODE
SW304B
R304B
LED309
SW309C
SPK_B
16-TUNER_L
C238
131415
JP330
TONE_DFT
Q221
2090_CLK
VIDEO_GND
2090_781_DATA
45678
AAC
AUTO
J370
BAR CODE
R308C
SURR_BACK
JP301
GND02
V.AUX_OPT
DGND
DGND
9-+15V
13-GND
14-TUNER_R
11-DET_OUT
15-GND
12-NC
10-GND
-15V
GND
MULTI_MUTE
+15V
GND
V.AUX_R
678
9
101112
JP321
GND
ERR_MUT
ERR_MU_OFF
FRO_OPT_IN
GND
CP803
567
8
+5V
GND
REM_DATA
JP335
9
10
NC
NC
CP303
D.DIGITAL
PCM
LED306
ANALOG
SW303B
J363
SW308C
CN609A
7-ST
8-TUNED
TUNER_L
V.AUX_L
GND
89_INT
89_AUDIO
421
3
J368
NCNCNC
5-PLL_DOUT
4-PLL_CLK
6-TU_MUTE
Q210
GND
TUNER_R
12345
GND
GND
AD_L
AD_R
JP313
89_EMPHA
NCNCNC
D304
J346
C202D
3-PLL_DATA
2-PLL_CE
1-9K/10K
JP306
C240
JP315
GND
GND
ANA_R
ANAL_L
M32_INTREQ
CP801
16
JP336
CB205
C323
DTS_SIG
DTS_SEL
LED307
EXT IN
SW302B
J345
J344
JP300
JP304
GND
V.AUX_R
JP308
CP702
GND
HPF_L
HPF_R
M32_SDIN
EPROM_RST
89057_SDIN
131415
C320
J347
JP305
V.AUX_L
AVC1880-5P
R207FR
Q209
R257
JP310
10
11
R207FL
JP294
M32_RST
M32_CS
89057_RST
10
12
11
CB206
SB_OUT
LED310LED301LED303 LED302
ZONE2_OUT
LED311LED305LED304
IN OP FIADJICT
CP401
IC205
NJM2068
5
9
JP296
M32_CLK
M32_SDOUT
JP326
C321
J354
J341
J337
J339
J348
J349
R307C
JP309
161514
14
8
R213FL
JP312
234
678
5
JP302
1837_CE
89057/1837_SDOUT
DSP_GND
1837_RST
89057_CE
89057/1837_SCLK
JP297
JP298
AVR1804 FRONT BOARD
7020-06239-201-0
FLT301
R307A
BAND
SW309A
R308A
J335
SHIFT
SW308A
DOWN
SW307A
R306A
J331
PRESET
SW305A
J334
JP286
12
13
JP235
1
DSP_+5V
123456789
JP285
11
Q208
10
JP317
JP290
JP329
DOLBY/DTS
D214
9
8
Q207
JP287
J320
65432
7
JP289
JP288
R219SW
JP295
R306C
JP283
NJM2068
5
IC206
IC207
NJM2068
5
CP802
-15V
BU2090
C319
SW306CSW307C
5CH/6CH_ST
R238
JP282
1
14
8
14
J240
8
JP293
1516171819
GND
+15V
AD_L
AD_R
JP291
CB204
14
GND
JP281
13
FR
C219FL
C219SW
GND
R305C
C219FR
JP333
101112
FL
J360
JP262
R236
JP261
SW305C
DIRECT/ST
JP279
C230C
C223SL
C270
C220
JP278
JP259
C241
GNDSRGNDCGNDSWGND
JP277
C223SR
JP258
SL
AVR1804 CPU BOARD
7020-06239-101-0
DOWN
UP
SW306A
R304C
DIP
TC9482
JP276
JP269
JP268
C222SW
C221FL
28 25 20 15
JP256
JP257
JP254
JP255
JP260
R230
R229
JP253
JP252
123456789
SB
GND
TUNING
R305A
C221FR
IC203
TC9164
LC75721NE
SW304A
JP267
R227
JP251
JP250
JP266
R258
JP265
JP249
UP
R303A
J359
CP555
JP264
141051
JP246
CP603
CVIDEO_DET
VIDEO SELECT
C324
SR
CP403
JP263
R228
JP244
R231
JP248
74781_SCLK
74781_CS
SVIDEO_DET
65432
SW303A
C
GNDSLGND
12
11
131415
9-FL
11-FR
10-GND
CP705
SMON_DET
2090_CLK2
1
J317
J315
J316
DIMMER
SW302A
J319
GP303
C327
FR
FL
GND
GND
GND
987
6
10
JP314
JP316
6-GND
4-GND
5-C
8-GND
7-SW
GND
DSP_SB_OUT
MULTI_SBOUT
9459_DATA
9459_CLK
GND
1235467
R233
R260
CB203
JP273
C344
JACK301
C326
-15V
SW
GND
SB
51234
OPTION
3-SR
1-SL
2-GND
OPTION1
MULTI_SB_RLY
9459_STB
8
R232
C221
JP247
JP270
C343
+15V
JP271
R301A
V_IN
NC
C227
JP231
JP272
ZD301
STATUS
SW301A
V_GND
AUD_L
NC
NC
JP226
J274
J329
A_GND
AUD_R
CXP740010
J275
J327
RED
CN604
JP327
JP323
JP275
JP284
JP220
J328
JP307
R314
C246
R221
J362
JP322
R222
J330
JP311
C315
J361
R316
R317
R318
R319
R313
R210
JP238
R207
JP339
JP303
JP221
R214
JP233
C314
JP222
C318
C317
JP217
CB202
C205
L301
JP219
X201
JP216
JP232
R209
JP223
12MHz
R212
R204
Q218
J357
CP301
C204
D204
D303
D302
C310
C316
L302
R303C
GND01
+5.6V
-VKK
GND
GND
H/P_SENSE
FUNC_DW
FUNC_UP
REMOCON
FL_RST
RLY_PWR
STBY_LED
FL_DRV_CE
FL_DRV_DATA
FL/2090_CLK
2090_DATA
VOL_DW
VOL_UP
SEL_DW
SEL_UP
KEY3
KEY2
KEY1
D201
D213
J305
R354
J336
R303
R304
J364
SURROUND
MODE
SW303C
SW304C
SURROUND
PARAMETER
JP245
JP224
Q219
Q220
JP215
JP241
JP234
JP280
ZD201
BC201
8200/5.5
3300/6.3 : E3 ONLY
D202
R353H
J332
J333
J351
R213
JP243
JP211
J302
CP551
JP230
JP212
J301
C201E
C202E
JP319
JP239
1
2
3
4
5
6
7
8
10
11
12
13
14
15
16
17
18
19
R302
R308
1
2
3
4
5
6
7
8
9
9
KEY1
R301
DOWN UP
C302
R305
R306
R307
ZD304
ZD305
JP237
JP225
SB_MUTE
TONE_DFT
9184_CE
9184_CLK
9184_DAT
RLY_SPK_B
PRE_RTN_GND
+15V
-15V
CP552
KEY2
KEY3
DOWN
JP228
R250
JP351
Q217
JP214
JP210
JP218
SEL_UP
VEC301
C301
J352
JP352
JP320
JP209
SEL_DW
VOL_UP
VOLUME
C303
SEL
VEC302
CN609B
JP236
JP227
Q216
C209
JP274
JP213
J304
VOL_DW
FL_DATA
2090_DATA
FL_CLK
J350
UP
V.AUX_OPT
DGND
DGND
V.AUX_OPT
DGND
C251
VGND
1-SW_MUTE
2-MUTE_+B
C208
3-RLY_S_SB
4-RLY_S_A
5-RLY_SURR
6-RLY_CNT
7-RLY_H/P
8-RLY_POWER
9-CNT_MUTE
10-FRNT_MUT
11-SUR_MUT
X4M332
JP240
+5V
GND
X202
CN303
FL_CE
ZD302
ZD303
C304
C
Y
C206
C207
RLY_PWR
STBY_LED
FL_RST
R302C
CP606
CP302
JP229
CP605
12-+5.6V
13-CPU_G
14-+5V(DSP)
15-DSP_G
16-PWR_DW
17-PROTECT
18-VKK
19-MUTE_PWR
H/P_SENSE
GND
FUNC_DW
FUNC_UP
REMOCON
C342
TONE CONTROL
R301C
SW301C
TONE DEFEAT
C252
V.AUX_VIN
VGND
V.AUX_L
AGND
V.AUX_R
RDS PART
AVR-1804/884 / AVC-1880
SHARP OLD OPTICAL JACK
CN606
-VKK
GND
+5.6V
SW302C
Y
CN610
C333
GP301
Y
CN610
C333
GP301
OUT
GND
VCC
IC803
FRONT OPTICAL B'D
7020-06239-301-0
L301O
C301O
C302O
IN
C
G
JACK301
C
G
JACK301
5V
G
G
G
IN
5V
7020-06239-301-0
VCC
GND
IC803
7020-06196-000-0
AVR1804 CPU/FRONT ARRY BOARD
C334
7020-06239-401-0
C334
7020-06239-401-0
C302O
C310O
L301O
G
SHARP NEW OPTICAL JACK
CN606
FRONT OPTICAL B'D
OUT
22
22
COMPONENT SIDE
OUT
GND
VCC
21-VKK
20-GND
22-+5.6V
19-GND
17-FUNC_DW
16-FUNC_UP
15-REMOCON
18-H/P_SENSE
14-FL_RST
13-RLY_PWR
12-STBY_LED
11-FL_CE
202322
1618
8-2090_DATA
7-VOL_DW
6-VOL_UP
10-FL_DATA
9-FL_CLK
12 246810
14
151719
13
5-SEL_DW
4-SEL_UP
3-KEY3
11
1-KEY1
2-KEY2
AVR-1804/884 / AVC-1880
9
57
13
30
35
40
45
25
20
23
LC75721NE
50
55
60
15
10
5
1
8
1155
JACK301
R359
JACK301
VCC
GND
SCREW 3*17
SCREW 3*17
BU2090F
109
SCREW 3*17
NC
NC
NC
+15V
-15V
FL
SW
GND
GND
GND
SB
5
6
4
213
1
SB_MUTE
2
TONE_DFT
9184_CE
3
9184_CLK
4
5
9184_DAT
6RLY_SPK_B
PRE_RET_GND
+15V
-15V
7
8
9
R360
C345
OUT
C303O
12-+5.6V
13-CPU_G
14-+5V(DSP)
15-DSP_G
16-PWR_DW
17-PROTECT
18-VKK
19-MUTE_PWR
10
11
1-SW_MUTE
2-MUTE_+B
3-RLY_S_SB
4-RLY_S_A
5-RLY_SURR
6-RLY_CNT
7-RLY_H/P
8-RLY_POWER
9-CNT_MUTE
10-FRNT_MUT
11-SUR_MUT
1
2
3
4
5
6
7
1
20
8
9
10
11
12
13
14
15
16
17
18
19
+5.6V
-VKK
H/P_SENSE
FUNC_DW
FUNC_UP
REMOCON
FL_RST
RLY_PWR
STBY_LED
FL_DRV_CE
FL_DRV_DATA
FL/2090_CLK
2090_DATA
VOL_DW
VOL_UP
SEL_DW
SEL_UP
KEY3
KEY2
KEY1
GND
GND
30
35
40
45
50
55
60
65
25
20
10
5
100
70
75
80
95
90
85
81
2-GND
1-SL
3-SR
9459_STB
MULTI_SB_RLY
9459_CLK
7
8
6
1
8
7109
5-C
6-GND
4-GND
GND
9459_DATA
FR
GND
7-SW
8-GND
MULTI_SBOUT3
GND
254
GND14
SL
C
12 GND
13
11
11-FR
10-GND
9-FL
DSP_SB_OUT
1
1
SR
15
65432
74781_SCLK
74781_CS
2090_CLK2
SVIDEO_DET
SMON_DET
CVIDEO_DET
1
1804RDS
25
20
15
5
OPEN
TC9482
10
2
3
4
1
SL
SB
GND
R217SET_OPT
15KAVR1804
GND
R219
10K
10K
SR
GND
98765
C
SW
GND
ARE_OPT
E3,KEU
E2,EK,G2A,C
G1K,GUT
N
10
GND
FL
GND
131211
14
FR
GND
R216
10K
15K 10K
GND
ANAL_L
R218
OPEN10K
18K
1
+15V
ANAL_R
13
8
11
9
10
12
2
5
3
4
7
6
1918171615
-15V
14
15
16
13
GND
GND
HPF_L
HPF_R
ANA_R
1234567
DSP_+5V
1837_CE
DSP_GND
1837_RST
89057/1837_SCLK
5
2
1
GND
GND
GND
AD_L
ANAL_L
AD_R
9
8
10
11
M32_CLK
M32_RST
89057/1837_SDOUT
M32_CS
89057_CE
M32_SDOUT
7
9
643
89057_RST
EPROM_RST
89057_SDIN
121314
2-PLL_CE
1-9K/10K
M32_SDIN
M32_INTREQ
16
15
5-PLL_DOUT
4-PLL_CLK
6-TU_MUTE
3-PLL_DATA
TUNER_R
TUNER_L
GND
1
89_AUDIO
89_EMPHA
123
9-+15
8-TUNED
7-ST
V.AUX_L
GND
GND
432
5
89_INT
ERR_MUT
ERR_MU_OFF
4
567
312
45678
13-GND
10-GND
12-NC
11-DET_OUT
MULTI_MUTE
GND
V.AUX_R
876
9
GND
FRO_OPT_IN
GND
8
REM_DATA
10
14-TUNER_R
16-TUNER_L
15-GND
+15V
-15V
121314
11
10
+5V
GND
TONE_DFT
2090 _CLK
9
84567
15
Y_SIG
C_SIG
V.AUX_VIN
VIDEO_GND
2090_781_DATA
321
TC9273_CE
TC9274_73_CLK
TC9274_73_DATA
TC9274_STB
121314
15
23
FOIL SIDE
CNT P.W.B. UNIT ( FOR U.S.A., CANADA, EUROPE, U.K., ASIA, CHINA, TAIWAN R.O.C. & KOREA MODELS )
AVR-1804/884 / AVC-1880
24
24
COMPONENT SIDE
AVR-1804/884 / AVC-1880
25
25
FOIL SIDE
CNT P.W.B. UNIT ( FOR JAPAN MODEL )
AVR-1804/884 / AVC-1880
26
26
COMPONENT SIDE
AVR-1804/884 / AVC-1880
27
27
FOIL SIDE
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