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.
AVR-2307CI / AVR-2307 / AVR-887 / AVC-1930
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 inter-
nal 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 energized, unplugging the power
cord when replacing parts, etc.
(2)There are high voltage parts inside. Handle 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.
◎ 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 ! 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.
◎ 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 check 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
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 ! mark.
(2) Parts lists ... Indicated by the ! mark.
Concerning important safety parts
Using parts other than the designated parts
could result in electric shock, fires or other
dangerous situations.
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. Hold the following SPEAKER A button and SPEAKER B button, and switch on the unit.
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.
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 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、Digital 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. SPEAKER A ボタンと SPEAKER 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。
(1) Connect the oscilloscope to the Y-signal and C-signal of
S MONITOR OUT terminal and each terminate at 75
Ohms.
(2) Connect the oscilloscope to the Y-signal, P
B-signal, PR-signal and CR-signal of COMPONENT
C
MONITOR OUT terminal and each terminate at 75
Ohms.
※ Use the 75 Ohms resistance must be 1%
(3) DVD test disc : DVDT-S01
(4) COMPONENT VIDEO OUT of DVD player is connected
to COMPONENT IN-1.
2. BEFORE ADJUSTMENT
2.1. Setting the Oscilloscope as below.
(1) PB/CB, PR/CR, C
(a) TIME/DIV:10μs
(b) VOLT/DIV:100mV
(Use the probe : x10 )
(2) Y
(a) TIME/DIV:10μs
(b) VOLT/DIV:200mV
(Use the probe : x10 )
Power Supply
USA & Canada & Taiwan R.O.C.: 120V
Europe & Asia : 230V
Japan: 100V
China & Korea : 220V
2.2. Setup the DVD player and confirmation of the
stators
(1) Set to "INTERLACED" mode at the COMPONENT OUT.
(2) Confirm the DVD player’s out put level is equal as the
item 2.4. in following.
B-signal and
ビデオセクション
1. セッティング手順
(1) セットの SMONITOROUT 端子から Y 信号と C 信号を
それぞれオシロスコープ(終端抵抗:75Ω)に接続し
ます。
(2) セットの COMPONENTMONITOROUT の端子(Y,
P
B/CB,PR/CR)をそれぞれオシロスコープ(終端抵抗:
75Ω)に接続します。
※ 75Ω 抵抗は 1%品を使用する事。
(3) DVD テストディスク:DVDT-S01 を用意します。
(4) DVD プレーヤーの COMPONENTVIDEOOUT を
COMPONENTIN-1 に接続します。
2. 調整のまえに
2.1. オシロスコープを下記に設定
(1) PB/CB,PR/CR,C
(a) TIME/DIV:10μs
(b) VOLT/DIV:100mV
(プローブ x10 使用)
(2) Y
(a) TIME/DIV:10μs
(b) VOLT/DIV:200mV
(プローブ x10 使用)
電源電圧:
日本:100V
2.2. DVD プレーヤの設定と確認
(1) COMPONENTOUT の設定を " インターレース " にしま
す。
(2) DVD プレーヤーの出力が以下 2.4. に合っていることを
確認します。
2.3. Preparation
(1) Push [POWER] button with pressing [VIDEO SELECT]
and [STATUS] buttons.
(2) Confirm "0.0dB" appearing on the FL display.
(3) Turn the FUNCTION knob to select "DVD" input.
(4) Push [PURE DIRECT] button of Remote Control Unit to
select "PURE ". (FL display disappears and becomes
adjustment mode.)
(5) Push [OPEN/CLOSE] button of DVD player, then open
the Disc Tray.
Set DVD test disc (DVDT-S01) on the Disc Tray, and
then push [CLOSE] button.
(6) DVD player FL display appear "STOP", push [PLAY] but-
ton to playback DVD.
(7) Push the [DISPLAY] button of remote control of DVD
player unit and then appear the ON-Screen Display (GUI)
on the monitor TV.
(8) Push the [+10] and [2] button, select Title 12 of DVD.
(9) Push the [ENTER] button, playback Title 12.
(color bar 75%)
2.3. 準備手順
(1) セットの AC コードをコンセントへ挿入し、「VIDEO
SELECT」と「STATUS」ボタンを押しながらセットの電
源を "ON" にします。
(2) FL 表示右上の VOL 表示が "0.0dB" になっていることを
確認します。
(3) FUNCTION ノブを回し、入力を "DVD" に切り替えます。
(4) リモコンの「PURE」ボタンを押し、"PUREDIRECT" に
します。(FL 表示が消え、調整モードになります。)
(5) DVD プレーヤーの「OPEN/CLOSE」ボタンを押しトレ
イを開き、トレイ上に DVD テストディスク(DVDT-
S01)をセット後、「CLOSE」ボタンを押します。
(6) DVD プレーヤーの表示管上に "STOP" が表示されてか
ら、「PLAY」ボタンを押し、ディスクを再生します。
(7) DVD プレーヤーのリモコンの「DISPLAY」ボタンを押
しグラフィカル・ユーザー・インターフェイス (GUI) 画
面を出します。
(8) 番号ボタンの「 +10」 , 「 2 」ボタンを押し、Title12 を選択
します。
(9) 「ENTER」ボタンを押し、Title12 を再生します。
(75%カラーバー信号)
6
AVR-2307CI / AVR-2307 / AVR-887 / AVC-1930
2.4. Procedure
(1) Adjust the signal of S MONITOR OUT by the wave of os-
cilloscope.
(a) Target, Y-signal
Point:HDMI UNIT VR3001
Adjustment Value:714 ± 14mV
Waveform
Y
Y-signal of S MONITOR OUT
(b) Target, C-signal
Point:HDMI UNIT VR3002
Adjustment Value:286 ± 5mV
Waveform
2.4. 手順
(1) セットの SMONITOROUT の信号レベルをオシロスコー
プ上の波高値で調整します。
(a) Y 信号レベル
調整個所:HDMI UNIT VR3001
調整値:714 ± 14mV
波形
Y
SMONITOROUT の Y 信号レベル
(b) C 信号レベル
調整個所:HDMI UNIT VR3002
調整値:286 ± 5mV
波形
C
C-signal of S-MONITOR OUT
(2) Adjust the signal of COMPONENT OUT by the wave of
oscilloscope.
(a) Target, Y-signal
Point:HDMI UNIT VR3003
Adjustment Value:714 ± 14mV
Waveform
Y
Y-signal COMPONENT OUT
C
S-MONITOROUT の C 信号レベル
(2) COMPONENTOUTの信号レベルをオシロスコープ上の
波高値で調整します。
(a) Y 信号レベル
調整個所:HDMI UNIT VR3003
調整値:714 ± 14mV
波形
Y
COMPONENTOUT の Y 信号レベル
(b) Target, P
Point:HDMI UNIT VR3004
Adjustment Value:*525 ± 10mV
Waveform
* : 486 ± 10mV for U.S.A. & Canada model
B/CB-signal
PB/CB
PB/CB-signal COMPONENT OUT
B/CB 信号レベル
(b) P
調整個所:HDMI UNIT VR3004
調整値:525 ± 10mV
波形
PB/CB
COMPONENTOUT の PB/CB 信号レベル
7
AVR-2307CI / AVR-2307 / AVR-887 / AVC-1930
VR3001 S-Y
VR3002 S-C
VR3003 Y
VR3004 P
B/CB
VR3005 PR/C
R
(c) Target, P
R/CR-signal
Point:HDMI UNIT VR3005
Adjustment Value:*525 ± 10mV
Waveform
PR/CR-signal COMPONENT OUT
* : 486 ± 10mV for U.S.A. & Canada model
HDMI UNIT
Oscilloscope
PR/CR
(c) PR/CR 信号レベル
COMPONENT VIDEO
MONITOR OUT
(Y,P
B/CB,PR/CR
)
調整個所:HDMI UNIT VR3005
調整値:525 ± 10mV
波形
PR/CR
COMPONENTOUT の PR/CR 信号レベル
S-VIDEO
MONITOR OUT
(Y,C)
HDMI UNIT
8
BLOCK DIAGRAM (1/3) AUDIO BLOCK DIAGRAM
AVR-2307CI / AVR-2307 / AVR-887 / AVC-1930
HDMI 1N1
HDMI 1N2
HDMI OUT
DIGIT AL OU T
OPTICAL_OU T
DIGIT AL I N
OPTICAL_1
OPTICAL_2
OPTICAL_3
OPTICAL_4
COAXIAL 1
COAXIAL 2
ANALOG I N
PHONO
CDR/T APE
DVD/ VDP
TV/ DBS
V.AUX
TUNER
(JAPAN ONLY)
MIC IN
CDR/T APE OUT
VCR1 OUT
VCR2 OUT
ANALOG OU T
MULT I OUT
E3 ONLY
XM_ANT _INP UT
VCR1
VCR2
CD
SIL9033
Receiv er
SIL9030C TU
Tr ansmitte r
INPUT
Selector
TC74HC 151AF
+
+
TRANSCEIVER
XIN
12.288MHz
TC9274-011TC9273-004
INPUT _SWITCHIGREC_SWITCHI G
+
+
R
L
XM_DIG
CONVERT OR
HDMI BLOCK
DIR
LC89057W -V F 4
DE
MODULA T ION
&
Lock Detect
+
+
DA
RESONATOR KEY_MAT RIX
12MHz
REMOTE CONT
IN/OUT
LH28F 800BJE
SD0
SD1
SD2
SD3
MCK
LRCK
BCK
SPDIF
256fs
RMCK(16)
64fs
RBCK(17 )
fs
DAT A
Selector
+
+
RLRCK(20)
RDAT A(21)
SBCK(22 )
SLRCK(23)
XMCK(27)
MCLK
DBCLK
ABCLK
DLRCLK
ALRCLK
ASDAT A
DSDAT A4
DSDAT A3
PD/RST
SERIAL DAT A
I/OPORT
DIGIT AL
ADC
FILT ER
DIGIT AL
ADC
FILT ER
--
CODEC
ADA U 1328
ROM
512K X 16
DIGIT AL AU DIODECODER
DAI_P9(71)
DAI_P10(77)
DAI_P12(79)
DAI_P11(78)
FCX10-03
18.75MHz
EPM3128A T C144-10
CONTROL PORT
DSDAT A2
DSDAT A1
VOLUME
ALRCLK /FST DM
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
CY7C1049CV 33
RAMRAM
512KX8512KX8
ADSP21266
CLK_IN (142 )
MAIN PLD
CLOCK
DIGIT AL
FILT ER
DIGIT AL
FILT ER
DIGIT AL
FILT ER
DIGIT AL
FILT ER
DAI_P16(86)
DAI_P15(82)
DAI_P14(81)
DAI_P13(80)
DAI_P20(94)
DAI_P19(89)
DAI_P18(88)
DAI_P1(53)
DAC
DAC
DAC
DAC
FUNCT ION
DAT A
XM CONT
ANA_IN
DSP_FL
EX_FL
+
+
+
+
+
+
+
+
MUT E
SW
-
-
FRONT SUM
-
-
-
-
ANA_IN
DSP_FR
EX_FR
SL
EX_SL
SR
EX_SR
CENT ER
EX_C
SW
EX_SW
MULT I-L
SBL
EX_SBL
MULT I-R
SBR
EX_SBR
MAIN
u- COM
M30626
VIDEO SW
OSD DAT A
RS232C CONT
RDS CONT
TUNER CONT
IPod CONT
RESONATOR
12MHz
SUB
u- COM
M30620F CPGP
DSP AU DIO CONT
AUDIO SWITCHIN G
NJU7313A
NJU7313ATC94A 27UG
FLT DRIVE R
DAT A
HDMI CONT
VOLUME
TC94A 27BU G
PRE OUT
FL
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
FR
C
SW
SL
SR
SBL
SBR
H/P OUT
SPEAKER OUT
FRONT A L
FRONT A R
FRONT B L
FRONT B R
SURR L
SURR R
CENT ER
SBL
SBR
SPK A
SPK B
PRE- OUT
MUT E
BU4094( MUT E)
+
+
POWER AMP
+
+
+
+
+
+
+
RS-232C
TRIGGER 1
TRIGGER 2
I-P OD
CPU GND
ON/OFF
HIN202E IBNZ-T
13V
TC74V HCT 08A F
RX
TX
FM FRONT END
(EXCEPT JAPAN)
RX
TX
AM/ FM ANT IN
EX_FL
EX_SL
EX_FR
8CH_INPUT
EX_C
EX_SR
EX_SW
EX_SBL
EX_SBR
9
BLOCK DIAGRAM (2/3) VIDEO BLOCK DIAGRAM
DIGITAL VIDEO
COMPONENT
IC1304/1305
INPUT
SELECTOR
Audio
Video
12S
SPDIF
To DSP
To DIR
SIGNAL DET.
HDMI-1
HDMI-2
D CONTROL IN
(JAPAN ONLY)
COMPONENT/D IN
LINE3
DC GENERATOR
IC3004
RECEIVER
Sil9033
IC3015
VIDEO
DECODER
ADV7401BSTZ-110
IC3007/3008
LC4064V75TN100C
IC3017
VIDEO
ENCODER
ADV7320KSTZ
PLD
BUS
SWITCH
DAC D
DAC E
DAC F
DAC B
DAC C
AVR-2307CI / AVR-2307 / AVR-887 / AVC-1930
HDMI OUT
IC3006
TRANSMITTER
Sil9030TU-7
IC3018
VIDEO
DRIVER
BH7868F
D CONTROL OUT
(JAPAN ONLY)
S(Y/C) IN
S(Y/C) RECOUT
CVBS IN
CVBS RECOUT
S-VIDEO
IC1104
IC1105
INPUT
SELE
CTOR
IC1105
IC1110
INPUT
SELE
CTOR
CONPOSIT
IC1111/1112
RECOUT
INHIBIT
IC1007
RECOUT
INHIBIT
IC1301
INPUT
SELECTOR
NJW1321
INPUT
SELECTOR
SIGNAL DET.
SIGNAL DET.
OSD BLOCK
SYNC. DET
IC1123
OSD
M35015
COMPONENT OUT
SMONI.DET
S(Y/C)OUT
CVBS OUT
10
BLOCK DIAGRAM (3/3) POWER BLOCK DIAGRAM
FILAMENT AC
FL -VH
MAIN +B
MAIN -B
IC3033
AVR-2307CI / AVR-2307 / AVR-887 / AVC-1930
POWER TRIGGER
FUNCTION,OP AMP,XM DA
XM DAC
RELAY
IC101
IC102
IC103X
IC102XIC3025
IC101H
IC104
IC554
IC1130
FUNCTION,OP AMP
VOLUME
XM_DBUS5.5V
XM IC POWER
SUB CPU POWER
IC1131
IC1501
IC207
IC3014
IC3003
IC3001
IC3016
DSP,RAM,ROM
DSP VDDINT
IC822
KIA7805AF
IC831
LM1117S33
TUNER
CODEC,AD IN OP AMP
+5V (A/D POWER)
LC4064V VCC
ADV7401 DVDD
SIL9033CTU VCC
SIL9030CTU VCC
ADV7320 DVDD
POWER S/W (1ó-)
IC103
11
IC204
IC205
IC203
IC826
IC3009
IC3013
IC3011
MAIN PLD 3.3V
ADV7401 AVDD
ADV7401 PVDD
ADV7320 VAA
VIDEO SW ITCHING IC
OSD
VIDEO NJW 1321FP1
CPU VCC,FL DRIVER
POWER RELAY
LEVEL DIAGRAMS (1/2)
AVR-2307CI / AVR-2307 / AVR-887 / AVC-1930
12
LEVEL DIAGRAMS (2/2)
AVR-2307CI / AVR-2307 / AVR-887 / AVC-1930
13
AVR-2307CI / AVR-2307 / AVR-887 / AVC-1930
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。
Note : Abbreviation ahead of IC No. indicates the name of P.W.B., etc.
注):ICNo.の前の記号は、基板の名称を表します。
MAIN : MAIN UNIT CPU : CPU UNIT
CNT : CNT UNIT OPT. : OPTICAL UNIT
2CH-AMP : 2CH-AMP UNIT INPUT : INPUT UNIT
S-C VIDEO : S-C VIDEO UNIT COMP. : COMPONENT UNIT
HDMI : HDMI UNIT