The following check should be performed for the continued protection of the customer and service technician.
7
Q
3
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.
Required measurement equipment etc: Oscilloscope, DVD
Q
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
DVD (Video terminal)No input
Adjustment
(1) Remove top cover and set VR101, VR102, VR103 on
1U-3475-1 (Convert 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
TEL
"ON".
(5) Presetting
FUNCTION:DVD
(6) Turn VR101 clockwise ( ) to adjust the
COMPONENT VideoY voltage (except H.Sync) to 714
±50 mVp-p. (Refer to Fig.1)
(7) Adjust the Variable Resistors of Cb: VR102 and Cr:
VR103 in the same way. (Refer to Fig. 2, 3)
7
3
(Do not connect speaker, dummy resistor, etc.)
6
13942296513
Playback the color-bar 75% of the Test Disc (Title 12)
Cb,Cr: 486±50 mVp-p. (U.S.A. & Canada model)
525±50 mVp-p. (Others)
3
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5
1
5
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ビデオセクション
コンポーネントビデオレベルの調整
調整に必要な測定器: Oscilloscope, DVD VIDEO PLAYER
テストディスク:DVD T-S01
No change to BUSY port "L" before DSP version read."□DSP□ERROR□13□"
(No error display, version display only)
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SEMICONDUCTORS
Only major IC's are shown, general IC's etc. are omitted to list.
主な半導体を記載しています。汎用の半導体等は記載を省略しています。
Q
IC’s
Note: Abbreviation ahead of IC No. indicates the name of P.W.B., etc.
注) :IC No. の前の記号は、基板の名称を表します。
M30624MGA (CO: IC506)
7
3
PO : Power P.W.B.AD : Audio/Digital P.W.B.
CV : Connect/Video P.W.B.DS : DSP P.W.B.
CO: Control P.W.B.VI : Video P.W.B.
AC : Amp Connect P.W.B.MA: Main Sub Ass'y
6
3
1
5
1
5
0
10081
8
9
AVR-3803/1083/AVC-3570
2
4
9
8
2
9
9
Type
1
TOP VIEW
30
3150
7
3
Q
Q
Op
Det
(Int.)Op(Ext.)
E↓&L
EuZIIPower down detect (Power down: L)
E↓&L
EdZIIProtection detect input (Detected: L)
E↑&L
ZIIRemote control signal input
y
u
Re s STBY Stop
1
6
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TEL 13942296513 QQ 376315150 892498299
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13942296513
M30624MGA Terminal Function
Pin
Pin NameFunctionI/O
No.
1P96/SOUT4 PLRDS DATAOC ZO/LO/L PLL & RDS control pin (LC72131 & LC72720)
2P95/CLK4PLRDS CLKOC ZO/LO/L PLL & RDS control pin (LC72131 & LC72720)
3P94/TB4PLL STBOC ZO/L O/L PLL control pin (LC72131)
4P93/TB3OSD RSTOC ZO/L O/L OSD control pin (M35015)
5P92/SOUT3 OSD DATAOC ZO/LO/L OSD control pin (M35015)
6P91/SIN3OSD STBOC ZO/LO/L OSD control pin (M35015)
7P90/CLK3OSD CLKOC ZO/LO/L OSD control pin (M35015)
8BYTEBYTE GND (Ext. data bus bit width switching, 16bit: L)
24 P76FUNC CLKOC ZO/LO/L CLK output for function switching control
25 P75FUNC DATAOC-ZO/L O/L DATA output for function switching control
26 P74FUNC STB2OC ZO/L O/L
27 P73/CTS2FL DATAOC ZO/LO/L FL tube control pin (LC75721E)
28 P72/CLK2FL CLKOC ZO/L O/L FL tube control pin (LC75721E)
29 P71/RXD2H/P DETI ZO/L O/L H/P detect input (Detected: H)
30 P70/TXD2TUNER POWERONEuZO/LO/L TUNER power on/off switching (H: ON)
31 P67/TXD1TxDOC ZO/LO/L Data transfer pin to outside
32 P66/RXD1RxDILv ZIIData receive pin from outside
33 P65/CLK1RESET2OCEdZO/LO/L SUB-µcom reset output
34 P64/CTS1ACKOCEdZO/LO/L MAIN-SUB µcom comm. control pin
35 P63/TXD0MOSIOCEdZO/LO/L MAIN-SUB µcom comm. control pin
36 P62/RXD0MISOILvEdZIIMAIN-SUB µcom comm. control pin
37 P61/CLK0Not Used (CLK)OC ZO/LO/L Not used
38 P60/CTS0E.VOL STBOC ZO/L O/L E-VR control output (TC94A32F)
39 P57E.VOL CLKOC ZO/LO/L E-VR control output (TC94A32F, TC9459)
40 P56E.VOL DATAOC ZO/LO/L E-VR control output (TC94A32F, TC9459)
41 P55/EPMFRASH EPMILv ZIIRewrite boot program start: L input set
42 P54VSDAI/OC ZIO/L VIDEO IC (Chroma decoder, 3D Y/C) control pin
43 P53VSCLI/OC ZIO/L VIDEO IC (Chroma decoder, 3D Y/C) control pin
44 P52FL RSTOCEdZO/LO/L FL tube control pin (LC75721E)
45 P51FL CEOC ZO/LO/L FL tube control pin (LC75721E)
46 P50/CEFRASH CEI ZIIRewrite boot program start: H input set
47 P47V.EXP CLKOC ZO/L O/L
TEL
48 P46 V.EXP DATAOC ZO/LO/L
49 P45V.EXP OEOCEdZO/LO/L
50 P44V.EXP STBOC ZO/L O/L
51 P43H/P RELAYOC ZO/LO/L H/P relay control (H: ON)
52 P42S BACK RELAYOC ZO/LO/L Relay control for SURROUND BACK SP
53 P41SA-RELAYOC ZO/LO/L Relay control for SURROUND A SP
54 P40SB-RELAYOC ZO/LO/L Relay control for SURROUND B SP
55 P37C-RELAYOC ZO/L O/L Relay control for CENTER SP
56 P36F-RELAYOC ZO/L O/L Relay control for FRONT SP
57 P35PRE F MUTEOC ZO/LO/L FRONT PREOUT output muting control, L: Muting
81 P07/D7VSIGDETI ZO/L O/L VIDEO signal detect port
82 P06/D6COMPSIGDETI ZO/L O/L COMPONENT signal detect port
83 P05/D5VIDEO POWEROC ZO/L O/L VIDEO power on/off switching (H: ON)
84 P04/D412V TRIGEROC ZO/LO/L
85 P03/D3
86 P02/D2RECINHBOC ZO/L O/L When RECOUT select is VCR1 or VCR2: H
87 P01/D1POWEROCEdZO/LO/L Power relay control output (H: ON)
88 P00/D0STANDBYOCEuZO/LO/L Standby LED drive output (H: Lighted)
89 P107/AN7KEY1ILvEuZO/L O/L Button input 1
90 P106/AN6KEY2ILvEuZO/L O/L Button input 2
SRROUND AMP current limiter control, when
SURROUND SP A+B: H
Same logic as POWER port,
when MAIN ZONE OFF mode: L
8
0
5
1
5
1
3
6
9
9
8
2
4
2
9
8
9
2
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TEL 13942296513 QQ 376315150 892498299
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TMP91CW12AF (AD: IC806)
AVR-3803/1083/AVC-3570
7
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TEL 13942296513 QQ 376315150 892498299
3
6
3
1
76
100
5
75
1
1
5
0
8
9
51
25
50
26
2
4
9
8
2
9
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TEL 13942296513 QQ 376315150 892498299
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13942296513
TMP91CW12AF Terminal Function
Pin
No.
1VREFLVREFLIAD Ref. V GND
2AVSSAVSSAD GND
3AVCCAVCC+3V
4P70/TA0INDIGITAL POWEROCEdZDigital power on/off switching (H: ON)
5P71/TA1OUTFGAINOCEdZIV AMP gain control output (Sub-woofer on: L)
6P72/TA3OUTDRECAOC ZDigital RECOUT switching
7P73/TA4INDRECBOC-ZDigital RECOUT switching
8P74/TA5OUTu SELCKOC ZADC/DIR data, clock switching control pin (L: ADC)
9P75/TA7OUTNot usedIEdZNot used (GND)
10 P80/TB0IN0/INT5 _INT1I
11 P81/TB0IN1/INT6 Not used (u ERROR)IEdZNot used (GND)
12 P82/TB0OUT0u ERR MUTEOC ZPop noise preventive mute control output (L: Mute)
13 P83/TB0OUT1u BSE(AC3 MUTE)OC Z
14 P84/TB1IN0/INT7 Not usedIEdZNot used (GND)
15 P85/TB1IN1/INT8 Not usedIEdZNot used (GND)
16 P86/TB1OUT0Not usedIEdZNot used (GND)
17 P87/TB1OUT1Not usedIEdZNot used (GND)
18 P90/TXD0MISOOCEdZMAIN-SUB µcom comm. control pin (Data output)
19 P91/RXD0MOSIIEdZMAIN-SUB µcom comm. control pin (Data input)
20 P92/SCLK0/CTS0 Not used (CLK)IEdZNot used (MAIN-SUB µcom comm. control pin)
21 P93/TXD1TxDOCEdZData transfer output to outside
22 P94/RXD1RxDILvEdZData receive input from outside
23 P95/SCLK1/CTS1 REQOCEdZ
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Pin NameFunctionI/O
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Symbol
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Type
u
Q
Q
Op
Det
(Int.)Op(Ext.)
E↓&L
EuZDIR control pin (LC89057W-E)
1
6
3
6
7
Res
3
5
1
3
Digital mute control output, when AC-3 or DTS
decode enable: L
MAIN-SUB µcom comm. control pin (Comm. request
from SUB-µcom: L)
52 P10/AD8/A8ROM_RST1OCEdZMemory reset for DSP (Reset: L)
53 P11/AD9/A9DSP1_RSOCEdZDSP reset output pin (Reset: L)
54 P12/AD10/A10DSP I/0 POWEROCEuZPower on: L (10ms later on after digital power on)
55 P13/AD11/A11DSP OSC ONOC ZON: H (20ms later on after digital power on)
56 P14/AD12/A12IRQ1_B1(DSP_REQ1) OC Z
57 P15/AD13/A13DINAOC ZDigital input switching
58 P16/AD14/A14DINBOC ZDigital input switching
59 P17/AD15/A15DINCOC ZDigital input switching
60 P20/A0/A16DACCSOC ZDAC control pin (PCM1791: Chip select)
61 P21/A1/A17DACMDIOC ZDAC control pin (PCM1791)
62 DVSSDVSSGND
63 NMINMIIFixed to H
64 DVCCDVCC+3V
65 P22/A2/A18DAC-RESET1OC Z
66 P23/A3/A19DACMCOC ZDAC control pin (PCM1791)
67 P24/A4/A20Not usedI ZNot used (GND)
68 P25/A5/A21DRECCOC ZDigital RECOUT switching
69 P26/A6/A22Not usedIZ Not used (GND)
70 P27/A7/A23Not usedI ZNot used (GND)
71 P30/RD/BOOT_BOOTIEuZ
72 P31/WRFLAG 0A(WRITE1)OCEuZDSP comm. control pin (DATA WRITE: H)
73 P32/HWRDSP_BOOTIEu H(Iu)
74 P33/WAITNot usedIEd H(Iu) Not used (GND)
75 P34/BUSRQNot usedIEd H(Iu) Not used (GND)
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76 P35/BUSAKNot usedIEd H(Iu) Not used (GND)
Pin NameFunctionI/OSymbol
3
7
6
3
1
13942296513
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5
u
Det
0
Q
Q
1
Op
(Int.)Op(Ext.)
3
6
7
3
Res
4
2
9
8
8
0
5
1
5
1
3
6
DSP (ADSST-MEL100:IRQ 1_) host I/F interrupt
request output, REQ: L
DAC control pin
(L: Power down mode, ↑: Reset, H: Normal)
With “L” input set during reset, rewrite boot program
start
DSP or SUB rewrite boot program
(When DSP rewrite “L” input)
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