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SERVICE MANUAL
AG-D7900
AV Digital Home Theater Receiver
NOTES
PC boards shown are viewed from parts side.
The parts with no reference number or no parts number in the
exploded views are not supplied.
As regards the resistors and capacitors, refer to the circuit diagrams
contained in this manual.
£ Parts marked with this sign are safety critical components. They
must be replaced with identical components - refer to the appropriate
parts list and ensure exact replacement.
Effective : February, 2002 S-0000A
CONTENTS
SPECIFICATIONS.................................................................................................................................3
SAFETY INSTRUCTIONS ...................................................................................................................4
MEASUREMENTS AND ADJUSTMENTS ........................................................................................5
FIP DISPLAY ........................................................................................................................................8
DISPLAY PIN CONNECTION ..............................................................................................................9
IC BLOCK DIAGRAMS AND PIN FUNCTIONS ................................................................................10
EXPLODED VIEWS AND PARTS LIST .............................................................................................22
PC BOARDS AND PARTS LIST ........................................................................................................ 24
INCLUDED ACCESSORIES ...............................................................................................................30
2
SPECIFICATIONS
Amplifier Section AM Tuner Section
Surround Output Power (0.9 % THD, 1 kHz, 8 ohms): Tuning Range:
60 + 60 watts (Front) 530 kHz 1,720 kHz (10 kHz steps)
60 watts (Center) Usable Sensitivity: 55 dB/m
60 + 60 watts (Rear) Total Harmonic Distortion: 0.8% at 85 dB/m
Delay Time: Signal-to-Noise Ratio: 45 dB at 85 dB/m
DOLBY DIGITAL: REAR 0 15 ms
CENTER 0 5 ms Video Section
DOLBY PRO LOGIC: REAR 15 30 ms Input Sensitivity/Impedance: 1.0 Vp-p/75 ohms
Audio Input Sensitivity/Impedance: Output Level/Impedance: 1.0 Vp-p/75 ohms
*LINE: 220 mV/47 k ohms
Output Level/Impedance: General
CD-R/TAPE REC: 200 mV/2.2 k ohms Power Requirements:
Frequency Response: 120 V AC, 60 Hz (U.S.A./ Canada model)
*LINE: 20 Hz 65 kHz, +1/ 3 dB 120/230 V AC, 50-60Hz (General Export model)
Signal-to-Noise Ratio: Power Consumption:
*LINE: 95dB (IHF-A) 2.5 A
Tone Control: AC Outlets:
BASS: ± 10 dB at 100 Hz Switched x 2, Total 100 W max. (1 A max.)
TREBLE: ± 10 dB at 10 kHz Dimensions (W x H x D)
435 x 165 x 350 mm (17-1/8" x 6-1/2" x 13-3/4")
Digital Audio Section Weight (net):
Sampling Frequency: 32 kHz, 44.1 kHz, 48 kHz, 96 kHz 8.2kg (18-1/16lbs) (U.S.A./ Canada model)
DIGITAL Input Level/Impedance: 8.4kg (18-1/2lbs) (General Export model)
DIGITAL 1, 2 (OPTICAL): 15 dBm -- 21 dBm Standard Accessories:
DIGITAL 3 (COAXIAL): 0.5 Vp-p / 75 ohms AM Loop Antenna x 1
FM T-type Antenna x 1
FM Tuner Section Remote Control Unit (UR-417) x 1
(Without notes 100.1 MHz, 65 dBf)
Tuning Range:
87.5 MHz 108.0 MHz (100 kHz steps) * LINE means CD, CD-R/TAPE, VCR/VIDEO 1, DBS/VIDEO 2,
Usable Sensitivity (IHF): DVD/VIDEO 3 and AUX/VIDEO 4.
Mono: 11.2 dBf
50 dB Quieting Sensitivity: < Improvements may result in specifications and features
Mono: 15.3 dBf changing without notice.
Stereo: 38.5 dBf
< Illustrations may differ slightly from production models.
Capture Ratio: 2.0 dB
Image Rejection Ratio: 45 dB
AM Suppression Ratio: 55 dB
Total Harmonic Distortion (1 kHz):
Mono: 0.4%
Stereo: 0.5%
Frequency Response: 30 Hz 15 kHz, +1/ 1.5 dB
Stereo Separation (1 kHz): 40 dB
Signal-to-Noise Ratio:
Mono: 75 dB
Stereo: 70 dB
3
SAFETY INSTRUCTIONS
PRECAUTIONS DURING SERVICING The leakage-current should be less than 0.5mA rms AC.
1. Parts identifide by the ( )symbol parts are critical The resistance measurement should be done between
for safety. Replace only with parts number specified. accessible exposed metal parts and power cord plug
2. In addition to safety, other parts and assemblies are prongs with the power switch (if included) "ON". The
specified for conformance with such regulations as resistance should be more than 2.2M Ohms.
those applying to spurious radiation. PRECAUTIONS IN REPAIRING
These must also be replaced only with specifide When repairing or adjusting the unit, please note the
replacements. following points.
Examples :RF converters, tuner units, antenna 1. Do not put excessive pressure on the mechanical
selectswitches, RF cables, noise blocking capacitors, part (operation part), including the pick-up block, as
noise blocking filters, etc. extremely high mechanical precision is required in
3. Use specified internal wiring. Note especially : these parts.
1) Wires covered with PVC tubing 2. When the base is removed for repair adjustment,
2) Double insulated wires make sure that there are no metal obiects in the
3) High voltage leads narrow gap between the P. C. board or the mecha
4. Use specified insulating materials for hazardous live parts and the base
parts. Note especially: 3. The Micro-Computer and the CD signal processing
1) Insulation Tape ICs can be damaged by static electricity or leakage
2) PVC tubing from a soldering iron during repairing. While
3) Spacers(insulating barriers) soldering, please take the precautions against
4) Insulation sheets for transistors leakage as in the illustration.
5) Plastic screws for fixing micro switches
5. When replacing AC primary side components
(transformers, power cords, noise blocking
capacitors, etc.), wrap ends of wires securely about
the terminals before soldering.
GND
6. Make sure that wires to do not contact heat 4. Do not loosen any screws in the pick-up block.
producing parts (heat sinks, oxide metal film When handing the pick-up block, please refer to the
resistors, fusible resistors, etc.). points to NOTE when replacing the pick-up block.
7. Check that replaced wires do not contact sharp 5. Keep safety for hazardous invisible Laser Radiation,
edged or pointed parts. DO NOT watch the Laser Beam (Objective lens)
8. Also check areas surrounding repaired locations. directly.
9. Make sure that foreign objects (screws, solder 6. Models for some countries, laser warning labels are
droplets, etc.) do not remain inside the set. affixed on the unit and inside of the unit, as shown
MAKE YOUR CONTRIBUTION TO PROTECT below. Read it carefully for your safety, when
THE ENVIRONMENT repairing or adjusting the unit.
Used batteries with the ISO symbol for recycling
as well as small accumulators (rechargeable
batteries), mini-batteries (cells) and starter
batteries should not be thrown into the garbage
can.
Please leave them at an appropriate depot. All other house-
hold batteries can be thrown out with the household waste.
SAFETY CHECK AFTER SERVICING
After servicing, make measurements of leakage-current
or resistance in order to determine that exposed parts
are acceptably insulated from the supply circuit.
The leakage-current measurement should be done
between accessible metal parts (such as chassis,
ground terminal, microphone jacks, signal input/output
connectors, etc.) and the earth ground through a
resister of 1500 ohms paralleled with a 0.15
capacitor, under the unit's normal working conditions.
4
MEASUREMENTS AND ADJUSTMENTS
ALIGNMENT INSTRUCTIONS
EQUIPMENT NEEDED:
AM Signal Generator
FM Signal Generator
Oscilloscope
VTVM(AC, DC)
Test loop antenna (AM Adjustment)
Dummy antenna (FM Adjustment)
Distortion analyser
IMPORTANT
1. Check power-source voltage.
2. Set the function switch to band aligned.
3. Keep the signal input as low as possible to adjust accurately.
4. Modulation and modulation frequency.
Item
Modulation Modulation frequency
Band
AM 30% 400Hz
100% (40 kHz Dev.) [E/UK]
FM 400Hz
100% (75 kHz Dev.) [US]
ADJUSTMENT POINT
AM LOOP ANT FM ANT
(FOR EUR version)
ANT TERMINAL
L2 L1 L1
FM ANT COIL
PACK1 L2
L4 L3
L104 CT10 L105
L5 L3
IFT L4 FM RF COIL
L6
J205 L5
L7 L6
L7 FM OSC COIL
J207 (FOR UL version)
L3 L3 FM ANT COIL
L5 L4
T102 L6 L4
IC12
T1 L5 FM RF COIL
L6
VR13
T101 L7 FM OSC COIL
L7
T1 FM IFT
VR11
CT10 AM ANT TRIMMER (1503kHz/1510kHz)
J208
L104 AM ANT COIL
VR12
L105 AM OSC COIL
T101 FM IFT COIL
T102 AM IFT COIL (612kHz/610kHz)
IC11 VR13 FM SD ADJUSTMENT
VR12 AM SD ADJUSTMENT
VR11 FM SEPARATION ADJ
J208 FM/AM VT
J205
FM OFFSET ADJ TP
J207
5
1. TUNING FREQUENCY RANGE ADJUSTMENTS
(FM) DC VOLTMETER ................ CONNECT TO TEST POINT J208 and GND
NO. Band Frequency Adjust for Adjustment
1 FM 87.50MHz 1.6V L7
J208 2 AM 530 kHz 1V L105
[US/C] [530 kHz] [1V] [L105]
2. AM TRACKING ADJUSTMENT
Signal Generator ........................ Connects to the AM ANT. Coil through the loop antenna.
Adjust for the indication of VTVM of the wave form of scope to be maximum.
BAND Step Frequency Adjust for Adjustment
1 610 kHz Maximum sensitivity T102, L104
[US/C] [610 kHz] Maximum sensitivity T102, L104
AM 2 1510 kHz Maximum sensitivity CT10
[US/C] [1510 kHz] Maximum sensitivity CT10
3 Repeat steps 1 and 2 several times.
3. FM-RF ADJUSTMENT
Signal Generator ........................ Connect to FM ANT JACK (FM IN) through the dummy.
NO. Frequency Adjust for Adjustment
1 90.10MHz Maximum Sensitivity L3, L5, L6
2 Repeat step 1 several times.
6
4. FM MONO DISTORTION ADJUSTMENT
DC VOLT METER ........................Connect to J205 (-), J207 (+) through the chock coil (100uH).
Signal Generator ........................Connect to FM ANT Jack (FM IN) through the dummy.
Distortion Meter .........................Connect to the output.
NO. Frequency Adjust for Adjustment
1 100.10MHz
DC Voltmeter 0V T101
J205
2 100.10MHz DC Voltmeter 0V
T101
J207 Minimum T.H.D
3 Repeat steps 1 and 2 several times.
5. FM/AM AUTO STOP LEVEL ADJUSTMENT
FM Signal Generator..................Connect to FM ANT Jack (FM IN) through the dummy.
AM Signal Generator .................Connect to AM ANT. Coil through the Loop antenna.
BAND Step Signal Generator Adjust for Adjustment
1 990KHz 82dB TUNED Display ON VR12
AM
[US/C] [990KHz]
2 990KHz 81dB TUNED Display OFF VR12
[US/C] [990KHz]
FM 1 100.1MHz 32dB TUNED Display ON VR13
2 100.1MHz 31dB TUNED Display OFF VR13
7
FIP DISPLAY
ANODE CONNECTION
10G 9G 8G 7G 6G 5G 4G 3G 2G 1G
P1 SOURCE d2 d2 d2 d2 d2 d2 d2 d2 kHz
P2 AUX d1 d1 d1 d1 d1 d1 d1 d1 1d
P3 LD e e e e e e e e 1e
P4 DVD r r r r r r r r 1c
P5 VCR 1 p p p p p p p p 1g
P6 REC n n n n n n n n 1f
P7 c c c c c c c c 1b
P8 SP. f f f f f f f f 1a
P9 A g g g g g g g g M
P10 B m m m m m m m m 2d
P11 CHURCH h h h h h h h h 2e
P12 DISCO j j j j j j j j 2c
P13 STADIUM k k k k k k k k 2g
P14 HALL b b b b b b b b 2f
P15 THEATER a2 a2 a2 a2 a2 a2 a2 a2 2b
P16 PCM a1 a1 a1 a1 a1 a1 a1 a1 2a
P17 AC-3 S1 S1 S1 S1 S1 S1 S1 S1 DELAY.T
P18 STEREO S2 S2 S2 S2 S2 S2 S2 S2 PRESET CH.
P19 3 S3 S3 S3 S3 S3 S3 S3 S3 MEMO
P20 S4 S4 S4 S4 S4 S4 S4 S4 TAPE
P21 DIGITAL RDS Dp TA MHz
P22 PRO LOGIC DTS TUNED STEREO PTY RT TP mS
8
PIN CONNECTION
47 1
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Connection F2 F2 NP NX NX NX NX P22 P21 P20 P19 P18 P17 P16 P15
Pin No. 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Connection P14 P13 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 NX
Pin No. 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
Connection NX NX NX NX 1G 2G 3G 4G 5G 6G 7G 8G 9G 10G NP
Pin No. 46 47
Connection F1 F1
9
IC PIN FUNCTION (u-COM : ANAM1308AT,O.T.P :TMP87PM78F) : IC71
PIN No. SYMBOL I/O DESCRIPTION
1,25 VDD - Power Supply Port(+5V)
2,3 Function SW1,SW2 I Function Encoder Control Port
4 Speaker ON/OFF O Front Speaker Relay Drive Port("H")
5 NC - Not Use(No connection)
6 DSP Reset O Reset (Initial Clear) Port for YSS912
7 Surr. CLK O Surr. CLK Output Port
8 DATA OUT O Data Output Port for YSS912
9 Surr. DATA O Surr. DATA Output Port
10 CS O Chip Selector Port for YSS912
11 CS O Chip Selector Port for AK4112
12 CSBN O Sub DSP Chip Selector for YSS912
13,14 RDS CLK/DATA I RDS IC(SA6579TV1) CLK/DATA Port
15 Stereo IN I Stereo Display Control Port("L")
16 Tuned IN I Tuned Display Control Port("L")
17 ~ 21 KEY Matrix I Resistor Divide Key Control Input (17,18 Pin: NOT USE)
22,30 Vss - Device GND Port
23 Vass - Device Analog GND Port
24 Varef - A/D Converter Reference Voltage
26 BACKUP I Back Up Mode Control Input
27 TEST - NC(GND)
28,29 VOLUME UP/DOWN I Master Volume Up/Down Control Port
31 X IN I
8MHz Crystal Connection Port
32 X OUT O
33 RESET (L) I Reset Input
34 REMOTE IN I Remote Control Sensor Data Input
35 BUS IN(NC) I System Remote Control Input(No Connection))
36 HEADPHONE IN O Headphone JACK INPUT("H") - Connet to GND
37 E.VOL.DATA O
38 E.VOL.CLK I Electronic Vol. IC(M62446FP) DATA/CLK/STB Port
39 E.VOL.CE O
40 PLL.DATA IN I PLL IC (LC72131) DATA Input Port
41 PLL.CE O PLL IC (LC72131) Chip Enable Control Port
42 DATA 3 O Function IC Data Input Port
43 CLK 3 O Func./PLL IC CLK Control Port
44 FUNC. STB O Function Strobe Control Output
45 FUNC. MUTE O Function Mute Control Output("H")
46 SURR. MUTE O Surrounc Mute Control Output("H")
47 Power ON/OFF O Power ON/OFF Control Port("H")
48 SURR. H O Surr. ON/OFF Contol Port("H")
49 PROTECT IN I Protect Input Port("L")
50 FIP Vkk - FIP (FLT) -28V Negative Power Supply For FIP Blinking
51 ~ 60 FIP Grid O FIP (FLT) Grid Control Outputs
61 ~ 82 FIP Segment O FIP (FLT) Segment Control Outputs
83 ~ 86 Option l Area/Function Option Ports
87 ~ 94 N.C - Not Use(No connection)
95 SUB. LED O Subwoofer LED Drive Port
96 MUTE LED O MUTE LED Drive Port
97 ~ 99 VIDED A/B/C O Video IC(NJM2296M/LA7952) Control Ports
100 N.C - Not Use(No connection)
10
11
Dolby Digital/Pro Logic DTS DECODER (YSS912C:INPUT IC43)
PIN No. SYMBOL I/O DESCRIPTION
1,31,71 VDD1 - +5V Power Supply(for I/Os)
2 RAMCEN O External SRAM interface /CE
3 RAMA16 O External SRAM interface address 16
4 RAMA15 O External SRAM interface address 15
5 SDIB0 I+ PCM input 0 to Sub DSP(not use)
6 SDIB1 I+ PCM input 1 to Sub DSP(not use)
7 SDIB2 I+ PCM input 2 to Sub DSP(not use)
8 XI I+
Crystal oscillator connection(12.288MHz)
9 XO O
10, 30 VSS - Ground
11 AVDD - +3.3V power supply (for PLL circuit)
12 SDIB3 I+ PCM input 3 to Sub DSP(not use)
13 TEST - Test terminal(to be open in normal use)
14 TEST - Test terminal(to be open in normal use)
15 OVFB O Detection of overflow at Sub DSP (not use)
16 DTSDATA O Detection of DTS data (not use)
17 AC3DATA O Detection of AC-3 data (not use)
18 SDOB3 O PCM output from Sub DSP
19 CPO A Output terminal for PLL,to be connected to ground through the external analog filter circuit
20 AVSS - Ground for PLL circuit)
21,41,51,81,91 VDD2 - +3.3V power supply (for core logic)
22 SDOA2 O PCM output from Main DSP (C,LFE)
23 SDOA1 O PCM output from Main DSP (LS,RS)
24 SDOA0 O PCM output from Main DSP (L,R)
25 ~ 29 RAMA 14~10 O External SRAM interface address 14~10
32 ~ 35 OPORT 0~3 O Output port for general purpose
36 ~ 39 OPORT 4~7 O Output port for general purpose (not use)
40,50,60,80,90,100 VSS - Ground
42 ~ 44 RAAM 9~7 O External SRAM interface address 9~7
45 ~ 47 SDOB 2~0 O PCM output from Sub DSP
48 SDBCK1 I+ Bit clock input for SDOA,SDIB,SDOB (not use)
49 SDWCK1 I+ Word clock input for SDOA,SDIB,SDOB (not use)
52 NONPCM O Detection of non-PCM data (not use)
53 CRC O Detection of AC-3 CRC error (not use)
54 MUTE O Detection of auto mute (not use)
55 KARAOKE O Detection of AC-3 karaoke data (not use)
56 SURENC O Detection of AC-3 2/0 mode Dolby surround encoded input (not use)
57 /SDBCK 0 O Inverted SDBCK0 clock output (refer to Block diagram)
58 RAMA6 O External SRAM interface address 6
59 RAMA5 O External SRAM interface address 5
61 RAMA4 O External SRAM interface address 4
62 /IC Is Initial clear
63 TEST - Test terminal (to be ofen in normal use)
64 RAMA3 O External SRAM interface address 3
65 /CSB Is+ Sub DSP Chip select
66 /CS Is Microprocessor interface Chip select input
67 SO Ot Microprocessor interface serial data output
68 SI Is Microprocessor interface /Sub DSP Serial data input
69 SCK Is Microprocessor interface /Sub DSP clock input
12
PIN No. SYMBOL I/O DESCRIPTION
70 RAMA2 O External SRAM interface address 2
72 ~ 79 RAMD0~7 I+/O External SRAM interface data (STREAM0~7 output when External SRAM is not in use)
82 SDWCK0 I Word clock input for SDIA, SDOA, SDIB, SDOB
83 SDBCK0 I Bit clock input for SDIA,SDOA,SDIB,SDOB
84 SDIA0 I AC-3 Bitstream (or PCM) data input for Main DSP
85 SDIA1 I AC-3 Bitstream (or PCM) data input for Main DSP
86 RAMA1 O External SRAM interface address 1
87 RAMA0 O External SRAM interface address 0
88 RAMWEN O External SRAM interface /WE
89 RAMOEN O External SRAM interface /OE
92 ~ 99 IPORT7~0 I+ Input port for general purpose (not use)
NOTE) Is: Schmidt trigger input terminal It: Input terminal with pull-up resistor
O: Digital output terminal Ot: Tri-state digital output terminal
A: Analog terminal
YSS912C PIN CONFIGURATION
RAMWEN
RAMOEN
SDWCK0
SDBCK0
IPORT0
IPORT1
IPORT2
IPORT3
IPORT4
IPORT5
IPORT6
IPORT7
RAMA0
RAMA1
SDIA1
SDIA0
VDD2
VDD2
VSS
VSS
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
VDD1 1 80 VSS
RAMCEN 2 79 RAMD7
RAMA16 3 78 RAMD6
RAMA15 4 77 RAMD5
SDIB0 5 76 RAMD4
SDIB1 6 75 RAMD3
SDIB2 7 74 RAMD2
XI 8 73 RAMD1
XO 9 72 RAMD0
VSS 10 71 VDD1
AVDD 11 70 RAMA2
SDIB3 12 69 SCK
TEST 13 68 SI
TEST 14 67 SO
OVFB 15 66 /CS
DTSDATA 16 65 /CSB
AC3DATA 17 64 RAMA3
SDOB3 18 63 TEST
CPO 19 62 /IC
AVSS 20 61 RAMA4
VDD2 21 60 VSS
SDOA2 22 59 RAMA5
SDOA1 23 58 RAMA6
SDOA0 24 57 /SDBCK0
RAMA14 25 56 SURENC
RAMA13 26 55 KARAOKE
RAMA12 27 54 MUTE
RAMA11 28 53 CRC
RAMA10 29 52 NONPCM
VSS 30 51 VDD2
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
VDD1
OPORT0
OPORT1
OPORT2
OPORT3
OPORT4
OPORT5
OPORT6
OPORT7
VSS
VDD2
RAMA9
RAMA8
RAMA7
SDOB2
SDOB1
SDOB0
SDBCK1
SDWCK1
VSS
13
14
IPORT 0~7
/CS
SO
SI
SCK
OPORT 0~7
/CSB
SCK
SI
Microprocessor Coefficient
Interface Program RAM
YSS912C BLOCK DIAGRAM
Control Signals Control Signals
Control Registers SDBCK1
SDWCK1
/SDBCK0
SDBCK0
SDWCK0
SDOACKSEL SDOBCKSEL SDOBCKSEL
L,R
SDOB0
LS,RS
SDIA0 SDOB1
C, LFE
SDIBSEL
24 * 16
24 * 16
decoder
SDOB2
Sub DSP
SDIASEL
Main DSP
Input Buffer
SDIA1
SDIA Interface
SDIB Interface
SDOA Interface
SDOB Interface
AC-3/Pro Logic/DTS
SDOB3
SURENC STREAM 0~7
External RAM
KARAOKE Operating clock interface
MUTE Data RAM
(30MHz)
CRC
AC3DATA ERAMUSE
Delay RAM
SDIA Interface
DTSDATA PLL
NONPCM
XI
XO
CPO
OVFB
SDIB0
SDIB1
SDIB2
SDIB3
SDOA0
SDOA1
SDOA2
RAMCEN
RAMOEN
RAMWEN
RAMA 0~7
RAMA 0~16
M62446FP (ELECTRONIC VOLUME/INPUT IC31)
OUT4 1 42 DVoo
OUT3 2 OUTPUT 41 CLK
PORT volume
OUT2 MCU I/F
3 40 DATA
OUT1 4 39 LATCH
AVoo 5 volume 38 DGND
SWin 6 37 AGND
GNDS 7 36 SWout
volume
SRin 8 35 SRout
SLin 9 34 SLout
GNDC 10 33 Cout
volume
Cin 11 32 Rout
GNDR 12 31 Lout
Rin 13 volume 30 AVss
GNDL 14 29 CL1
Lin 15 28 CL2
BYPASSR 16 volume 27 CR1
BYPASSL 17 26 CR2
LTRE 18 25 RTRE
LBASS3 19 tone tone 24 RBASS3
LBASS2 20 23 RBASS2
LBASS1 21 22 RBASS1
AV4527VQ (ADC/DAC/INPUT IC42)
RX1 RX2 RX3 RX4
Audio
LIN+ I/F XTI
LIN- ADC HPF XTO
RIN+ MCLK DIR
ADC HPF MCLK MCKO
RIN- LRCK LRCK AK4110
BICK
BICK
LRCK DAUX
LOUT1 LPF DAC DATT SDTO
BICK
FOMAT
ROUT1 LPF DAC DATT CONVERTER
SDOUT
LRCK
LOUT2 LPF DAC DATT SDOS
SDIN1 BICK
AC3
SDIN2 SDTO
ROUT2 LPF DAC DATT SDIN3 SDIN
SDTI1
SDOUT1
SDTI2
LOUT3 LPF DAC DATT SDOUT2
SDTI3
SDOUT3
ROUT3 LPF DAC DATT AK4527
15
PIN ASSIGNMENT (74HCU04AFN : IC40 )
1A 1 14 Vcc
1Y 2 13 6A
2A 3 12 6Y
2Y 4 11 5A
3A 5 10 5Y
3Y 6 9 4A
GND 7 8 4Y
LOGIC SYMBOL
(1) (2)
1A 1Y
(3) (4)
2A 2Y
(5) (6)
3A 3Y
(9) (8)
4A 4Y
(11) (10)
5A 5Y
(13) (12)
6A 6Y
TRUTH TABLE
A Y
L H
H L
16
AK4112AVF (DIR/INPUT IC41)
AVSS AVDD R MCKO1 MCKO2 XTI XTO
RX1 Clock Clock X'tal
RX2 Input Recovery Generator Oscillator
RX3 Selector
RX4 96kHz FS96
Detect
DAUX
LRCK
Audio BICK
V/TX DAIF SDTO
DEM I/F
Decoder
DVDD
DVSS
TVDD
CSN
System uP CCLK
Control AC-3/MPEG Error I/F CDTO
PDN Detect Detect CDTI
AUTO ERF P/S="L"
[Serial Control Mode]
AVSS AVDD R MCKO1 MCKO2 XTI XTO
Clock Clock X'tal
RX1 Recovery Generator Oscillator
96kHz FS96
Detect
DAUX
LRCK
BICK
V DAIF SDTO
DEM
Decoder Audio DIF0
I/F DIF1
DVDD DIF2
DVSS 4
TVDD
OCKS0
OCKS1 OCKSO
CMO System OCKS1
CM1 Control AC-3/MPEG Error CM0
PDN Detect Detect CM1
AUTO ERF P/S="H"
[Parallel Control Mode]
17
LC72131 (PLL SYNTHESIZER/ TUNER IC11)
XIN REFERENCE PHASE DETECTOR PD
DIVIDER CHARGE PUMP
XOUT
AIN
SAMLLOM COUNTER UNLOCK
FMIN 1/16, 1/17 4bits DETECTOR AOUT
12bits PROGRAMMABLE
AMIN DIVIDER
CE
DI CCB
DATA SHIFT REGISTER UNIVERSAL
IFIN
LATCH COUNTER
I/F
CL
DO
POWER
VDD ON
RESET
VSS
BO1 BO2 BO3 BO4 I01 I02
LA1837 (MPX + IF / TUNER IC12)
AM SD
ADJ
3 rd 5 th
DECODER
ANTI-BIRDIE
FM
18
KIC9164AF (FUNCTION/INPUT IC20)
BLOCK DIAGRAM
Vss GND VDD
1 14 28
L-S 1 2 27 R-S 1
L-S 2 3 26 R-S 2
L-COM 1 4 25 R-COM1
L-S 3 5 24 R-S 3
LATCH CIRCUIT
LEVEL SHIFTER
LEVEL SHIFTER
LATCH CIRCUIT
L-S 4 6 23 R-S 4
L-COM 2 7 22 R-COM2
L-S 5 8 21 R-S 5
L-S 6 9 20 R-S 6
L-COM 3 10 19 R-COM3
L-S 7 11 18 R-S 7
L-COM 4 12 17 R-COM4
ST 13 16 DATA
15 CK
SHIFT REGISTER
KIC9163AF (FUNCTION/INPUT IC21)
BLOCK DIAGRAM
Vss GND VDD
1 14 28
L-S 1 2 27 R-S 1
L-S 2 3 26 R-S 2
L-COM 1 4 25 R-COM1
L-S 3 5 24 R-S 3
LATCH CIRCUIT
LEVEL SHIFTER
LEVEL SHIFTER
LATCH CIRCUIT
L-S 4 6 23 R-S 4
L-COM 2 7 22 R-COM2
L-S 5 8 21 R-S 5
L-S 6 9 20 R-S 6
L-COM 3 10 19 R-COM3
L-S 7 11