User manual PIONEER C-AX10 service manual

[. . . ] ORDER NO. DOLBY DIGITAL RRV2327 DIGITAL CONTROL AMPLIFIER C-AX10 THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). Model Type C-AX10 KU/CA NY AC120V AC230V Power Requirement Remarks CONTENTS 1. SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EXPLODED VIEWS AND PARTS LIST . . . . . . . . . . . . . . . PCB CONNECTION DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] R ×2 AUDIO A ASSY G DSP ASSY H Tighten a screw Caution: · Reonnect FFC to the DSP ASSY after removing it once. · Connect the bus bar and chassis on the PC Board with lead wires (for earth). To disasembly of each Assy H AUDIO A ASSY 6 5 To AUDIO B ASSY 90 C-AX10 AUDIO B ASSY 1 Remove the AUDIO A ASSY. 14 Stand the AUDIO B ASSY and diagnose it. (AUDIO B ASSY works even if removes the AUDIO A ASSY. ) ×4 2 3 K VOLUME ASSY 6 Hook it on a cut part of the Rear Panel. 5 ×6 I AUDIO B ASSY 4 Remove the Sub Chassis and Side Frame A together. ×2 Caution: · Fix the SG ASSY to the suitable place with a screw (for earth). · Reconnect FFC to the DSP ASSY after removing it once. Remove a PCB Holder after removing two screws. Screw 8 ×2 7 D SG ASSY 8 ×4 Power Cord Styling in installation (AUDIO A and AUDIO B ASSYS) Caution: Perform styling if possible to under side. (do not seem to rise to upper side) Front side Bind (AUDIO B ASSY only) Pass the lead wires through the front side of heat sink. 12 ×6 13 11 Upper side: AUDIO A ASSY Under side: AUDIO B ASSY Heat Sink Bus bar Bind 9 10 Remove a Nut. Watch it from the front side, and perform styling in the left side of Bus Bar. Loosen two screws and remove a Rotary Knob L. Fall two capacitors to the rear side. 91 C-AX10 DIGITAL I/O and DSP ASSYS 1 ×8 (DIGITAL I/O ASSY) When diagnosing the analog input and output system All diagnoses are completed when connects the DIGITAL I/O ASSY. Hook it on a cut part of the Rear Panel. (DSP ASSY) 2 ×2 Power Cord Shield Plate H 3 ×2 4 A DIGITAL I/O ASSY 5 4 6 ×4 Connect all connectors from the AUDIO A and AUDIO B ASSYS. When diagnosing the A/D section of the FRAD ASSY 10 ×5 8 11 10 DSP ASSY G 7 Remove all connectors to connect the AUDIO A and AUDIO B ASSYS. Main Shield 9 Stand the DSP ASSY and diagnose it. When diagnosing one section of the microcomputer and digital input and output system 12 Install the DSP ASSY. Connect all connectors to the DISPLAY ASSY. DSP ASSY A DIGITAL I/O ASSY G DSP ASSY Connect Fix the PC Board with a screw in " s For service" on the Rear panel. G Fix the PC Board with a screw in " s For service" on the Rear panel. Connect all connectors to the FRAD ASSY. May remove the connectors to the AUDIO A and AUDIO B ASSYS. To FRAD ASSY 92 C-AX10 Styling in installation (DSP ASSY) Caution: Perform styling so that each wire does not come near. Bind Bind two pairs of wires in the player. Bind J2102 Clamp the wires to connect the DIGITAL I/O ASSY DIGITAL I/O ASSY 7 ×3 10 CN2109 9 FFC Front side Remove all screws. Power Cord Remove a CN101 from the Power Cord. Note: Do not remove a screw of the SG ASSY. CN1803 8 G DSP ASSY Bind in upper side of CN1803. Keep distance with wire of CN1803 and FFC away and bind it. 11 Remove four connectors. Front side CN301 Pass a wire through a slit of the shield plate every one set (three sets). Note: It becomes an equal interval wires of each group. CN407 CN406 FRAD ASSY 1 Remove the DIGITAL I/O ASSY, DSP ASSY and Main Shield. Heat Sink Assy E FRAD ASSY CN405 4 5 6 4 12 2 ×2 2 ×2 Unhook Unhook Side Wall Power Cord F 3 CRAD ASSY Note: Slide the PC Board to rear slide (2 or 3 cm away) after removing screws, connectors, Heat Sink ASSY and Rear Panel. And PC Board can lift to upper side when matches a projection part of the Side Wall with a cut part of the PC Board. Remove the Shield Plate B where is in the bottom of CRAD ASSY. (Three screws) 93 C-AX10 Power Transformer (T301, T401) When replacing the Analog Transformer (T401) ( 1 to 5 ) 14 ×7 1 2 Remove the DIGITAL I/O ASSY, DSP ASSY and Main Shield. Remove three connectors. Front side CN405 B AC ASSY 15 Cut a Binder (ZCA-BK1). I FRAD ASSY Subchassis B2 CN406 CN407 19 17 ×4 16 4 6 5 ×4 T301 (Digital) 3 CN101 Remove CN102. T401 (Audio) UL Tube (KU/CA type only) 18 ×3 Unhook When replacing the Digital Transformer (T301) ( 7 to 19 ) Styling in installation (PS ASSY) T301 (Digital) 7 9 ×2 10 13 11 Remove two connectors. Front side Diode AC ASSY C PS ASSY B 8 C PS ASSY Bind two wires (Blue/Black). Unhook two PCB Supports. 12 Unhook three PCB Supports. Bind two wires (Green/Brown) (Be careful not to touch the Press down five wires except diode. ) blue and black wires to under side with a binder of PS ASSY. Caution: Keep Blue/Black wires, Green/Brown wires and other five wires away each other, and perform styling. 94 C-AX10 Front Panel Section 1 ×2 7. 1. 5 PCB LAYOUT G DSP ASSY Main Shield Power Trans. Rear Panel 2 ×3 PS ASSY A B SG ASSY AC ASSY 3 Unhook 4 79 F CRAD ASSY DIGITAL I/O ASSY D AUDIO A ASSY C Subchassis B2 Side Wall H Door 3 Unhook E O P Shield Plate I N K VOLUME ASSY J DISPLAY ASSY ENC B ASSY 5 Remove a binder. Subchassis T2 FRAD ASSY Side Frame A Side Support M INPUT SW ASSY Side Alum. L Side Wall L ENC A ASSY Under Base 6 Remove a wire. AU DIO S BA SY I Diagnosis Front Panel Assy Caution in installation Install the Door by the opened state when installing the Front Panel. (so that an installed earth wire is caught between the Door, and there is the case that the Door does not opend. ) Side Alum. R 95 C-AX10 7. 2 PARTS 7. 2. 1 IC · The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. · List of IC TC74VHC257FT, TC74VHC244F, TC7WT74FU, TC74VHC4040FT, TC74VHC153FT, TC74VHC157F, TC74VHC163FT, DF1704E, BC4094BCFV, TC7W126FU, AT24C16N-10SI2. 5, M30622SFP, M38079SFP, AK5393VS TC74VHC257FT (DSP ASSY : IC1505) · Quad 2-Channel Multiplexer (3-state) · Block Diagram SELECT 1 1A 2 1B 3 2A 5 2B 6 3A 11 3B 10 4A 14 4B 13 OE 15 12 4Y 9 3Y 7 2Y 4 1Y · Truth Table INPUTS OE SELECT A H X X L L L L L H L H X L H X X : Don't Care Z : High Impedance B X X X L H OUTPUTS Z L H L H TC74VHC244F (DSP ASSY : IC1506) · Octal Bus Buffer · Pin Arrangement (Top view) 1G 1 1A1 2 2Y4 3 1A2 4 2Y3 5 1A3 6 2Y2 7 1A4 8 2Y1 9 GND 10 20 Vcc 19 2G 18 1Y1 17 2A4 16 1Y2 15 2A3 14 1Y3 13 2A2 12 1Y4 11 2A1 · Truth Table INPUTS G An L L L H H X OUTPUTS Yn L H Z X : Don't Care Z : High Impedance Yn : TC74VHC244F 96 C-AX10 TC7WT74FU (DSP ASSY : IC1605) · D-type Flip Flop with Present and Clear · Pin Arrangement (Top view) CK 1 D2 Q3 GND 4 C D S R 8 Vcc 7 PR 6 CLR 5Q · Truth Table INPUTS CLR PR D L H X H L X L L X H H L H H H H H X X : Don't Care CK X X X OUTPUTS FUNCTION Q Q L H CLEAR H L PRESET H H L H H L Qn Qn NO CHANGE TC74VHC4040FT (DSP ASSY : IC1606, IC1623) · 12-stage Ripple-carry Binary Counter · Block Diagram Q1 Q2 Q3 Q4 Q5 Q6 · Truth Table 9 7 6 5 3 2 CK CLR Output State X H All outputs "L" L Don't change L Go to the next state X : Don't Care D D CK Q R D CK Q R D CK Q R D CK Q R D CK Q R CK 10 CLR 11 CK Q R R Q CK D R Q CK D R Q CK D R Q CK D R Q CK D R Q CK D 1 Q12 15 Q11 14 Q10 12 Q9 13 Q8 4 Q7 97 C-AX10 TC74VHC153FT (DSP ASSY : IC1614) · Dual 4-channel Multiplexer · Block Diagram A 14 S0 S0 S1 B 2 S1 S2 S2 S3 S3 1C0 6 S0 1C1 5 S1 1C2 4 S2 1C3 3 S3 1G 2C0 2C1 2C2 2C3 1 10 11 12 13 7 1Y · Truth Table SELECT INPUTS B X L L L L H H H H A X L L H H L L H H C0 X L H X X X X X X DATA INPUTS C1 X X X L H X X X X C2 X X X X X L H X X C3 X X X X X X X L H STROBE OUTPUT G H L L L L L L L L Y L L H L H L H L H X : Don't Care 9 2Y Same as abobe block 2G 15 TC74VHC157F (DSP ASSY : IC1704, IC1804, IC1903, IC2003) · Quad 2-channel Multiplexer · Block Diagram 1A 2 4 1Y 1B 3 2A 5 7 2Y 2B 6 3A 11 9 3Y 3B 10 4A 14 12 4Y 4B 13 SELECT 1 ST 15 · Truth Table INPUTS ST SELECT A H X X L L L L L H L H X L H X X : Don't Care B X X X L H OUTPUT L L H L H 98 C-AX10 TC74VHC163FT (DSP ASSY : IC1620) · Synchronous Presettable 4-bit Counter · Block Diagram CLR 1 ENP 7 ENT 10 LOAD 9 L L 15 CARRY OUT A3 L L E CK Q D R Q · Truth Table D X L H X CK R H L L X Q L L H * Q H H L * E E X : Don't Care * : No Change 14 QA E B4 L L E CK Q D R Q 13 QB E C5 L L E CK Q D R Q 12 QC E D6 L L E CK Q D R Q 11 QD E CK 2 99 C-AX10 DF1704E (DSP ASSY : IC1902, IC2002) · Digital Filter · Block Diagram BCKIN 2 LRCIN 28 DIN 1 MD/CKO MC/LRIP ML/RESV MODE MUTE RST DEM 11 12 13 10 15 14 16 IIS IW0 IW1 34 5 OW0 OW1 20 19 26 BCKO 8X Oversampling Digital Filter with Fuction Controller Output I/F 25 WCKO 24 DOL 23 DOR Serial Input I/F Mode Control I/F SCK Crystal OSC Power Supply 17 18 27 SF0SF1 SRO 6 XTI 22 7 9 XTO CLKO VDD 8 Vss · Pin Function No. 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 Pin Name DIN BCKIN IIS IW0 IW1 XTI XTO Vss CLKO MODE MD/CKO MC/LRIP ML/RESV RST MUTE DEM SF0 SF1 OW0 OW1 NC VDD DOR DOL WCKO BCKO SRO LRCIN I/O I I I I I I O - O I I I I I I I I I I I - - O O O O I I Serial audio data input Bit clock input for serial audio data Format selection of input audio data Word selection of input audio data Word selection of input audio data Connect an oscillator or external clock input Oscillator output Ground Buffer output of system clock Pin Function Mode control selection ( H: Software mode, L: hardware mode) Mode control, data / 1/2 divided clock selection Mode control, clock / LRCIN polarity selection Mode control, latch, clock / Not used Reset It becomes reset state during this pin is L. Mute control Deemphasis control Deemphasis Deemphasis Sampling rate selection Sampling rate selection Data word selection of output audio Data word selection of output audio Non connection Power supply +5V Serial audio data output of R ch Serial audio data output of L ch Word clock output for serial audio data output Bit clock output for serial audio data output Filter characteristic selection L/R clock input (fs) 100 C-AX10 BU4094BCFV (DSP ASSY : IC2101, IC2107, IC2108, IC2118) · Port Expander · Block Diagram DATA 2 CLOCK 3 8-STAGE SHIFT REGISTER 10 Q's 9 Qs · Truth Table OUTPUT SERIAL CLOCK STROBE DATA ENABLE OUTPUT ± ± ± ± L L H H H H X X L H H X X X X L H X PARALLEL OUTPUTS Q1 Qn Z Z Z Z No Chg. [. . . ] (acoustic correction) PHONO(MM) . . . . . . . . . . . . (IHF A network, short circuit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (when 6 mV is input) Digital output jacks Coaxial 1-line: . . . . . . . . . . . . . . . . . . . . . 0. 5 Vp-p (Output impedance: 75 ) Optical 1-line ÷ The signal format during PDIF mode is Pioneer's own custom format, and it does not conform to the IEC60958 standards. Dynamic range (Direct function is on, Normal, 2-channel mode) Digital input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]