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COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
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CDX-CA890X • UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.) : LEAD FREE MARK Unleaded solder has the following characteristics.
CDX-CA890X SECTION 1 GENERAL This section is extracted from instruction manual. Note Location of controls If the display disappears by pressing (OFF) , it cannot Card remote commander RM-X118 be operated with the card remote commander unless (SOURCE) on the unit is pressed, or a disc is inserted to activate the unit first.
CDX-CA890X SECTION 2 DISASSEMBLY Note : This set can be disassemble according to the following sequence. 2-5. CHASSIS (T.U) ASSY 2-1. SUB PANEL ASSY (Page 9) (Page 7) 2-6. DISC IN BOARD 2-7. SERVO BOARD 2-2. CD MECHANISM BLOCK (Page 10)
CDX-CA890X 2-2. CD MECHANISM BLOCK 7 bracket (CD) 5 CD mechanism block 6 PTT 2.6x4 2 PTT 2.6x6 1 PTT 2.6x6 4 CNP301 2-3. MAIN BOARD 3 PTT 2.6x6 5 MAIN board 4 PTT 2.6x6 1 PTT 2.6x6 2 PTT 2.6x6...
CDX-CA890X 2-8. SHAFT ROLLER ASSY • When installing, take note of the positions arm (roller) and washers. (Fig. 1) 3 retaining ring (roller) bearing (roller) bearing (roller) 4 bearing (roller) washer (RA) retaining ring (roller) washer (RA) Fig. 1 6 PTT 2x4...
NCO (VCC) Not used. (Open) TELATT Telephone attenuator detection input NCO (VCC) Not used. (Fixed at H in this set) UNISO SONY-BUS data output UNISI SONY-BUS data input UNICKO SONY-BUS clock output I2C_SIO C BUS serial data input/output Not used. (Open)
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CDX-CA890X Pin No. Pin Name Pin Description TSTB CD text parameter strobe output for CD servo IC. RFOK RFOK signal input from CD servo IC. CD_RST Reset signal output for CD servo IC. Command/parameter discrimination signal output for CD servo IC.
CDX-CA890X 3-6. PRINTED WIRING BOARDS — CD MECHANISM SECTION — • Refer to page 17 for Circuit Boards Location. : Uses unleaded solder. THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.)
CDX-CA890X • Refer to page 17 for Waveforms and page 18 for Common Note on Schematic Diagram. 3-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION — • Refer to page 27 for IC Block Diagrams. TP77 TP78 TP89 TP79 TP80 TP81...
CDX-CA890X • Refer to page 18 for Common Note on Schematic Diagram. 3-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 29 for IC Block Diagrams. C411 Q407 R407 C438 C410 CN401 C201 Q403 R403 C203 R201...
CDX-CA890X • Refer to page 17 for Waveforms and page 18 for Common Note on Schematic Diagram. 3-10. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 28 for IC Block Diagrams. (Page 22) (Page C301 C307 R303...
CDX-CA890X SECTION 4 EXPLODED VIEWS NOTE: • The mechanical parts with no reference • Color Indication of Appearance Parts The components identified by number in the exploded views are not supplied. Example : mark 0 or dotted line with mark •...
CDX-CA890X 4-4. CD MECHANISM SECTION (1) (MG-393XA-121//Q) not supplied (DISC IN board) not supplied (LOAD board) not supplied supplied not supplied not supplied not supplied M903 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-3315-247-B CHASSIS (T.U) ASSY...
CDX-CA890X 4-6. CD MECHANISM SECTION (3) (MG-393XA-121//Q) M901 supplied (LIMIT board) M902 not supplied (SUB (CD) board) The components identified by mark 0 or dotted line with mark. 0 are critical for safety. Replace only with part number specified. Ref. No.
CDX-CA890X SECTION 5 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by mark 0 or dotted line with mark. the parts list may be different from the they are seldom required for routine service.
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CDX-CA890X MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R925 1-216-813-11 METAL CHIP 1/10W R999 1-216-864-11 METAL CHIP 1/10W R927 1-216-813-11 METAL CHIP 1/10W R929 1-216-813-11 METAL CHIP 1/10W < SWITCH > R931 1-216-809-11 METAL CHIP...