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Sony RM-VZ950T Service Manual

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RM-VZ950T
SERVICE MANUAL
AEP Model
Ver 1.0 2000. 08
SPECIFICATIONS
REMOTE COMMANDER

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Summary of Contents for Sony RM-VZ950T

  • Page 1 RM-VZ950T SERVICE MANUAL AEP Model Ver 1.0 2000. 08 SPECIFICATIONS REMOTE COMMANDER...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Notes on chip component replacement • Never reuse a disconnected chip component. • Notice that the minus side of a tantalum capacitor may be dam- GENERAL aged by heat. Getting Started ..............3 Location of Controls ............4 Basic Operations .............
  • Page 3 SECTION 1 This section is extracted from instruction manual. GENERAL – 3 –...
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  • Page 21: Disassembly

    SECTION 2 DISASSEMBLY • This set can be disassemble in the order shown below. Case (Lower) Remote Control Board Case, Inner Note: Follow the disassembly procedure in the numerical order given. 2-1. CASE (LOWER) 2 two hexagon socket bolts (2.6 × 5) 4 three claws 1 Remote the battery case lid...

  • Page 22: Case, Inner

    2-3. CASE, INNER 2 two screws (P2 × 4) 3 jog board 4 thirty-one switches 1 key, rubber 5 cover, LCD 6 escutcheon, jog Note on mounting the switches 7 Pull out the inner case. 1. Mount each switch, meeting its bosses with respective guides.

  • Page 23: Test Mode

    SECTION 3 TEST MODE [GENERAL] 3. Test item selection display list • Test items The test mode of this set consists of six test items including BATT (1) BATT test selection display: “BATT TEST” is displayed (with test, LCD test, KEY test, LEARN test, MEMORY test, and “BATT”...
  • Page 24 2. LCD test (10) Sixth digit character, vertical one-column dots horizontal LCD display: Explanatory notes scanning check: The display of the fifth digit is cleared, and the similar to (5) check Second Fourth Sixth is made to the 2, 3 line characters on the sixth digit. Proceed to digit digit digit...
  • Page 25 (13) key check: (27) key check: The set waits for the input of key when “push 9 key” is dis- The set waits for the input of key when “push VOL + key” played. When the key is pushed, the set proceeds to (14). is displayed.
  • Page 26 5. MEMORY test (g) Memory check result display • For the EEPROM, the memory occupation display, writing er- “TEST GOOD MEMORY” is displayed on the LCD if ror history display, error test, and data erasing are carried out. the error flag is not present, or “TEST ERROR •...

  • Page 27: Diagrams

    RM-VZ950T SECTION 4 DIAGRAMS 4-1. BLOCK DIAGRAM D3, 4 BUFFER, LED DRIVE REMOTE CONTROL WAVEFORM REMOTE CONTROL SIGNAL TRANSMITTER SHAPING SIGNAL RECEIVER PCNT BUSY FLAG PARALLEL/ SHIFT CHARACTOR DATA SERIAL REGISTER SEGMENT GENERATOR IN/OUT REGISTER CONVERTER & LATCH DRIVER CIRCUIT...

  • Page 28: Printed Wiring Boards

    RM-VZ950T 4-2. PRINTED WIRING BOARDS D5-8 DRY BATTERY SIZE “AA” (IEC DESIGNATION R6) 2PCS. 3V • Semiconductor Location Note on Printed Wiring Boards: • Y : parts extracted from the conductor side. Ref. No. Location Ref. No. Location • : Through hole.

  • Page 29: Schematic Diagram

    RM-VZ950T 4-3. SCHEMATIC DIAGRAM • • See page 33 for Waveforms. See page 34 for IC Block Diagrams. WAVEFORM SHAPING Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF • : internal component. • Voltages and waveforms are dc with respect to ground •...
  • Page 30 • Waveforms – REMOTE CONTROL Board – 1 IC1 yl (X2) 1V/DIV, 50 ns/DIV 3.9 Vp-p 200 ns 2 IC5 4 (LX) 1V/DIV, 5 µs/DIV 4.6 Vp-p 11.4 µ s – 33 –...
  • Page 31 • IC Block Diagrams IC2 NJU6424FG1-T 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 SEG17 SEG16 50BIT PARALLEL/SERIAL SEG15 SHIFT CONVERTER SEG43 SEG14 REGISTER CIRCUIT SEG44...

  • Page 32: 4-4. Ic Pin Function Description

    4-4. IC PIN FUNCTION DESCRIPTION • MAIN BOARD IC1 µPD780058GK-A04-9EU (SYSTEM CONTROLLER) Pin No. Pin Name Description 1 to 3 DB5 to DB7 Two-way data bus with the liquid crystal display driver (IC2) AVSS — Ground terminal (for A/D converter) LPOW Power on/off control signal output for the liquid crystal display driver (IC2) “L”: power on LRST...

  • Page 33: Exploded View

    SECTION 5 EXPLODED VIEW NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they may have some difference from the original are seldom required for routine service. Some one. delay should be anticipated when ordering •...

  • Page 34: Electrical Parts List

    SECTION 6 REMOTE CONTROL ELECTRICAL PARTS LIST NOTE: When indicating parts by reference • Due to standardization, replacements in the • Items marked “*” are not stocked since they number, please include the board. are seldom required for routine service. parts list may be different from the parts speci- fied in the diagrams or the components used Some delay should be anticipated when order-...
  • Page 35 RM-VZ950T REMOTE CONTROL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-845-11 METAL CHIP 100K 1/16W 1-216-845-11 METAL CHIP 100K 1/16W 1-216-134-91 METAL CHIP 1/8W 1-216-134-91 METAL CHIP 1/8W 1-216-811-11 METAL CHIP 1/16W 1-216-810-11 METAL CHIP...

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