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Sanyo SRT-8960P Service Manual
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Sanyo SRT-8960P Service Manual

Sanyo SRT-8960P Service Manual

Real time video cassette recorder
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Download this manual See also: Instruction Manual
SERVICE MANUAL
Real Time Video Cassette Recorder
CONTENTS
1. DISASSEMBLY .................................................................... 6
2. ELECTRICAL ADJUSTMENT ............................................ 10
ACCESSORIES & PACKING MATERIALS ........................ 13
CABINET & CHASSIS PARTS ........................................... 13
MECHANISM PARTS ......................................................... 14
ELECTRICAL PARTS ........................................................ 16
CIRCUIT DIAGRAM & PRINTED WIRING BOARDS ............. C1
significance to product safety. Should any component designated by a symbol need to be replaced, use only the part designated
in the parts List. Do not deviate from the resistance, wattage, and voltage ratings shown.
NOTE: 1. Parts order must contain model number, part number, and description.
2. Substitute parts may be supplied as the service parts.
3. N.S.P. : Not available as service parts.
Design and specifications are subject to change without notice.
RQ4QR/EX, E, EX2, E2
PRODUCT SAFETY NOTICE
) in this schematic diagram designates components whose value are of special
FILE NO.
SRT-8960P
(Product Code : 175 700 72)
(Europe)
SRT-8960P
(Product Code : 175 700 88)
(U.K.)
SRT-8040P
(Product Code : 175 700 73)
(Europe)
SRT-8040P
(Product Code : 175 700 89)
(U.K.)
Please see other materials with Reference
number given in table below.
Materials
Reference No.
Model No.
Mechanism
VP-R/VP-N
MM5310380
Manual
Mechanism
REFERENCE No.SM5310422

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Summary of Contents for Sanyo SRT-8960P

  • Page 1: Table Of Contents

    FILE NO. SERVICE MANUAL SRT-8960P Real Time Video Cassette Recorder (Product Code : 175 700 72) (Europe) SRT-8960P (Product Code : 175 700 88) (U.K.) SRT-8040P (Product Code : 175 700 73) (Europe) SRT-8040P (Product Code : 175 700 89) (U.K.)

  • Page 2: Maintenance Table On The Monitor Screen

    MAINTENANCE TABLE ON THE MONITOR SCREEN To display the maintenance table, press “MENU” key with “ ” key while the fourth MENU <POWER FAILURE> is displayed. Press “MENU” key with “ ” key POWER FAILURE Maintenance table 1 “MENU” key “MENU”...
  • Page 3 Error Codes (Self-Diagnosis Contents) Mechanism Operations and State After Occurrence Problem The cylinder does not rotate. Shift to the STOP mode. The tape winds around the cylinder. Unload forcibly. Shift to the STOP mode. The take-up reel does not rotate. Shift to the STOP mode.
  • Page 4 Maintenance Table : Cleaning : Confirmation : Lubrication : Exchange 2000H 4000H 8000H Notes 6000H ASSY, BRAKE BAND ASSY, LEVER BT (tape guide) FULL ERASE HEAD ASSY, ROLLER CLEANER ASSY, GUIDE ROLLER ASSY, MOUNTING INCLNE S ASSY, MOUNTING INCLNE T Tape path ACE HEAD system...

  • Page 5: Disassembly

    1. DISASSEMBLY 1-1. REMOVAL OF CABINET, MECHANISM UNIT, AND MAIN BOARD REMOVING THE MECHANISM MAIN UNIT AND THE REMOVING THE CABINET PARTS (Fig. 1-1-1) CP-1 PWB ASSEMBLY (Fig. 1-1-2 and 1-1-3) Remove the cabinet and bottom cover by removing the Spread out the lock clamps (B) and (C) in the arrow four screws (1) and five screws (2).
  • Page 6 M-RQ4Q/EX-2 Terminal Board Tray Lock Lever Holder Lid Opener Lever Chassis ( B ) ( B ) ( B ) ( B ) ( B ) ( B ) ( B ) ( C ) TM - 1 PWB ( C ) PW - 1 PWB ( C ) Cassette Tray...
  • Page 7 1-2. TEMPORARILY SETTING UP AND CONNECTING CP-1 PWB ASSEMBLY The following is an example of how to place and connect the main board without a jig, when repairing the CP-1 PWB assembly. Place the mechanism unit and main board up side down as Operete the unit using the buttons on CP-1 PWB or the remote control.
  • Page 8 1-4. CIRCUIT BOARD LOCATIONS L-RQ4Q/EX TB - 1 PWB for TLS-1960P SRT-8960P CP - 1 PWB Assembly PW-2 PWB for TLS-1960P SRT-8960P TM - 1 PWB PW-1 PWB TM - 2 PWB – 9 –...

  • Page 9: Electrical Adjustment

    2. ELECTRICAL ADJUSTMENT 2-1. SERVO CIRCUIT ADJUSTMENT • These adjustments should be carried out upon completion of the tape transport adjustments. • If the tape transport adjustments (except the tilt adjustment) are done after these adjustments, follow the procedures again in section 2-1-3.
  • Page 10 2-1-4. 24H PLAY TRACKING CONFIRM AND ADJ. Notes : • Set the REC/PLAY SPEED button to indicator panel to the 8 H (8 hours) mode. Measuring Point Measuring Equipment Adj. Condition • Self-recoding means “Record any broadcasting or video Picture of Color bar generator Self-recording signal and play back the just-recorded portion”.

  • Page 11: Test Points For Tape Path Adjustment

    2-2. VIDEO CIRCUIT ADJUSTMENT Before making the following adjustments, complete the adjustments described in section 2-1. “Servo Circuit.” 2-2-1. TEST EQUIPMENT AND STANDARDS REQUIRED Color Bar Signal Generator PAL color bar signal with 100% white level, monoscope signal Vertical sensitivity : 5 mV/DIV, external trigger Oscilloscope Bandwidth...

  • Page 12: Parts List

    4. PARTS LIST Destination SRT-8960P : SRT-8960P (Europe) SRT-8960P-UK : SRT-8960P (U.K.) SRT-8040P : SRT-8040P (Europe) SRT-8040P-UK : SRT-8040P (U.K.) LOCATION PARTS NO. DESCRIPTION LOCATION PARTS NO. DESCRIPTION 613 198 0341 ASSY,CABINET FRONT SJC ACCESSORIES & PACKING MATERIALS 613 198 0372...

  • Page 13: Mechanism Parts 1

    LOCATION PARTS NO. DESCRIPTION LOCATION PARTS NO. DESCRIPTION 20110 412 015 8603 SPECIAL WASHER 3.1X6X0.25 MECHANISM PARTS 1 20200 613 160 4193 ASSY,REEL TAKE UP 11000 613 199 0982 COMPL,CYLINDER,2N4P-QL 613 168 1514 ASSY,REEL TAKE UP 11100 613 196 4648 ASSY,CYLINDER,LWR,4Q 20210 412 021 5306...
  • Page 14 LOCATION PARTS NO. DESCRIPTION LOCATION PARTS NO. DESCRIPTION 50700 613 175 6472 ASSY,LEVER,LOAD TL 10700 613 167 5926 MOUNTING CAPSTAN 50800 613 152 0387 SPRING,LEVER L GUIDE 10720 412 048 8007 SPECIAL SCREW-2.6X6 50900 412 048 8908 SPECIAL NUT-3X3 20500 613 183 4361 ASSY,GEAR,FRICTION 51000...

  • Page 15: Electrical Parts

    LOCATION PARTS NO. DESCRIPTION Q1123 405 014 4400 TR 2SC2412K-Q COMPL PWB,CP-1-A 405 014 4509 TR 2SC2412K-R 613 197 9413 SRT-8960P,SRT-8960P-UK 405 014 4608 TR 2SC2412K-S 613 198 3953 SRT-8040P,SRT-8040P-UK Q1124 405 014 4400 TR 2SC2412K-Q 405 014 4509 TR 2SC2412K-R...
  • Page 16 LOCATION PARTS NO. DESCRIPTION LOCATION PARTS NO. DESCRIPTION Q1301 405 002 0308 TR 2SA1037K-R Q1603 405 014 4509 TR 2SC2412K-R 405 002 0407 TR 2SA1037K-S 405 014 4608 TR 2SC2412K-S Q1306 405 014 4400 TR 2SC2412K-Q Q1610 405 138 6700 TR DTC144EKA 405 014 4509 TR 2SC2412K-R...
  • Page 17 645 002 1442 INDUCTOR,18U J D2201 407 012 4406 DIODE 1SS133 645 003 7986 INDUCTOR,18U J D3001 407 150 7703 DIODE RB441Q,SRT-8960P,SRT-8960P-UK L1403 645 006 3886 INDUCTOR,1U K D3002 407 120 5807 DIODE AK04 645 005 3856 INDUCTOR,1U M 407 160 9100...
  • Page 18 LOCATION PARTS NO. DESCRIPTION LOCATION PARTS NO. DESCRIPTION C1010 403 191 8709 ELECT 1U M 50V C1307 403 215 2201 CERAMIC 0.01U K 50V C1011 403 164 0204 CERAMIC 0.1U Z 25V C1308 403 163 7907 ELECT 47U M 6.3V C1012 403 193 9001 ELECT 3.3U M 50V...
  • Page 19 LOCATION PARTS NO. DESCRIPTION LOCATION PARTS NO. DESCRIPTION C1851 403 164 0204 CERAMIC 0.1U Z 25V C3041 403 121 2401 ELECT 22U M 16V C1852 403 157 2505 CERAMIC 27P J 50V C3043 403 164 0204 CERAMIC 0.1U Z 25V C1853 403 157 2505 CERAMIC...
  • Page 20 LOCATION PARTS NO. DESCRIPTION LOCATION PARTS NO. DESCRIPTION R1084 401 105 5400 MT-GLAZE 47K JA 1/16W R1343 401 105 5400 MT-GLAZE 47K JA 1/16W R1085 401 105 8203 MT-GLAZE 68K JA 1/16W R1344 401 105 1006 MT-GLAZE 1.2K JA 1/16W R1086 401 105 4007 MT-GLAZE...
  • Page 21 1K JA 1/16W R3178 401 105 0504 MT-GLAZE 1K JA 1/16W, R3065 401 105 0603 MT-GLAZE 10K JA 1/16W SRT-8960P,SRT-8960P-UK R3066 401 105 3000 MT-GLAZE 220K JA 1/16W (JUMPERS) R3067 401 105 0603 MT-GLAZE 10K JA 1/16W 401 105 7909 MT-GLAZE 0.000 ZA 1/16W...
  • Page 22 SWITCH,PUSH 1P-1T, CT. RESET 407 012 4406 DIODE 1SS133,SRT-8040P,SRT-8040P-UK 645 011 5172 SWITCH,PUSH 1P-1T, CT. RESET D7135 407 007 9904 DIODE GMA01,SRT-8960P,SRT-8960P-UK 645 011 5165 SWITCH,PUSH 1P-1T, CT. RESET 407 012 4406 DIODE 1SS133,SRT-8960P,SRT-8960P-UK S7110 645 006 2797 SWITCH,PUSH 1P-1T, SECURITY LOCK...
  • Page 23 DIODE AG01 PR512 645 005 9834 PROTECTOR,IC 1.0A 50V D5108 407 063 8507 ZENER DIODE MTZJ4.7C (CONNECTORS) D5109 407 078 2705 DIODE 1SS244,SRT-8960P,SRT-8960P-UK CN501 645 008 7691 SOCKET,INLET AC D5110 407 099 5501 ZENER DIODE MTZJ6.2C CN511 645 005 8172 PLUG,15P (N.S.P)
  • Page 24 POLYESTER 0.1U K 50V, 405 013 7303 TR 2SC2274K-F,SRT-8960P,SRT-8960P-UK SRT-8960P,SRT-8960P-UK Q5454 405 013 6801 TR 2SC2274-E,SRT-8960P,SRT-8960P-UK C5451 403 301 1408 ELECT 100U M 50V,SRT-8960P,SRT-8960P-UK 405 013 7006 TR 2SC2274-F,SRT-8960P,SRT-8960P-UK C5452 403 358 7606 ELECT 470U M 35V,SRT-8960P,SRT-8960P-UK 405 013 7204 TR 2SC2274K-E,SRT-8960P,SRT-8960P-UK C5454...
  • Page 25 401 105 0702 MT-GLAZE 100K JA 1/16W, SRT-8960P,SRT-8960P-UK SRT-8960P,SRT-8960P-UK (FUSE) R5463 401 105 2904 MT-GLAZE 22K JA 1/16W, F5450 423 028 8702 FUSE 250V 5A,SRT-8960P, SRT-8960P,SRT-8960P-UK SRT-8960P-UK R5464 401 105 5905 MT-GLAZE 560 JA 1/16W, (PROTECTORS) SRT-8960P,SRT-8960P-UK PR545 645 043 5461 PROTECTOR,1.25A 125V,...

  • Page 26: Circuit Diagram & Printed Wiring Boards

    SERVO CIRCUIT WAVEFORMS ........................C10 DISPLAY (FLD) GRID/ANODE ASSIGNMENT DRAWING & TABLE ............C10 TM-1, TM-2 & TB-1 BOARDS DISPLAY, KEY SCAN & DC INPUT (TB-1 BOARD: SRT-8960P ONLY) ..C11 PW-1 BOARD POWER SUPPLY ........................C12 PW-2 BOARD POWER SUPPLY (SRT-8960P ONLY) ................. C13 PRINTED WIRING BOARDS (P.W.B.)

  • Page 27: The Components Designated By A Symbol

    NOTES: 1. All resistance values in "OHMS" unless otherwise noted. (K=1,000 ; M=1,000,000) µ 2. All capacitance values in " F" unless otherwise noted. µ p=pico farad ; ,u or U=micro farad µ 3. All inductance values in " H" unless otherwise noted. µ...

  • Page 28: Overall Wiring, Mechanism Connection & Block Diagrams

    OVERALL WIRING, MECHANISM CONNECTION & BLOCK DIAGRAMS OVERALL WIRING NOTES: : Common parts for SRT-8960P and SRT-8040P. The parts marked are SRT-8960P.

  • Page 29: Mechanism Connection

    MECHANISM CONNECTION AUDIO CIRCUIT...

  • Page 30: Video Circuit

    VIDEO CIRCUIT...

  • Page 31: System Control & Servo Circuit

    SYSTEM CONTROL & SERVO CIRCUIT...

  • Page 32: Circuit Diagrams

    CIRCUIT DIAGRAMS CP-1 BOARD (VA-A) VIDEO & AUDIO...

  • Page 33: Video Circuit Waveforms

    VIDEO CIRCUIT WAVEFORMS IC301 SYSTEM CONTROL, TIMER, OSC & SERVO MPU PIN FUNCTIONS TABLE / I O TEST POINT LOCATION WAVEFORM TEST POINT LOCATION WAVEFORM e l i , l l i IC101 PIN17 IC101 PIN43,45 PLAY REC/PLAY l l o e l l 100mV/500ns/div 100mV/20µs/div...

  • Page 34: Board (Sy-A) System Control & Servo

    CP-1 BOARD (SY-A) SYSTEM CONTROL & SERVO NOTES: : Common parts for SRT-8960P and SRT-8040P. The parts marked are SRT-8960P. The parts marked are SRT-8040P.

  • Page 35: Servo Circuit Waveforms

    SERVO CIRCUIT WAVEFORMS DISPLAY (FLD) GRID/ANODE ASSIGNMENT DRAWING & TABLE TEST POINT TEST POINT WAVEFORM WAVEFORM LOCATION LOCATION IC301 IC301 PIN 9,10 PIN 98, 99 2V/div. 2V/div. 20µs/div. 500ms/div. IC301 IC304 PIN 85 UP : PIN 23 LOW :PIN 18 2V/div.

  • Page 36: Tb-1 Boards Display, Key Scan & Dc Input (Tb-1 Board: Srt-8960P Only)

    TM-1, TM-2 & TB-1 BOARDS DISPLAY, KEY SCAN & DC INPUT (TB-1 BOARD : SRT-8960P ONLY) NOTES: : Common parts for SRT-8960P and SRT-8040P. The parts marked are SRT-8960P. The parts marked are SRT-8040P.

  • Page 37: Board Power Supply

    PW-1 BOARD POWER SUPPLY NOTES: : Common parts for SRT-8960P and SRT-8040P. The parts marked are SRT-8960P.

  • Page 38: Board Power Supply (Srt-8960P Only)

    PW-2 BOARD POWER SUPPLY (SRT-8960P ONLY)

  • Page 39: Printed Wiring Boards (P.w.b.)

    PRINTED WIRING BOARDS (P.W.B.) CP-1 P.W.B.
  • Page 40 CP-1 P.W.B. [LEFT]...
  • Page 41 CP-1 P.W.B. [RIGHT]...

  • Page 42: P.w.b

    TM-1 P.W.B. TM-2 P.W.B. TB-1 P.W.B. (SRT-8960P ONLY)

  • Page 43: P.w.b

    PW-1 P.W.B. PW-2 P.W.B. (SRT-8960P ONLY)
  • Page 44 SANYO Electric Co., Ltd. Osaka, Japan Jun./’02 Printed in Japan...

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Srt-8040p

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