DOWNLOAD Sharp 37DT-25H (serv.man17) Service Manual ↓ Size: 17.01 KB | Pages: 2 in PDF or view online for FREE

Model
37DT-25H (serv.man17)
Pages
2 Few pages! See other manuals at the bottom of the first or last page.
Size
17.01 KB
Type
PDF
Document
Service Manual / Technical Bulletin
Brand
Device
TV / CTR / Countermeasure to cure popping from the loudspeaker during switch on
File
37dt-25h-sm17.pdf
Date
PREV: Sharp 37DT-25H (serv.man16) Service Manual / Technical Bulletin

Sharp 37DT-25H (serv.man17) Service Manual / Technical Bulletin ▷ View online

Sharp Electronics (UK) Limited
Originator AvW   Supervisor                        Approval Date    /   /     Reference UK82500X
White – Carry out as required, Yellow – Carry out as required and whenever the unit comes in for service, Red – Carry out on all units
CTV980807
Month of Issue: August 1998
        Classification:              White
TELEVISION TECHNICAL BULLETIN
Page 1 of 2
MODELS
51DT25H
37DM23H
37DT25H
SYMPTOM Counter measure to stop 'popping' from the loudspeaker at switch on.
CAUSE
Timing of muting circuit too slow.
ACTION
Check that the chassis version is N6.  If it is then procede as follows.
1. Remove 
C308.
2. Remove 
D301.
3. 
Change R316 to a 33k resistor (was 10k).
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
R316
Resistor 33k, 1/8W
VRD-RA2BE333J
AA
                                                                                                                   To  R306
                                                                                                                               C302
                                                                                                                                   Q305
                                                                                      R316
                                                                                                              R317
                                                                                                                                      R318
                  To Q501/Q1007
Circuit Diagram after modification
Sharp Electronics (UK) Limited
Originator AvW   Supervisor                        Approval Date    /   /     Reference UK82500X
White – Carry out as required, Yellow – Carry out as required and whenever the unit comes in for service, Red – Carry out on all units
CTV980807
Month of Issue: August 1998
        Classification:              White
TELEVISION TECHNICAL BULLETIN
Page 2 of 2
Location of C308 on a version 6 Chassis
F7213BMN6
C308
D301
R316
T601
S701
IC1001
TU201
PWB-B
Display

Sharp 37DT-25H (serv.man17) Service Manual / Technical Bulletin ▷ Download

  • DOWNLOAD Sharp 37DT-25H (serv.man17) Service Manual ↓ Size: 17.01 KB | Pages: 2 in PDF or view online for FREE
  • Here you can View online or download the Service Manual / Technical Bulletin for the Sharp 37DT-25H (serv.man17) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp 37DT-25H (serv.man17) CTR. Information contained in Sharp 37DT-25H (serv.man17) Service Manual / Technical Bulletin (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.

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37DT-25H (serv.man17) Service Manuals

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37DT-25H (serv.man2) Start to Page 15 Service Manual 20 2.36 MB
37DT-25H (serv.man3) Pages 16 to 30 Service Manual 15 1.9 MB
37DT-25H (serv.man4) Pages 31 to 51 Service Manual 21 2.4 MB
37DT-25H (serv.man5) Page 52 to end Service Manual 20 1.73 MB
37DT-25H (serv.man6) Circuit diagrams Service Manual 5 721.67 KB
37DT-25H (serv.man7) PWB layouts Service Manual 4 1.07 MB
37DT-25H (serv.man8) NVM map Service Manual 4 164.43 KB
37DT-25H (serv.man9) Adjustment procedures and child lock release details Service Manual 4 152.7 KB
37DT-25H (serv.man11) User Manual / Operation Manual 28 1007.15 KB
37DT-25H (serv.man10) Parts listing Service Manual / Parts Guide 11 672.14 KB
37DT-25H from the Service Manual / Specification 1 19.82 KB
37DT-25H (serv.man16) Change of power supply opto-coupler. Service Manual / Technical Bulletin 1 61.36 KB
37DT-25H (serv.man31) Details of recall notice made in March 1998 Service Manual / Technical Bulletin 2 47.01 KB
37DT-25H (serv.man30) Jittering teletext Service Manual / Technical Bulletin 1 7.84 KB
37DT-25H (serv.man29) Details of hotel mode operation Service Manual / Technical Bulletin 2 11.9 KB
37DT-25H (serv.man28) Data change when replacing the NVM - OSD shift, language and child lock functions Service Manual / Technical Bulletin 1 8.21 KB
37DT-25H (serv.man27) Common faults on the CA1 Chassis Service Manual / Technical Bulletin 1 7.56 KB
37DT-25H (serv.man26) Fitting instructions for Orion type CRT (circuit changes) Service Manual / Technical Bulletin 1 7.84 KB
37DT-25H (serv.man25) Common faults on the CA1 chassis Service Manual / Technical Bulletin 1 19.8 KB
37DT-25H (serv.man24) Countermeasure for no teletext unless in the mix mode Service Manual / Technical Bulletin 1 42.59 KB
37DT-25H (serv.man23) Countermeasure for set not coming out of standby Service Manual / Technical Bulletin 1 90.98 KB
37DT-25H (serv.man22) Countermeasure for height, tuning or video problems at switch on Service Manual / Technical Bulletin 2 79.59 KB
37DT-25H (serv.man21) Countermeasure for whistling power supply during the standby mode Service Manual / Technical Bulletin 1 33.55 KB
37DT-25H (serv.man20) Countermeasure for intermittent noise from SCART connection during standby Service Manual / Technical Bulletin 2 28.18 KB
37DT-25H (serv.man19) Countermeasure for protection of data loss from the NVM during switch on Service Manual / Technical Bulletin 1 22.84 KB
37DT-25H (serv.man18) Countermeasure for intermittent failure of Q401 and Q801 Service Manual / Technical Bulletin 2 26.03 KB
37DT-25H (serv.man15) No sound or picture. Service Manual / Technical Bulletin 1 34.98 KB
37DT-25H (serv.man14) IC201 mask has been updated from 1Y to 2Y. Service Manual / Technical Bulletin 1 42.08 KB
37DT-25H (serv.man13) Vertical collapse and no data on the I2C bus after one minute. Service Manual / Technical Bulletin 1 40.62 KB
37DT-25H (serv.man12) Power supply runs, but it does not turn on Service Manual / Technical Bulletin 1 11.04 KB
37DT-25H (serv.man32) Packaging Weights Data Regulatory Data 1 4.35 KB

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