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Very good service Within one day i received a pdf of the users manual and electric circuits so I was able to measure the different voltages in the printed circuit and find out the fault Payment was also reliable and easy.Without the manual i could not have repaired.So thanks to "Search for a manual"
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you are doing great job guys.....my father ask me to find out the schematics of Sony KV25R1D to sort out the problem ..(he was electrical technician, and excperianced with TV and simillar stuff). finally he found the cause and change all necessary parts....now he has got working old dog..and is very happy!!... thank you all.. NB..he also saved the repair cost.
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Perfect. Received my manual within 24 hours. Clear scan of the manual I needed. No problem.
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Item as described, very well detailed manual with complete schematics. I've received the download information shortly after payment, very good support.
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Really good and well scanned. File is complete the full service manual for 5$
ADJUSTMENT
A MAIN C.B
PRACTICAL SERVICE FIGURE
<TUNER SECTION>
<FM SECTION> Sensitivity : (IHF, THD 3%)
VR1
<TAPE SECTION>
3000Hz ± 60Hz Less than 0.50% (RMS) 35 ~ 50 g-cm (FWD, REV) More than 36 g-cm 60 ~ 170 g-cm 3 ± 1.5 g-cm (FWD, REV) More than 43dB (PB, DC) Less than 3% (PB, DC) Except YZ1: Less than 7.0mV (PB, DC, VOL MAX) YZ1: Less than 4.0mV (PB, DC, VOL MAX) 63Hz + 2/-4dB ~ 8kHz + 3/-4dB TTA� 100 TTA� 210 TTA� 320 (120µ) TTA� 330
VOLUME
L104
IC1
PVC1 L102 TC101 TC104 TC102 L103 TC103
2 3 2
Tape speed : Wow & flutter : Take-up torque : Signal to noise ratio : F.F torque : Rew torque : Distortion : Less than 3%[at 98MHz] Back tension : Intermediate frequency : 10.7MHz ± 0.1MHz S/N ratio : FM stereo separation : More than 16dB[at 98.0MHz] Distortion : Noise level : <AM SECTION> Sensitivity : (S/N 10dB) Less than 58dB [at 600/1000kHz] Frequency response : Less than 56dB[at 1400kHz] Test tape : Signal to noise ratio : More than 28dB[at 600kHz] Less than 17dB[at 88/98MHz] Less than 18dB[at 108MHz] More than 50dB [at 88/98/108MHz] More than 29dB [at 1000/1400kHz] Distortion : Less than 5%[at 1000kHz] Intermediate frequency : 455kHz ± 3kHz
SFR 1
L105 PHONES J1
IC BLOCK DIADRAM
6
1
5 3
4
67
IC, LAG668FT2
L101 BAR ANT
<TUNER SECTION>
1. AM IF Adjustment L105 ....................................................................... 455kHz 2. AM Frequency range Adjustment L104 ..................................................... 515 ± 5kHz<YZ1> L104 ........................................ 517 ± 5kHz<YU,YL,YL1> TC104 .............................................. 1670 ± 10kHz<YZ1> TC104 ................................. 1775 ± 10kHz<YU,YL,YL1> 3 AM Tracking Adjustment L101 ....................................................................... 600kHz TC101 .................................................................. 1400kHz
<TAPE PLAYER SECTION>
6. Tape Speed Adjustment Settings : � Test tape : TTA�100 (TAPE CENTRE) � Test point : PHONES JACK (J1) � Volume : NON-CLIP (MAX-10dB) � Tape/Radio : TAPE � Tape select : NORM � Adjustment location : SFR1 Method : Play back the test tape and adjust for 3000Hz ± 15Hz.
4. FM Frequency range Adjustment L103 ................................. 87.0 ± 0.1MHz <YU,YL,YL1> L103 ............................................. 87.4 ± 0.1 MHz <YZ1> TC103 ............................ 109.0 ± 0.1MHz <YU,YL,YL1> TC103 ......................................... 108.3 ± 0.1MHz <YZ1> 5. FM Tracking Adjustment L102 .................................................................... 88.0MHz TC102 ............................................................... 108.0MHz
7. Head Azimuth Adjustment settings : � Test tape : TTA�330 � Test point : PHONES JACK (J1) � Volume : MAX � Tape/Radio : TAPE � Tape select : NORM � Adjustment location : Head azimuth adjustment screw Method : Play back the 8kHz signal of the test tape and adjust so that the output becomes maximum.
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