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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$
TC-S3
2. Turn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1dB of peak.
Note: Use following buttons in the test mode. no mark : Button of Tape unit (TC-S3) *1 : Button of amplifier unit (TA-S7AV or TA-S3) *2 : Button of CD unit (CDP-S3)
Tape Speed Adjustment
L-CH peak Output level within 1dB within 1dB
DECK B
Note: Start the Tape Speed adjustment as below after setting to the test mode. In the test mode, the tape speed is high during pressing the [HI-DUB] button.
Screw position
R-CH peak L-CH peak R-CH peak
Screw position
Procedure: 1. Turn the power switch on. 2. While pressing the both [PLAY MODE]*2 and [x]*2 buttons, press the [DISC 3]*2 button. (The �GROOVE� on the fluorescent indicator tube display while in the test mode.) To exit from the test mode, press the ?/1 *1 button. Mode: Playback
test tape WS-48B (3 kHz, 0 dB) set STS3/S5/SV7
3. Mode: Playback
test tape P-4-A100 (10 kHz, �10 dB) L-CH set R-CH MD OUT jack (J601) waveform of oscilloscope
STS3/S5/SV7
oscilloscope
frequency counter
+ �
+ �
MD OUT jack (J601)
in phase 45 ° good
90 ° 135 ° 180 ° wrong
4. After the adjustments, apply suitable locking compound to the pats adjusted. Adjustment Location: Playback Head (Deck A). Record/Playback/Erase Head (Deck B).
1. Insert the WS-48B into the deck B. 2. Press the N button on the deck B. 3. Press the [HI-DUB] button in playback mode. Then at HIGH speed mode. 4. Adjust RV1001 on the LEAF SW board so that frequency counter reads 6,000 ± 30 Hz. 5. Press the [HI-DUB] button. Then back to NORMAL speed mode. 6. Adjust RV1002 on the LEAF SW board so that frequency counter reads 3,000 ± 15 Hz. Adjustment Location: LEAF SW board Playback level Adjustment Procedure: Mode: Playback
test tape P-4-L300J (315 Hz, 0 dB) set STS3/S5/SV7
DECK A
DECK B
forward
level meter
+ �
MD OUT jack (J601)
reverse
1. Confirm that level difference between the channels is with ± 0.5 dB. 2. After check, adjust the following RVs. Deck A is RV302 (L-CH), Deck B is RV303 (L-CH) so that adjustment within adjustment level as follows. Adjustment Level: MD OUT jack (J601) PB level: 334.4 to 748.7 mV (�6.8 ± 0.5 dB) Adjustment Location: MAIN board Sample Volue of Wow and Flutter: 0.3% or less W. RMS (WS-48B)
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