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Ottima qualità grafica e completo nelle notizie. Costo abbastanza contenuto.
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Great and quick support. The maual was exactly what I was looking for and my problem
solved. Many thanks.
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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.
Alignment and Adjustments
1-2 Cassette Deck
1-2-1To Adjust Tape Speed
Notes 1) Measuring tape: i) MTT-111 (or equivalent) (Tapes recorded with 3kHz) ii) MTT-5512 (or equivalent) iii) MTT-112B (or equivalent) 2) Connect the cassette deck to the frequency counter as in figure 1-5. Pre-Setup Condition OUT (connected to the frequency counter) as above
Cassette Deck SPK OUT output Figure 1-5 Frequency Counter 1) Before the actual adjustment, clean the play/recording head. 2) Measuring tape : i) MTT-114N(or equivalent 10kHz AZIMUTH control) ii) MTT-5512 3) The cassette deck is connections as shown in figure 1-7.
1-2-4 To Adjust PlayBack Level/REC
Notes
Step
Item
Pre-Setup 1) Deck 1:MTT-111
To Adjust
Standard
Remark
1. Adjust Deck 1 Play Level
Step Item AZIMUTH Pre-Setup Condition SPK OUT (VTVM is connected to the scope) SPK OUT (VTVM is connected to the scope) Pre-Setup After putting MTT114N into Deck 1 - Press FWD PLAY button. After putting MTT112 into Deck 1 - Press FWD PLAY button. To Adjust - Turn the control screw to as shown in Figure 1-6. Standard Max output and same phase (both channels) Remark After adjustment secure it with REGION LOCK.
1
NOR SPEED Control
2) Press PLAY SW button 3) Deck 2:Same
Turn USR1 to left and right (FRONT PCB)
3KHz
±1% range
1
1-2-2. Adjust REC Bias Voltage
2 Step Item REC Bias Voltage Pre-Setup Condition Connect to JCW3 as in Fig.1-8 and read the VTVM. Pre-Setup Input MTT-5512 into Deck2,then press REC button. Step To Adjust Turn JL1 to the right and left.
105KHz±0.5KHz
Play back out Level1
- L-CH ; Turn JSR1L - R-CH ; Fixed
Max output and same phase (both channels)
Standard
Remark MAIN PCB
1
2. Adjust Deck 2 Play Level/REC BIAS
Item Pre-Setup Condition SPK OUT AZIMUTH (VTVM is connected to the scope) Pre-Setup After putting MTT114N into Deck 2 1)Press FWD PLAY button.
After putting MTT5512 into Deck 2
To Adjust
Standard
Remark After adjustment secure it with REGION LOCK.
1-2-3. Adjust L,R UNBALANCE
1 Step Item L,R UNBALANCE Pre-Setup Condition Connect to JCW3 as in Fig.1-8 and read the VTVM. Pre-Setup Input MTT-112B into Deck2,then press PLAY button. To Adjust Turn JSR2R to the right and left. Standard Remark MAIN PCB 2 Recording Bias Voltage
- Turn the control screw to as shown in Figure 1-6.
Max output and same phase (both channels)
1
±0.5dB
Fig 1-8
1)Press REC PLAY button. 2)MAIN PCB JCW3, connectted to VTVM SET (MAIN PCB)
LINE OUT IN TP JCW3
Turn JSR2L,JSR2R to the right and left
7mV(±0.5mV)
Recording /Play head Cassette Deck
SPK OUT
VTVM
Oscilloscope
Audio OSC.
VTVM
Oscilloscope
(GND)
In Out Figure 1-7
AUX IN
IN OUT
AZIMUTH control screw Figure 1-6
Figure 1-8 Samsung Electronics
1-2
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