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let's say first that i do not need to have a credit for my opinion, i am a retired sparkie and i voluteerd to fix an electronic device for a local "Youthgroup",as no diagram was present i checked the "net" and gambled on this site and paying some fee via PayPall, i was gladly surprised that the manual arrived as was stated, GOOD SHOW, and best wishes, John
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I had been looking for a Manual for my CS2150 for quite a while -- in fact I had just about given up. I saw this site and decided to download the Manual. When I Received it by Email I was really pleased with what I got, with the result that My Kenwood 'Scope is now 100% repaired and working well. As an AV Serviceman, you need a good 'scope, and thanks to this site, and the Service Manual, I have been able to repair it. The Manual was a copy of the Factory Original and the copy was very clear, especially in the area of the Circuit Schematics, where You really need to be sure of what You are looking at.
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Once again, excellent price and manual delivered in a timely manner and as advertised!
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Outstanding quality manual. This is the exact documentation I needed to service my AKAI GX-210D. This is a PERFECT COPY of the service manual for my machine. Outstanding service. Thank-you!
Alignment and Adjustments
2 Cassette Deck
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.
Cassette Deck SPK OUT output Figure 1-5 Frequency Counter
2-4 To Adjust PlayBack Level/REC
Notes 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. Remark
Step
Item
Pre-Setup Condition OUT (connected to the frequency counter)
Pre-Setup 1) Deck 1:MTT-111 2) Press PLAY SW button 3) Deck 2:Same as above
To Adjust
Standard
1. Adjust Deck 1 Play Level
Step Item Pre-Setup Condition SPK OUT (VTVM is connected to the scope) Pre-Setup After putting MTT114N into Deck 1 - Press FWD PLAY button. AZIMUTH To Adjust - Turn the control screw to as shown in Figure 1-6. Standard Remark
1
NOR SPEED Control
Turn CSVR1 toleft and right (MAIN PCB)
3KHz±30Hz
±1% range
1
Max output and same phase (both channels)
After adjustment secure it with REGION LOCK.
2-2. Adjust REC Bias Voltage
Step Item REC Bias Voltage Pre-Setup Condition Connect to DCW3 as in Fig.1-8 and read the VTVM. Pre-Setup Input MTT-5512 into Deck2,then press REC button. 1 AZIMUTH To Adjust Turn DL4 to the right and left. Standard Remark MAIN PCB
2. Adjust Deck 2 Play Level/REC BIAS
Step Item Pre-Setup Condition SPK OUT (VTVM is connected to the scope) Pre-Setup After putting MTT114N into Deck 2 1)Press FWD PLAY button. To Adjust - Turn the control screw to as shown in Figure 1-6. Standard Remark
1
105KHz±0.5KHz
Max output and same phase (both channels)
After adjustment secure it with REGION LOCK.
2-3. Adjust L,R UNBALANCE
Step Item L,R UNBALANCE Pre-Setup Condition Connect to DCW3 as in Fig.1-8 and read the VTVM.
Pre-Setup Input MTT-112B into Deck2,then press PLAY button.
To Adjust Turn DSVR3 to the right and left.
Standard
Remark MAIN PCB 2 Recording Bias Voltage Fig 1-8
After putting MTT5512 into Deck 2 1)Press REC PLAY button. 2)MAIN PCB DCW3, connectted to VTVM SET (MAIN PCB) Audio OSC.
LINE OUT IN TP DCW3
Turn DSVR1,DSVR2 to the right and left
6V(±0.5V)
1
±0.5dB
Recording /Play head Cassette Deck
SPK OUT
VTVM
Oscilloscope
VTVM
Oscilloscope
(GND)
In Out Figure 1-7
AUX IN
AZIMUTH control screw Figure 1-6
IN OUT
Figure 1-8 Samsung Electronics
2
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