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There are currently no product reviews.
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I needed the manual immediately and I got it immediately. I couldn't find this manual anywhere else on the net. The site was easy to traverse, and the price was very reasonable. I'll definitely be back for any future needs.
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I received a good service manual, with good resolution. Improve the instructions for the purchase because they are not well understood.
For the rest, so good.
Thanks Angel.
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Very good documentation for the Grundig 2077 model (as well as similar 800/900/1000 series radios). The first two pages are a summary of reception specifications and output capability. The third page is the tuner dial indicator and dial cord routing diagram. the final ~5 pages are the schematics for the various models (including 2077). The scan quality of the schematics are good, adn can be easily read if zoomed in. The documents are in German, not English as stated. It would have been nice to have the tuning sequence and settings, and some trouble shooting materials... or component and wiring map.
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Perfect like it was descriped, Perfect like it was descriped
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Very good detail, all pages clear, exactly what I needed
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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