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There are currently no product reviews.
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The manual was very accurate for the part that I was changing, I was able to order the correct part and had no issues with the replacement procedure. However, I was expecting to have more detailed repairs for the lower drive unit.
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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
Alignment and Adjustment
a. ACE HEAD HEIGHT ADJUSTMENT 1) Run the alignment tape (Color bar) in the playback mode. 2) Observe surface of the audio head using a dental mirror. 3) Turn screw (C) clockwise or counterclockwise until the gap of lower tape edge and the lower edge of the control head is about 0.25mm. (Refer to Fig. 5-6 and 5-7)
b. ACE HEAD TILT ADJUSTMENT 1) Playback a blank tape and observe the position of the tape at the lower flange of tape guide. 2) Confirm that there is no curl or wrinkle at the lower flange of tape guide as shown in Fig. 5-8 (B). 3) If a curl or wrinkle of the tape occurrs, slightly turn the screw (A) tilt adjust on the ACE head ass�y. 4) Reconfirm the ACE head height.
(A) (B)
SCREW (A) TLIT ADJUST
SCREW (C) HEIGHT ADJUST WRINKLE
X-POSITION ADJUSTING SLIT SCREW (B) AZIMUTH ADJUST
SCREW (D) X-POSITION LOCKING
(BAD)
(GOOD)
Fig. 5-6 Location of ACE Head Adjustment Screw
Fig. 5-8 Tape Guide Check c. AUDIO AZIMUTH ADJUSTMENT
AUDIO HEAD VIDEO HEAD
0 ~ 0 .25 mm CONTROL HEAD
1) Load alignment tape (Mono scope) and playback the 6KHz signal. 2) Connect channel-1 scope probe to audio output test point (TP302). 3) Adjust screw (B) to achieve maximum audio level. (See Fig. 5-6) d. ACE HEAD POSITION (X-POINT) ADJUSTMENT
Fig. 5-7 ACE Head Height Adjustment
1) Playback the alignment tape (Color bar). 2) Press the �SW703� button on Main PCB to set the adjustment mode. (See Fig. 5-2) 3) Press the �5� button of remote control then adjustment is operated automatically. (See Fig. 5-1) 4) Connect the CH-1 probe to TP303 (Envelope) the CH-2 probe to TP601 (H�D switching pulse) and then trigger to CH-1. 5) Insert the (-) driver into the X-Point adjustment hole and adjust it so that envelope waveform is maximum. 6) Turn the Power off.
Toshiba
5-5
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