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Very good reproduction (copy) of original manual. Didn't have a parts list, but schematic was completely labeled with parts. Complete instructions on how to adjust mechanical functions of the 8-track deck. Well worth having and at a very reasonable cost.
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It's a full manual. All the parts are in there. I haven't found the problem yett, but I am working on it; hope I can rebuild the part myself. To make it more secure and unbreakable this time. Because the part has failed several times before and costs a lot to let it be repaired.
Thanks so much for this rich illustrated and parted manual.
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I downloaded the document. The manual was complete, well scanned and everything was legible. I could zoom in see what I needed to know. There's not much more that you can ask.
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It was complete service manual with all needed service informations. Thanks.
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El manual esta muy detallado, los numeros de partes y los esquemas de despiece son correctísimos y muy claros, tanto para los técnicos experimentados como para los novatos.
SECTION 4 ELECTRICAL ADJUSTMENTS
Notes: 1. These adjustments are performed in the order that they are described. 2. Adjustment and measurement are performed for each channel unless otherwise specified. 3. Adjustment is made for the right channel first and then the left channel. 4. The power voltage is supplied with 9 V. Oscillation Frequency Adjustment Setting:
digital frequency counter
Adjustment Location:
� TX board (side A) �
TP (A MUTE)
LED board TP03 or TP04 (L-ch) TP05 or TP06 (R-ch)
+ �
Adjustment method: � Perform this adjustment without signal. 1. Connect TP (A MUTE) to ground on the TX board (to set the mute state), or use the test mode to set the mute state (see page 7). 2. Connect a digital frequency counter to TP03 or TP04 for L-ch and TP05 or TP06 for R-ch on the LED board. 3. Adjust L51 (L-ch) and L1 (R-ch) on the TX board so that the reading on the digital frequency counter is each within 2.3 MHz (L-ch) and 2.8 MHz (R-ch). Specified value: L-ch R-ch
� LED board (conductor side) �
TP05 TP06
L51 L1
2.298 to 2.302 MHz 2.798 to 2.802 MHz
RF Level Adjustment Setting:
digital voltmeter TP03 LED board TP03 or TP04 (L-ch) TP05 or TP06 (R-ch) + � TP04
Adjustment method: � Perform this adjustment without signal. 1. Connect TP L (L-ch) and TP R (R-ch) to ground on the LED board (to set the mute state), or use the test mode to set the mute state (see page 7). 2. Connect a digital voltmeter to TP03 or TP04 for L-ch and TP05 or TP06 for R-ch on the LED board. 3. Adjust RV51 (L-ch) and RV1 (R-ch) on the TX board so that the reading on the digital voltmeter is 480 mV. Specified value: L-ch R-ch
� TX board (side A) �
RV51
RF LEVEL ADJUSTMENT
RV51 RV1
477.5 to 482.5 mV 477.5 to 482.5 mV
RV1 L51 L1 OSCILLATION FREQUENCY ADJUSTMENT
�8�
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