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Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
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Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
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some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
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Well.. I'd searched for this manual and although I found many copies online I was pleased to find your website with a well balanced pricing system and easy to search and follow links. That together with the very quick response time was just what I was looking for.. being a very impatient tech.. ;-) I had the service manual in front of me within a short time.
Bookmarked.. and you can bet I will always come here first for my service & user manuals..
best regards
Ed(Tony) Foley
G7WHK
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I will definitely be back for more information when I need it.
ELECTRICAL ADJUSTMENTS
2-6: VERTICAL POSITION (RF) 1. Receive the monoscope pattern. 2. Using the remote control, set the brightness and contrast to normal position. 3. Adjust the VR401 until the horizontal line becomes fit to the notch of the shadow mask. (Refer to Fig. 2-1) horizontal line 2-10: HORIZONTAL PHASE (RF) 1. Receive the center cross signal from the Pattern Generator. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (03) on the remote control to select �H.PHASE�. 4. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on right and 2-11: LEVEL (RF) left becomes minimum.
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Notch
1. Connect the AC voltmeter to pin 6 of CP101. 2. Activate the adjustment mode display of Fig. 1-1 and press the channel button (35) on the remote control to select �LEVEL�. 3. Press the VOL. UP/DOWN button on the remote control until the AC voltmeter is 85 ± 2mV. 2-12: SEPARATION 1, 2 (RF, AV) Please do the method (1) or method (2) adjustment. Method (1) 1. Set the multi-sound signal generator for each different Lch and R-ch frequency (Ex. L-ch=400Hz, R-ch=2KHz) and receive the RF. 2. Connect the oscilloscope to the Audio Out Jack. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (36) on the remote control to select �SEPARATION1�. 4. Press the VOL. UP/DOWN button on the remote control to adjust it until the audio output wave becomes a fine sine wave. 5. Press the CH UP button once the set to �SEPARATION2� mode. Then perform the above adjustment 4. Method (2) 1. Set the multi-sound signal generator L-ch=1KHz, R-ch =Non input and receive the RF. 2. Connect the oscilloscope to the Audio Out Jack (R-ch). 3. Press the AUDIO SELECT button on the remote control to set to the stereo mode. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (36) on the remote control to select �SEPARATION1�. 5. Press the VOL. UP/DOWN button on the remote control to adjust it until the R-ch output becomes minimum. 6. Set the multi-sound signal generator L-ch=Non input, R-ch=1KHz and receive the RF. 7. Connect the oscilloscope to the Audio Out Jack (L-ch). 8. Activate the adjustment mode display of Fig. 1-1 and press the channel button (37) on the remote control to select �SEPARATION2�. 9. Press the VOL. UP/DOWN button on the remote control to adjust it until the L-ch output becomes minimum. The output difference of the between with Filter and without Filter should be more than 25db for both L and R.
Shadow mask Fig. 2-1
2-7: VERTICAL SIZE (RF) 1. Receive the cross hatch signal from the Pattern Generator. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (07) on the remote control to select �V. SIZE�. 4. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on upside and downside becomes 9 ± 2%. 2-8: VERTICAL LINEARITY (RF) NOTE: Adjust after performing adjustments in section 2-7. After the adjustment of Vertical Linearity, reconfirm the Vertical Position and Vertical Size adjustments. 1. Receive the monoscope pattern. 2. Using the remote control, set the brightness, contrast, to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (08) on the remote control to select �V. LINERITY�. 4. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on upside and downside becomes minimum. 2-9: TRAPEZIUM (RF) 1. Receive the cross hatch signal from the Pattern Generator. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (34) on the remote control to select �TRAPEZIUM�. 4. Press the VOL. UP/DOWN button on the remote control until the both vertical lines of the screen become parallel.
D-2
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