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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.
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The service manual when downloaded and printed out was clear and easy to read. I would have liked to have been able to enlarge some details, but this was not possible as the file permissions did not allow this. The service was very good. The time taken from placing my order to downloading the document was only a few minutes.
CRT CUT-OFF, BACKGROUND AND SUB-CONTRAST NTSC CHROMA ADJUSTMENT
BUS CONAV in. 4 Max 1. Receive the "Monoscope Pattern" signal.
SAME LEVEL
(Continued) No. point Adjusting procedure/conditions Waveform and others
No. point Adjusting procedure/conditions Waveform and others 2 1 SUB-TINT (I C 1. Receive the "NTSC 3.58 Colour Bar" signal thru
beam check Press R/C set Picture NORMAL condition. TROL) 2. Connect the oscilloscope to TP47B (P882 pin 5)
3. Connect the DC miliammeter between TP603 (+) BLUE-OUT.
4. Beam current must be within 800 ± 100 µA.(14") 3. Call the "SUB-TINT" mode in service mode. Adjust "SUB-TINT" bus data to obtain the wave4. Clear the SERVICE mode.
& TP602 (�). » Range : 100mV/div. (AC)(Use Probe 10:1) (Full Scale: 3 mA Range) » Sweep time : 10 µsec/div.
HORIZONTAL AND VERTICAL DEFLECTION LOOP ADJUSTMENT form shown as Fig. 1-1.
No. point Adjusting procedure/conditions Waveform and others
W Y Cy G Mg R B
Fig. 1-1
2
1 V-SLOPE (I C 1. Receive Monoscope Pattern Signal.
BUS CON2. Call the "V-LIN" mode. TROL) 3. Increase or decrease "V-LIN" by Volume key till
PROTECTOR OPERATION CHECKING horizontal line in the center of monoscope is
just at position where the blanking starts. No. point Adjusting procedure/conditions Waveform and others
2 V-SHIFT-50 Call the "V-CENT" mode. 1 BEAM PRO1. Receive "Monoscope Pattern" signal. * Select one of Q883/5/7 to do
2 (I C BUS TECTOR2. 2.Increase Setor CONTRASTdecrease MAX."V-CENT" eachby shortVolume test.key CONTROL) till the picture is centered. 3. Set BRIGHT MAX.
2
3 V-AMP50 (I C 1. Call the "V-AMP" mode. make sure the protector ON and switch to standby mode. TROL) set overscan of 9.5% typical. 2 H�V PROTEC1. Receive "Monoscope Pattern" signal.
4. During the Collector & Emitter of Q883/5/7 short,
BUS CON2. Increase or decrease "V-AMP" by Volume key to
Adjustment Spec 9.5% range +1% -0%.
H-SHIFT (50) 1. Call the "H-CENT" mode. TOR 2. Connect output of Bias Box to D603 cathode 4 (H-CENTER) 2. Increase or decrease "H-CENT" by Volume key (R610 side). 3. Set voltage of Bias Box 18V and make sure to center the picture horizontal. the protector is not work.
9
No. point Adjusting procedure/conditions Waveform and others
5 S-CORREC1. SET DATA TO 17. 4. Set voltage of Bias Box to 27V, and make sure
2 TION (I C BUS * Check the E-5 CH the Monoscope protector Pattern is then work. reCONTROL) adjust V-Slope, V-Shift and V-Amp to makesure
6 SUB-SHARPprotectors testing in +B line, check all possible damaged
adjustment is in acceptable Ring-Shaped. 3 Other 1. Once finish rectified Electrolytic Capacitor short
NESS 1. SET DATA TO 20. components on +B line. (Use random selected set for inspection) 1. Receive the "Monoscope Pattern" signal.
1 Focus
2. Press R/C to set Picture NORMAL condition. 3. Adjust focus control to get the best focusing.
A/V INPUT AND OUTPUT CHECKING PAL CHROMA ADJUSTMENT
1. Receive the "PAL Color Bar" signal (100% White 1 VIDEO AND AUDIO Color Bar, Sound 400 Hz 100% Mod). 2. Terminate the Video output with a 75 ohm imped1 SUB COLOUR 1. Receive the "PAL Colour Bar" signal. OUTPUT 3. Terminate the Audio output with a 10k ohm imVp-p ±3 dB). CONTROL) 3. Connect the oscilloscope to pedance. Make sure the O/P is as specified
No. point Adjusting procedure/conditions Waveform and others
2
ance. Make sure the output is as specified (1.0 (I C BUS 2. Press R/C to set Picture Normal condition. CHECK
Cy G B
Red cathode(D881 Cathode). » Range : 20 V/div. (AC) (Using 10:1 probe) (1.76 Vp-p ±3 dB). » Sweep time : 10 µsec/div.
4. R/C call "SUB COL" in SERVICE mode. 2 VIDEO AND 1. Using TV/AV key on the remote controller,
Adjust SUB COLOUR bus data, so 75% AUDIO INPUT make sure that the modes change in order of TV, White Red portions of PAL Color Bar be at W Y 100%W Mg R AV TV again and the video & audio output are CHECK
75% same level shown as Fig. 1-1. according to the input terminal for each mode.If
Fig. 1-1 put terminal of Front AV will be selected.
connect input to Front and Rear AV terminal, in5. Clear the SERVICE mode.
14BM2SMK2 14BM2GMK2
9-1 9-2
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