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Super manual it contains all the things you need to service your Marantz 2100.
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A very easy to understand and use manual. Well worth the money.
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Very good information with clear drawings. Thanks!
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The ease of this purchase was a good start. The content of this manual was exactly all I needed to retore my Tandberg 64.
All of the mechanical and electrical information is contained in the manual and the quality of the document makes reading the data easy.
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KVT-715DVD,725DVD/-B,735DVD KVT-745DVD,765DVD,815DVD
ADJUSTMENT
� Video Adjustment (X14-939, X35-428)
* VIDEO adjustments use an accessory remote controller. (The selector of the remote controller is set the Audio mode). 1. Enter the test mode : While pressing and holding the Eject key and SRC key, reset the unit. 2. The main menu screen of the test mode is operated and changed to the chroma IC adjustment mode. In this time, adjustment value appears on the displayed (lower right position). 3. Adjustment value is changed with 8 and 0 key (10 key) for remote controller. 4. Pressing PLAY/PAUSE key is fixed adjustment value of each item. If you can cancel adjustment value, press again PLAY/ PAUSE key. 5. Different item is chosen for 7 and 9 key (key) for remote controller. All item adjustment for step 3 to 5. 6. If all chroma adjustment is finished, pressing DIRECT key that adjustment value is written in EEPROM memory. Exit for adjustment mode when writing for EEPROM.
Adjustment No. item 1 VCO Free run 2 Chroma VCO
Measurement point TP307A
Adjustment Adjustment value part VR301 (X35-4280) Adjust VR301 so that HSY (IC301 9pin) frequency is set to 15,734kHz±10Hz (NTSC type), 15,625kHz±10Hz (PAL type). NTSC : 15.734kHz±50Hz, PAL : 15.625±50Hz Connect the TP-HD (R328 between R383) and TP-VD (R380 between R381) between to GND line.
Measuring instrument Frequency counter Frequency counter
IC303 32PIN
TEST mode CH16
3
BRIGHT
CN850 59pin (G OUT)
TEST mode CH6 TEST mode CH13 TEST mode CH5 TEST mode CH10 TEST mode CH2 TEST mode CH11 TEST mode CH12 TEST mode CH8
Adjust the amplitude value so that the waveform between the 1 step signal to the negative 1 step signal is 3.2V±0.05V. Adjust the amplitude value so that the waveform between the 8 step signal to the negative 8 step signal is 3.0V±0.05V. Fixed in adjustment value is 7F.
Oscilloscope
4
CONTRAST
CN850 59pin (G OUT)
Oscilloscope
5
BLACK LIMITER
CN850 59pin (G OUT) CN850 59pin (G OUT) CN850 59pin (G OUT)
Oscilloscope
6
WHITE LIMITER
Fixed in adjustment value is 7F.
Oscilloscope
7
Y GAIN
Adjust the amplitude value so that the waveform between the pedestal to the 9 step signal is 2.45V±0.05V. Adjust the amplitude value so that the waveform between the pedestal to the 2 step signal is 1.1V±0.05V. Adjust the amplitude value so that the waveform between the pedestal to the 10 step signal is 3.4V±0.05V. 1. Connect the oscilloscope to 58pin and 59pin between GND line. 2. It is adjusted so that red signal level bigger 0.1V±0.05V than green signal (for 1step signal).
Oscilloscope
8
GAMMA1
CN850 59pin (G OUT)
Oscilloscope
9
GAMMA2
CN850 59pin (G OUT)
Oscilloscope
10
R SUB BRIGHT
CN850 59pin (G OUT) CN850 58pin (R OUT)
Oscilloscope
11
B SUB BRIGHT
CN850 59pin (G OUT) CN850 60pin (B OUT)
TEST mode CH9
1. Connect the oscilloscope to 60pin and 59pin between GND line. 2. It is adjusted so that blue signal level bigger 0.1V±0.05V than green signal (for 1step signal).
Oscilloscope
22
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