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There are currently no product reviews.
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Exactly what was needed to assess the product - excellent value and great service
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Nice to have the service manual for the Sony DCR-TRV345E now. The document is of excellent quality.
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MACKIE HR824 26 pages English-only Service Manual contains:
1) HR824 technical overview with the description of front and rear panel switches.
2) HR824 specs
3) Block Diagram
4) Wiring Diagram
5) Packaging management
6) Spare part & final assembly list (for PCB rev A and B) + exploded view
7) Test Procedures (where, how to measure voltage...) including Test Point diagram on the PCB.
8) IC and Transistor charts.
Excellent guide: very clear, good scan quality enabling us to print readable diagram :-)
Note:
Mackie HR824 make extensive use of surface mount devices (SMD). Service on the HR824 must
only be undertaken by experienced service technicians with the right tools, experience and patience to perform surface mount rework when needed.
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This Service manual is very well scanned and its clean to read, no any anti-theft words that un-english could understand. I got my CCD600 working with this manual and it´s clear shematics :)
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I was very pleased with the service provided and was surprised at how good the quality was of the manual. I thought it may be a third generation copy or so, but it is as good as the websites that charge 3 times this much. I repair some electronics for family and friends without charge, so this is perfect for me. Thank you very much.
LC-20B2H/M
ADJUSTING PROCEDURE OF EACH SECTION
The best adjustment is made before shipping. If any position deviation is found or after part replace is performed, adjust as follows.
1. Preparation for Adjustments
(1)Use the exclusive-use AC adapter or stable DC power supply. AC adapter: UADP-0219CEZZ DC power supply: 13 ± 0.5V 3.5A
[1] Adjustment Procedure
1-1. Adjusting the checker Turning on the power (initialization) ) Setting the model and size in inches ) Transferring the model-specified data to the E2PROM (I2C) ) Calling the adjustment process mode ) Starting the adjustment (+B) 1-2. Adjusting the finish process Reassembling the set ) Turning on the power ) Calling the adjustment process mode (using the remote controller) ) Adjusting the counter bias, TV contrast and white balance
[2] Calling the MAIN adjustment process mode
There are the following three ways to choose from. � Turn on the power and press the "ADJUST PROCESS" key on the remote controller. � Set KEY 4 and KEY 5, pins (81) and (82), respectively, on the microprocessor to the "L" level. Now turn on the power. � For servicing, hold down the INPUT SELECT and MENU keys at once, and turn on the POWER switch. (Make sure the process mode "K" appears at the top left of the screen.) Then press the CH DOWN and VOL DOWN keys at once. (Make sure the adjustment process mode screen shows up.) To quit this mode, turn off the power. (Or turn off the POWER switch or use the remote controller�s OFF key.)
[3] Using the keys for the adjustment process
Selecting a reception channel � Using the CH UP/DOWN key, turn up and down reception (broadcasting) channels. Just click on the key, and channels are selected on by one. Hold down the key, and the next receivable channel is searched up and down. � Adjustment items Adjust each of the items by using the MENU SELECT, CURSOR UP/DOWN, CH UP/DOWN and VOL UP/ DOWN keys (on the set or on the remote controller). � Select an adjustment item using the CURSOR UP/DOWN key. � An adjustment item is toggled on and off by activating the MENU SELECT key (next item). Let�s suppose that the item at the bottom of a page is now selected. When the MENU SELECT key is activated here, the item at the top of the next page will be selected.
[4] Initialization
4-1. Set pins (81) and (82) of IC2001 (microprocessor) to GND. Turn on the power. 4-2. Select a model number ( C2H, B2H ). 4-3. Select a size in inches ( 10, 13, 15, 20 ).
[5] Adjustment
5-1. +B adjustment (R3760 Variable resistor) 1) Receive the color bar signal. 2) Adjust the voltage at SC3403 (pin (38)) to 5.00± 0.02 V. Note: The 5.0 V level is used as reference for all the line voltages. Make this adjustment as precisely as possible. 5-2. Counter bias adjustment: COM BIAS on page 2 Adjust the "COM BIAS" setting until the contrast gets optimum (the black portion blackest). For Model LC-13B2H,
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