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There are currently no product reviews.
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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.
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The service was great and the document was also great. Highly recommend!!!!
If anyone has a users manual... Please email me. need one. $ [email protected]
14B-S5 21B-S5
PIF CHECKING PURITY ADJUSTMENT
NO. Adjustment part Adjusting procedure conditions Waveform and others
TUNER IFT Get tuner ready to receive E-9 CH sig1 PURITY 1. Receive GREEN-ONLY signal. Adjust the
(PRESET) nal, but with no signal input. ADJUSTMENT beam current to ~700 (21")/~500 µA (14").
Adjust PLL data. 2. Degauss CRT enough with the degausing
a b
10k 1n60 1000p 2. Connect the sweep generator's output cable coil.
tuner antenna. (RF SWEEP) Oscilloscope IF OUT Note: Follow the Job Instruction Sheet to ad-
3. Adjust sweep generator's to 80dBµV. 100k 75ohm just the magnetic field. 4. Connect the response lead (use LOW IMPEDVertical Bv : -0.010 mT Fig. 4-1 must have the probe alone connected). (0.40 gauss)
P C
ANCE probe with wave detector; see Fig.1) to (-0.10 gauss) the tuner's IF output terminal. (This terminal Fig. 1 Horizontal Bh : +0.040 mT
E-9 CH
5. Set the RF AGC to 0 6 V with no saturation (Reference: page 8/21) 6. Adjust tuner IF coil to obtain waveform netic field and keep the static convergence 4. Observe the points a, b as shown in Fig. 4-1
with waveform. 3. Maintain purity magnet at the zero mag-
as shown in Fig. 2. roughly adjusted. -1.5+/-0.8dB A
Note: Be sure to keep tuner cover in posithrough microscope. Adjust the landings Fig. 2 5. Orient the raster rotation to 0 eastward. 6. Tighten up the deflection coil screws. » Tightening torque: 108 ± 20 N (11 ±2 kgf) 7. Make sure CRT corners landing meet the
tion during this adjustment. to A rank requirements. B
A = B
Note: This adjustment must be done after
TAKE OVER » Signal Strength: 57 ±1 dBµV (75 open) For the 50 ohm signal strength warming up the unit for 30 minutes POINT gauge, when not using 50/75 or longer with a beam current over ADJUSTMENT 2. Connect the oscilloscope to TP201 (Tuner�s impedance adapter, signal 700 (21") µA. (I C BUS AGC Terminal) as shown in Fig. 3. strength is 52 dBµV(75 ohm (For 14", the beam current should be ±12 CONTROL) open), instead of 57 dBµV A over 500 ±1 µA). Note: Set the service mode by JA122 & 0.1V The loss of using impedance B � ess R/C key change to RGB adapter. mono colour mode. * For the following colours press R/C RGB key to change.
Oscilloscope
A rank requirements. If not, stick the magnet sheet to correct it. Rank "A" (on right of the CRT)
Fig. 4-2 2 RF-AGC 1. Receive "PAL COLOUR BAR" signal. Note:
8
Fig. 3 (on left of the CRT)
(75 ohm open). + TP201 Precaution: JA124 (short) then press factory proc-
Bias box TV Set A = B
+
� Fig. 4-3
» Bias box: About 4.5 V
Red Green Blue only
Rank "A"
3. Call "AG" mode in service mode. Adjust the
* Press R/C RGB key for 1 second "AG" bus data to obtain the Tuner output pin will change to RGB mono colour mode.
Signal colour
screen cleared
in NORMAL MODE, the colour drop 0.1 V below maximum voltage. 4. Change the antenna input signal to 63~67dBµV, and make sure there is no noise.
5. Turn up the input signal 90~95 dBµV to be
sure that there is no cross modulation beat.
8-1 8-2
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