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Very quality copy of original service manual, which contains the circuit diagrams, PCB and lists of components, well as recommendation for calibration procedures of device, also everything else, that need for repair, tuning and use this oscilloscope.
All presented copies have high-resolution, so you can view all in detail.
This manual will very useful for simple owners and for repairers.
I recommend these manual, because myself is owner of Philips PM3216 and I need sometimes servicing these oscilloscope (principally calibrating).
Also, these document is an example of excellent design of technical documentation.
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Excellent printing quality.
A complete and very usefull service manual with all details.
GREAT SERVICE AT VERY LOW PRICE!
A+++++++++++++++++++++++++
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manual excelente completo , diagramas y esquemas bien presentados y buena calidad de imagen.
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muy buen manual completo de buena calidad de impresion preciso y detallado , muy útil para la reparación.
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The service manual is a good quality scan of the Panasonic NV-850, which is electrically identical to the Philips VR 6920, but mecanically just nearly.
TKR-850
INSTALLATION
3. External Speaker (KES-4)
The TKR-850 has a internal built-in speaker (5W/8�), and the external speaker output from the TEST/SPKR connector (15-pin) on the rear of the radio is 4W/4�. Use external speaker KES-4.
3-1. Connection for the KES-4 With the TKR-850 s When taking the AF output from the TEST/ SPKR connector (15-pin) on the rear of the radio
The following tools are required for changing the connector.
Fig. 4-1
� Extracting tool
The following extracting tool is recommended : Molex Inc. Order No. : 11-03-0002 1. Remove the connector with jumper from the external speaker connector on the rear panel of the radio. (Fig. 41) Note : Save the jumper, which is required when the radio is used without the external speaker. 2. Remove the terminals with the jumper from the connector housing holes number 9 and 12 using the extracting tool.
Removing the jumper lead (Fig. 4-2)
1) Insert the extracting tool (11-03-0002) into the connector while pushing the jumper lead in the direction of (a). 2) Push the extracting tool into collapse the barbs of the crimp terminal. 3) Pull out the lead while continuing to push the extracting tool in the direction (b). 3. Reinsert the terminal with the black and white stripe lead into hole number 12, and the terminal with the black lead into hole number 6. (Fig. 4-3) 4. Attach the connector to the external speaker connector on the radio.
Fig. 4-2
Note :
Relationship between TEST/SPKR connector (15-pin) connection and speaker output. When pins 9 and 12 are shorted : Built-in internal speaker is used. When pins 9 and 12 are open and output is from pins 6 and 12 : KES-4 is used.
Fig. 4-3
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