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FUNAI VCR8207CA
Service Manual


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  • Contains Circuit Diagrams
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  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of FUNAI VCR8207CA Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

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Text excerpt from page 23 (click to view)
4-3.

BASE UNIT TEST MODE

Automatic Answering System Test Mode [Start-up] While pressing the âMEMOâ, âANSWERâ and BOX3â keys all at the same time, turn on the .main power or reset the system. Then the beep tone sounds for 500 ms and the test mode starts up. Initial setting of the DSP is established and the flash memory data is checked during start-up. If the first status is not returned from the DSP during initial setting of the DSP, the initial setting of the DSP and the flash memory data test are not performed and the system enters the test mode idle state. [Test Mode Idle State] When the machine is in the test mode idle state, the LCD â0â indicator lights and the ASNWER LED, IN-USE LED and NEW CALL LED are turned off. During the test mode idle state, the DSP is in the DSP idle state (i.e., microphone, speaker and intercom are in the MUTE state), the machine is in the normal charging mode, the communication line is in the open state and the volume setting is in the initial state. However, the audio path setting is valid. The desired test mode can be selected form the test mode idle state by pressing the VOLUME +/- keys as the test modes are numerically displayed on the LCD. Press the âANSWERâ key and the system enters the test mode. Press the âERASEâ key to return from the test mode to the test mode idle state. 1. Key Input and LED Test; LCD â0â indication Select the test mode â0â from the test mode idle state using the VOLUME +/- keys. Press the âANSWERâ key and the system enters the test mode â0â [Key Input and LED test mode] . Press the keys in the following order. The LEDs light up accordingly. âMEMOâ n âERASEâ n âANSWERâ(ANSWER LED lights up)
n âGREETING PLAYâ n âGREETING RECân âTIMEân âââ n â+â(NEW CALL LED lights up) n âBOX3ân âREPEATân

3. LCD Test; LCD â2â indication Select the test mode â2â from the test mode idle state using the VOLUME +/- keys. Press the âANSWERâ key and the system enters the test mode â2â [LCD test mode]. ⢠During the âLCD testâ mode, the following indication patterns are displayed alternately every 0.5 second interval by the LCD segments. Indication pattern 1

Indication pattern 2

⢠The system returns to the test mode idle state when the âERASEâ key is pressed during the LCD test mode. 4. DSP Signal Detection Test; LCD â3â indication Select the test mode â3â from the test mode idle state using the VOLUME +/- keys. Press the âANSWERâ key and the system enters the test mode â3â [DSP Signal Detection Test mode] . During the âDSP Signal Detection Testâ mode, detection of the FSK, CAS, DTMF, VOX and Call Progress Tone signals is performed. ⢠The LCD indications of BOX1, BOX2 and BOX 3 are turned off. The LCD indications of MESSAGE COUNTER shows â- -â, and that of MAILBOX flashes. ⢠The communication line is closed, the DSP enter the following state: The send state is established, the MIC MUTE state is established, the call reception is set to ready, the speaker is turned on and the system waits for receiving the signal. ⢠While the DTMF is being detected, the DTMF number is indicated on the MESSAGE COUNTER of the LCD. When asterisk (*) is detected, the indication âAâ appears. When sharp â#â is detected, the indication âCâ appears. When the DTMF is not detected, the indication â- -â remains appear. ⢠While the VOX is being detected, the LCD indication of BOX1 appears. When the VOX is not detected, the LCD remains turned off. ⢠While the Call Progress Tone (BUSY TONE, DIAL TONE) is being detected, the LCD indication of BOX2 appears. When the Call Progress Tone is not detected, the LCD remains turned off. ⢠When the CAS is detected, the LCD indication of BOX3 appears. After the CAS is normally detected once, the LCD remains turned on. ⢠The system returns to the test mode idle state when the âERASEâ key is pressed during the DSP Signal Detection Test mode.

âBOX2â n âSKIPâ n âBOX1â n âHANDSET LOCATORâ(INUSE LED lights up) ⢠Whenever the respective keys are pressed, the key touch tone sounds. If the keys are press in the wrong order, the error tone sounds and the system returns to the test mode idle state. When all keys are pressed in the correct order, the ringer of completion sounds and the system returns to the test mode idle state. ⢠When the keys up to âANSWERâ are pressed, the ANSWER LED lights up. When the keys up to â+â are pressed, the NEW CALL LED lights up. When the keys up to âHANDSET LOCATORâ are pressed, the IN-USE LED lights up. 2. Call Arrival Detection Test (Related to ASIC); LCD â1â indication Select the test mode â1â from the test mode idle state using the VOLUME +/- keys. Press the âANSWERâ key and the system enters the test mode â1â [Call Arrival Detection Test mode]. ⢠During the âCall Arrival Detection Testâ mode, the communication line is in the open state, the machine monitors the RING DET (IC201, 25-pin: port 30). When the RING DET port is âLOWâ (the arrival call is present), the ANSWER LED lights up. When the RING DET port is âHIGHâ (the arrival call is absent), the ANSWER LED turns off. ⢠The system returns to the test mode idle state when the âERASEâ key is pressed during the Call Arrival Detection Test mode.

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