Bogen-PRO4-8-12-16-Operation-Manual 电路图 维修手册.pdf

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1、54-5037-01 Printed in Korea 9903 ProHold Models PRO4, PRO8, PRO12, and PRO16 Users Guide RadioFans.CN 收音机爱 好者资料库 FCC Notice Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. This equi

2、pment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reason- able protection against harmful interference when the equipment is operated in a residential environment. This equipment generate

3、s, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful inter- ference to radio communications. Table of Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Front

4、Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Controls and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Unpacking and Inspection . . .

5、. . . . . . . . . . . . . . . . . . . . . . . . . . .6 Installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Connecting a Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Connecting to the Telephone System . . . . . . . . . . . . . . . . . .

6、 . . . .6 Connecting an External Speaker . . . . . . . . . . . . . . . . . . . . . . . . .6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 External Trigger Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Troubleshooting . . . . .

7、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2 RadioFans.CN 收音机爱 好者资料库 Introduction The Bogen

8、ProHold Series of Music-On-Hold (MOH) Digital Announcers are designed to play a digitally recorded announcement over the MOH bus of most telephone systems. Four models are available. The PRO4 has a recording time of 4 minutes. The PRO8 has a recording time of 8 minutes. The PRO12 has a recording tim

9、e of 12 minutes. The PRO16 has a recording time of 16 minutes. To operate the unit, a cassette tape is placed in the tape compartment. The unit automati- cally plays (previews) a portion of the audio program over its monitor speaker, and then pauses so that you can change tapes if desired. If you le

10、ave the cassette in the compartment, the message is downloaded into digital memory. The stored message then plays continuously (it can also be set for single-play operation). Solid-state operation results in less wear of the tape and tape drive mechanism, increasing reliability and performance. Each

11、 unit features: Automatic downloading, with preview function, from a standard cassette tape Automatic reload after power outage High reliability - no tape wear or maintenance problems Choice of 600-ohm or 1-watt (8-ohm) output Built-in monitor speaker with on/off switch Volume control (for monitor s

12、peaker and outputs) One time play capability (external contact trigger) Status (LED) indicators To change a message, simply insert a new cassette. The new message is previewed and then automatically downloaded. Once a message has been loaded, the cassette rewinds and remains in the tape compartment.

13、 Then, if the power goes out, or if you turn your system off, the message is automatically reloaded once power is restored. The unit provides 600-ohm and 1-watt output jacks for connection to the MOH bus of a telephone system, external speaker, or public address system. The unit mounts easily on a w

14、all and comes complete with wall-mounting hardware, an audio patch cord, EXT trigger cord, and 12V AC power supply which can be plugged into a 120V AC outlet. 3 RadioFans.CN 收音机爱 好者资料库 Front Panel Features Cassette Tape Compartment High-quality cassette tape drive mechanism accepts a standard casset

15、te tape. Compartment door has self-adjusting feet to assure proper positioning of the cassette. The cassette tape size should not exceed 60 minutes. Monitor Speaker Lets you monitor the tape during the preview and downloading process, and when the unit is operating. A speaker on/off switch is includ

16、ed on the connector panel. LED Indicators For POWER, PLAY, PRO8 2 blinks; PRO12 3 blinks; and PRO16 4 blinks. The unit will rewind the cassette tape (if necessary) and then begin to play. It will play (preview) approximately 5 seconds of the audio message and then stop (the LOAD and PLAY indicators

17、do not illuminate during the preview). The tape heads then retract for approximately 5 seconds following the preview, allowing you to remove the cassette, if desired. If you do not remove the cassette, it will rewind and the message will be down- loaded into digital memory (the LOAD indicator illumi

18、nates when downloading starts). The downloading process starts when audio signal is sensed, ensuring that memory capacity will not be consumed during tape leader travel or for a delay of the audio recording. Downloading will stop (and the LOAD indicator will go out) when 5 seconds of silence has ela

19、psed following the recording, or when memory capacity is exceeded, or when the cas- sette tape reaches the end of its travel. After the message has been downloaded, the cassette automatically rewinds, and should be stored in the tape compartment for reloading after power outages. Following the downl

20、oading process, the message will play continuously (the PLAY LED will illuminate). Use the VOLUME control on the top panel to adjust the level at the LINE 600 output and 1 WATT output. Use the SPEAKER switch to turn off the monitor speaker (do not use VOLUME control). 7 External Trigger Operation Th

21、e ProHold can be set for single-play operation, activated by an external trigger. (Note: The PLAY LED on the front panel illuminates only during digital playback.) The TRIG mini-jack on the top panel accepts a mono or stereo mini-plug, as shown in the illustration below. When the plug is inserted, t

22、he unit automatically switches to single-play mode (if the trigger is inserted during the playback, the message will play through to the end and then stop). The external trigger offers two modes of operation. If the contacts are closed and then opened within 5 (five) seconds, the message will play c

23、ompletely and then stop (any further contact closure action at the trigger is ignored until the playback is complete). If the con- tacts are closed for more than five seconds, playback will stop when the contacts are opened and the unit will return to its idle state. If a stereo mini-plug is used, t

24、he middle ring and barrel provides 0V DC or 5V DC level which can be used to indicate unit status: The 0V DC level indicates digital playback opera- tion; 5V DC indicates the unit has stopped playing the message. (Note: the signal is for mon- itoring purposes only and can not be used to directly ope

25、rate external equipment.) 8 Troubleshooting Power LED does not light Turn POWER switch ON. Check power supply connection. Tape plays too fast The tape is not threading properly. Remove the cassette and tighten up any slack in the cassette. Output sounds distorted over telephone Reduce volume or chan

26、ge type of output used. Cannot remove cassette because head is engaged Turn power off and then on. Wait for head to retract then remove the cassette. Care and Maintenance The impact-resistant housing and quality construction of the PROHOLD virtually elimi- nates the need for service or maintenance.

27、If the tape drive mechanism receives extensive wear, the tape head, capstan, and pinch roller can be cleaned with isopropyl alcohol using a cotton-tipped applicator. There are no user-serviceable components within the unit or the power supply. Refer all servicing to qualified personnel. 9 Specificat

28、ions Sampling Frequency:64 Kilobits/sec. (KBPS) Memory Capacity:PRO4 - 4 min.; PRO8 - 8 min.; PRO12 - 12 min.; PRO16 - 16 min. Power Required:12V AC/DC. Power supply included with the unit provides 12V AC 800mA from a 120V AC source External Speaker Power:1 watt into 8 ohms Input:High-quality casset

29、te-tape mechanism. Fully automatic operation Output:LINE 600 /transformer-balanced via RCA phono jack; 1 watt into 8-ohms via RCA jack (can be used to power an external speaker) Controls:POWER ON/OFF; SPEAKER ON/OFF; VOLUME control (for monitor speaker, 1 WATT and LINE 600 output jacks); TRIG(ger) jack for single play operation Indicators:LEDs for POWER, PLAY and LOAD Mounting:Desktop or wall, template and hardware included Dimensions:7” x 10” x 3-1/2” Shipping Weight:5 lbs. Tape Cassette:Normal Bias (120S) recommended, C-60 size or smaller 10