TK-880/H (UHF) mobile service manual - The Repeater Builder's ...

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TK-880/H ADJUSTMENT Test Mode ■ Test Mode Operating Features This transceiver has a test mode. To enter test mode, press [A] key and turn power on. Hold [A] key until test channel No. and test signalling No. appears on LCD. Test mode can be inhibited by programming. To exit test mode, switch the power on again. The following functions are available in test mode. • Controls (“FCN” appears) [PTT] Used when making a transmission. [MON] Monitor on and off. [SCN] MSK 1200 bps and 2400 bps. [A] Function off. [B] Compander function on and off. [C] Beat shift on and off. [D] Function off. [System Up/Down] Changes channel (Trunking format) [Group Up/Down] Changes channel (Conventional format) [Volume Up/Down] Volume up/down. • Controls ("FCN" not appears) [PTT] Used when making a transmission. [MON] Monitor on and off. [SCN] Sets to the tuning mode. [A] Function on. [B] RF power high and low. [C] Changes signalling. [D] Changes wide and narrow [System Up/Down] Changes channel (Trunking format) [Group Up/Down] Changes channel (Conventional format) [Volume Up/Down] Volume up/down. Note : If a [SCN], [A], [B], [C] key is pressed during transmission, the DTMF corresponding to the key that was pressed is sent. • LCD indicator “SCN” Unused “ ” Lights at compander on. “AUX” Unused. “P” Lights at RF power low. “MON” Lights at monitor on. “SVC” Unused. “ ” Lights at MSK 2400 bps. • LED indicator Red LED Lights during transmission. Green LED Lights when there is a carrier. • Sub LCD indicator “FCN” Appears at function on. “n” Appears at narrow on. ■ Frequency and Signalling The set has been adjusted for the frequencies shown in the following table. When required, re-adjust them following the adjustment procedure to obtain the frequencies you want in actual operation. • Frequency (MHz) Channel K,HK K2,HK2 K3,HK3 No. RX TX RX TX RX TX 1 470.05000 470.10000 498.55000 498.60000 418.05000 418.10000 2 450.05000 450.10000 485.05000 485.10000 400.05000 400.10000 3 489.95000 489.90000 511.95000 511.90000 429.95000 429.90000 4 470.00000 470.00000 491.00000 491.00000 418.00000 418.00000 5 470.20000 470.20000 491.20000 491.20000 418.20000 418.20000 6 470.40000 470.40000 491.40000 491.40000 418.40000 418.40000 7~16 – – • Signalling Signalling No. RX TX 1 None None 2 None 100Hz square 3 LTR data LTR data 4 QT 67.0Hz QT 67.0Hz 5 QT 151.4Hz QT 151.4Hz 6 QT 210.7Hz QT 210.7Hz 7 QT 250.3Hz QT 250.3Hz 8 DQT D023N DQT D023N 9 DQT D754I DQT D754I 10 DTMF DEC, (159D) DTMF ENC, (159D) 11 None DTMF tone 9 12 2-tone 321.7/928.1Hz None 13 Single tone 1200Hz Single tone 1200Hz 14 None MSK 15 MSK code MSK code • Preparations for tuning the transceiver Before attempting to tune the transceiver, connect the unit to a suitable power supply. Whenever the transmitter is turned, the unit must be connected to a suitable dummy load (i.e. power meter). The speaker output connector must be terminated with a 4Ω dummy load and connected to an AC voltmeter and an audio distortion meter or a SINAD measurement meter at all times during tuning. • Transceiver tuning (To place transceiver in tuning mode) Channel appears on LCD. Set channel according to tuning requirements. LCD display (Test mode) 1 – 1 Channel No. Signalling No. 50
ADJUSTMENT TK-880/H Press [SCN], now in tuning mode. Use [B] button to write tuning data through tuning modes, and [System Up/ Down] : Trunking format, [Group Up/Down] : Conventional format to adjust tuning requirements (1 to 256 appears on LCD). Use [C] button to select the adjustment item through tuning modes. Use [A] button to adjust 3-point or 5-point tuning, and use [D] button to switch between wide/narrow. LCD display (Tuning mode) FREQ 1 Adjustment item Adjustment (1~256) ■ Tuning Mode FREQ 256 Frequency adj. [C] HPOW 256 Hi power [C] [A] L HPOW 256 Hi power (Low) [C] Display Function name [A] [A] [A] [A] [A] [C] L2 HPOW 256 Hi power (Low2) [C] C HPOW 256 Hi power (Cen) [C] H2 HPOW 256 Hi power (Hi2) [C] H HPOW 256 Hi power (Hi) [C] LPOW 256 Low power [C] [A] [A] [A] [A] [A] L LPOW 256 L2 LPOW 256 C LPOW 256 H2 LPOW 256 H LPOW 256 Low power (Low) [C] Low power (Low2) [C] Low power (Cen) [C] Low power (Hi2) [C] Low power (Hi) [A] [C] [C] NARROW n MAX 256 Max deviation (Narrow) [C] [D] WIDE MAX 256 Max deviation (Wide) [C] [A] [A] [A] [A] L MAX 256 Max deviation (W,L) [C] C MAX 256 Max deviation (W,C) [C] H MAX 256 Max deviation (W,H) [C] [C] [A] [A] [A] n BAL 256 DQT balance (Narrow) [C] [D] BAL 256 DQT balance (Wide) [C] [A] L BAL 256 DQT balance (W,L) [C] [C] C BAL 256 DQT balance (W,C) [C] H BAL 256 DQT balance (W,H) [C] [A] [A] [A] n FQT 256 Fine QT (Narrow) [C] [D] FQT 256 Fine QT (Wide) [C] [A] L FQT 256 Fine QT (W,L) [C] [C] C FQT 256 Fine QT (W,C) [C] H FQT 256 Fine QT (W,H) [C] [A] [A] [A] n FDQT 256 Fine DQT (Narrow) [C] [D] FDQT 256 Fine DQT (Wide) [C] [A] L FDQT 256 Fine DQT (W,L) [C] [C] C FDQT 256 Fine DQT (W,C) [C] H FDQT 256 Fine DQT (W,H) [C] [A] [A] [A] n FLTR 256 Fine LTR (Narrow) [C] n DTMF 256 DTMF deviation (Narrow) [C] n FMSK 256 MSK deviation (Narrow) [C] n TONE 256 Tone deviation (Narrow) [C] NARROW n SQL 256 Squelch (Narrow) [D] [D] [D] [D] [D] FLTR 256 Fine LTR (Wide) [C] DTMF 256 DTMF deviation (Wide) [C] FMSK 256 MSK deviation (Wide) [C] TONE 256 Tone deviation (Wide) [C] SENS 256 Seisitivity [C] WIDE SQL 256 Squelch (Wide) [C] [A] [A] L FLTR 256 Fine LTR (W,L) [C] [C] C FLTR 256 Fine LTR (W,C) [C] H FLTR 256 Fine LTR (W,H) [C] [A] [A] [A] L SENS 256 Sensitivity (Low) [C] C SENS 256 Sensitivity (Cen) [C] H SENS 256 Sensitivity (Hi) [C] [C] 51
Page 1 and 2: UHF FM TRANSCEIVER TK-880/H SERVICE
Page 3 and 4: GENERAL / OPERATING FEATURES TK-880
Page 5 and 6: OPERATING FEATURES TK-880/H • Mes
Page 7 and 8: OPERATING FEATURES TK-880/H ■ Sys
Page 9 and 10: OPERATING FEATURES TK-880/H ■ Sub
Page 11 and 12: OPERATING FEATURES TK-880/H ■ “
Page 13 and 14: OPERATING FEATURES TK-880/H • Sta
Page 15 and 16: OPERATING FEATURES / REALIGNMENT TK
Page 17 and 18: REALIGNMENT TK-880/H Notes : • To
Page 19 and 20: REALIGNMENT TK-880/H 10. Function S
Page 21 and 22: INSTALLATION TK-880/H 1-3. Data Equ
Page 23 and 24: INSTALLATION TK-880/H SB LOK E DEO
Page 25 and 26: INSTALLATION TK-880/H 6-3. Installi
Page 27 and 28: INSTALLATION TK-880/H 6. Rotate the
Page 29 and 30: CIRCUIT DESCRIPTION TK-880/H ■ AF
Page 31 and 32: CIRCUIT DESCRIPTION TK-880/H ■ Di
Page 33 and 34: SEMICONDUCTOR DATA TK-880/H Micropr
Page 35 and 36: DESCRIPTION OF COMPONENTS TK-880/H
Page 37 and 38: PARTS LIST TK-880/H CAPACITORS CC 4
Page 39 and 40: PARTS LIST TK-880/H C63 CK73FB1E103
Page 41 and 42: PARTS LIST TK-880/H C432 CK73FB1E10
Page 43 and 44: PARTS LIST TK-880/H R62 RK73GB1J221
Page 45 and 46: PARTS LIST TK-880/H TX-RX UNIT (X57
Page 47 and 48: PARTS LIST TK-880/H C117 CK73GB1H47
Page 49: D PACKING E TK-880/H 11 DC cord (E3
Page 53 and 54: ADJUSTMENT TK-880/H Adjustment Loca
Page 55 and 56: Transmitter Section Item Condition
Page 57 and 58: ADJUSTMENT TK-880/H Item Condition
Page 59 and 60: 1 2 3 A B C D E F G H I J K L M N O
Page 61 and 62: A B C D E F G H I J K L M N O P Q R
Page 63 and 64: I I 1 A B C D E F G H I J K L M N O
Page 65 and 66: A B C D E F G H I J K L M N O P Q R
Page 67 and 68: TK-880/H LEVEL DIAGRAM TK-880/H Rec
Page 69 and 70: SPECIFICATIONS TK-880/H GENERAL Fre

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