Zoom g9.2tt - Circuit Check Specifications

Circuit Check Specifications
Note : After power on in a testmode, press an
y
ke
y
onl
y
once before measurement.
No.
Specifications Inputs Conditions/notes
7seg displa
y
Keys pressed in "Test mode"
1 Current consumption 1000mA±75mA (FLASH) Short Immediately after Test mode starts All LEDs are lit.
All lit
None (Start up)
2 Power supply voltage +12.0V ± 0.5V Shor
t
Immediately after Test mode starts All LEDs are lit.
A
ll lit None (Start up)
-12.0V ± 0.5
V
Shor
t
Immediately after Test mode starts All LEDs are lit.
A
ll lit None (Start up)
+1.26V ± 0.05
V
Shor
t
Immediately after Test mode starts All LEDs are lit.
A
ll lit None (Start up)
+3.3V ± 0.15V Shor
t
Immediately after Test mode starts All LEDs are lit.
A
ll lit None (Start up)
+5.0V ± 0.25V Shor
t
Immediately after Test mode starts All LEDs are lit.
A
ll lit None (Start up)
3 Output level INPUT - OUTPUT L +13.5dBm ± 1.5dB 440Hz -30dBm Output waveform is not clipped. OUTPUT_GAIN SW=+4dBm
A
ll lit None (Start up)
INPUT - OUTPUT R -10.0dBm ± 1.5dB 440Hz -30dBm Output waveform is not clipped. OUTPUT_GAIN SW=+4dBm
A
ll lit None (Start up)
PC L - OUTPUT L -0.5dBm ± 2.0dB 440Hz ±0dB Output waveform is not clipped.
A
ll lit None (Start up)
PC R - OUTPUT R -0.5dBm ± 2.0dB 440Hz ±0dB Output waveform is not clipped.
A
ll lit None (Start up)
A
UX L - OUTPUT L -20.0dBm ± 1.5dB (*1) 440Hz -20dBm Output waveform is not clipped.
A
ll lit None (Start up)
A
UX R - OUTPUT R -20.0dBm ± 1.5dB (*1) 440Hz -20dBm Output waveform is not clipped.
A
ll lit None (Start up)
INPUT - PHONES L -2.5dBm ± 1.5dB 440Hz -30dBm Output waveform is not clipped. Load=32ohms
A
ll lit None (Start up)
INPUT - PHONES R -26.0dBm ± 1.5dB 440Hz -30dBm Output waveform is not clipped. Load=32ohms
A
ll lit None (Start up)
(TUBE_ACC circuit) INPUT - OUTPUT L -2.5dBm ± 2.0dB 440Hz -40dBm Output waveform is not clipped. SOLID STATE=MIN, TUBE(ACC)=MAX
A
ll lit None (Start up)
RETURN - SEND -20.0dBm ± 1.5dB 440Hz -20dBm Output waveform is not clipped. "rt" "PEDAL1 SETTING" key (SW618)
RETURN - SEND -20.0dBm ± 1.5dB 440Hz -20dBm Output waveform is not clipped. EXT LOOP_GAIN SW=+4dBm "rt" "PEDAL1 SETTING" key (SW618)
INPUT - SEND -20.0dBm ± 1.5dB 440Hz -20dBm Output waveform is not clipped. "tn" "PEDAL1 SETTING" key (SW618)
INPUT - SEND -6.0dBm ± 1.5dB 440Hz -20dBm Output waveform is not clipped. EXT LOOP_GAIN SW=+4dBm "tn" "PEDAL1 SETTING" key (SW618)
4 Input level INPUT - PC L -9.5dB ± 2.0dB 440Hz -40dBm Output waveform is not clipped.
A
ll lit None (Start up)
INPUT - PC R -13.0dB ± 2.0dB 440Hz -20dBm Output waveform is not clipped.
A
ll lit None (Start up)
(In Normal Mode) INPUT - PC L -37.5dB ± 2.0dB 440Hz -46dBm Normal Mode, Output waveform is not clipped. TUBE (ENG) =MAX "A" "BYPASS/TUNER" key (SW15)
(In Normal Mode) INPUT - PC R -37.5dB ± 2.0dB 440Hz -46dBm Normal Mode, Output waveform is not clipped. TUBE (ENG) =MAX "A" "BYPASS/TUNER" key (SW15)
(In Normal Mode) INPUT - PC L/R within 1.5dB 440Hz -46dBm
Make sure that difference between Lch and Rch is within 1.5dB
.
Normal mode, Output waveform is not clipped. TUBE (ENG) =MAX.
"A" "BYPASS/TUNER" key (SW15)
5 Frequency respons
e
INPUT - OUTPUT L -1.5dBm ± 1.5dB 20Hz -30dBm Output waveform is not clipped.
A
ll lit None (Start up)
(No Load) INPUT - OUTPUT R -5.0dBm ± 1.5dB 20Hz -10dBm Output waveform is not clipped.
A
ll lit None (Start up)
INPUT - OUTPUT L -19.5dBm ± 1.5dB 20kHz -50dBm Output waveform is not clipped.
A
ll lit None (Start up)
INPUT - OUTPUT R -23.0dBm ± 1.5dB 20kHz -30dBm Output waveform is not clipped.
A
ll lit None (Start up)
RETURN - SEND -21.0dBm ± 1.5dB 20Hz -20dBm Output waveform is not clipped.
A
ll lit None (Start up)
RETURN - SEND -20.0dBm ± 1.5dB 20kHz -20dBm Output waveform is not clipped.
A
ll lit None (Start up)
(TUBE_ACC circuit) INPUT - OUTPUT L -7.0dBm ± 2.5dB 100Hz -40dBm Output waveform is not clipped. SOLID STATE=MIN, TUBE(ACC)=MAX
A
ll lit None (Start up)
(TUBE_ACC circuit) INPUT - OUTPUT L -8.0dBm ± 2.5dB 4kHz -40dBm Output waveform is not clipped. SOLID STATE=MIN, TUBE(ACC)=MAX
A
ll lit None (Start up)
(TUBE_ENG circuit) INPUT - OUTPUT L +8.5dBm ± 2.0dB 100Hz -30dBm Output waveform is not clipped. BOOST=MAX,TUBE(ENG)=MIN
A
ll lit None (Start up)
(TUBE_ENG circuit) INPUT - OUTPUT R -15.0dBm ± 2.0dB 100Hz -30dBm Output waveform is not clipped. BOOST=MAX,TUBE(ENG)=MIN
A
ll lit None (Start up)
(TUBE_ENG circuit) INPUT - OUTPUT L +8.5dBm ± 2.0dB 2kHz -30dBm Output waveform is not clipped. BOOST=MAX,TUBE(ENG)=MIN
A
ll lit None (Start up)
(TUBE_ENG circuit) INPUT - OUTPUT R -15.0dBm ± 2.0dB 2kHz -30dBm Output waveform is not clipped. BOOST=MAX,TUBE(ENG)=MIN
A
ll lit None (Start up)
6 Noise level OUTPUT L -65.0dBm or less Shor
t
Insert IHF-
A
A
ll lit None (Start up)
(No Load) OUTPUT R -85.0dBm or less Shor
t
Insert IHF-
A
A
ll lit None (Start up)
(TUBE_ACC circuit) OUTPUT L -50.0dBm or less Shor
t
Insert IHF-A, SOLID STATE=MIN, TUBE (ACC) =MAX
A
ll lit None (Start up)
RETURN - SEND -90.0dBm or less Shor
t
Insert IHF-
A
A
ll lit None (Start up)
7 Harmonic distortion INPUT - OUTPUT L 0.1% or les
s
440Hz -30dBm Delay Mode, 20KHz-LPF None "BYPASS/TUNER" key (SW15)
(No Load) INPUT - OUTPUT R 0.1% or les
s
20kHz -30dBm Delay Mode, 20KHz-LPF None "BYPASS/TUNER" key (SW15)
RETURN - SEND 0.1% or les
s
440Hz -20dBm Delay Mode, 20KHz-LPF None "BYPASS/TUNER" key (SW15)
(TUBE_ACC circuit) INPUT - OUTPUT L 5.0％ or less 440Hz -40dBm Delay Mode, 20KHz-LPF, SOLID STATE=MIN, TUBE(ACC)=MAX None "BYPASS/TUNER" key (SW15)
(TUBE_ACC circuit) INPUT - OUTPUT L 10.0％ to 65.0% 440Hz -10dBm Delay Mode, 20KHz-LPF, SOLID STATE=MIN, TUBE(ACC)=MAX None "BYPASS/TUNER" key (SW15)
(TUBE_ENG circuit) INPUT - OUTPUT L 5.0％ to 60.0% 440Hz -22dBm Delay Mode, 20KHz-LPF, TUBE (ENG) =MA
X
None "BYPASS/TUNER" key (SW15)
(TUBE_ENG circuit) INPUT - OUTPUT R 5.0％ to 60.0% 440Hz -22dBm Delay Mode, 20KHz-LPF, TUBE (ENG) =MA
X
None "BYPASS/TUNER" key (SW15)
8 Function of DSP-MUTE INPUT - OUTPUT L/R Check function of Mute 440Hz -30dBm Press ”AMP SELECT” key and check muting on/off. "on/of" "AMP SELECT" key (SW5)
9 Function of ANALOG-MUTE INPUT - OUTPUT L/R Check function of Mute 440Hz -30dBm Press ”STORE/SWAP” key and check muting on/off. "on/of" "STORE/SWAP" key (SW16)
INPUT - PHONES L/R Check function of Mute 440Hz -30dBm Press ”STORE/SWAP” key and check muting on/off. "on/of" "STORE/SWAP" key (SW16)
RETURN - SEND Check function of Mute 440Hz -30dBm Press ”STORE/SWAP” key and check muting on/off. "on/of" "STORE/SWAP" key (SW16)
10 Function of DIRECT-MUTE INPUT - OUTPUT L/R Check function of Mute 440Hz -30dBm Press ”PEDAL2 SETTING” key and check muting on/off. "on/of" "PEDAL2 SETTING" key (SW20)
11 System operation
Make sure that keys, encoders, knobs, pedals, flash, and LEDs including display and indicator normally operate.
12 EX PEDAL operation EX PEDAL1_MIN 07 or more EX PEDAL1 Make sure that displayed value is "07 or more" by hexadecimal.
EX PEDAL1_MA
X
E0 to F9 EX PEDAL1 Make sure that displayed value is "E0 to F9" by hexadecimal.
EX PEDAL2-V_MIN 07 or more EX PEDAL2-
V
Make sure that displayed value is "07 or more" by hexadecimal.
EX PEDAL2-V_MA
X
E0 to F9 EX PEDAL2-
V
Make sure that displayed value is "E0 to F9" by hexadecimal.
EX PEDAL2-H_MIN 07 or more EX PEDAL2-H Make sure that displayed value is "07 or more" by hexadecimal.
EX PEDAL2-H_MA
X
90 to E
A
EX PEDAL2-H Make sure that displayed value is "D2 to EA" by hexadecimal.
* Conditions (if there is no note)
Power supply AC adaptor AD-0012
Input signal Sine wave to [INPUT] jack
Output load None (100 kilohms or more)
PHONES: 32 ohms
Energizer : TUBE=MIN, BOOST=MIN
GAIN SW=-10dBm, LEVEL=MAX
(*1) In the measurement that uses audio analyzer KENWOOD VA-2230A,
the specification should be -24.0dBm ± 1.5dB, considering the attenuation of the analyzer output level by having connected both L/R CH.
Items
A
ccelerator : SOLID STATE=MAX, TUBE=MIN
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