In The Case Of Adjust After Assembling - Zoom g9.2tt Service Manual

2.2 In the case of adjust after assembling

2.2.1 Measurement
Refer to below sequence.
1. Open the bottom cover of G9.2tt
2. Turn on G9.2tt in Test Mode.
3. Press any keys to carry out the DSP download test.
4. Set each analog knobs, switch and pedals as below table. Setting of other
knobs and switch don't affect.
5. Input sin wave (440Hz, -40dBm) to the INPUT Jack (J200).
6. Measure a level of TP5 ACC, and adjust the VR700 for fitting into range
of provided level.
7. Measure a level of L/MONO OUTPUT JACK (J202), and adjust the
VR702 for fitting into range of provided level.
8. Change a tube if that level doesn't fit into range of provided level, and
adjusts again.
Provided levels are
[1]. [TP5 ACC: -17.0 dBm ± 1.5dBm]
[2]. [OUTPUT: -2.5dBm ± 1.5dBm]
Both levels can be changed by adjusting VR700. Therefore, if only level of [2]
doesn't fit into range of provided level, make this level fit into the range by adjusting
the VR700. As long as the level of [1] is in the range.
For more details about the position of TP5, refer to Figure 2 and 3.
Table 2.2.1
TUBE (ACC)
SOLID STATE (ACC)
TUBE (ENG)
BOOST (ENG)
LEVEL
OUTPUT GAIN SW
EXT LOOP GAIN SW
ALL EX PEDALs
- 20 -
10 (MAX)
0 (MIN)
0 (MIN)
0 (MIN)
MAX
-10dBm
ANY
ANY