Yamaha RX-V357, Service Manual

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RX-V357/HTR-5830
29
RX-V357/HTR-5830
THM/Fan (temperature detection/fan drive level)
THM: Temperature detection value
Normal value: 30 to 147 (Reference: 5V=500%)
If THM is out of the normal value range, the
protection function works to turn off the power.
Fan: Current fan drive level on the left and the past fan
drive history on the right.
(Not applied to these models.)
10. AD DATA CHECK/FAN TEST
This menu is used to display the A/D conversion value of
the terminals which detects panel keys of the main unit
and protection functions in % using the sub-menu. During
signal processing, the condition before execution is
maintained.
* The figures in the diagram are given as reference only.
DC/PS (protection detection)
DC: DC protection value
Normal value: 17 to 29 (Reference: 5V=100%)
If DC is out of the normal value range, the protection
function works to turn off the power.
PS: Power supply voltage protection value
Normal value: 8 to 26 (Reference: 5V=100%)
If PS is out of the normal value range, the protection
function works to turn off the power.
REC-OUT
Not applied to these models.
IMP SW/POWER LIMIT (Impedance/power limiter detection)
IMP: 8 or 6 ohms impedance switch setting (U, C models)
PL: Power limiter detection value (Reference: 5.0V=255%)
The voltage value of pin No. 91 of IC242 is displayed.
The port (pin No. 4 of IC242) output is controlled by
using the input voltage.
value of pin No. 91 of IC242.
When higher than VthH, the port output is changed
from H to L.
When lower than VthL, the port output is changed
from L to H.
Note:
Vth=Threshold voltage
[Table 1]
U, C, R, T, K, A, L models
K0/K1 (Panel key of main unit) (Reference: 5V=100%)
A/D of the key fails to function properly when the standard
value is deviated. In this case, check the constant of
partial pressure resistor, solder condition, etc. Refer to
table 1.
FAN DRIVE TEST (Not applied to these models.)
HIGH
FAN DRIVE TEST (Not applied to these models.)
LOW
FAN DRIVE TEST (Not applied to these models.)
MID
When K0/K1 menu is selected, keys become non-
operable due to detection of the values of all keys.
However, it is possible to advance to the next sub-
menu by turning the VOLUME of the main unit. When
using this function, note that turning the VOLUME more
than 2 clicks will cause the volume value to change.
Display (%) K0 K1
0 - 6 6CH INPUT TUNING MODE
7 - 13 INPUT SELECT RIGHT MEMORY
14 - 21 INPUT SELECT LEFT PRESET / TUNING
22 - 31 INPUT MODE PRESET / TUNING
32 - 41 PROGRAM A/B/C/D/E
42 - 53 PROGRAM FM/AM
54 - 63 BASS / PRESET / TUNING
64 - 72 BASS / TREBLE - PTY SEEK MODE
73 - 80 STEREO PTY SEEK START
81 - 88 CONTROL EON
89 - 95 SPEAKERS RDS MODE
96-100 KEY OFF KEY OFF
B, G, E models
Display (%) K0 K1
0 - 6 6CH INPUT TUNING MODE
7 - 13 INPUT SELECT RIGHT MEMORY
14 - 21 INPUT SELECT LEFT PRESET / TUNING
22 - 31 INPUT MODE PRESET / TUNING
32 - 41 PROGRAM A/B/C/D/E
42 - 53 PROGRAM FM/AM
54 - 63 BASS / PRESET / TUNING
64 - 72 BASS / TREBLE - –
73 - 80 STEREO –
81 - 88 CONTROL –
89 - 95 SPEAKERS –
96-100 KEY OFF KEY OFF
Detection level
Output level
U, C models (8ohms)
U, C models (6ohms)
R, T, K, A, B, G, E, L models (6ohms)
PORT
No. 91
VthL
2.41V
2.77V
2.87V
VthH
2.90V
3.25V
3.35V
U, C models (8ohms)
U, C models (6ohms)
R, T, K, A, B, G, E, L models (6ohms)
PORT
No. 4
VthL
3.82V
3.55V
3.63V
VthH
0V
0V
0V