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Tuner & Amplifier Section; Tuner Adjustments - Sanyo DC-X8CT Service Manual

Separate mini component system

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TUNER ADJUSTMENTS

• Use a plastic screw driver for adjustments.
• MODE : ST (Stereo)
• Speaker impedance : 4 ohm
• TUNING
FM : 87.5 - 108MHz
MW: 522 - 1611kHz
1. FM
Step Adjusting
Circuit
Input
98.0MHz.Input Level
1
IF(0V)
Adjustment
FM Antenna SG=66dB
2
Cover
Voltage
2. MW
Step Adjusting
Circuit
Input
1
Cover
Voltage
2
Tracking
Connect AM SG to
Test loop Ant.
TUNER & AMPLIFIER SECTION
Standatd Input: 60dB
Antenna
Dev.
Connection
Output
Alignment voltage IC231
V
3-22pin(TP24,25) is 0.0
---
Connect Digital DC voltmeter to
---
TP11(H), TP12(E).
SG Modulation
Antenna, IRE Loop, Distance : 60 cm
Connection
Output
---
Connect Digital DC voltmeter to
---
TP11(H )and TP12(E).
Connect to VTVM
point TP13(L)or TP14(R) and TP15(E).
: 75 unbalanced , Modulation : 1 kHz
: ±22.5kHz(MONO) 22.5kHz(STEREO) ±6.75kHz(PILOT)
SG
Frequency
Position
98MHz
0.05V
87.5MHZ
108.0MHZ
: 1kHz, 30%
SG
Frequency
Position
522kHZ
1611kHZ
603KHZ
1404kHZ
- 9 -
Set
Adjustment
Alignment voltage IC231
Low
XF233
3-22pin is 0.0
Low
---
more than 0.8V
High
---
less than 9.0V
Set
Adjustment
Low
more than 0.8V
L2153
High
less than 9.0V
Low
L2151-a
AF Maximum
High
Remark
0.05V
Remark

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