Sanyo PLUS T35 - User Manual

SERVICE MANUAL
AM/FM STEREO TUNER
PLUS TS5
(EUROPE)
FM Section
Frequency range
Usable sensitivity (at Mono)
Signal-to-noise ratio
at Mono
at Stereo
Harmonic distortion
at Mono
at Stereo
Frequency response
Alternate channel selectivity
Capture ratio
AM suppression
Stereo separation at 1 kHz
Spurious response rejection
Image rejection rario
IF rejection ratio
Muting threshold
at level 1
at level 2
Antenna input
SPECIFICATIONS
AM Section
87.5 — 108MHz Frequency range
1,.8uV Sensitivity
at ferrite bar antenna
75dB at external antenna
70dB Signal-to-noise ratio
0.09%(wide), 0.15% (narrow)
0.1%(wide), 0.2%(narrow)
20Hz —15kHz(+1.0/—2.0dB)
55dB (wide), 80dB(narrow)
1.2dB(wide), 1.8dB(narrow)
60dB
48dB (wide), 42dB(narrow)
80dB
70dB
90dB
5uV
15uV
300 ohms balanced
75 ohms unbalanced
*Specifications subject to change without notice.
Selectivity
Image rejection
IF rejection
Antenna
General
Power requirements
Power consumption
Dimensions
Weight
510 — 1605kHz
300uV/m
30uV
46dB
35dB
50dB
45dB
Ferrite bar antenna
External antenna
AC: 115/220V 50Hz
16W
Approx. 440(W)x270(D)x88(H)
mm
(17-3/8x10-11/16"x3-1/2”
Approx. 5.5kg(12 Ibs. 2 ozs.)
WM-4380

Summary

Sanyo AM;FM Stereo Tuner Specifications

FM Section Specifications

Detailed technical specifications for the FM tuner section, including sensitivity, distortion, and frequency response.

AM Section Specifications

Detailed technical specifications for the AM tuner section, including sensitivity and selectivity.

General Specifications

General operational specifications such as power requirements and physical dimensions.

Detaching Cabinet and Chassis Procedures

Detaching Side Panels

Instructions for removing the left and right side panels of the unit.

Detaching the Cabinet

Steps to remove the main cabinet assembly from the chassis.

Detaching the Front Panel

Procedures for removing the front panel and its associated parts.

Detaching the Bottom Lid

Steps to remove the bottom cover of the unit.

FM Adjustments and Alignment Procedures

Instruments Used for Adjustments

List of instruments and their required specifications for performing adjustments.

FM IF Adjustment

Procedures for adjusting the FM Intermediate Frequency (IF) circuits.

FM Tracking Adjustment

Procedures for aligning the FM tracking circuit for optimal reception.

FM Tuning Meter and MPX Adjustments

FM Tuning Meter Center 0 Adjustment (Primary)

Initial adjustment for setting the FM tuning meter to its center '0' position.

FM Tuning Meter Center 0 Adjustment (Secondary)

Secondary adjustment for the FM tuning meter's center '0' point.

FM MPX Adjustment

Procedures for adjusting the FM Multiplex (MPX) circuit.

FM MPX Separation and Muting Level Adjustments

FM MPX Separation Adjustment

Adjusting channel separation for the FM Multiplex signal.

FM Muting Level Adjustment

Setting the FM muting threshold levels for proper operation.

Comprehensive FM Alignment Procedures

IF Alignment (V-Curve and S-Curve)

Alignment steps for the IF V-curve and S-curve.

Frequency Tracking and Tuning Meter Alignment

Alignment procedures for frequency tracking and tuning meter.

FM Alignment (Continued)

Tuning Meter Center 0 Alignment (Second)

Second stage adjustment for the FM tuning meter center.

IF Gain and VCO Alignment

Alignment steps for IF gain and Voltage Controlled Oscillator.

Separation and Muting Level Alignment

Alignment procedures for channel separation and muting levels.

AM Alignment Procedures

AM IF and Cover Frequency Alignment

Alignment steps for AM Intermediate Frequency and Cover Frequency.

AM Tracking and Signal Alignment

Alignment procedures for AM tracking and signal reception.

Quartz and Digital Counter Alignment

Quartz Alignment Procedures

Alignment procedures for the quartz oscillator block.

Digital Counter Frequency Display Alignment

Fine adjustment procedures for the digital frequency display.

Quartz Block Adjustment Details

VCO and Bias Adjustment

Adjustment procedures for the VCO and bias in the quartz block.

Tuning Meter Balance Adjustment

Procedure for balancing the tuning meter center indication.

Tuning LED Lighting Test

Testing the function of the tuning indicator LEDs.

Quartz Sampling Lock Principles

Quartz Sampling Lock Principle

Explanation of the fundamental principle behind the quartz sampling lock.

Quartz Sampling Lock Circuit Description

Description of the quartz sampling lock circuit's operation.

Display Unit Description

Display Unit Functionality

Overview of the display unit's capabilities: dial, signal, and tuning displays.

Dial and Frequency Display Logic

Explanation of how the dial and frequency are displayed, including logic.

Display Unit Terminals and Signal Level

Display Unit Terminal Functions

Detailed description of the functions of various terminals related to the display.

Signal Level Display Operation

Explanation of the signal level meter display and its indicators.

FM Tuning Display and Recording Level

FM Tuning Display Operation

How the FM tuning display LEDs indicate signal strength and center tuning.

REC. LEVEL Switch Function

Explanation of the REC. LEVEL switch for setting recording levels.

Dial Cord Stringing and Parts Location

Dial Cord Stringing Diagram

Diagram illustrating the correct routing for the dial cord.

Tuner Section Parts Location

Diagram showing the physical location of components on the tuner PCB.

Component Layout Diagrams

Power and Counter PCB Component Layout

Diagrams showing component placement on the power and counter PCBs.

Cabinet Exploded View

Chassis Assembly Breakdown

An exploded view illustrating the chassis and cabinet assembly.

Comprehensive Parts List

Hardware, Cabinet, and Electrical Parts

List of hardware, cabinet, and general electrical components.

Tuner PCB and Power PCB Components

Detailed list of components for the tuner and power PCBs.

Parts List (Continued)

Tuner PCB Resistors and Capacitors

Specific list of resistors and capacitors for the tuner PCB.

Power PCB Components List

List of components specifically for the power PCB.

Parts List (Continued)

Tuner PCB Capacitors Listing

Continued listing of capacitors for the tuner PCB.

Power PCB Resistors and Capacitors

List of resistors and capacitors for the power PCB.

Signal, Pointer, Quartz, Counter PCB Components

Component lists for Signal, Pointer, Quartz, and Counter PCBs.

Parts List (Continued)

Quartz PCB Components List

Listing of components specific to the Quartz PCB.

Counter PCB Components List

Detailed list of resistors and capacitors for the Counter PCB.

Parts List (Continued)

Antenna PCB Components List

Listing of components for the Antenna PCB.

Signal PCB Components List

Listing of components for the Signal PCB.

Pointer PCB Components List

Listing of components for the Pointer PCB.

System Block Diagrams

Tuner Block Diagram

Block diagram illustrating the tuner section's functional units.

Power Supply Block Diagram

Block diagram showing the power supply system.

Counter and Quartz Block Diagrams

Block diagrams for the counter and quartz sections.

Wiring and Component Layout Diagrams

Display and Pointer PCB Wiring

Wiring diagram for the display and pointer PCBs.

Counter PCB Component Layout

Diagram illustrating the component layout on the counter PCB.

Tuner Section Wiring Diagrams

Antenna PCB Wiring Diagram

Wiring diagram for the antenna PCB.

Tuner PCB Wiring Diagram

Wiring diagram detailing connections on the tuner PCB.

Power PCB Wiring Diagram

Wiring diagram for the power PCB.

Schematic Diagrams

Digital Counter Section Schematic

Schematic diagram for the digital counter circuitry.

Tuner Section Schematic Details

Detailed schematic showing tuner circuit components and connections.

Tuner Section Wiring Diagrams (Continued)

Quartz PCB Wiring Diagram

Wiring diagram for the quartz PCB.

Power, Lamp, and Switch PCB Wiring

Wiring diagrams for power, lamp, and switch PCBs.

Schematic Diagrams (Continued)

Antenna PCB Schematic

Schematic diagram for the antenna PCB.

Power, Lamp, and Switch PCB Schematics

Schematics for power, lamp, and switch PCBs.

Integrated Circuit Logic Diagrams

TC 4049 Hex Buffer;Converter Logic

Logic diagram for the TC 4049 Hex Buffer/Converter IC.

TC 4011 Quad NAND Gate Logic

Logic diagram for the TC 4011 Quad NAND Gate IC.

LB 1416 5-Digit Level Meter Logic

Logic diagram for the LB 1416 5-Digit Level Meter IC.

SN 74503 NAND Gate Logic

Logic diagram for the SN 74503 Quad NAND Gate IC.

Integrated Circuit Function Diagrams

LC7252 Frequency Display IC Diagram

Block diagram and pinout for the LC7252 frequency display IC.

LA1240 AM Tuner System IC Diagram

Block diagram and pinout for the LA1240 AM tuner IC.

DS8629 Prescaler IC Diagram

Block diagram and pinout for the DS8629 prescaler IC.

Integrated Circuit Function Diagrams (Continued)

HA 1196 FM Stereo Demodulator IC Diagram

Block diagram for the HA 1196 FM stereo demodulator IC.

LA 1231 FM IF System IC Diagram

Block diagram for the LA 1231 FM IF system IC.

NJM4558 Operational Amplifier IC Diagram

Internal circuit and pinout for the NJM4558 operational amplifier IC.

Sanyo PLUS T35 Specifications

General

Brand	Sanyo
Model	PLUS T35
Category	Tuner
Language	English