Aloka SSD-680EX / SSD-680STD Service Manual – PDF Download

Description

Aloka SSD-680EX / SSD-680STD Service Manual – PDF Download

Description

This is the official Aloka SSD-680EX / SSD-680STD Echo Camera Service Manual (Document No. MN2-0187, Revision-4 — 22 Jul 1994), prepared by the Aloka ME Service Center and approved for field service engineers.

The intro pages specify that the unit incorporates surface-mount technology (S.M.T.) and PCB-level repairs are performed by module replacement, with circuit-level diagrams provided only in designated block-diagram and circuit-diagram sections (see Section 6 / 7)

The manual includes full disassembly procedures, system signal flow diagrams, connector & cable routing charts, Doppler/ECG options, troubleshooting logic, alignment procedures, performance verification forms, maintenance history and hardware/system principle of operation.

Table of Contents / Section Overview

SECTION 1 — General Information

• Purpose of manual & service scope

• SMT board handling notes

• PCB unit replacement policy

• Manual change / revision guidance

SECTION 2 — Precautions

(from page listing 2-1 to 2-4)

• Electrical hazard precautions

• Mechanical hazard precautions

• X-ray / chemical safety notes

• Cleaning & servicing precautions

• Care to be taken in the field

SECTION 3 — Before Repairing

• Service-manual modification work

• Resetting backup RAM

• Color-test pattern display method

• Handling of SMD boards

• Surface-mount technology notes & PCB limits

SECTION 4 — Disassembling Procedure

(37-sheet section with step-by-step removal)

Covers:

• 680EX disassembly instructions

• 680STD disassembly instructions

• Installation procedures

• Cabinet / panel / unit removal

• Cable routing references

SECTION 5 — System Block Diagram

Shows major-signal flow & inter-board communication:

• SSD-680EX system block

• SSD-680STD system block

• Inter-unit signal routing (probe → front end → processing → display)

• Doppler, A/D, buffer and mixer chain diagrams (pages with labelled blocks & arrows)

• RF paths, IF filters, ADC paths & gain stages

• Probe relay logic, CW TX/RX blocks & buffer amps

SECTION 6 — Parts / Cable / Board Maps (excerpted page references)

Includes dozens of PCB & unit reference entries such as:

• COLOR FLOW PROCESSOR

• VIDEO I/F

• DOP INTERFACE / DOP FILTER

• FFT board

• OUTPUT board

• PHYSIO AMP / ECG MEMORY (option)

• Multiple EP-** PCB identifiers** with page-indexed service references (pages 2–4 of TOC spread)

Plus cable harness listings & connector pages for:

• CW TX / RX units

• Main panel, keyboard & front jack

• Foot switch & S-VHS connector

• Isolation transformer & TV monitor options

SECTION 7 — Option Units

• Doppler Unit (UPR-680STD → UGR-680EX upgrade)

• Power supply unit board list

• ECG Signal Display Unit (Option)

• Switch panel assembly

SECTION 8 — Troubleshooting

• PCB arrangement & ROM map

• Correction for “Fail to Start / Locking-up”

• PSU output connector list

• Checklist map

• Phenomenon code map

• Waveform charts for troubleshooting (oscilloscope reference points)

SECTION 9 — Adjustment Procedure

• PCB / unit adjustment guides

• Settings required after replacement

SECTION 10 — Performance Check

• Verification & acceptance test forms

SECTION 11 — Maintenance Information

• Preventive maintenance notes

• Revision / service history recording

SECTION 12 — History of Improvement

• Design & hardware modification records

SECTION 15 — Principle of Operation (System)

Explains overall system-level signal operation.

SECTION 16 — Principle of Operation (Hardware)

Explains microscopic hardware-level operation of internal circuits

🧰 What This Manual Helps You Do

✔ Safely disassemble and re-assemble chassis & modules
✔ Replace PCB assemblies and SMT-based units
✔ Trace RF / IF / Doppler / video signal paths
✔ Diagnose failures using waveform references
✔ Perform alignment & calibration procedures
✔ Verify performance after repair
✔ Maintain revision & service history

📂 File Details

This is the official factory service manual used by Aloka service engineers. It includes PCB replacement procedures, disassembly steps, option-unit guidance, block diagrams, cable maps, troubleshooting waveforms and alignment instructions — far more detailed than an operator manual. Download instantly and start servicing your SSD-680 system today.